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g13: Implement --umount for dm-crypt.

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* g13/g13.c (main): Implement command --umount.
* g13/mount.c (g13_umount_container): use the syshelper if needed.
* g13/backend.c (be_umount_container): New.
* g13/be-dmcrypt.c (be_dmcrypt_umount_container): New.
* g13/call-syshelp.c (call_syshelp_run_umount): New.
* g13/sh-cmd.c (cmd_umount): New.
(register_commands): Register UMOUNT.
* g13/sh-dmcrypt.c (sh_dmcrypt_umount_container): New.

Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2016-08-14 20:17:51 +02:00
parent c9a0bccc77
commit b781113cf1
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
11 changed files with 245 additions and 23 deletions
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35
g13/sh-cmd.c
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@ -500,6 +500,40 @@ cmd_mount (assuan_context_t ctx, char *line)
}
static const char hlp_umount[] =
"UMOUNT <type>\n"
"\n"
"Unmount an encrypted partition and wipe the key.\n"
"<type> must be \"dm-crypt\" for now.";
static gpg_error_t
cmd_umount (assuan_context_t ctx, char *line)
{
ctrl_t ctrl = assuan_get_pointer (ctx);
gpg_error_t err = 0;
line = skip_options (line);
if (strcmp (line, "dm-crypt"))
{
err = set_error (GPG_ERR_INV_ARG, "Type must be \"dm-crypt\"");
goto leave;
}
if (!ctrl->server_local->devicename
|| !ctrl->server_local->devicefp
|| !ctrl->devti)
{
err = set_error (GPG_ERR_ENOENT, "No device has been set");
goto leave;
}
err = sh_dmcrypt_umount_container (ctrl, ctrl->server_local->devicename);
leave:
return leave_cmd (ctx, err);
}
static const char hlp_suspend[] =
"SUSPEND <type>\n"
"\n"
@ -713,6 +747,7 @@ register_commands (assuan_context_t ctx, int fail_all)
{ "CREATE", cmd_create, hlp_create },
{ "GETKEYBLOB", cmd_getkeyblob, hlp_getkeyblob },
{ "MOUNT", cmd_mount, hlp_mount },
{ "UMOUNT", cmd_umount, hlp_umount },
{ "SUSPEND", cmd_suspend,hlp_suspend},
{ "RESUME", cmd_resume, hlp_resume },
{ "INPUT", NULL },