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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "acconfig.h"
#include "tools/rbd/ArgumentTypes.h"
#include "tools/rbd/Shell.h"
#include <boost/program_options.hpp>
#include "include/ceph_assert.h"
namespace rbd {
namespace action {
namespace at = argument_types;
namespace po = boost::program_options;
#define DECLARE_DEVICE_OPERATIONS(ns) \
namespace ns { \
int execute_list(const po::variables_map &vm, \
const std::vector<std::string> &ceph_global_args); \
int execute_map(const po::variables_map &vm, \
const std::vector<std::string> &ceph_global_args); \
int execute_unmap(const po::variables_map &vm, \
const std::vector<std::string> &ceph_global_args); \
int execute_attach(const po::variables_map &vm, \
const std::vector<std::string> &ceph_global_args); \
int execute_detach(const po::variables_map &vm, \
const std::vector<std::string> &ceph_global_args); \
}
DECLARE_DEVICE_OPERATIONS(ggate);
DECLARE_DEVICE_OPERATIONS(kernel);
DECLARE_DEVICE_OPERATIONS(nbd);
DECLARE_DEVICE_OPERATIONS(wnbd);
namespace device {
namespace {
struct DeviceOperations {
int (*execute_list)(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_args);
int (*execute_map)(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_args);
int (*execute_unmap)(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_args);
int (*execute_attach)(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_args);
int (*execute_detach)(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_args);
};
const DeviceOperations ggate_operations = {
ggate::execute_list,
ggate::execute_map,
ggate::execute_unmap,
ggate::execute_attach,
ggate::execute_detach,
};
const DeviceOperations krbd_operations = {
kernel::execute_list,
kernel::execute_map,
kernel::execute_unmap,
kernel::execute_attach,
kernel::execute_detach,
};
const DeviceOperations nbd_operations = {
nbd::execute_list,
nbd::execute_map,
nbd::execute_unmap,
nbd::execute_attach,
nbd::execute_detach,
};
const DeviceOperations wnbd_operations = {
wnbd::execute_list,
wnbd::execute_map,
wnbd::execute_unmap,
wnbd::execute_attach,
wnbd::execute_detach,
};
enum device_type_t {
DEVICE_TYPE_GGATE,
DEVICE_TYPE_KRBD,
DEVICE_TYPE_NBD,
DEVICE_TYPE_WNBD,
};
struct DeviceType {};
void validate(boost::any& v, const std::vector<std::string>& values,
DeviceType *target_type, int) {
po::validators::check_first_occurrence(v);
const std::string &s = po::validators::get_single_string(values);
#ifdef _WIN32
if (s == "wnbd") {
v = boost::any(DEVICE_TYPE_WNBD);
#else
if (s == "nbd") {
v = boost::any(DEVICE_TYPE_NBD);
} else if (s == "ggate") {
v = boost::any(DEVICE_TYPE_GGATE);
} else if (s == "krbd") {
v = boost::any(DEVICE_TYPE_KRBD);
#endif /* _WIN32 */
} else {
throw po::validation_error(po::validation_error::invalid_option_value);
}
}
void add_device_type_option(po::options_description *options) {
options->add_options()
("device-type,t", po::value<DeviceType>(),
#ifdef _WIN32
"device type [wnbd]");
#else
"device type [ggate, krbd (default), nbd]");
#endif
}
void add_device_specific_options(po::options_description *options) {
options->add_options()
("options,o", po::value<std::vector<std::string>>(),
"device specific options");
}
device_type_t get_device_type(const po::variables_map &vm) {
if (vm.count("device-type")) {
return vm["device-type"].as<device_type_t>();
}
#ifndef _WIN32
return DEVICE_TYPE_KRBD;
#else
return DEVICE_TYPE_WNBD;
#endif
}
const DeviceOperations *get_device_operations(const po::variables_map &vm) {
switch (get_device_type(vm)) {
case DEVICE_TYPE_GGATE:
return &ggate_operations;
case DEVICE_TYPE_KRBD:
return &krbd_operations;
case DEVICE_TYPE_NBD:
return &nbd_operations;
case DEVICE_TYPE_WNBD:
return &wnbd_operations;
default:
ceph_abort();
return nullptr;
}
}
} // anonymous namespace
void get_list_arguments(po::options_description *positional,
po::options_description *options) {
add_device_type_option(options);
at::add_format_options(options);
}
int execute_list(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_init_args) {
return (*get_device_operations(vm)->execute_list)(vm, ceph_global_init_args);
}
void get_map_arguments(po::options_description *positional,
po::options_description *options) {
add_device_type_option(options);
at::add_image_or_snap_spec_options(positional, options,
at::ARGUMENT_MODIFIER_NONE);
options->add_options()
("show-cookie", po::bool_switch(), "show device cookie")
("cookie", po::value<std::string>(), "specify device cookie")
("read-only", po::bool_switch(), "map read-only")
("exclusive", po::bool_switch(), "disable automatic exclusive lock transitions")
("quiesce", po::bool_switch(), "use quiesce hooks")
("quiesce-hook", po::value<std::string>(), "quiesce hook path");
at::add_snap_id_option(options);
add_device_specific_options(options);
}
int execute_map(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_init_args) {
return (*get_device_operations(vm)->execute_map)(vm, ceph_global_init_args);
}
void get_unmap_arguments(po::options_description *positional,
po::options_description *options) {
add_device_type_option(options);
positional->add_options()
("image-or-snap-or-device-spec",
"image, snapshot, or device specification\n"
"[<pool-name>/[<namespace>/]]<image-name>[@<snap-name>] or <device-path>");
at::add_pool_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_namespace_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_image_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_snap_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_snap_id_option(options);
add_device_specific_options(options);
}
int execute_unmap(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_init_args) {
return (*get_device_operations(vm)->execute_unmap)(vm, ceph_global_init_args);
}
void get_attach_arguments(po::options_description *positional,
po::options_description *options) {
add_device_type_option(options);
at::add_image_or_snap_spec_options(positional, options,
at::ARGUMENT_MODIFIER_NONE);
options->add_options()
("device", po::value<std::string>()->required(), "specify device path")
("show-cookie", po::bool_switch(), "show device cookie")
("cookie", po::value<std::string>(), "specify device cookie")
("read-only", po::bool_switch(), "attach read-only")
("force", po::bool_switch(), "force attach")
("exclusive", po::bool_switch(), "disable automatic exclusive lock transitions")
("quiesce", po::bool_switch(), "use quiesce hooks")
("quiesce-hook", po::value<std::string>(), "quiesce hook path");
at::add_snap_id_option(options);
add_device_specific_options(options);
}
int execute_attach(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_init_args) {
return (*get_device_operations(vm)->execute_attach)(vm, ceph_global_init_args);
}
void get_detach_arguments(po::options_description *positional,
po::options_description *options) {
add_device_type_option(options);
positional->add_options()
("image-or-snap-or-device-spec",
"image, snapshot, or device specification\n"
"[<pool-name>/[<namespace>/]]<image-name>[@<snap-name>] or <device-path>");
at::add_pool_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_namespace_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_image_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_snap_option(options, at::ARGUMENT_MODIFIER_NONE);
at::add_snap_id_option(options);
add_device_specific_options(options);
}
int execute_detach(const po::variables_map &vm,
const std::vector<std::string> &ceph_global_init_args) {
return (*get_device_operations(vm)->execute_detach)(vm, ceph_global_init_args);
}
Shell::SwitchArguments switched_arguments({"exclusive", "force", "quiesce",
"read-only", "show-cookie"});
Shell::Action action_list(
{"device", "list"}, {"showmapped"}, "List mapped rbd images.", "",
&get_list_arguments, &execute_list);
// yet another alias for list command
Shell::Action action_ls(
{"device", "ls"}, {}, "List mapped rbd images.", "",
&get_list_arguments, &execute_list, false);
Shell::Action action_map(
{"device", "map"}, {"map"}, "Map an image to a block device.", "",
&get_map_arguments, &execute_map);
Shell::Action action_unmap(
{"device", "unmap"}, {"unmap"}, "Unmap a rbd device.", "",
&get_unmap_arguments, &execute_unmap);
Shell::Action action_attach(
{"device", "attach"}, {}, "Attach image to device.", "",
&get_attach_arguments, &execute_attach);
Shell::Action action_detach(
{"device", "detach"}, {}, "Detach image from device.", "",
&get_detach_arguments, &execute_detach);
} // namespace device
} // namespace action
} // namespace rbd
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