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authorUlrich Drepper <drepper@redhat.com>1999-09-27 00:22:04 +0000
committerUlrich Drepper <drepper@redhat.com>1999-09-27 00:22:04 +0000
commit756409c4cffe5a4ad6ef965c7cf14eecc3bf5760 (patch)
tree1bbd17925a97ce9935231b2b3e034418d27dfad3 /nscd
parent6e42b0f1ac30da9806b6917378bf19335328096d (diff)
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Update.
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).
Diffstat (limited to 'nscd')
-rw-r--r--nscd/connections.c36
-rw-r--r--nscd/nscd-client.h7
-rw-r--r--nscd/nscd.c40
-rw-r--r--nscd/nscd.conf2
4 files changed, 76 insertions, 9 deletions
diff --git a/nscd/connections.c b/nscd/connections.c
index eef2568863..cbacf9650a 100644
--- a/nscd/connections.c
+++ b/nscd/connections.c
@@ -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)
- dbg_log ("\t%s", serv2str[req->type]);
+ else if (debug_level > 0)
+ {
+ if (req->type == INVALIDATE)
+ dbg_log ("\t%s (%s)", serv2str[req->type], key);
+ else
+ 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);
}
diff --git a/nscd/nscd-client.h b/nscd/nscd-client.h
index 0c52f91c36..33c4845aee 100644
--- a/nscd/nscd-client.h
+++ b/nscd/nscd-client.h
@@ -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;
diff --git a/nscd/nscd.c b/nscd/nscd.c
index 8c61406d2f..c4187f13bc 100644
--- a/nscd/nscd.c
+++ b/nscd/nscd.c
@@ -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;
diff --git a/nscd/nscd.conf b/nscd/nscd.conf
index d2b53a7aa3..0e43da33f5 100644
--- a/nscd/nscd.conf
+++ b/nscd/nscd.conf
@@ -19,7 +19,7 @@
#
-# logfile /var/adm/nscd.log
+# logfile /var/log/nscd.log
# threads 6
debug-level 0