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Diffstat (limited to '')
-rw-r--r-- | src/systemctl/systemctl-mount.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/systemctl/systemctl-mount.c b/src/systemctl/systemctl-mount.c new file mode 100644 index 0000000..d9ad332 --- /dev/null +++ b/src/systemctl/systemctl-mount.c @@ -0,0 +1,116 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include "bus-error.h" +#include "bus-locator.h" +#include "dissect-image.h" +#include "systemctl-mount.h" +#include "systemctl-util.h" +#include "systemctl.h" + +int verb_bind(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_free_ char *n = NULL; + sd_bus *bus; + int r; + + r = acquire_bus(BUS_MANAGER, &bus); + if (r < 0) + return r; + + polkit_agent_open_maybe(); + + r = unit_name_mangle(argv[1], arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &n); + if (r < 0) + return log_error_errno(r, "Failed to mangle unit name: %m"); + + r = bus_call_method( + bus, + bus_systemd_mgr, + "BindMountUnit", + &error, + NULL, + "sssbb", + n, + argv[2], + argv[3], + arg_read_only, + arg_mkdir); + if (r < 0) + return log_error_errno(r, "Failed to bind mount: %s", bus_error_message(&error, r)); + + return 0; +} + +int verb_mount_image(int argc, char *argv[], void *userdata) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + const char *unit = argv[1], *src = argv[2], *dest = argv[3]; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL; + _cleanup_free_ char *n = NULL; + sd_bus *bus; + int r; + + r = acquire_bus(BUS_MANAGER, &bus); + if (r < 0) + return r; + + polkit_agent_open_maybe(); + + r = unit_name_mangle(unit, arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN, &n); + if (r < 0) + return log_error_errno(r, "Failed to mangle unit name: %m"); + + r = bus_message_new_method_call( + bus, + &m, + bus_systemd_mgr, + "MountImageUnit"); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_append( + m, + "sssbb", + n, + src, + dest, + arg_read_only, + arg_mkdir); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_message_open_container(m, 'a', "(ss)"); + if (r < 0) + return bus_log_create_error(r); + + if (argc > 4) { + _cleanup_free_ char *partition = NULL, *mount_options = NULL; + const char *options = argv[4]; + + r = extract_many_words(&options, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL); + if (r < 0) + return r; + /* Single set of options, applying to the root partition/single filesystem */ + if (r == 1) { + r = sd_bus_message_append(m, "(ss)", "root", partition); + if (r < 0) + return bus_log_create_error(r); + } else if (r > 1) { + if (partition_designator_from_string(partition) < 0) + return bus_log_create_error(-EINVAL); + + r = sd_bus_message_append(m, "(ss)", partition, mount_options); + if (r < 0) + return bus_log_create_error(r); + } + } + + r = sd_bus_message_close_container(m); + if (r < 0) + return bus_log_create_error(r); + + r = sd_bus_call(bus, m, -1, &error, NULL); + if (r < 0) + return log_error_errno(r, "Failed to mount image: %s", bus_error_message(&error, r)); + + return 0; +} |