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      1 /*	$NetBSD: lvmcmdlib.c,v 1.1.1.3 2009/12/02 00:25:51 haad Exp $	*/
      2 
      3 /*
      4  * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
      5  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
      6  *
      7  * This file is part of LVM2.
      8  *
      9  * This copyrighted material is made available to anyone wishing to use,
     10  * modify, copy, or redistribute it subject to the terms and conditions
     11  * of the GNU Lesser General Public License v.2.1.
     12  *
     13  * You should have received a copy of the GNU Lesser General Public License
     14  * along with this program; if not, write to the Free Software Foundation,
     15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
     16  */
     17 
     18 #include "tools.h"
     19 #include "lvm2cmdline.h"
     20 #include "label.h"
     21 #include "memlock.h"
     22 #include "lvm-version.h"
     23 
     24 #include "lvm2cmd.h"
     25 
     26 #include <signal.h>
     27 #include <syslog.h>
     28 #include <libgen.h>
     29 #include <sys/stat.h>
     30 #include <time.h>
     31 #include <sys/resource.h>
     32 
     33 void *cmdlib_lvm2_init(unsigned static_compile)
     34 {
     35 	struct cmd_context *cmd;
     36 
     37 	lvm_register_commands();
     38 
     39 	init_is_static(static_compile);
     40 	if (!(cmd = init_lvm()))
     41 		return NULL;
     42 
     43 	return (void *) cmd;
     44 }
     45 
     46 int lvm2_run(void *handle, const char *cmdline)
     47 {
     48 	int argc, ret, oneoff = 0;
     49 	char *args[MAX_ARGS], **argv, *cmdcopy = NULL;
     50 	struct cmd_context *cmd;
     51 
     52 	argv = args;
     53 
     54 	if (!handle) {
     55 		oneoff = 1;
     56 		if (!(handle = lvm2_init())) {
     57 			log_error("Handle initialisation failed.");
     58 			return ECMD_FAILED;
     59 		}
     60 	}
     61 
     62 	cmd = (struct cmd_context *) handle;
     63 
     64 	cmd->argv = argv;
     65 
     66 	if (!(cmdcopy = dm_strdup(cmdline))) {
     67 		log_error("Cmdline copy failed.");
     68 		ret = ECMD_FAILED;
     69 		goto out;
     70 	}
     71 
     72 	if (lvm_split(cmdcopy, &argc, argv, MAX_ARGS) == MAX_ARGS) {
     73 		log_error("Too many arguments.  Limit is %d.", MAX_ARGS);
     74 		ret = EINVALID_CMD_LINE;
     75 		goto out;
     76 	}
     77 
     78 	if (!argc) {
     79 		log_error("No command supplied");
     80 		ret = EINVALID_CMD_LINE;
     81 		goto out;
     82 	}
     83 
     84 	/* FIXME Temporary - move to libdevmapper */
     85 	ret = ECMD_PROCESSED;
     86 	if (!strcmp(cmdline, "_memlock_inc"))
     87 		memlock_inc_daemon();
     88 	else if (!strcmp(cmdline, "_memlock_dec"))
     89 		memlock_dec_daemon();
     90 	else
     91 		ret = lvm_run_command(cmd, argc, argv);
     92 
     93       out:
     94 	dm_free(cmdcopy);
     95 
     96 	if (oneoff)
     97 		lvm2_exit(handle);
     98 
     99 	return ret;
    100 }
    101 
    102 void lvm2_log_level(void *handle, int level)
    103 {
    104 	struct cmd_context *cmd = (struct cmd_context *) handle;
    105 
    106 	cmd->default_settings.verbose = level - VERBOSE_BASE_LEVEL;
    107 
    108 	return;
    109 }
    110 
    111 void lvm2_log_fn(lvm2_log_fn_t log_fn)
    112 {
    113 	init_log_fn(log_fn);
    114 }
    115 
    116 void lvm2_exit(void *handle)
    117 {
    118 	struct cmd_context *cmd = (struct cmd_context *) handle;
    119 
    120 	lvm_fin(cmd);
    121 }
    122