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Add luksHeaderBackup and luksHeaderRestore commands and API cals.

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git-svn-id: https://cryptsetup.googlecode.com/svn/trunk@114 36d66b0a-2a48-0410-832c-cd162a569da5
This commit is contained in:
Milan Broz
2009-09-28 17:45:38 +00:00
parent f51c7b62db
commit e026f089be
8 changed files with 384 additions and 18 deletions
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60
src/cryptsetup.c
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@@ -22,6 +22,7 @@ static char *opt_hash = NULL;
static int opt_verify_passphrase = 0;
static char *opt_key_file = NULL;
static char *opt_master_key_file = NULL;
static char *opt_header_backup_file = NULL;
static unsigned int opt_key_size = 0;
static int opt_key_slot = CRYPT_ANY_SLOT;
static uint64_t opt_size = 0;
@@ -54,6 +55,8 @@ static int action_luksUUID(int arg);
static int action_luksDump(int arg);
static int action_luksSuspend(int arg);
static int action_luksResume(int arg);
static int action_luksBackup(int arg);
static int action_luksRestore(int arg);
static struct action_type {
const char *type;
@@ -81,6 +84,8 @@ static struct action_type {
{ "luksDump", action_luksDump, 0, 1, 0, 0, 1, N_("<device>"), N_("dump LUKS partition information") },
{ "luksSuspend",action_luksSuspend, 0, 1, 1, 1, 1, N_("<device>"), N_("Suspend LUKS device and wipe key (all IOs are frozen).") },
{ "luksResume", action_luksResume, 0, 1, 1, 1, 1, N_("<device>"), N_("Resume suspended LUKS device.") },
{ "luksHeaderBackup",action_luksBackup, 0, 1, 1, 1, 1, N_("<device>"), N_("Backup LUKS device header and keyslots") },
{ "luksHeaderRestore",action_luksRestore,0,1, 1, 1, 1, N_("<device>"), N_("Restore LUKS device header and keyslots") },
{ "luksDelKey", action_luksDelKey, 0, 2, 1, 1, 1, N_("<device> <key slot>"), N_("identical to luksKillSlot - DEPRECATED - see man page") },
{ "reload", action_create, 1, 2, 1, 1, 1, N_("<name> <device>"), N_("modify active device - DEPRECATED - see man page") },
{ NULL, NULL, 0, 0, 0, 0, 0, NULL, NULL }
@@ -129,6 +134,16 @@ static struct interface_callbacks cmd_icb = {
.log = cmdLineLog,
};
static void _log(int class, const char *msg, void *usrptr)
{
cmdLineLog(class, (char *)msg);
}
static int _yesDialog(const char *msg, void *usrptr)
{
return yesDialog((char*)msg);
}
/* End ICBs */
static void show_status(int errcode)
@@ -377,6 +392,7 @@ static int action_luksOpen(int arg)
options.flags |= CRYPT_FLAG_READONLY;
if (opt_non_exclusive)
log_err(_("Obsolete option --non-exclusive is ignored.\n"));
return crypt_luksOpen(&options);
}
@@ -529,6 +545,49 @@ out:
return r;
}
static int action_luksBackup(int arg)
{
struct crypt_device *cd = NULL;
int r;
if (!opt_header_backup_file) {
log_err(_("Option --header-bakup-file is required.\n"));
return -EINVAL;
}
if ((r = crypt_init(&cd, action_argv[0])))
goto out;
crypt_set_log_callback(cd, _log, NULL);
crypt_set_confirm_callback(cd, _yesDialog, NULL);
r = crypt_header_backup(cd, CRYPT_LUKS1, opt_header_backup_file);
out:
crypt_free(cd);
return r;
}
static int action_luksRestore(int arg)
{
struct crypt_device *cd = NULL;
int r = 0;
if (!opt_header_backup_file) {
log_err(_("Option --header-bakup-file is required.\n"));
return -EINVAL;
}
if ((r = crypt_init(&cd, action_argv[0])))
goto out;
crypt_set_log_callback(cd, _log, NULL);
crypt_set_confirm_callback(cd, _yesDialog, NULL);
r = crypt_header_restore(cd, CRYPT_LUKS1, opt_header_backup_file);
out:
crypt_free(cd);
return r;
}
static void usage(poptContext popt_context, int exitcode,
const char *error, const char *more)
{
@@ -638,6 +697,7 @@ int main(int argc, char **argv)
{ "tries", 'T', POPT_ARG_INT, &opt_tries, 0, N_("How often the input of the passphrase canbe retried"), NULL },
{ "align-payload", '\0', POPT_ARG_INT, &opt_align_payload, 0, N_("Align payload at <n> sector boundaries - for luksFormat"), N_("SECTORS") },
{ "non-exclusive", '\0', POPT_ARG_NONE, &opt_non_exclusive, 0, N_("Allows non-exclusive access for luksOpen, WARNING see manpage."), NULL },
{ "header-backup-file",'\0', POPT_ARG_STRING, &opt_header_backup_file,0, N_("File with LUKS header and keyslots backup."), NULL },
POPT_TABLEEND
};
poptContext popt_context;