diff options
Diffstat (limited to 'src/tools/rbd/action/Wnbd.cc')
| -rw-r--r-- | src/tools/rbd/action/Wnbd.cc | 172 |
1 files changed, 172 insertions, 0 deletions
diff --git a/src/tools/rbd/action/Wnbd.cc b/src/tools/rbd/action/Wnbd.cc new file mode 100644 index 000000000..85d2c7057 --- /dev/null +++ b/src/tools/rbd/action/Wnbd.cc @@ -0,0 +1,172 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +// vim: ts=8 sw=2 smarttab + +#include "tools/rbd/ArgumentTypes.h" +#include "tools/rbd/Shell.h" +#include "tools/rbd/Utils.h" +#include "include/stringify.h" +#include "common/SubProcess.h" +#include <iostream> +#include <boost/algorithm/string.hpp> +#include <boost/algorithm/string/predicate.hpp> +#include <boost/program_options.hpp> + +namespace rbd { +namespace action { +namespace wnbd { + +namespace at = argument_types; +namespace po = boost::program_options; + +#if defined(_WIN32) +static int call_wnbd_cmd(const po::variables_map &vm, + const std::vector<std::string> &args, + const std::vector<std::string> &ceph_global_init_args) { + char exe_path[PATH_MAX]; + ssize_t exe_path_bytes = get_self_exe_path(exe_path, PATH_MAX); + + if (exe_path_bytes > 4) { + // Drop .exe suffix as we're going to add the "-wnbd" suffix. + exe_path[strlen(exe_path) - 4] = '\0'; + exe_path_bytes -= 4; + } + + if (exe_path_bytes < 0) { + strcpy(exe_path, "rbd-wnbd"); + } else { + if (snprintf(exe_path + exe_path_bytes, + sizeof(exe_path) - exe_path_bytes, + "-wnbd") < 0) { + return -EOVERFLOW; + } + } + + SubProcess process(exe_path, SubProcess::KEEP, SubProcess::KEEP, SubProcess::KEEP); + + for (auto &arg : ceph_global_init_args) { + process.add_cmd_arg(arg.c_str()); + } + + for (auto &arg : args) { + process.add_cmd_arg(arg.c_str()); + } + + if (process.spawn()) { + std::cerr << "rbd: failed to run rbd-wnbd: " << process.err() << std::endl; + return -EINVAL; + } + int exit_code = process.join(); + if (exit_code) { + std::cerr << "rbd: rbd-wnbd failed with error: " << process.err() << std::endl; + return exit_code; + } + + return 0; +} +#endif + +int execute_list(const po::variables_map &vm, + const std::vector<std::string> &ceph_global_init_args) { +#if !defined(_WIN32) + std::cerr << "rbd: wnbd is only supported on Windows" << std::endl; + return -EOPNOTSUPP; +#else + std::vector<std::string> args; + + args.push_back("list"); + + if (vm.count("format")) { + args.push_back("--format"); + args.push_back(vm["format"].as<at::Format>().value); + } + if (vm["pretty-format"].as<bool>()) { + args.push_back("--pretty-format"); + } + + return call_wnbd_cmd(vm, args, ceph_global_init_args); +#endif +} + +int execute_map(const po::variables_map &vm, + const std::vector<std::string> &ceph_global_init_args) { +#if !defined(_WIN32) + std::cerr << "rbd: wnbd is only supported on Windows" << std::endl; + return -EOPNOTSUPP; +#else + std::vector<std::string> args; + + args.push_back("map"); + std::string img; + int r = utils::get_image_or_snap_spec(vm, &img); + if (r < 0) { + return r; + } + args.push_back(img); + + if (vm["read-only"].as<bool>()) { + args.push_back("--read-only"); + } + + if (vm["exclusive"].as<bool>()) { + args.push_back("--exclusive"); + } + + if (vm.count("options")) { + utils::append_options_as_args(vm["options"].as<std::vector<std::string>>(), + &args); + } + + return call_wnbd_cmd(vm, args, ceph_global_init_args); +#endif +} + +int execute_unmap(const po::variables_map &vm, + const std::vector<std::string> &ceph_global_init_args) { +#if !defined(_WIN32) + std::cerr << "rbd: wnbd is only supported on Windows" << std::endl; + return -EOPNOTSUPP; +#else + std::string image_name; + + int r = utils::get_image_or_snap_spec(vm, &image_name); + if (r < 0) { + return r; + } + + std::vector<std::string> args; + + args.push_back("unmap"); + args.push_back(image_name); + + if (vm.count("options")) { + utils::append_options_as_args(vm["options"].as<std::vector<std::string>>(), + &args); + } + + return call_wnbd_cmd(vm, args, ceph_global_init_args); +#endif +} + +int execute_attach(const po::variables_map &vm, + const std::vector<std::string> &ceph_global_init_args) { +#if !defined(_WIN32) + std::cerr << "rbd: wnbd is only supported on Windows" << std::endl; +#else + std::cerr << "rbd: wnbd attach command not supported" << std::endl; +#endif + return -EOPNOTSUPP; +} + +int execute_detach(const po::variables_map &vm, + const std::vector<std::string> &ceph_global_init_args) { +#if !defined(_WIN32) + std::cerr << "rbd: wnbd is only supported on Windows" << std::endl; +#else + std::cerr << "rbd: wnbd detach command not supported" << std::endl; +#endif + return -EOPNOTSUPP; +} + +} // namespace wnbd +} // namespace action +} // namespace rbd |