1
0
mirror of git://sourceware.org/git/lvm2.git synced 2024-12-30 17:18:21 +03:00
lvm2/tools/dumpconfig.c
Zdenek Kabelac fcbef05aae doc: change fsf address
Hmm rpmlint suggest fsf is using a different address these days,
so lets keep it up-to-date
2016-01-21 12:11:37 +01:00

356 lines
10 KiB
C

/*
* Copyright (C) 2003-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2015 Red Hat, Inc. All rights reserved.
*
* This file is part of LVM2.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License v.2.1.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "tools.h"
static int _get_vsn(struct cmd_context *cmd, uint16_t *version_int)
{
const char *vsn;
unsigned int major, minor, patchlevel;
if (arg_count(cmd, atversion_ARG))
vsn = arg_str_value(cmd, atversion_ARG, NULL);
else if (arg_count(cmd, sinceversion_ARG))
vsn = arg_str_value(cmd, sinceversion_ARG, NULL);
else
vsn = LVM_VERSION;
if (sscanf(vsn, "%u.%u.%u", &major, &minor, &patchlevel) != 3) {
log_error("Incorrect version format.");
return 0;
}
*version_int = vsn(major, minor, patchlevel);
return 1;
}
static int _do_def_check(struct config_def_tree_spec *spec,
struct dm_config_tree *cft,
struct cft_check_handle **cft_check_handle)
{
struct cft_check_handle *handle;
if (!(handle = get_config_tree_check_handle(spec->cmd, cft)))
return 0;
handle->force_check = 1;
handle->suppress_messages = 1;
if (spec->type == CFG_DEF_TREE_DIFF) {
if (!handle->check_diff)
handle->skip_if_checked = 0;
handle->check_diff = 1;
} else {
handle->skip_if_checked = 1;
handle->check_diff = 0;
}
handle->ignoreunsupported = spec->ignoreunsupported;
handle->ignoreadvanced = spec->ignoreadvanced;
config_def_check(handle);
*cft_check_handle = handle;
return 1;
}
static int _merge_config_cascade(struct cmd_context *cmd, struct dm_config_tree *cft_cascaded,
struct dm_config_tree **cft_merged)
{
if (!cft_cascaded)
return 1;
if (!*cft_merged && !(*cft_merged = config_open(CONFIG_MERGED_FILES, NULL, 0)))
return_0;
if (!_merge_config_cascade(cmd, cft_cascaded->cascade, cft_merged))
return_0;
return merge_config_tree(cmd, *cft_merged, cft_cascaded, CONFIG_MERGE_TYPE_RAW);
}
static int _config_validate(struct cmd_context *cmd, struct dm_config_tree *cft)
{
struct cft_check_handle *handle;
if (!(handle = get_config_tree_check_handle(cmd, cft)))
return 1;
handle->force_check = 1;
handle->skip_if_checked = 1;
handle->suppress_messages = 0;
return config_def_check(handle);
}
int dumpconfig(struct cmd_context *cmd, int argc, char **argv)
{
const char *file = arg_str_value(cmd, file_ARG, NULL);
const char *type = arg_str_value(cmd, configtype_ARG, arg_count(cmd, list_ARG) ? "list" : "current");
struct config_def_tree_spec tree_spec = {0};
struct dm_config_tree *cft = NULL;
struct cft_check_handle *cft_check_handle = NULL;
struct profile *profile = NULL;
int r = ECMD_PROCESSED;
tree_spec.cmd = cmd;
if (arg_count(cmd, configtype_ARG) && arg_count(cmd, validate_ARG)) {
log_error("Only one of --type and --validate permitted.");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, configtype_ARG) && arg_count(cmd, list_ARG)) {
log_error("Only one of --type and --list permitted.");
return EINVALID_CMD_LINE;
}
if (arg_count(cmd, atversion_ARG)) {
if (arg_count(cmd, sinceversion_ARG)) {
log_error("Only one of --atversion and --sinceversion permitted.");
return EINVALID_CMD_LINE;
}
if (!arg_count(cmd, configtype_ARG) && !arg_count(cmd, list_ARG)) {
log_error("--atversion requires --type or --list");
return EINVALID_CMD_LINE;
}
} else if (arg_count(cmd, sinceversion_ARG)) {
if (!arg_count(cmd, configtype_ARG) || strcmp(type, "new")) {
log_error("--sinceversion requires --type new");
return EINVALID_CMD_LINE;
}
}
if (arg_count(cmd, ignoreadvanced_ARG))
tree_spec.ignoreadvanced = 1;
if (arg_count(cmd, ignoreunsupported_ARG)) {
if (arg_count(cmd, showunsupported_ARG)) {
log_error("Only one of --ignoreunsupported and --showunsupported permitted.");
return EINVALID_CMD_LINE;
}
tree_spec.ignoreunsupported = 1;
} else if (arg_count(cmd, showunsupported_ARG)) {
tree_spec.ignoreunsupported = 0;
} else if (strcmp(type, "current") && strcmp(type, "diff")) {
/*
* By default hide unsupported settings
* for all display types except "current"
* and "diff".
*/
tree_spec.ignoreunsupported = 1;
}
if (strcmp(type, "current") && strcmp(type, "diff")) {
/*
* By default hide deprecated settings
* for all display types except "current"
* and "diff" unless --showdeprecated is set.
*
* N.B. Deprecated settings are visible if
* --atversion is used with a version that
* is lower than the version in which the
* setting was deprecated.
*/
if (!arg_count(cmd, showdeprecated_ARG))
tree_spec.ignoredeprecated = 1;
}
if (arg_count(cmd, ignorelocal_ARG))
tree_spec.ignorelocal = 1;
if (!strcmp(type, "current") || !strcmp(type, "full")) {
if (arg_count(cmd, atversion_ARG)) {
log_error("--atversion has no effect with --type %s", type);
return EINVALID_CMD_LINE;
}
if ((arg_count(cmd, ignoreunsupported_ARG) ||
arg_count(cmd, ignoreadvanced_ARG)) &&
!strcmp(type, "current")) {
/* FIXME: allow these even for --type current */
log_error("--ignoreadvanced and --ignoreunsupported has "
"no effect with --type current");
return EINVALID_CMD_LINE;
}
} else if (arg_count(cmd, mergedconfig_ARG)) {
log_error("--mergedconfig has no effect without --type current or --type full");
return EINVALID_CMD_LINE;
}
if (!_get_vsn(cmd, &tree_spec.version))
return EINVALID_CMD_LINE;
/*
* The profile specified by --profile cmd arg is like --commandprofile,
* but it is used just for dumping the profile content and not for
* application.
*/
if (arg_count(cmd, profile_ARG) &&
(!(profile = add_profile(cmd, arg_str_value(cmd, profile_ARG, NULL), CONFIG_PROFILE_COMMAND)) ||
!override_config_tree_from_profile(cmd, profile))) {
log_error("Failed to load profile %s.", arg_str_value(cmd, profile_ARG, NULL));
return ECMD_FAILED;
}
/*
* Set the 'cft' to work with based on whether we need the plain
* config tree or merged config tree cascade if --mergedconfig is used.
*/
if ((arg_count(cmd, mergedconfig_ARG) || !strcmp(type, "full")) && cmd->cft->cascade) {
if (!_merge_config_cascade(cmd, cmd->cft, &cft)) {
log_error("Failed to merge configuration.");
r = ECMD_FAILED;
goto out;
}
} else
cft = cmd->cft;
tree_spec.current_cft = cft;
if (arg_count(cmd, validate_ARG)) {
if (_config_validate(cmd, cft)) {
log_print("LVM configuration valid.");
goto out;
} else {
log_error("LVM configuration invalid.");
r = ECMD_FAILED;
goto out;
}
}
if (!strcmp(type, "list") || arg_count(cmd, list_ARG)) {
tree_spec.type = CFG_DEF_TREE_LIST;
if (arg_count(cmd, withcomments_ARG)) {
log_error("--withcomments has no effect with --type list");
return EINVALID_CMD_LINE;
}
/* list type does not require status check */
} else if (!strcmp(type, "full")) {
tree_spec.type = CFG_DEF_TREE_FULL;
if (!_do_def_check(&tree_spec, cft, &cft_check_handle)) {
r = ECMD_FAILED;
goto_out;
}
} else if (!strcmp(type, "current")) {
tree_spec.type = CFG_DEF_TREE_CURRENT;
if (!_do_def_check(&tree_spec, cft, &cft_check_handle)) {
r = ECMD_FAILED;
goto_out;
}
}
else if (!strcmp(type, "missing")) {
tree_spec.type = CFG_DEF_TREE_MISSING;
if (!_do_def_check(&tree_spec, cft, &cft_check_handle)) {
r = ECMD_FAILED;
goto_out;
}
}
else if (!strcmp(type, "default")) {
tree_spec.type = CFG_DEF_TREE_DEFAULT;
/* default type does not require check status */
}
else if (!strcmp(type, "diff")) {
tree_spec.type = CFG_DEF_TREE_DIFF;
if (!_do_def_check(&tree_spec, cft, &cft_check_handle)) {
r = ECMD_FAILED;
goto_out;
}
}
else if (!strcmp(type, "new")) {
tree_spec.type = arg_count(cmd, sinceversion_ARG) ? CFG_DEF_TREE_NEW_SINCE
: CFG_DEF_TREE_NEW;
/* new type does not require check status */
}
else if (!strcmp(type, "profilable")) {
tree_spec.type = CFG_DEF_TREE_PROFILABLE;
/* profilable type does not require check status */
}
else if (!strcmp(type, "profilable-command")) {
tree_spec.type = CFG_DEF_TREE_PROFILABLE_CMD;
/* profilable-command type does not require check status */
}
else if (!strcmp(type, "profilable-metadata")) {
tree_spec.type = CFG_DEF_TREE_PROFILABLE_MDA;
/* profilable-metadata type does not require check status */
}
else {
log_error("Incorrect type of configuration specified. "
"Expected one of: current, default, diff, full, list, missing, "
"new, profilable, profilable-command, profilable-metadata.");
r = EINVALID_CMD_LINE;
goto out;
}
if (arg_count(cmd, withsummary_ARG) || arg_count(cmd, list_ARG))
tree_spec.withsummary = 1;
if (arg_count(cmd, withcomments_ARG))
tree_spec.withcomments = 1;
if (arg_count(cmd, unconfigured_ARG))
tree_spec.unconfigured = 1;
if (arg_count(cmd, withversions_ARG))
tree_spec.withversions = 1;
if (arg_count(cmd, withspaces_ARG))
tree_spec.withspaces = 1;
if (cft_check_handle)
tree_spec.check_status = cft_check_handle->status;
if ((tree_spec.type != CFG_DEF_TREE_CURRENT) &&
(tree_spec.type != CFG_DEF_TREE_DIFF) &&
!(cft = config_def_create_tree(&tree_spec))) {
r = ECMD_FAILED;
goto_out;
}
if (!config_write(cft, &tree_spec, file, argc, argv)) {
stack;
r = ECMD_FAILED;
}
out:
if (tree_spec.current_cft && (tree_spec.current_cft != cft) &&
(tree_spec.current_cft != cmd->cft))
/*
* This happens in case of CFG_DEF_TREE_FULL where we
* have merged explicitly defined config trees and also
* we have used default tree.
*/
dm_config_destroy(tree_spec.current_cft);
if (cft && (cft != cmd->cft))
dm_config_destroy(cft);
else if (profile)
remove_config_tree_by_source(cmd, CONFIG_PROFILE_COMMAND);
/*
* The cmd->cft (the "current" tree) is destroyed
* together with cmd context destroy...
*/
return r;
}
int config(struct cmd_context *cmd, int argc, char **argv)
{
return dumpconfig(cmd, argc, argv);
}
int lvmconfig(struct cmd_context *cmd, int argc, char **argv)
{
return dumpconfig(cmd, argc, argv);
}