Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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