./move.sh

1 files changed, 0 insertions, 757 deletions

diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
deleted file mode 100644
index 9927621ea0..0000000000
--- a/src/cryptsetup/cryptsetup.c
+++ /dev/null
@@ -1,757 +0,0 @@
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <libcryptsetup.h>
-#include <mntent.h>
-#include <string.h>
-#include <sys/mman.h>
-
-#include "sd-device.h"
-
-#include "alloc-util.h"
-#include "ask-password-api.h"
-#include "device-util.h"
-#include "escape.h"
-#include "fileio.h"
-#include "log.h"
-#include "mount-util.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "string-util.h"
-#include "strv.h"
-#include "util.h"
-
-static const char *arg_type = NULL; /* CRYPT_LUKS1, CRYPT_TCRYPT or CRYPT_PLAIN */
-static char *arg_cipher = NULL;
-static unsigned arg_key_size = 0;
-static int arg_key_slot = CRYPT_ANY_SLOT;
-static unsigned arg_keyfile_size = 0;
-static unsigned arg_keyfile_offset = 0;
-static char *arg_hash = NULL;
-static char *arg_header = NULL;
-static unsigned arg_tries = 3;
-static bool arg_readonly = false;
-static bool arg_verify = false;
-static bool arg_discards = false;
-static bool arg_tcrypt_hidden = false;
-static bool arg_tcrypt_system = false;
-static char **arg_tcrypt_keyfiles = NULL;
-static uint64_t arg_offset = 0;
-static uint64_t arg_skip = 0;
-static usec_t arg_timeout = 0;
-
-/* Options Debian's crypttab knows we don't:
-
-    precheck=
-    check=
-    checkargs=
-    noearly=
-    loud=
-    keyscript=
-*/
-
-static int parse_one_option(const char *option) {
-        assert(option);
-
-        /* Handled outside of this tool */
-        if (STR_IN_SET(option, "noauto", "auto", "nofail", "fail"))
-                return 0;
-
-        if (startswith(option, "cipher=")) {
-                char *t;
-
-                t = strdup(option+7);
-                if (!t)
-                        return log_oom();
-
-                free(arg_cipher);
-                arg_cipher = t;
-
-        } else if (startswith(option, "size=")) {
-
-                if (safe_atou(option+5, &arg_key_size) < 0) {
-                        log_error("size= parse failure, ignoring.");
-                        return 0;
-                }
-
-                if (arg_key_size % 8) {
-                        log_error("size= not a multiple of 8, ignoring.");
-                        return 0;
-                }
-
-                arg_key_size /= 8;
-
-        } else if (startswith(option, "key-slot=")) {
-
-                arg_type = CRYPT_LUKS1;
-                if (safe_atoi(option+9, &arg_key_slot) < 0) {
-                        log_error("key-slot= parse failure, ignoring.");
-                        return 0;
-                }
-
-        } else if (startswith(option, "tcrypt-keyfile=")) {
-
-                arg_type = CRYPT_TCRYPT;
-                if (path_is_absolute(option+15)) {
-                        if (strv_extend(&arg_tcrypt_keyfiles, option + 15) < 0)
-                                return log_oom();
-                } else
-                        log_error("Key file path '%s' is not absolute. Ignoring.", option+15);
-
-        } else if (startswith(option, "keyfile-size=")) {
-
-                if (safe_atou(option+13, &arg_keyfile_size) < 0) {
-                        log_error("keyfile-size= parse failure, ignoring.");
-                        return 0;
-                }
-
-        } else if (startswith(option, "keyfile-offset=")) {
-
-                if (safe_atou(option+15, &arg_keyfile_offset) < 0) {
-                        log_error("keyfile-offset= parse failure, ignoring.");
-                        return 0;
-                }
-
-        } else if (startswith(option, "hash=")) {
-                char *t;
-
-                t = strdup(option+5);
-                if (!t)
-                        return log_oom();
-
-                free(arg_hash);
-                arg_hash = t;
-
-        } else if (startswith(option, "header=")) {
-                arg_type = CRYPT_LUKS1;
-
-                if (!path_is_absolute(option+7)) {
-                        log_error("Header path '%s' is not absolute, refusing.", option+7);
-                        return -EINVAL;
-                }
-
-                if (arg_header) {
-                        log_error("Duplicate header= options, refusing.");
-                        return -EINVAL;
-                }
-
-                arg_header = strdup(option+7);
-                if (!arg_header)
-                        return log_oom();
-
-        } else if (startswith(option, "tries=")) {
-
-                if (safe_atou(option+6, &arg_tries) < 0) {
-                        log_error("tries= parse failure, ignoring.");
-                        return 0;
-                }
-
-        } else if (STR_IN_SET(option, "readonly", "read-only"))
-                arg_readonly = true;
-        else if (streq(option, "verify"))
-                arg_verify = true;
-        else if (STR_IN_SET(option, "allow-discards", "discard"))
-                arg_discards = true;
-        else if (streq(option, "luks"))
-                arg_type = CRYPT_LUKS1;
-        else if (streq(option, "tcrypt"))
-                arg_type = CRYPT_TCRYPT;
-        else if (streq(option, "tcrypt-hidden")) {
-                arg_type = CRYPT_TCRYPT;
-                arg_tcrypt_hidden = true;
-        } else if (streq(option, "tcrypt-system")) {
-                arg_type = CRYPT_TCRYPT;
-                arg_tcrypt_system = true;
-        } else if (STR_IN_SET(option, "plain", "swap", "tmp"))
-                arg_type = CRYPT_PLAIN;
-        else if (startswith(option, "timeout=")) {
-
-                if (parse_sec(option+8, &arg_timeout) < 0) {
-                        log_error("timeout= parse failure, ignoring.");
-                        return 0;
-                }
-
-        } else if (startswith(option, "offset=")) {
-
-                if (safe_atou64(option+7, &arg_offset) < 0) {
-                        log_error("offset= parse failure, refusing.");
-                        return -EINVAL;
-                }
-
-        } else if (startswith(option, "skip=")) {
-
-                if (safe_atou64(option+5, &arg_skip) < 0) {
-                        log_error("skip= parse failure, refusing.");
-                        return -EINVAL;
-                }
-
-        } else if (!streq(option, "none"))
-                log_error("Encountered unknown /etc/crypttab option '%s', ignoring.", option);
-
-        return 0;
-}
-
-static int parse_options(const char *options) {
-        const char *word, *state;
-        size_t l;
-        int r;
-
-        assert(options);
-
-        FOREACH_WORD_SEPARATOR(word, l, options, ",", state) {
-                _cleanup_free_ char *o;
-
-                o = strndup(word, l);
-                if (!o)
-                        return -ENOMEM;
-                r = parse_one_option(o);
-                if (r < 0)
-                        return r;
-        }
-
-        /* sanity-check options */
-        if (arg_type != NULL && !streq(arg_type, CRYPT_PLAIN)) {
-                if (arg_offset)
-                      log_warning("offset= ignored with type %s", arg_type);
-                if (arg_skip)
-                      log_warning("skip= ignored with type %s", arg_type);
-        }
-
-        return 0;
-}
-
-static void log_glue(int level, const char *msg, void *usrptr) {
-        log_debug("%s", msg);
-}
-
-static int disk_major_minor(const char *path, char **ret) {
-        struct stat st;
-
-        assert(path);
-
-        if (stat(path, &st) < 0)
-                return -errno;
-
-        if (!S_ISBLK(st.st_mode))
-                return -EINVAL;
-
-        if (asprintf(ret, "/dev/block/%d:%d", major(st.st_rdev), minor(st.st_rdev)) < 0)
-                return -errno;
-
-        return 0;
-}
-
-static char* disk_description(const char *path) {
-
-        static const char name_fields[] =
-                "ID_PART_ENTRY_NAME\0"
-                "DM_NAME\0"
-                "ID_MODEL_FROM_DATABASE\0"
-                "ID_MODEL\0";
-
-        _cleanup_(sd_device_unrefp) sd_device *device = NULL;
-        struct stat st;
-        const char *i;
-        int r;
-
-        assert(path);
-
-        if (stat(path, &st) < 0)
-                return NULL;
-
-        if (!S_ISBLK(st.st_mode))
-                return NULL;
-
-        r = sd_device_new_from_devnum(&device, 'b', st.st_rdev);
-        if (r < 0)
-                return NULL;
-
-        NULSTR_FOREACH(i, name_fields) {
-                const char *name;
-
-                r = sd_device_get_property_value(device, i, &name);
-                if (r >= 0 && !isempty(name))
-                        return strdup(name);
-        }
-
-        return NULL;
-}
-
-static char *disk_mount_point(const char *label) {
-        _cleanup_free_ char *device = NULL;
-        _cleanup_endmntent_ FILE *f = NULL;
-        struct mntent *m;
-
-        /* Yeah, we don't support native systemd unit files here for now */
-
-        if (asprintf(&device, "/dev/mapper/%s", label) < 0)
-                return NULL;
-
-        f = setmntent("/etc/fstab", "r");
-        if (!f)
-                return NULL;
-
-        while ((m = getmntent(f)))
-                if (path_equal(m->mnt_fsname, device))
-                        return strdup(m->mnt_dir);
-
-        return NULL;
-}
-
-static int get_password(const char *vol, const char *src, usec_t until, bool accept_cached, char ***ret) {
-        _cleanup_free_ char *description = NULL, *name_buffer = NULL, *mount_point = NULL, *maj_min = NULL, *text = NULL, *escaped_name = NULL;
-        _cleanup_strv_free_erase_ char **passwords = NULL;
-        const char *name = NULL;
-        char **p, *id;
-        int r = 0;
-
-        assert(vol);
-        assert(src);
-        assert(ret);
-
-        description = disk_description(src);
-        mount_point = disk_mount_point(vol);
-
-        if (description && streq(vol, description))
-                /* If the description string is simply the
-                 * volume name, then let's not show this
-                 * twice */
-                description = mfree(description);
-
-        if (mount_point && description)
-                r = asprintf(&name_buffer, "%s (%s) on %s", description, vol, mount_point);
-        else if (mount_point)
-                r = asprintf(&name_buffer, "%s on %s", vol, mount_point);
-        else if (description)
-                r = asprintf(&name_buffer, "%s (%s)", description, vol);
-
-        if (r < 0)
-                return log_oom();
-
-        name = name_buffer ? name_buffer : vol;
-
-        if (asprintf(&text, "Please enter passphrase for disk %s!", name) < 0)
-                return log_oom();
-
-        if (src)
-                (void) disk_major_minor(src, &maj_min);
-
-        if (maj_min) {
-                escaped_name = maj_min;
-                maj_min = NULL;
-        } else
-                escaped_name = cescape(name);
-
-        if (!escaped_name)
-                return log_oom();
-
-        id = strjoina("cryptsetup:", escaped_name);
-
-        r = ask_password_auto(text, "drive-harddisk", id, "cryptsetup", until,
-                              ASK_PASSWORD_PUSH_CACHE | (accept_cached*ASK_PASSWORD_ACCEPT_CACHED),
-                              &passwords);
-        if (r < 0)
-                return log_error_errno(r, "Failed to query password: %m");
-
-        if (arg_verify) {
-                _cleanup_strv_free_erase_ char **passwords2 = NULL;
-
-                assert(strv_length(passwords) == 1);
-
-                if (asprintf(&text, "Please enter passphrase for disk %s! (verification)", name) < 0)
-                        return log_oom();
-
-                id = strjoina("cryptsetup-verification:", escaped_name);
-
-                r = ask_password_auto(text, "drive-harddisk", id, "cryptsetup", until, ASK_PASSWORD_PUSH_CACHE, &passwords2);
-                if (r < 0)
-                        return log_error_errno(r, "Failed to query verification password: %m");
-
-                assert(strv_length(passwords2) == 1);
-
-                if (!streq(passwords[0], passwords2[0])) {
-                        log_warning("Passwords did not match, retrying.");
-                        return -EAGAIN;
-                }
-        }
-
-        strv_uniq(passwords);
-
-        STRV_FOREACH(p, passwords) {
-                char *c;
-
-                if (strlen(*p)+1 >= arg_key_size)
-                        continue;
-
-                /* Pad password if necessary */
-                c = new(char, arg_key_size);
-                if (!c)
-                        return log_oom();
-
-                strncpy(c, *p, arg_key_size);
-                free(*p);
-                *p = c;
-        }
-
-        *ret = passwords;
-        passwords = NULL;
-
-        return 0;
-}
-
-static int attach_tcrypt(
-                struct crypt_device *cd,
-                const char *name,
-                const char *key_file,
-                char **passwords,
-                uint32_t flags) {
-
-        int r = 0;
-        _cleanup_free_ char *passphrase = NULL;
-        struct crypt_params_tcrypt params = {
-                .flags = CRYPT_TCRYPT_LEGACY_MODES,
-                .keyfiles = (const char **)arg_tcrypt_keyfiles,
-                .keyfiles_count = strv_length(arg_tcrypt_keyfiles)
-        };
-
-        assert(cd);
-        assert(name);
-        assert(key_file || (passwords && passwords[0]));
-
-        if (arg_tcrypt_hidden)
-                params.flags |= CRYPT_TCRYPT_HIDDEN_HEADER;
-
-        if (arg_tcrypt_system)
-                params.flags |= CRYPT_TCRYPT_SYSTEM_HEADER;
-
-        if (key_file) {
-                r = read_one_line_file(key_file, &passphrase);
-                if (r < 0) {
-                        log_error_errno(r, "Failed to read password file '%s': %m", key_file);
-                        return -EAGAIN;
-                }
-
-                params.passphrase = passphrase;
-        } else
-                params.passphrase = passwords[0];
-        params.passphrase_size = strlen(params.passphrase);
-
-        r = crypt_load(cd, CRYPT_TCRYPT, &params);
-        if (r < 0) {
-                if (key_file && r == -EPERM) {
-                        log_error("Failed to activate using password file '%s'.", key_file);
-                        return -EAGAIN;
-                }
-                return r;
-        }
-
-        return crypt_activate_by_volume_key(cd, name, NULL, 0, flags);
-}
-
-static int attach_luks_or_plain(struct crypt_device *cd,
-                                const char *name,
-                                const char *key_file,
-                                const char *data_device,
-                                char **passwords,
-                                uint32_t flags) {
-        int r = 0;
-        bool pass_volume_key = false;
-
-        assert(cd);
-        assert(name);
-        assert(key_file || passwords);
-
-        if (!arg_type || streq(arg_type, CRYPT_LUKS1)) {
-                r = crypt_load(cd, CRYPT_LUKS1, NULL);
-                if (r < 0) {
-                        log_error("crypt_load() failed on device %s.\n", crypt_get_device_name(cd));
-                        return r;
-                }
-
-                if (data_device)
-                        r = crypt_set_data_device(cd, data_device);
-        }
-
-        if ((!arg_type && r < 0) || streq_ptr(arg_type, CRYPT_PLAIN)) {
-                struct crypt_params_plain params = {
-                        .offset = arg_offset,
-                        .skip = arg_skip,
-                };
-                const char *cipher, *cipher_mode;
-                _cleanup_free_ char *truncated_cipher = NULL;
-
-                if (arg_hash) {
-                        /* plain isn't a real hash type. it just means "use no hash" */
-                        if (!streq(arg_hash, "plain"))
-                                params.hash = arg_hash;
-                } else if (!key_file)
-                        /* for CRYPT_PLAIN, the behaviour of cryptsetup
-                         * package is to not hash when a key file is provided */
-                        params.hash = "ripemd160";
-
-                if (arg_cipher) {
-                        size_t l;
-
-                        l = strcspn(arg_cipher, "-");
-                        truncated_cipher = strndup(arg_cipher, l);
-                        if (!truncated_cipher)
-                                return log_oom();
-
-                        cipher = truncated_cipher;
-                        cipher_mode = arg_cipher[l] ? arg_cipher+l+1 : "plain";
-                } else {
-                        cipher = "aes";
-                        cipher_mode = "cbc-essiv:sha256";
-                }
-
-                /* for CRYPT_PLAIN limit reads
-                 * from keyfile to key length, and
-                 * ignore keyfile-size */
-                arg_keyfile_size = arg_key_size;
-
-                /* In contrast to what the name
-                 * crypt_setup() might suggest this
-                 * doesn't actually format anything,
-                 * it just configures encryption
-                 * parameters when used for plain
-                 * mode. */
-                r = crypt_format(cd, CRYPT_PLAIN, cipher, cipher_mode, NULL, NULL, arg_keyfile_size, &params);
-
-                /* hash == NULL implies the user passed "plain" */
-                pass_volume_key = (params.hash == NULL);
-        }
-
-        if (r < 0)
-                return log_error_errno(r, "Loading of cryptographic parameters failed: %m");
-
-        log_info("Set cipher %s, mode %s, key size %i bits for device %s.",
-                 crypt_get_cipher(cd),
-                 crypt_get_cipher_mode(cd),
-                 crypt_get_volume_key_size(cd)*8,
-                 crypt_get_device_name(cd));
-
-        if (key_file) {
-                r = crypt_activate_by_keyfile_offset(cd, name, arg_key_slot, key_file, arg_keyfile_size, arg_keyfile_offset, flags);
-                if (r < 0) {
-                        log_error_errno(r, "Failed to activate with key file '%s': %m", key_file);
-                        return -EAGAIN;
-                }
-        } else {
-                char **p;
-
-                STRV_FOREACH(p, passwords) {
-                        if (pass_volume_key)
-                                r = crypt_activate_by_volume_key(cd, name, *p, arg_key_size, flags);
-                        else
-                                r = crypt_activate_by_passphrase(cd, name, arg_key_slot, *p, strlen(*p), flags);
-
-                        if (r >= 0)
-                                break;
-                }
-        }
-
-        return r;
-}
-
-static int help(void) {
-
-        printf("%s attach VOLUME SOURCEDEVICE [PASSWORD] [OPTIONS]\n"
-               "%s detach VOLUME\n\n"
-               "Attaches or detaches an encrypted block device.\n",
-               program_invocation_short_name,
-               program_invocation_short_name);
-
-        return 0;
-}
-
-int main(int argc, char *argv[]) {
-        int r = EXIT_FAILURE;
-        struct crypt_device *cd = NULL;
-
-        if (argc <= 1) {
-                help();
-                return EXIT_SUCCESS;
-        }
-
-        if (argc < 3) {
-                log_error("This program requires at least two arguments.");
-                return EXIT_FAILURE;
-        }
-
-        log_set_target(LOG_TARGET_AUTO);
-        log_parse_environment();
-        log_open();
-
-        umask(0022);
-
-        if (streq(argv[1], "attach")) {
-                uint32_t flags = 0;
-                int k;
-                unsigned tries;
-                usec_t until;
-                crypt_status_info status;
-                const char *key_file = NULL;
-
-                /* Arguments: systemd-cryptsetup attach VOLUME SOURCE-DEVICE [PASSWORD] [OPTIONS] */
-
-                if (argc < 4) {
-                        log_error("attach requires at least two arguments.");
-                        goto finish;
-                }
-
-                if (argc >= 5 &&
-                    argv[4][0] &&
-                    !streq(argv[4], "-") &&
-                    !streq(argv[4], "none")) {
-
-                        if (!path_is_absolute(argv[4]))
-                                log_error("Password file path '%s' is not absolute. Ignoring.", argv[4]);
-                        else
-                                key_file = argv[4];
-                }
-
-                if (argc >= 6 && argv[5][0] && !streq(argv[5], "-")) {
-                        if (parse_options(argv[5]) < 0)
-                                goto finish;
-                }
-
-                /* A delicious drop of snake oil */
-                mlockall(MCL_FUTURE);
-
-                if (arg_header) {
-                        log_debug("LUKS header: %s", arg_header);
-                        k = crypt_init(&cd, arg_header);
-                } else
-                        k = crypt_init(&cd, argv[3]);
-                if (k) {
-                        log_error_errno(k, "crypt_init() failed: %m");
-                        goto finish;
-                }
-
-                crypt_set_log_callback(cd, log_glue, NULL);
-
-                status = crypt_status(cd, argv[2]);
-                if (status == CRYPT_ACTIVE || status == CRYPT_BUSY) {
-                        log_info("Volume %s already active.", argv[2]);
-                        r = EXIT_SUCCESS;
-                        goto finish;
-                }
-
-                if (arg_readonly)
-                        flags |= CRYPT_ACTIVATE_READONLY;
-
-                if (arg_discards)
-                        flags |= CRYPT_ACTIVATE_ALLOW_DISCARDS;
-
-                if (arg_timeout > 0)
-                        until = now(CLOCK_MONOTONIC) + arg_timeout;
-                else
-                        until = 0;
-
-                arg_key_size = (arg_key_size > 0 ? arg_key_size : (256 / 8));
-
-                if (key_file) {
-                        struct stat st;
-
-                        /* Ideally we'd do this on the open fd, but since this is just a
-                         * warning it's OK to do this in two steps. */
-                        if (stat(key_file, &st) >= 0 && S_ISREG(st.st_mode) && (st.st_mode & 0005))
-                                log_warning("Key file %s is world-readable. This is not a good idea!", key_file);
-                }
-
-                for (tries = 0; arg_tries == 0 || tries < arg_tries; tries++) {
-                        _cleanup_strv_free_erase_ char **passwords = NULL;
-
-                        if (!key_file) {
-                                k = get_password(argv[2], argv[3], until, tries == 0 && !arg_verify, &passwords);
-                                if (k == -EAGAIN)
-                                        continue;
-                                else if (k < 0)
-                                        goto finish;
-                        }
-
-                        if (streq_ptr(arg_type, CRYPT_TCRYPT))
-                                k = attach_tcrypt(cd, argv[2], key_file, passwords, flags);
-                        else
-                                k = attach_luks_or_plain(cd,
-                                                         argv[2],
-                                                         key_file,
-                                                         arg_header ? argv[3] : NULL,
-                                                         passwords,
-                                                         flags);
-                        if (k >= 0)
-                                break;
-                        else if (k == -EAGAIN) {
-                                key_file = NULL;
-                                continue;
-                        } else if (k != -EPERM) {
-                                log_error_errno(k, "Failed to activate: %m");
-                                goto finish;
-                        }
-
-                        log_warning("Invalid passphrase.");
-                }
-
-                if (arg_tries != 0 && tries >= arg_tries) {
-                        log_error("Too many attempts; giving up.");
-                        r = EXIT_FAILURE;
-                        goto finish;
-                }
-
-        } else if (streq(argv[1], "detach")) {
-                int k;
-
-                k = crypt_init_by_name(&cd, argv[2]);
-                if (k == -ENODEV) {
-                        log_info("Volume %s already inactive.", argv[2]);
-                        r = EXIT_SUCCESS;
-                        goto finish;
-                } else if (k) {
-                        log_error_errno(k, "crypt_init_by_name() failed: %m");
-                        goto finish;
-                }
-
-                crypt_set_log_callback(cd, log_glue, NULL);
-
-                k = crypt_deactivate(cd, argv[2]);
-                if (k < 0) {
-                        log_error_errno(k, "Failed to deactivate: %m");
-                        goto finish;
-                }
-
-        } else {
-                log_error("Unknown verb %s.", argv[1]);
-                goto finish;
-        }
-
-        r = EXIT_SUCCESS;
-
-finish:
-
-        if (cd)
-                crypt_free(cd);
-
-        free(arg_cipher);
-        free(arg_hash);
-        free(arg_header);
-        strv_free(arg_tcrypt_keyfiles);
-
-        return r;
-}