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1999-09-26  Thorsten Kukuk  <kukuk@suse.de>

	* nscd/connections.c: Invalidate caches on request.
	* nscd/nscd-client.h: Add INVALIDATE to request_type.
	* nscd/nscd.c: Add invalidate cache option.
	* nscd/nscd.conf: Change log directory to /var/log (FHS).
This commit is contained in:
Ulrich Drepper 1999-09-27 00:22:04 +00:00
parent 6e42b0f1ac
commit 756409c4cf
5 changed files with 83 additions and 9 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
1999-09-26 Thorsten Kukuk <kukuk@suse.de>
* nscd/connections.c: Invalidate caches on request.
* nscd/nscd-client.h: Add INVALIDATE to request_type.
* nscd/nscd.c: Add invalidate cache option.
* nscd/nscd.conf: Change log directory to /var/log (FHS).
1999-09-24 Ulrich Drepper <drepper@cygnus.com>
* nis/nss_nisplus/nisplus-parser.c (_nss_nisplus_parse_grent): Do

32
nscd/connections.c
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@ -61,7 +61,8 @@ const char *serv2str[LASTREQ] =
[GETHOSTBYADDR] = "GETHOSTBYADDR",
[GETHOSTBYADDRv6] = "GETHOSTBYADDRv6",
[SHUTDOWN] = "SHUTDOWN",
[GETSTAT] = "GETSTAT"
[GETSTAT] = "GETSTAT",
[INVALIDATE] = "INVALIDATE"
};
/* The control data structures for the services. */
@ -193,6 +194,22 @@ close_sockets (void)
close (sock);
}
static void
invalidate_cache (void *key)
{
dbtype number;
if (strcmp (key, "passwd") == 0)
number = pwddb;
else if (strcmp (key, "group") == 0)
number = grpdb;
else if (strcmp (key, "hosts") == 0)
number = hstdb;
else return;
prune_cache (&dbs[number], LONG_MAX);
}
/* Handle new request. */
static void
@ -272,9 +289,13 @@ cannot handle old request version %d; current version is %d"),
pthread_rwlock_unlock (&db->lock);
}
else if (debug_level > 0)
{
if (req->type == INVALIDATE)
dbg_log ("\t%s (%s)", serv2str[req->type], key);
else
if (debug_level > 0)
dbg_log ("\t%s", serv2str[req->type]);
}
/* Handle the request. */
switch (req->type)
@ -313,11 +334,14 @@ cannot handle old request version %d; current version is %d"),
case GETSTAT:
case SHUTDOWN:
/* Accept shutdown and getstat only from root */
case INVALIDATE:
/* Accept shutdown, getstat and invalidate only from root */
if (secure_in_use && uid == 0)
{
if (req->type == GETSTAT)
send_stats (fd, dbs);
else if (req->type == INVALIDATE)
invalidate_cache (key);
else
termination_handler (0);
}
@ -338,6 +362,8 @@ cannot handle old request version %d; current version is %d"),
{
if (req->type == GETSTAT)
send_stats (fd, dbs);
else if (req->type == INVALIDATE)
invalidate_cache (key);
else
termination_handler (0);
}

7
nscd/nscd-client.h
View File

@ -1,6 +1,6 @@
/* Copyright (c) 1998 Free Software Foundation, Inc.
/* Copyright (c) 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1998.
Contributed by Thorsten Kukuk <kukuk@suse.de>, 1998.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
@ -50,7 +50,8 @@ typedef enum
LASTDBREQ = GETHOSTBYADDRv6,
SHUTDOWN, /* Shut the server down. */
GETSTAT, /* Get the server statistic. */
LASTREQ,
INVALIDATE, /* Invalidate one special cache. */
LASTREQ
} request_type;

40
nscd/nscd.c
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@ -84,6 +84,8 @@ static const struct argp_option options[] =
{ "nthreads", 't', N_("NUMBER"), 0, N_("Start NUMBER threads") },
{ "shutdown", 'K', NULL, 0, N_("Shut the server down") },
{ "statistic", 'g', NULL, 0, N_("Print current configuration statistic") },
{ "invalidate", 'i', N_("TABLE"), 0,
N_("Invalidate the specified cache") },
{ "secure", 'S', N_("TABLE,yes"), 0, N_("Use separate cache for each user")},
{ NULL, 0, NULL, 0, NULL }
};
@ -210,6 +212,44 @@ parse_opt (int key, char *arg, struct argp_state *state)
receive_print_stats ();
/* Does not return. */
case 'i':
if (getuid () != 0)
error (EXIT_FAILURE, 0, _("Only root is allowed to use this option!"));
else
{
int sock = nscd_open_socket ();
request_header req;
ssize_t nbytes;
if (sock == -1)
exit (EXIT_FAILURE);
if (strcmp (arg, "passwd") == 0)
req.key_len = sizeof "passwd";
else if (strcmp (arg, "group") == 0)
req.key_len = sizeof "group";
else if (strcmp (arg, "hosts") == 0)
req.key_len = sizeof "hosts";
else
return ARGP_ERR_UNKNOWN;
req.version = NSCD_VERSION;
req.type = INVALIDATE;
nbytes = TEMP_FAILURE_RETRY (write (sock, &req,
sizeof (request_header)));
if (nbytes != sizeof (request_header))
{
close (sock);
exit (EXIT_FAILURE);
}
nbytes = TEMP_FAILURE_RETRY (write (sock, (void *)arg, req.key_len));
close (sock);
exit (nbytes != req.key_len ? EXIT_FAILURE : EXIT_SUCCESS);
}
case 't':
nthreads = atol (arg);
break;

2
nscd/nscd.conf
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@ -19,7 +19,7 @@
#
# logfile /var/adm/nscd.log
# logfile /var/log/nscd.log
# threads 6
debug-level 0