diff options
Diffstat (limited to 'src/veritysetup/veritysetup.c')
| -rw-r--r-- | src/veritysetup/veritysetup.c | 113 |
1 files changed, 49 insertions, 64 deletions
diff --git a/src/veritysetup/veritysetup.c b/src/veritysetup/veritysetup.c index 795af77aa6..9c2fe9a1b4 100644 --- a/src/veritysetup/veritysetup.c +++ b/src/veritysetup/veritysetup.c @@ -8,40 +8,50 @@ #include "crypt-util.h" #include "hexdecoct.h" #include "log.h" +#include "main-func.h" +#include "pretty-print.h" #include "string-util.h" +#include "terminal-util.h" static char *arg_root_hash = NULL; static char *arg_data_what = NULL; static char *arg_hash_what = NULL; +STATIC_DESTRUCTOR_REGISTER(arg_root_hash, freep); +STATIC_DESTRUCTOR_REGISTER(arg_data_what, freep); +STATIC_DESTRUCTOR_REGISTER(arg_hash_what, freep); + static int help(void) { + _cleanup_free_ char *link = NULL; + int r; + + r = terminal_urlify_man("systemd-veritysetup@.service", "8", &link); + if (r < 0) + return log_oom(); + printf("%s attach VOLUME DATADEVICE HASHDEVICE ROOTHASH\n" "%s detach VOLUME\n\n" - "Attaches or detaches an integrity protected block device.\n", - program_invocation_short_name, - program_invocation_short_name); + "Attaches or detaches an integrity protected block device.\n" + "\nSee the %s for details.\n" + , program_invocation_short_name + , program_invocation_short_name + , link + ); return 0; } -int main(int argc, char *argv[]) { +static int run(int argc, char *argv[]) { _cleanup_(crypt_freep) struct crypt_device *cd = NULL; int r; - if (argc <= 1) { - r = help(); - goto finish; - } + if (argc <= 1) + return help(); - if (argc < 3) { - log_error("This program requires at least two arguments."); - r = -EINVAL; - goto finish; - } + if (argc < 3) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program requires at least two arguments."); - log_set_target(LOG_TARGET_AUTO); - log_parse_environment(); - log_open(); + log_setup_service(); umask(0022); @@ -50,82 +60,57 @@ int main(int argc, char *argv[]) { crypt_status_info status; size_t l; - if (argc < 6) { - log_error("attach requires at least two arguments."); - r = -EINVAL; - goto finish; - } + if (argc < 6) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "attach requires at least two arguments."); r = unhexmem(argv[5], strlen(argv[5]), &m, &l); - if (r < 0) { - log_error("Failed to parse root hash."); - goto finish; - } + if (r < 0) + return log_error_errno(r, "Failed to parse root hash: %m"); r = crypt_init(&cd, argv[4]); - if (r < 0) { - log_error_errno(r, "Failed to open verity device %s: %m", argv[4]); - goto finish; - } + if (r < 0) + return log_error_errno(r, "Failed to open verity device %s: %m", argv[4]); crypt_set_log_callback(cd, cryptsetup_log_glue, NULL); status = crypt_status(cd, argv[2]); if (IN_SET(status, CRYPT_ACTIVE, CRYPT_BUSY)) { log_info("Volume %s already active.", argv[2]); - r = 0; - goto finish; + return 0; } r = crypt_load(cd, CRYPT_VERITY, NULL); - if (r < 0) { - log_error_errno(r, "Failed to load verity superblock: %m"); - goto finish; - } + if (r < 0) + return log_error_errno(r, "Failed to load verity superblock: %m"); r = crypt_set_data_device(cd, argv[3]); - if (r < 0) { - log_error_errno(r, "Failed to configure data device: %m"); - goto finish; - } + if (r < 0) + return log_error_errno(r, "Failed to configure data device: %m"); r = crypt_activate_by_volume_key(cd, argv[2], m, l, CRYPT_ACTIVATE_READONLY); - if (r < 0) { - log_error_errno(r, "Failed to set up verity device: %m"); - goto finish; - } + if (r < 0) + return log_error_errno(r, "Failed to set up verity device: %m"); } else if (streq(argv[1], "detach")) { r = crypt_init_by_name(&cd, argv[2]); if (r == -ENODEV) { log_info("Volume %s already inactive.", argv[2]); - goto finish; - } else if (r < 0) { - log_error_errno(r, "crypt_init_by_name() failed: %m"); - goto finish; + return 0; } + if (r < 0) + return log_error_errno(r, "crypt_init_by_name() failed: %m"); crypt_set_log_callback(cd, cryptsetup_log_glue, NULL); r = crypt_deactivate(cd, argv[2]); - if (r < 0) { - log_error_errno(r, "Failed to deactivate: %m"); - goto finish; - } - - } else { - log_error("Unknown verb %s.", argv[1]); - r = -EINVAL; - goto finish; - } + if (r < 0) + return log_error_errno(r, "Failed to deactivate: %m"); - r = 0; + } else + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown verb %s.", argv[1]); -finish: - free(arg_root_hash); - free(arg_data_what); - free(arg_hash_what); - - return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; + return 0; } + +DEFINE_MAIN_FUNCTION(run); |