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-rw-r--r--source3/utils/net.c7
-rw-r--r--source3/utils/net_g_lock.c213
-rw-r--r--source3/utils/net_proto.h3
3 files changed, 223 insertions, 0 deletions
diff --git a/source3/utils/net.c b/source3/utils/net.c
index 85c3c7dced..0c5f0807ff 100644
--- a/source3/utils/net.c
+++ b/source3/utils/net.c
@@ -612,6 +612,13 @@ static struct functable net_func[] = {
N_(" Use 'net help lookup' to get more information about 'net "
"lookup' commands.")
},
+ { "g_lock",
+ net_g_lock,
+ NET_TRANSPORT_LOCAL,
+ N_("Manipulate the global lock table"),
+ N_(" Use 'net help g_lock' to get more information about "
+ "'net g_lock' commands.")
+ },
{ "join",
net_join,
NET_TRANSPORT_ADS | NET_TRANSPORT_RPC,
diff --git a/source3/utils/net_g_lock.c b/source3/utils/net_g_lock.c
new file mode 100644
index 0000000000..f30ed331be
--- /dev/null
+++ b/source3/utils/net_g_lock.c
@@ -0,0 +1,213 @@
+/*
+ * Samba Unix/Linux SMB client library
+ * Interface to the g_lock facility
+ * Copyright (C) Volker Lendecke 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+#include "net.h"
+#include "g_lock.h"
+
+static bool net_g_lock_init(TALLOC_CTX *mem_ctx,
+ struct tevent_context **pev,
+ struct messaging_context **pmsg,
+ struct g_lock_ctx **pg_ctx)
+{
+ struct tevent_context *ev = NULL;
+ struct messaging_context *msg = NULL;
+ struct g_lock_ctx *g_ctx = NULL;
+
+ ev = tevent_context_init(talloc_tos());
+ if (ev == NULL) {
+ d_fprintf(stderr, "ERROR: could not init event context\n");
+ goto fail;
+ }
+ msg = messaging_init(talloc_tos(), server_id_self(), ev);
+ if (msg == NULL) {
+ d_fprintf(stderr, "ERROR: could not init messaging context\n");
+ goto fail;
+ }
+ g_ctx = g_lock_ctx_init(talloc_tos(), msg);
+ if (g_ctx == NULL) {
+ d_fprintf(stderr, "ERROR: could not init g_lock context\n");
+ goto fail;
+ }
+
+ *pev = ev;
+ *pmsg = msg;
+ *pg_ctx = g_ctx;
+ return true;
+fail:
+ TALLOC_FREE(g_ctx);
+ TALLOC_FREE(msg);
+ TALLOC_FREE(ev);
+ return false;
+}
+
+
+static int net_g_lock_do(struct net_context *c, int argc, const char **argv)
+{
+ struct tevent_context *ev = NULL;
+ struct messaging_context *msg = NULL;
+ struct g_lock_ctx *g_ctx = NULL;
+ const char *name, *cmd;
+ int timeout, res;
+ bool locked = false;
+ NTSTATUS status;
+ int ret = -1;
+
+ if (argc != 3) {
+ d_printf("Usage: net g_lock do <lockname> <timeout> "
+ "<command>\n");
+ return -1;
+ }
+ name = argv[0];
+ timeout = atoi(argv[1]);
+ cmd = argv[2];
+
+ if (!net_g_lock_init(talloc_tos(), &ev, &msg, &g_ctx)) {
+ goto done;
+ }
+
+ status = g_lock_lock(g_ctx, name, G_LOCK_WRITE,
+ timeval_set(timeout / 1000, timeout % 1000));
+ if (!NT_STATUS_IS_OK(status)) {
+ d_fprintf(stderr, "ERROR: Could not get lock: %s\n",
+ nt_errstr(status));
+ goto done;
+ }
+ locked = true;
+
+ res = system(cmd);
+
+ if (res == -1) {
+ d_fprintf(stderr, "ERROR: system() returned %s\n",
+ strerror(errno));
+ goto done;
+ }
+ d_fprintf(stderr, "command returned %d\n", res);
+
+ ret = 0;
+
+done:
+ if (locked) {
+ g_lock_unlock(g_ctx, name);
+ }
+ TALLOC_FREE(g_ctx);
+ TALLOC_FREE(msg);
+ TALLOC_FREE(ev);
+ return ret;
+}
+
+static int net_g_lock_dump_fn(struct server_id pid, enum g_lock_type lock_type,
+ void *private_data)
+{
+ char *pidstr;
+
+ pidstr = procid_str(talloc_tos(), &pid);
+ d_printf("%s: %s (%s)\n", pidstr,
+ (lock_type & 1) ? "WRITE" : "READ",
+ (lock_type & G_LOCK_PENDING) ? "pending" : "holder");
+ TALLOC_FREE(pidstr);
+ return 0;
+}
+
+static int net_g_lock_dump(struct net_context *c, int argc, const char **argv)
+{
+ struct tevent_context *ev = NULL;
+ struct messaging_context *msg = NULL;
+ struct g_lock_ctx *g_ctx = NULL;
+ NTSTATUS status;
+ int ret = -1;
+
+ if (argc != 1) {
+ d_printf("Usage: net g_lock dump <lockname>\n");
+ return -1;
+ }
+
+ if (!net_g_lock_init(talloc_tos(), &ev, &msg, &g_ctx)) {
+ goto done;
+ }
+
+ status = g_lock_dump(g_ctx, argv[0], net_g_lock_dump_fn, NULL);
+
+ ret = 0;
+done:
+ TALLOC_FREE(g_ctx);
+ TALLOC_FREE(msg);
+ TALLOC_FREE(ev);
+ return ret;
+}
+
+static int net_g_lock_locks_fn(const char *name, void *private_data)
+{
+ d_printf("%s\n", name);
+ return 0;
+}
+
+static int net_g_lock_locks(struct net_context *c, int argc, const char **argv)
+{
+ struct tevent_context *ev = NULL;
+ struct messaging_context *msg = NULL;
+ struct g_lock_ctx *g_ctx = NULL;
+ int ret = -1;
+
+ if (argc != 0) {
+ d_printf("Usage: net g_lock locks\n");
+ return -1;
+ }
+
+ if (!net_g_lock_init(talloc_tos(), &ev, &msg, &g_ctx)) {
+ goto done;
+ }
+
+ ret = g_lock_locks(g_ctx, net_g_lock_locks_fn, NULL);
+done:
+ TALLOC_FREE(g_ctx);
+ TALLOC_FREE(msg);
+ TALLOC_FREE(ev);
+ return ret;
+}
+
+int net_g_lock(struct net_context *c, int argc, const char **argv)
+{
+ struct functable func[] = {
+ {
+ "do",
+ net_g_lock_do,
+ NET_TRANSPORT_LOCAL,
+ N_("Execute a shell command under a lock"),
+ N_("net g_lock do <lock name> <timeout> <command>\n")
+ },
+ {
+ "locks",
+ net_g_lock_locks,
+ NET_TRANSPORT_LOCAL,
+ N_("List all locknames"),
+ N_("net g_lock locks\n")
+ },
+ {
+ "dump",
+ net_g_lock_dump,
+ NET_TRANSPORT_LOCAL,
+ N_("Dump a g_lock locking table"),
+ N_("net g_lock dump <lock name>\n")
+ },
+ {NULL, NULL, 0, NULL, NULL}
+ };
+
+ return net_run_function(c, argc, argv, "net g_lock", func);
+}
diff --git a/source3/utils/net_proto.h b/source3/utils/net_proto.h
index 098e2a22be..540d31e6b1 100644
--- a/source3/utils/net_proto.h
+++ b/source3/utils/net_proto.h
@@ -497,4 +497,7 @@ NTSTATUS net_lookup_sid_from_name(struct net_context *c, TALLOC_CTX *ctx,
char *stdin_new_passwd( void);
char *get_pass( const char *prompt, bool stdin_get);
+/* The following definitions come from utils/net_g_lock.c */
+int net_g_lock(struct net_context *c, int argc, const char **argv);
+
#endif /* _NET_PROTO_H_ */
generated by cgit (git 2.34.1) at 2024-11-29 00:42:03 +0000