Merge pull request #20436 from fbuihuu/add-no-build-support-on-opensuse

Add no build support on opensuse

meson.build

@@ -1787,6 +1787,34 @@ if conf.get('HAVE_LIBCRYPTSETUP_PLUGINS') == 1
                         install : true,
                         install_dir : libcryptsetup_plugins_dir)
         endif
+
+        if conf.get('HAVE_LIBFIDO2') == 1
+                cryptsetup_token_systemd_fido2 = shared_library(
+                        'cryptsetup-token-systemd-fido2',
+                        link_args : ['-shared',
+                                     '-Wl,--version-script=' + cryptsetup_token_sym_path],
+                        dependencies : libshared_deps + [libcryptsetup, versiondep],
+                        link_with : [libshared],
+                        link_whole : [cryptsetup_token_systemd_fido2_static],
+                        link_depends : cryptsetup_token_sym,
+                        install_rpath : rootlibexecdir,
+                        install : true,
+                        install_dir : libcryptsetup_plugins_dir)
+        endif
+
+        if conf.get('HAVE_P11KIT') == 1
+                cryptsetup_token_systemd_pkcs11 = shared_library(
+                        'cryptsetup-token-systemd-pkcs11',
+                        link_args : ['-shared',
+                                     '-Wl,--version-script=' + cryptsetup_token_sym_path],
+                        dependencies : libshared_deps + [libcryptsetup, versiondep],
+                        link_with : [libshared],
+                        link_whole : [cryptsetup_token_systemd_pkcs11_static],
+                        link_depends : cryptsetup_token_sym,
+                        install_rpath : rootlibexecdir,
+                        install : true,
+                        install_dir : libcryptsetup_plugins_dir)
+        endif
 endif
 
 ############################################################

src/basic/fd-util.c

@@ -433,11 +433,9 @@ bool fdname_is_valid(const char *s) {
 }
 
 int fd_get_path(int fd, char **ret) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         int r;
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        r = readlink_malloc(FORMAT_PROC_FD_PATH(fd), ret);
-        r = readlink_malloc(procfs_path, ret);
         if (r == -ENOENT) {
                 /* ENOENT can mean two things: that the fd does not exist or that /proc is not mounted. Let's make
                  * things debuggable and distinguish the two. */
@@ -647,7 +645,6 @@ finish:
 }
 
 int fd_reopen(int fd, int flags) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         int new_fd;
 
         /* Reopens the specified fd with new flags. This is useful for convert an O_PATH fd into a regular one, or to
@@ -657,8 +654,7 @@ int fd_reopen(int fd, int flags) {
          *
          * This implicitly resets the file read index to 0. */
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        new_fd = open(FORMAT_PROC_FD_PATH(fd), flags);
-        new_fd = open(procfs_path, flags);
         if (new_fd < 0) {
                 if (errno != ENOENT)
                         return -errno;

src/basic/fd-util.h

@@ -7,6 +7,7 @@
 #include <sys/socket.h>
 
 #include "macro.h"
+#include "stdio-util.h"
 
 /* maximum length of fdname */
 #define FDNAME_MAX 255
@@ -104,7 +105,20 @@ static inline int make_null_stdio(void) {
                 0;                              \
         })
 
-
 int fd_reopen(int fd, int flags);
 int read_nr_open(void);
 int btrfs_defrag_fd(int fd);
+
+/* The maximum length a buffer for a /proc/self/fd/<fd> path needs */
+#define PROC_FD_PATH_MAX \
+        (STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int))
+
+static inline char *format_proc_fd_path(char buf[static PROC_FD_PATH_MAX], int fd) {
+        assert(buf);
+        assert(fd >= 0);
+        assert_se(snprintf_ok(buf, PROC_FD_PATH_MAX, "/proc/self/fd/%i", fd));
+        return buf;
+}
+
+#define FORMAT_PROC_FD_PATH(fd) \
+        format_proc_fd_path((char[PROC_FD_PATH_MAX]) {}, (fd))

src/basic/fileio.c

@@ -721,8 +721,6 @@ int read_full_file_full(
                 if (dir_fd == AT_FDCWD)
                         r = sockaddr_un_set_path(&sa.un, filename);
                 else {
-                        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
-
                         /* If we shall operate relative to some directory, then let's use O_PATH first to
                          * open the socket inode, and then connect to it via /proc/self/fd/. We have to do
                          * this since there's not connectat() that takes a directory fd as first arg. */
@@ -731,8 +729,7 @@ int read_full_file_full(
                         if (dfd < 0)
                                 return -errno;
 
-                        xsprintf(procfs_path, "/proc/self/fd/%i", dfd);
+                        r = sockaddr_un_set_path(&sa.un, FORMAT_PROC_FD_PATH(dfd));
-                        r = sockaddr_un_set_path(&sa.un, procfs_path);
                 }
                 if (r < 0)
                         return r;

src/basic/fs-util.c

@@ -308,14 +308,11 @@ int fchmod_umask(int fd, mode_t m) {
 }
 
 int fchmod_opath(int fd, mode_t m) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
-
         /* This function operates also on fd that might have been opened with
          * O_PATH. Indeed fchmodat() doesn't have the AT_EMPTY_PATH flag like
          * fchownat() does. */
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        if (chmod(FORMAT_PROC_FD_PATH(fd), m) < 0) {
-        if (chmod(procfs_path, m) < 0) {
                 if (errno != ENOENT)
                         return -errno;
 
@@ -329,12 +326,9 @@ int fchmod_opath(int fd, mode_t m) {
 }
 
 int futimens_opath(int fd, const struct timespec ts[2]) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
-
         /* Similar to fchmod_path() but for futimens() */
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        if (utimensat(AT_FDCWD, FORMAT_PROC_FD_PATH(fd), ts, 0) < 0) {
-        if (utimensat(AT_FDCWD, procfs_path, ts, 0) < 0) {
                 if (errno != ENOENT)
                         return -errno;
 
@@ -380,7 +374,6 @@ int fd_warn_permissions(const char *path, int fd) {
 }
 
 int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gid, mode_t mode) {
-        char fdpath[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         _cleanup_close_ int fd = -1;
         int r, ret = 0;
 
@@ -412,8 +405,6 @@ int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gi
         /* Let's make a path from the fd, and operate on that. With this logic, we can adjust the access mode,
          * ownership and time of the file node in all cases, even if the fd refers to an O_PATH object — which is
          * something fchown(), fchmod(), futimensat() don't allow. */
-        xsprintf(fdpath, "/proc/self/fd/%i", fd);
-
         ret = fchmod_and_chown(fd, mode, uid, gid);
 
         if (stamp != USEC_INFINITY) {
@@ -421,9 +412,9 @@ int touch_file(const char *path, bool parents, usec_t stamp, uid_t uid, gid_t gi
 
                 timespec_store(&ts[0], stamp);
                 ts[1] = ts[0];
-                r = utimensat(AT_FDCWD, fdpath, ts, 0);
+                r = utimensat(AT_FDCWD, FORMAT_PROC_FD_PATH(fd), ts, 0);
         } else
-                r = utimensat(AT_FDCWD, fdpath, NULL, 0);
+                r = utimensat(AT_FDCWD, FORMAT_PROC_FD_PATH(fd), NULL, 0);
         if (r < 0 && ret >= 0)
                 return -errno;
 
@@ -703,13 +694,10 @@ int unlink_or_warn(const char *filename) {
 }
 
 int inotify_add_watch_fd(int fd, int what, uint32_t mask) {
-        char path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
         int wd;
 
         /* This is like inotify_add_watch(), except that the file to watch is not referenced by a path, but by an fd */
-        xsprintf(path, "/proc/self/fd/%i", what);
+        wd = inotify_add_watch(fd, FORMAT_PROC_FD_PATH(what), mask);
-
-        wd = inotify_add_watch(fd, path, mask);
         if (wd < 0)
                 return -errno;
 
@@ -1156,7 +1144,6 @@ int chase_symlinks_and_opendir(
                 char **ret_path,
                 DIR **ret_dir) {
 
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         _cleanup_close_ int path_fd = -1;
         _cleanup_free_ char *p = NULL;
         DIR *d;
@@ -1182,8 +1169,7 @@ int chase_symlinks_and_opendir(
                 return r;
         assert(path_fd >= 0);
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", path_fd);
+        d = opendir(FORMAT_PROC_FD_PATH(path_fd));
-        d = opendir(procfs_path);
         if (!d)
                 return -errno;
 
@@ -1237,12 +1223,9 @@ int chase_symlinks_and_stat(
 }
 
 int access_fd(int fd, int mode) {
-        char p[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(fd) + 1];
-
         /* Like access() but operates on an already open fd */
 
-        xsprintf(p, "/proc/self/fd/%i", fd);
+        if (access(FORMAT_PROC_FD_PATH(fd), mode) < 0) {
-        if (access(p, mode) < 0) {
                 if (errno != ENOENT)
                         return -errno;
 

src/basic/namespace-util.c

@@ -89,9 +89,7 @@ int namespace_enter(int pidns_fd, int mntns_fd, int netns_fd, int userns_fd, int
                 /* Can't setns to your own userns, since then you could escalate from non-root to root in
                  * your own namespace, so check if namespaces are equal before attempting to enter. */
 
-                char userns_fd_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
+                r = files_same(FORMAT_PROC_FD_PATH(userns_fd), "/proc/self/ns/user", 0);
-                xsprintf(userns_fd_path, "/proc/self/fd/%d", userns_fd);
-                r = files_same(userns_fd_path, "/proc/self/ns/user", 0);
                 if (r < 0)
                         return r;
                 if (r)

src/basic/stdio-util.h

@@ -9,8 +9,13 @@
 #include "macro.h"
 #include "memory-util.h"
 
-#define snprintf_ok(buf, len, fmt, ...) \
+#define snprintf_ok(buf, len, fmt, ...)                                \
-        ((size_t) snprintf(buf, len, fmt, __VA_ARGS__) < (len))
+        ({                                                             \
+                char *_buf = (buf);                                    \
+                size_t _len = (len);                                   \
+                int _snpf = snprintf(_buf, _len, (fmt), __VA_ARGS__);  \
+                _snpf >= 0 && (size_t) _snpf < _len ? _buf : NULL;     \
+        })
 
 #define xsprintf(buf, fmt, ...) \
         assert_message_se(snprintf_ok(buf, ELEMENTSOF(buf), fmt, __VA_ARGS__), "xsprintf: " #buf "[] must be big enough")

src/basic/tmpfile-util.c

@@ -300,11 +300,7 @@ int link_tmpfile(int fd, const char *path, const char *target) {
                 if (r < 0)
                         return r;
         } else {
-                char proc_fd_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(fd) + 1];
+                if (linkat(AT_FDCWD, FORMAT_PROC_FD_PATH(fd), AT_FDCWD, target, AT_SYMLINK_FOLLOW) < 0)
-
-                xsprintf(proc_fd_path, "/proc/self/fd/%i", fd);
-
-                if (linkat(AT_FDCWD, proc_fd_path, AT_FDCWD, target, AT_SYMLINK_FOLLOW) < 0)
                         return -errno;
         }
 

src/basic/xattr-util.c

@@ -108,11 +108,10 @@ static int getxattrat_fake_prepare(
                 int dirfd,
                 const char *filename,
                 int flags,
-                char ret_fn[static STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1],
+                char ret_fn[static PROC_FD_PATH_MAX],
                 int *ret_fd) {
 
         _cleanup_close_ int fd = -1;
-
         assert(ret_fn);
         assert(ret_fd);
 
@@ -125,13 +124,15 @@ static int getxattrat_fake_prepare(
                 if (!(flags & AT_EMPTY_PATH))
                         return -EINVAL;
 
-                snprintf(ret_fn, STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1, "/proc/self/fd/%i", dirfd);
+                assert(dirfd >= 0);
+
+                format_proc_fd_path(ret_fn, dirfd);
         } else {
                 fd = openat(dirfd, filename, O_CLOEXEC|O_PATH|(flags & AT_SYMLINK_NOFOLLOW ? O_NOFOLLOW : 0));
                 if (fd < 0)
                         return -errno;
 
-                snprintf(ret_fn, STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1, "/proc/self/fd/%i", fd);
+                format_proc_fd_path(ret_fn, fd);
         }
 
         /* Pass the FD to the caller, since in case we do openat() the filename depends on it. */
@@ -148,8 +149,8 @@ int fgetxattrat_fake(
                 int flags,
                 size_t *ret_size) {
 
-        char fn[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
         _cleanup_close_ int fd = -1;
+        char fn[PROC_FD_PATH_MAX];
         ssize_t l;
         int r;
 
@@ -172,8 +173,8 @@ int fgetxattrat_fake_malloc(
                 int flags,
                 char **value) {
 
-        char fn[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
         _cleanup_close_ int fd = -1;
+        char fn[PROC_FD_PATH_MAX];
         int r;
 
         r = getxattrat_fake_prepare(dirfd, filename, flags, fn, &fd);

src/core/service.c

@@ -916,7 +916,6 @@ static int service_is_suitable_main_pid(Service *s, pid_t pid, int prio) {
 }
 
 static int service_load_pid_file(Service *s, bool may_warn) {
-        char procfs[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         bool questionable_pid_file = false;
         _cleanup_free_ char *k = NULL;
         _cleanup_close_ int fd = -1;
@@ -945,8 +944,7 @@ static int service_load_pid_file(Service *s, bool may_warn) {
 
         /* Let's read the PID file now that we chased it down. But we need to convert the O_PATH fd
          * chase_symlinks() returned us into a proper fd first. */
-        xsprintf(procfs, "/proc/self/fd/%i", fd);
+        r = read_one_line_file(FORMAT_PROC_FD_PATH(fd), &k);
-        r = read_one_line_file(procfs, &k);
         if (r < 0)
                 return log_unit_error_errno(UNIT(s), r,
                                             "Can't convert PID files %s O_PATH file descriptor to proper file descriptor: %m",

src/cryptsetup/cryptsetup-pkcs11.c

@@ -24,83 +24,6 @@
 #include "stat-util.h"
 #include "strv.h"
 
-struct pkcs11_callback_data {
-        const char *friendly_name;
-        usec_t until;
-        void *encrypted_key;
-        size_t encrypted_key_size;
-        void *decrypted_key;
-        size_t decrypted_key_size;
-        bool free_encrypted_key;
-        bool headless;
-};
-
-static void pkcs11_callback_data_release(struct pkcs11_callback_data *data) {
-        erase_and_free(data->decrypted_key);
-
-        if (data->free_encrypted_key)
-                free(data->encrypted_key);
-}
-
-static int pkcs11_callback(
-                CK_FUNCTION_LIST *m,
-                CK_SESSION_HANDLE session,
-                CK_SLOT_ID slot_id,
-                const CK_SLOT_INFO *slot_info,
-                const CK_TOKEN_INFO *token_info,
-                P11KitUri *uri,
-                void *userdata) {
-
-        struct pkcs11_callback_data *data = userdata;
-        CK_OBJECT_HANDLE object;
-        int r;
-
-        assert(m);
-        assert(slot_info);
-        assert(token_info);
-        assert(uri);
-        assert(data);
-
-        /* Called for every token matching our URI */
-
-        r = pkcs11_token_login(
-                        m,
-                        session,
-                        slot_id,
-                        token_info,
-                        data->friendly_name,
-                        "drive-harddisk",
-                        "pkcs11-pin",
-                        "cryptsetup.pkcs11-pin",
-                        data->until,
-                        data->headless,
-                        NULL);
-        if (r < 0)
-                return r;
-
-        /* We are likely called during early boot, where entropy is scarce. Mix some data from the PKCS#11
-         * token, if it supports that. It should be cheap, given that we already are talking to it anyway and
-         * shouldn't hurt. */
-        (void) pkcs11_token_acquire_rng(m, session);
-
-        r = pkcs11_token_find_private_key(m, session, uri, &object);
-        if (r < 0)
-                return r;
-
-        r = pkcs11_token_decrypt_data(
-                        m,
-                        session,
-                        object,
-                        data->encrypted_key,
-                        data->encrypted_key_size,
-                        &data->decrypted_key,
-                        &data->decrypted_key_size);
-        if (r < 0)
-                return r;
-
-        return 0;
-}
-
 int decrypt_pkcs11_key(
                 const char *volume_name,
                 const char *friendly_name,
@@ -115,7 +38,7 @@ int decrypt_pkcs11_key(
                 void **ret_decrypted_key,
                 size_t *ret_decrypted_key_size) {
 
-        _cleanup_(pkcs11_callback_data_release) struct pkcs11_callback_data data = {
+        _cleanup_(pkcs11_crypt_device_callback_data_release) pkcs11_crypt_device_callback_data data = {
                 .friendly_name = friendly_name,
                 .until = until,
                 .headless = headless,
@@ -155,7 +78,7 @@ int decrypt_pkcs11_key(
                 data.free_encrypted_key = true;
         }
 
-        r = pkcs11_find_token(pkcs11_uri, pkcs11_callback, &data);
+        r = pkcs11_find_token(pkcs11_uri, pkcs11_crypt_device_callback, &data);
         if (r < 0)
                 return r;
 

src/cryptsetup/cryptsetup-tokens/cryptsetup-token-systemd-fido2.c

@@ -0,0 +1,224 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <libcryptsetup.h>
+#include <string.h>
+
+#include "cryptsetup-token.h"
+#include "cryptsetup-token-util.h"
+#include "hexdecoct.h"
+#include "json.h"
+#include "luks2-fido2.h"
+#include "memory-util.h"
+#include "version.h"
+
+#define TOKEN_NAME "systemd-fido2"
+#define TOKEN_VERSION_MAJOR "1"
+#define TOKEN_VERSION_MINOR "0"
+
+/* for libcryptsetup debug purpose */
+_public_ const char *cryptsetup_token_version(void) {
+        return TOKEN_VERSION_MAJOR "." TOKEN_VERSION_MINOR " systemd-v" STRINGIFY(PROJECT_VERSION) " (" GIT_VERSION ")";
+}
+
+_public_ int cryptsetup_token_open_pin(
+                struct crypt_device *cd, /* is always LUKS2 context */
+                int token /* is always >= 0 */,
+                const char *pin,
+                size_t pin_size,
+                char **password, /* freed by cryptsetup_token_buffer_free */
+                size_t *password_len,
+                void *usrptr /* plugin defined parameter passed to crypt_activate_by_token*() API */) {
+
+        int r;
+        const char *json;
+        _cleanup_(erase_and_freep) char *pin_string = NULL;
+
+        assert(!pin || pin_size);
+        assert(token >= 0);
+
+        /* This must not fail at this moment (internal error) */
+        r = crypt_token_json_get(cd, token, &json);
+        assert(token == r);
+        assert(json);
+
+        if (pin && memchr(pin, 0, pin_size - 1))
+                return crypt_log_error_errno(cd, ENOANO, "PIN must be characters string.");
+
+        /* pin was passed as pin = pin, pin_size = strlen(pin). We need to add terminating
+         * NULL byte to addressable memory*/
+        if (pin && pin[pin_size-1] != '\0') {
+                pin_string = strndup(pin, pin_size);
+                if (!pin_string)
+                        return crypt_log_oom(cd);
+        }
+
+        return acquire_luks2_key(cd, json, (const char *)usrptr, pin_string ?: pin, password, password_len);
+}
+
+/*
+ * This function is called from within following libcryptsetup calls
+ * provided conditions further below are met:
+ *
+ * crypt_activate_by_token(), crypt_activate_by_token_type(type == 'systemd-fido2'):
+ *
+ * - token is assigned to at least one luks2 keyslot eligible to activate LUKS2 device
+ *   (alternatively: name is set to null, flags contains CRYPT_ACTIVATE_ALLOW_UNBOUND_KEY
+ *    and token is assigned to at least single keyslot).
+ *
+ * - if plugin defines validate funtion (see cryptsetup_token_validate below) it must have
+ *   passed the check (aka return 0)
+ */
+_public_ int cryptsetup_token_open(
+                struct crypt_device *cd, /* is always LUKS2 context */
+                int token /* is always >= 0 */,
+                char **password, /* freed by cryptsetup_token_buffer_free */
+                size_t *password_len,
+                void *usrptr /* plugin defined parameter passed to crypt_activate_by_token*() API */) {
+
+        return cryptsetup_token_open_pin(cd, token, NULL, 0, password, password_len, usrptr);
+}
+
+/*
+ * libcryptsetup callback for memory deallocation of 'password' parameter passed in
+ * any crypt_token_open_* plugin function
+ */
+_public_ void cryptsetup_token_buffer_free(void *buffer, size_t buffer_len) {
+        erase_and_free(buffer);
+}
+
+/*
+ * prints systemd-fido2 token content in crypt_dump().
+ * 'type' and 'keyslots' fields are printed by libcryptsetup
+ */
+_public_ void cryptsetup_token_dump(
+                struct crypt_device *cd /* is always LUKS2 context */,
+                const char *json /* validated 'systemd-tpm2' token if cryptsetup_token_validate is defined */) {
+
+        int r;
+        Fido2EnrollFlags required;
+        size_t cid_size, salt_size;
+        const char *client_pin_req_str, *up_req_str, *uv_req_str;
+        _cleanup_free_ void *cid = NULL, *salt = NULL;
+        _cleanup_free_ char *rp_id = NULL, *cid_str = NULL, *salt_str = NULL;
+
+        assert(json);
+
+        r = parse_luks2_fido2_data(cd, json, &rp_id, &salt, &salt_size, &cid, &cid_size, &required);
+        if (r < 0)
+                return (void) crypt_log_debug_errno(cd, r, "Failed to parse " TOKEN_NAME " metadata: %m.");
+
+        r = crypt_dump_buffer_to_hex_string(cid, cid_size, &cid_str);
+        if (r < 0)
+                return (void) crypt_log_debug_errno(cd, r, "Can not dump " TOKEN_NAME " content: %m");
+
+        r = crypt_dump_buffer_to_hex_string(salt, salt_size, &salt_str);
+        if (r < 0)
+                return (void) crypt_log_debug_errno(cd, r, "Can not dump " TOKEN_NAME " content: %m");
+
+        if (required & FIDO2ENROLL_PIN)
+                client_pin_req_str = "true";
+        else if (required & FIDO2ENROLL_PIN_IF_NEEDED)
+                client_pin_req_str = NULL;
+        else
+                client_pin_req_str = "false";
+
+        if (required & FIDO2ENROLL_UP)
+                up_req_str = "true";
+        else if (required & FIDO2ENROLL_UP_IF_NEEDED)
+                up_req_str = NULL;
+        else
+                up_req_str = "false";
+
+        if (required & FIDO2ENROLL_UV)
+                uv_req_str = "true";
+        else if (required & FIDO2ENROLL_UV_OMIT)
+                uv_req_str = NULL;
+        else
+                uv_req_str = "false";
+
+        crypt_log(cd, "\tfido2-credential:" CRYPT_DUMP_LINE_SEP "%s\n", cid_str);
+        crypt_log(cd, "\tfido2-salt: %s\n", salt_str);
+
+        /* optional fields */
+        if (rp_id)
+                crypt_log(cd, "\tfido2-rp:   %s\n", rp_id);
+        if (client_pin_req_str)
+                crypt_log(cd, "\tfido2-clientPin-required:" CRYPT_DUMP_LINE_SEP "%s\n",
+                          client_pin_req_str);
+        if (up_req_str)
+                crypt_log(cd, "\tfido2-up-required:" CRYPT_DUMP_LINE_SEP "%s\n", up_req_str);
+        if (uv_req_str)
+                crypt_log(cd, "\tfido2-uv-required:" CRYPT_DUMP_LINE_SEP "%s\n", uv_req_str);
+}
+
+/*
+ * Note:
+ *   If plugin is available in library path, it's called in before following libcryptsetup calls:
+ *
+ *   crypt_token_json_set, crypt_dump, any crypt_activate_by_token_* flavour
+ */
+_public_ int cryptsetup_token_validate(
+                struct crypt_device *cd, /* is always LUKS2 context */
+                const char *json /* contains valid 'type' and 'keyslots' fields. 'type' is 'systemd-tpm2' */) {
+
+        int r;
+        JsonVariant *w;
+       _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+
+        assert(json);
+
+        r = json_parse(json, 0, &v, NULL, NULL);
+        if (r < 0)
+                return crypt_log_debug_errno(cd, r, "Could not parse " TOKEN_NAME " json object: %m.");
+
+        w = json_variant_by_key(v, "fido2-credential");
+        if (!w || !json_variant_is_string(w)) {
+                crypt_log_debug(cd, "FIDO2 token data lacks 'fido2-credential' field.");
+                return 1;
+        }
+
+        r = unbase64mem(json_variant_string(w), SIZE_MAX, NULL, NULL);
+        if (r < 0)
+                return crypt_log_debug_errno(cd, r, "Invalid base64 data in 'fido2-credential' field: %m");
+
+        w = json_variant_by_key(v, "fido2-salt");
+        if (!w || !json_variant_is_string(w)) {
+                crypt_log_debug(cd, "FIDO2 token data lacks 'fido2-salt' field.");
+                return 1;
+        }
+
+        r = unbase64mem(json_variant_string(w), SIZE_MAX, NULL, NULL);
+        if (r < 0)
+                return crypt_log_debug_errno(cd, r, "Failed to decode base64 encoded salt: %m.");
+
+        /* The "rp" field is optional. */
+        w = json_variant_by_key(v, "fido2-rp");
+        if (w && !json_variant_is_string(w)) {
+                crypt_log_debug(cd, "FIDO2 token data's 'fido2-rp' field is not a string.");
+                return 1;
+        }
+
+        /* The "fido2-clientPin-required" field is optional. */
+        w = json_variant_by_key(v, "fido2-clientPin-required");
+        if (w && !json_variant_is_boolean(w)) {
+                crypt_log_debug(cd, "FIDO2 token data's 'fido2-clientPin-required' field is not a boolean.");
+                return 1;
+        }
+
+        /* The "fido2-up-required" field is optional. */
+        w = json_variant_by_key(v, "fido2-up-required");
+        if (w && !json_variant_is_boolean(w)) {
+                crypt_log_debug(cd, "FIDO2 token data's 'fido2-up-required' field is not a boolean.");
+                return 1;
+        }
+
+        /* The "fido2-uv-required" field is optional. */
+        w = json_variant_by_key(v, "fido2-uv-required");
+        if (w && !json_variant_is_boolean(w)) {
+                crypt_log_debug(cd, "FIDO2 token data's 'fido2-uv-required' field is not a boolean.");
+                return 1;
+        }
+
+        return 0;
+}

src/cryptsetup/cryptsetup-tokens/cryptsetup-token-systemd-pkcs11.c

@@ -0,0 +1,143 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <libcryptsetup.h>
+
+#include "cryptsetup-token.h"
+#include "cryptsetup-token-util.h"
+#include "hexdecoct.h"
+#include "json.h"
+#include "luks2-pkcs11.h"
+#include "memory-util.h"
+#include "pkcs11-util.h"
+#include "version.h"
+
+#define TOKEN_NAME "systemd-pkcs11"
+#define TOKEN_VERSION_MAJOR "1"
+#define TOKEN_VERSION_MINOR "0"
+
+/* for libcryptsetup debug purpose */
+_public_ const char *cryptsetup_token_version(void) {
+        return TOKEN_VERSION_MAJOR "." TOKEN_VERSION_MINOR " systemd-v" STRINGIFY(PROJECT_VERSION) " (" GIT_VERSION ")";
+}
+
+_public_ int cryptsetup_token_open_pin(
+                struct crypt_device *cd, /* is always LUKS2 context */
+                int token /* is always >= 0 */,
+                const char *pin,
+                size_t pin_size,
+                char **password, /* freed by cryptsetup_token_buffer_free */
+                size_t *password_len,
+                void *usrptr /* plugin defined parameter passed to crypt_activate_by_token*() API */) {
+
+        const char *json;
+        int r;
+
+        assert(!pin || pin_size);
+        assert(token >= 0);
+
+        /* This must not fail at this moment (internal error) */
+        r = crypt_token_json_get(cd, token, &json);
+        assert(token == r);
+        assert(json);
+
+        return acquire_luks2_key(cd, json, usrptr, pin, pin_size, password, password_len);
+}
+
+/*
+ * This function is called from within following libcryptsetup calls
+ * provided conditions further below are met:
+ *
+ * crypt_activate_by_token(), crypt_activate_by_token_type(type == 'systemd-pkcs11'):
+ *
+ * - token is assigned to at least one luks2 keyslot eligible to activate LUKS2 device
+ *   (alternatively: name is set to null, flags contains CRYPT_ACTIVATE_ALLOW_UNBOUND_KEY
+ *    and token is assigned to at least single keyslot).
+ *
+ * - if plugin defines validate funtion (see cryptsetup_token_validate below) it must have
+ *   passed the check (aka return 0)
+ */
+_public_ int cryptsetup_token_open(
+                struct crypt_device *cd, /* is always LUKS2 context */
+                int token /* is always >= 0 */,
+                char **password, /* freed by cryptsetup_token_buffer_free */
+                size_t *password_len,
+                void *usrptr /* plugin defined parameter passed to crypt_activate_by_token*() API */) {
+
+        return cryptsetup_token_open_pin(cd, token, NULL, 0, password, password_len, usrptr);
+}
+
+/*
+ * libcryptsetup callback for memory deallocation of 'password' parameter passed in
+ * any crypt_token_open_* plugin function
+ */
+_public_ void cryptsetup_token_buffer_free(void *buffer, size_t buffer_len) {
+        erase_and_free(buffer);
+}
+
+/*
+ * prints systemd-pkcs11 token content in crypt_dump().
+ * 'type' and 'keyslots' fields are printed by libcryptsetup
+ */
+_public_ void cryptsetup_token_dump(
+                struct crypt_device *cd /* is always LUKS2 context */,
+                const char *json /* validated 'systemd-pkcs11' token if cryptsetup_token_validate is defined */) {
+
+        int r;
+        size_t pkcs11_key_size;
+        _cleanup_free_ char *pkcs11_uri = NULL, *key_str = NULL;
+        _cleanup_free_ void *pkcs11_key = NULL;
+
+        r = parse_luks2_pkcs11_data(cd, json, &pkcs11_uri, &pkcs11_key, &pkcs11_key_size);
+        if (r < 0)
+                return (void) crypt_log_debug_errno(cd, r, "Failed to parse " TOKEN_NAME " metadata: %m.");
+
+        r = crypt_dump_buffer_to_hex_string(pkcs11_key, pkcs11_key_size, &key_str);
+        if (r < 0)
+                return (void) crypt_log_debug_errno(cd, r, "Can not dump " TOKEN_NAME " content: %m");
+
+        crypt_log(cd, "\tpkcs11-uri: %s\n", pkcs11_uri);
+        crypt_log(cd, "\tpkcs11-key: %s\n", key_str);
+}
+
+/*
+ * Note:
+ *   If plugin is available in library path, it's called in before following libcryptsetup calls:
+ *
+ *   crypt_token_json_set, crypt_dump, any crypt_activate_by_token_* flavour
+ */
+_public_ int cryptsetup_token_validate(
+                struct crypt_device *cd, /* is always LUKS2 context */
+                const char *json /* contains valid 'type' and 'keyslots' fields. 'type' is 'systemd-pkcs11' */) {
+
+        int r;
+        JsonVariant *w;
+        _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+
+        r = json_parse(json, 0, &v, NULL, NULL);
+        if (r < 0)
+                return crypt_log_debug_errno(cd, r, "Could not parse " TOKEN_NAME " json object: %m.");
+
+        w = json_variant_by_key(v, "pkcs11-uri");
+        if (!w || !json_variant_is_string(w)) {
+                crypt_log_debug(cd, "PKCS#11 token data lacks 'pkcs11-uri' field.");
+                return 1;
+        }
+
+        if (!pkcs11_uri_valid(json_variant_string(w))) {
+                crypt_log_debug(cd, "PKCS#11 token data contains invalid PKCS#11 URI.");
+                return 1;
+        }
+
+        w = json_variant_by_key(v, "pkcs11-key");
+        if (!w || !json_variant_is_string(w)) {
+                crypt_log_debug(cd, "PKCS#11 token data lacks 'pkcs11-key' field.");
+                return 1;
+        }
+
+        r = unbase64mem(json_variant_string(w), SIZE_MAX, NULL, NULL);
+        if (r < 0)
+                return crypt_log_debug_errno(cd, r, "Failed to decode base64 encoded key: %m.");
+
+        return 0;
+}

src/cryptsetup/cryptsetup-tokens/cryptsetup-token-util.h

@@ -2,23 +2,34 @@
 
 #pragma once
 
+#include <stdbool.h>
 #include <stddef.h>
+#include <libcryptsetup.h>
 
 /* crypt_dump() internal indentation magic */
 #define CRYPT_DUMP_LINE_SEP "\n\t            "
 
-#define crypt_log_debug(cd, ...) crypt_logf(cd, CRYPT_LOG_DEBUG,  __VA_ARGS__)
+#define crypt_log_debug(cd, ...)   crypt_logf(cd, CRYPT_LOG_DEBUG,   __VA_ARGS__)
-#define crypt_log_error(cd, ...) crypt_logf(cd, CRYPT_LOG_ERROR,  __VA_ARGS__)
+#define crypt_log_error(cd, ...)   crypt_logf(cd, CRYPT_LOG_ERROR,   __VA_ARGS__)
-#define crypt_log(cd, ...)       crypt_logf(cd, CRYPT_LOG_NORMAL, __VA_ARGS__)
+#define crypt_log_verbose(cd, ...) crypt_logf(cd, CRYPT_LOG_VERBOSE, __VA_ARGS__)
+#define crypt_log(cd, ...)         crypt_logf(cd, CRYPT_LOG_NORMAL,  __VA_ARGS__)
 
-#define crypt_log_debug_errno(cd, e, ...) ({ \
+#define crypt_log_full_errno(cd, e, lvl, ...) ({ \
         int _e = abs(e), _s = errno; \
         errno = _e; \
-        crypt_logf(cd, CRYPT_LOG_DEBUG, __VA_ARGS__); \
+        crypt_logf(cd, lvl, __VA_ARGS__); \
         errno = _s; \
         -_e; \
 })
 
+#define crypt_log_debug_errno(cd, e, ...) \
+        crypt_log_full_errno(cd, e, CRYPT_LOG_DEBUG, __VA_ARGS__)
+
+#define crypt_log_error_errno(cd, e, ...) \
+        crypt_log_full_errno(cd, e, CRYPT_LOG_ERROR, __VA_ARGS__)
+
+#define crypt_log_oom(cd) crypt_log_error_errno(cd, ENOMEM, "Not enough memory.")
+
 int crypt_dump_buffer_to_hex_string(
                 const char *buf,
                 size_t buf_size,

src/cryptsetup/cryptsetup-tokens/cryptsetup-token.h

@@ -8,6 +8,10 @@ const char *cryptsetup_token_version(void);
 int cryptsetup_token_open(struct crypt_device *cd, int token,
         char **password, size_t *password_len, void *usrptr);
 
+int cryptsetup_token_open_pin(struct crypt_device *cd, int token,
+        const char *pin, size_t pin_size,
+        char **password, size_t *password_len, void *usrptr);
+
 void cryptsetup_token_dump(struct crypt_device *cd, const char *json);
 
 int cryptsetup_token_validate(struct crypt_device *cd, const char *json);

src/cryptsetup/cryptsetup-tokens/cryptsetup-token.sym

@@ -10,6 +10,7 @@
 CRYPTSETUP_TOKEN_1.0 {
 global:
         cryptsetup_token_open;
+        cryptsetup_token_open_pin;
         cryptsetup_token_buffer_free;
         cryptsetup_token_validate;
         cryptsetup_token_dump;

src/cryptsetup/cryptsetup-tokens/luks2-fido2.c

@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <libcryptsetup.h>
+
+#include "cryptsetup-token-util.h"
+#include "hexdecoct.h"
+#include "json.h"
+#include "luks2-fido2.h"
+#include "memory-util.h"
+#include "strv.h"
+
+int acquire_luks2_key(
+                struct crypt_device *cd,
+                const char *json,
+                const char *device,
+                const char *pin,
+                char **ret_keyslot_passphrase,
+                size_t *ret_keyslot_passphrase_size) {
+
+        int r;
+        Fido2EnrollFlags required;
+        size_t cid_size, salt_size, decrypted_key_size;
+        _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+        _cleanup_free_ void *cid = NULL, *salt = NULL;
+        _cleanup_free_ char *rp_id = NULL;
+        _cleanup_(erase_and_freep) void *decrypted_key = NULL;
+        _cleanup_(erase_and_freep) char *base64_encoded = NULL;
+        _cleanup_strv_free_erase_ char **pins = NULL;
+
+        assert(ret_keyslot_passphrase);
+        assert(ret_keyslot_passphrase_size);
+
+        r = parse_luks2_fido2_data(cd, json, &rp_id, &salt, &salt_size, &cid, &cid_size, &required);
+        if (r < 0)
+                return r;
+
+        if (pin) {
+                pins = strv_new(pin);
+                if (!pins)
+                        return crypt_log_oom(cd);
+        }
+
+        /* configured to use pin but none was provided */
+        if ((required & FIDO2ENROLL_PIN) && strv_isempty(pins))
+                return -ENOANO;
+
+        r = fido2_use_hmac_hash(
+                        device,
+                        rp_id ?: "io.systemd.cryptsetup",
+                        salt, salt_size,
+                        cid, cid_size,
+                        pins,
+                        required,
+                        &decrypted_key,
+                        &decrypted_key_size);
+        if (r == -ENOLCK) /* libcryptsetup returns -ENOANO also on wrong pin */
+                r = -ENOANO;
+        if (r < 0)
+                return r;
+
+        /* Before using this key as passphrase we base64 encode it, for compat with homed */
+        r = base64mem(decrypted_key, decrypted_key_size, &base64_encoded);
+        if (r < 0)
+                return crypt_log_error_errno(cd, r, "Can not base64 encode key: %m");
+
+        *ret_keyslot_passphrase = TAKE_PTR(base64_encoded);
+        *ret_keyslot_passphrase_size = strlen(*ret_keyslot_passphrase);
+
+        return 0;
+}
+
+/* this function expects valid "systemd-fido2" in json */
+int parse_luks2_fido2_data(
+                struct crypt_device *cd,
+                const char *json,
+                char **ret_rp_id,
+                void **ret_salt,
+                size_t *ret_salt_size,
+                void **ret_cid,
+                size_t *ret_cid_size,
+                Fido2EnrollFlags *ret_required) {
+
+        _cleanup_free_ void *cid = NULL, *salt = NULL;
+        size_t cid_size = 0, salt_size = 0;
+        _cleanup_free_ char *rp = NULL;
+        int r;
+        _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+        JsonVariant *w;
+        Fido2EnrollFlags required = 0;
+
+        assert(json);
+        assert(ret_rp_id);
+        assert(ret_salt);
+        assert(ret_salt_size);
+        assert(ret_cid);
+        assert(ret_cid_size);
+        assert(ret_required);
+
+        r = json_parse(json, 0, &v, NULL, NULL);
+        if (r < 0)
+                return crypt_log_error_errno(cd, r, "Failed to parse JSON token data: %m");
+
+        w = json_variant_by_key(v, "fido2-credential");
+        if (!w)
+                return -EINVAL;
+
+        r = unbase64mem(json_variant_string(w), SIZE_MAX, &cid, &cid_size);
+        if (r < 0)
+                return crypt_log_error_errno(cd, r, "Failed to parse 'fido2-credentials' field: %m");
+
+        w = json_variant_by_key(v, "fido2-salt");
+        if (!w)
+                return -EINVAL;
+
+        r = unbase64mem(json_variant_string(w), SIZE_MAX, &salt, &salt_size);
+        if (r < 0)
+                return crypt_log_error_errno(cd, r, "Failed to parse 'fido2-salt' field: %m");
+
+        w = json_variant_by_key(v, "fido2-rp");
+        if (w) {
+                /* The "rp" field is optional. */
+                rp = strdup(json_variant_string(w));
+                if (!rp) {
+                        crypt_log_error(cd, "Not enough memory.");
+                        return -ENOMEM;
+                }
+        }
+
+        w = json_variant_by_key(v, "fido2-clientPin-required");
+        if (w)
+                /* The "fido2-clientPin-required" field is optional. */
+                SET_FLAG(required, FIDO2ENROLL_PIN, json_variant_boolean(w));
+        else
+                required |= FIDO2ENROLL_PIN_IF_NEEDED; /* compat with 248, where the field was unset */
+
+        w = json_variant_by_key(v, "fido2-up-required");
+        if (w)
+                /* The "fido2-up-required" field is optional. */
+                SET_FLAG(required, FIDO2ENROLL_UP, json_variant_boolean(w));
+        else
+                required |= FIDO2ENROLL_UP_IF_NEEDED; /* compat with 248 */
+
+        w = json_variant_by_key(v, "fido2-uv-required");
+        if (w)
+                /* The "fido2-uv-required" field is optional. */
+                SET_FLAG(required, FIDO2ENROLL_UV, json_variant_boolean(w));
+        else
+                required |= FIDO2ENROLL_UV_OMIT; /* compat with 248 */
+
+        *ret_rp_id = TAKE_PTR(rp);
+        *ret_cid = TAKE_PTR(cid);
+        *ret_cid_size = cid_size;
+        *ret_salt = TAKE_PTR(salt);
+        *ret_salt_size = salt_size;
+        *ret_required = required;
+
+        return 0;
+}

src/cryptsetup/cryptsetup-tokens/luks2-fido2.h

@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include "libfido2-util.h"
+
+struct crypt_device;
+
+int acquire_luks2_key(
+                struct crypt_device *cd,
+                const char *json,
+                const char *device,
+                const char *pin,
+                char **ret_keyslot_passphrase,
+                size_t *ret_keyslot_passphrase_size);
+
+int parse_luks2_fido2_data(
+                struct crypt_device *cd,
+                const char *json,
+                char **ret_rp_id,
+                void **ret_salt,
+                size_t *ret_salt_size,
+                void **ret_cid,
+                size_t *ret_cid_size,
+                Fido2EnrollFlags *ret_required);

src/cryptsetup/cryptsetup-tokens/luks2-pkcs11.c

@@ -0,0 +1,271 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <p11-kit/p11-kit.h>
+#include <p11-kit/uri.h>
+
+#include "cryptsetup-token-util.h"
+#include "escape.h"
+#include "hexdecoct.h"
+#include "json.h"
+#include "luks2-pkcs11.h"
+#include "memory-util.h"
+#include "pkcs11-util.h"
+#include "time-util.h"
+
+struct luks2_pkcs11_callback_data {
+        struct crypt_device *cd;
+        const char *pin;
+        size_t pin_size;
+        void *encrypted_key;
+        size_t encrypted_key_size;
+        void *decrypted_key;
+        size_t decrypted_key_size;
+};
+
+static int luks2_pkcs11_callback(
+                CK_FUNCTION_LIST *m,
+                CK_SESSION_HANDLE session,
+                CK_SLOT_ID slot_id,
+                const CK_SLOT_INFO *slot_info,
+                const CK_TOKEN_INFO *token_info,
+                P11KitUri *uri,
+                void *userdata) {
+
+        CK_OBJECT_HANDLE object;
+        CK_RV rv;
+        CK_TOKEN_INFO updated_token_info;
+        int r;
+        _cleanup_free_ char *token_label = NULL;
+        struct luks2_pkcs11_callback_data *data = userdata;
+
+        assert(m);
+        assert(slot_info);
+        assert(token_info);
+        assert(uri);
+        assert(data);
+
+        token_label = pkcs11_token_label(token_info);
+        if (!token_label)
+                return -ENOMEM;
+
+        /* Called for every token matching our URI */
+        r = pkcs11_token_login_by_pin(m, session, token_info, token_label, data->pin, data->pin_size);
+        if (r == -ENOLCK) {
+                /* Referesh the token info, so that we can prompt knowing the new flags if they changed. */
+                rv = m->C_GetTokenInfo(slot_id, &updated_token_info);
+                if (rv != CKR_OK) {
+                        crypt_log_error(data->cd,
+                                       "Failed to acquire updated security token information for slot %lu: %s",
+                                       slot_id, p11_kit_strerror(rv));
+                        return -EIO;
+                }
+                token_info = &updated_token_info;
+                r = -ENOANO;
+        }
+
+        if (r == -ENOANO) {
+                if (FLAGS_SET(token_info->flags, CKF_USER_PIN_FINAL_TRY))
+                        crypt_log_error(data->cd, "Please enter correct PIN for security token "
+                                        "'%s' in order to unlock it (final try).", token_label);
+                else if (FLAGS_SET(token_info->flags, CKF_USER_PIN_COUNT_LOW))
+                        crypt_log_error(data->cd, "PIN has been entered incorrectly previously, "
+                                      "please enter correct PIN for security token '%s' in order to unlock it.",
+                                      token_label);
+        }
+
+        if (r == -EPERM) /* pin is locked, but map it to -ENOANO anyway */
+                r = -ENOANO;
+
+        if (r < 0)
+                return r;
+
+        r = pkcs11_token_find_private_key(m, session, uri, &object);
+        if (r < 0)
+                return r;
+
+        r = pkcs11_token_decrypt_data(
+                        m,
+                        session,
+                        object,
+                        data->encrypted_key,
+                        data->encrypted_key_size,
+                        &data->decrypted_key,
+                        &data->decrypted_key_size);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+
+static void luks2_pkcs11_callback_data_release(struct luks2_pkcs11_callback_data *data) {
+        erase_and_free(data->decrypted_key);
+}
+
+static int acquire_luks2_key_by_pin(
+                struct crypt_device *cd,
+                const char *pkcs11_uri,
+                const void *pin,
+                size_t pin_size,
+                void *encrypted_key,
+                size_t encrypted_key_size,
+                void **ret_decrypted_key,
+                size_t *ret_decrypted_key_size) {
+
+        int r;
+        _cleanup_(luks2_pkcs11_callback_data_release) struct luks2_pkcs11_callback_data data = {
+                .cd = cd,
+                .pin = pin,
+                .pin_size = pin_size,
+                .encrypted_key = encrypted_key,
+                .encrypted_key_size = encrypted_key_size,
+        };
+
+        assert(pkcs11_uri);
+        assert(encrypted_key);
+        assert(ret_decrypted_key);
+        assert(ret_decrypted_key_size);
+
+        r = pkcs11_find_token(pkcs11_uri, luks2_pkcs11_callback, &data);
+        if (r < 0)
+                return r;
+
+        *ret_decrypted_key = TAKE_PTR(data.decrypted_key);
+        *ret_decrypted_key_size = data.decrypted_key_size;
+
+        return 0;
+}
+
+/* called from within systemd utilities */
+static int acquire_luks2_key_systemd(
+                const char *pkcs11_uri,
+                systemd_pkcs11_plugin_params *params,
+                void *encrypted_key,
+                size_t encrypted_key_size,
+                void **ret_decrypted_key,
+                size_t *ret_decrypted_key_size) {
+
+        int r;
+        _cleanup_(pkcs11_crypt_device_callback_data_release) pkcs11_crypt_device_callback_data data = {
+                .encrypted_key = encrypted_key,
+                .encrypted_key_size = encrypted_key_size,
+                .free_encrypted_key = false
+        };
+
+        assert(pkcs11_uri);
+        assert(encrypted_key);
+        assert(ret_decrypted_key);
+        assert(ret_decrypted_key_size);
+        assert(params);
+
+        data.friendly_name = params->friendly_name;
+        data.headless = params->headless;
+        data.until = params->until;
+
+        /* The functions called here log about all errors, except for EAGAIN which means "token not found right now" */
+        r = pkcs11_find_token(pkcs11_uri, pkcs11_crypt_device_callback, &data);
+        if (r < 0)
+                return r;
+
+        *ret_decrypted_key = TAKE_PTR(data.decrypted_key);
+        *ret_decrypted_key_size = data.decrypted_key_size;
+
+        return 0;
+}
+
+int acquire_luks2_key(
+                struct crypt_device *cd,
+                const char *json,
+                void *userdata,
+                const void *pin,
+                size_t pin_size,
+                char **ret_password,
+                size_t *ret_password_size) {
+
+        int r;
+        size_t decrypted_key_size, encrypted_key_size;
+        _cleanup_(erase_and_freep) void *decrypted_key = NULL;
+        _cleanup_(erase_and_freep) char *base64_encoded = NULL;
+        _cleanup_free_ char *pkcs11_uri = NULL;
+        _cleanup_free_ void *encrypted_key = NULL;
+        systemd_pkcs11_plugin_params *pkcs11_params = userdata;
+
+        assert(json);
+        assert(ret_password);
+        assert(ret_password_size);
+
+        r = parse_luks2_pkcs11_data(cd, json, &pkcs11_uri, &encrypted_key, &encrypted_key_size);
+        if (r < 0)
+                return r;
+
+        if (pkcs11_params && pin)
+                crypt_log_verbose(cd, "PIN parameter ignored in interactive mode.");
+
+        if (pkcs11_params) /* systemd based activation with interactive pin query callbacks */
+                r = acquire_luks2_key_systemd(
+                        pkcs11_uri,
+                        pkcs11_params,
+                        encrypted_key, encrypted_key_size,
+                        &decrypted_key, &decrypted_key_size);
+        else /* default activation that provides single PIN if needed */
+                r = acquire_luks2_key_by_pin(
+                        cd, pkcs11_uri, pin, pin_size,
+                        encrypted_key, encrypted_key_size,
+                        &decrypted_key, &decrypted_key_size);
+        if (r < 0)
+                return r;
+
+        r = base64mem(decrypted_key, decrypted_key_size, &base64_encoded);
+        if (r < 0)
+                return crypt_log_error_errno(cd, r, "Can not base64 encode key: %m");
+
+        *ret_password = TAKE_PTR(base64_encoded);
+        *ret_password_size = strlen(*ret_password);
+
+        return 0;
+}
+
+int parse_luks2_pkcs11_data(
+                struct crypt_device *cd,
+                const char *json,
+                char **ret_uri,
+                void **ret_encrypted_key,
+                size_t *ret_encrypted_key_size) {
+
+        int r;
+        size_t key_size;
+        _cleanup_free_ char *uri = NULL;
+        _cleanup_free_ void *key = NULL;
+        _cleanup_(json_variant_unrefp) JsonVariant *v = NULL;
+        JsonVariant *w;
+
+        assert(json);
+        assert(ret_uri);
+        assert(ret_encrypted_key);
+        assert(ret_encrypted_key_size);
+
+        r = json_parse(json, 0, &v, NULL, NULL);
+        if (r < 0)
+                return r;
+
+        w = json_variant_by_key(v, "pkcs11-uri");
+        if (!w)
+                return -EINVAL;
+
+        uri = strdup(json_variant_string(w));
+        if (!uri)
+                return -ENOMEM;
+
+        w = json_variant_by_key(v, "pkcs11-key");
+        if (!w)
+                return -EINVAL;
+
+        r = unbase64mem(json_variant_string(w), SIZE_MAX, &key, &key_size);
+        if (r < 0)
+                return crypt_log_debug_errno(cd, r, "Failed to decode base64 encoded key: %m.");
+
+        *ret_uri = TAKE_PTR(uri);
+        *ret_encrypted_key = TAKE_PTR(key);
+        *ret_encrypted_key_size = key_size;
+
+        return 0;
+}

src/cryptsetup/cryptsetup-tokens/luks2-pkcs11.h

@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#pragma once
+
+struct crypt_device;
+
+int acquire_luks2_key(
+                struct crypt_device *cd,
+                const char *json,
+                void *userdata,
+                const void *pin,
+                size_t pin_size,
+                char **password,
+                size_t *password_size);
+
+int parse_luks2_pkcs11_data(
+                struct crypt_device *cd,
+                const char *json,
+                char **ret_uri,
+                void **ret_encrypted_key,
+                size_t *ret_encrypted_key_size);

src/cryptsetup/cryptsetup-tokens/meson.build

@@ -25,4 +25,40 @@ if conf.get('HAVE_TPM2') == 1
                 c_args : cryptsetup_token_c_args)
 endif
 
+if conf.get('HAVE_LIBFIDO2') == 1
+        cryptsetup_token_systemd_fido2_sources = files('''
+                cryptsetup-token-systemd-fido2.c
+                cryptsetup-token.h
+                cryptsetup-token-util.h
+                cryptsetup-token-util.c
+                luks2-fido2.c
+                luks2-fido2.h
+        '''.split())
+
+        cryptsetup_token_systemd_fido2_static = static_library(
+                'cryptsetup-token-systemd-fido2_static',
+                cryptsetup_token_systemd_fido2_sources,
+                include_directories : includes,
+                dependencies : libshared_deps + [libcryptsetup, versiondep],
+                c_args : cryptsetup_token_c_args)
+endif
+
+if conf.get('HAVE_P11KIT') == 1
+        cryptsetup_token_systemd_pkcs11_sources = files('''
+                cryptsetup-token-systemd-pkcs11.c
+                cryptsetup-token.h
+                cryptsetup-token-util.h
+                cryptsetup-token-util.c
+                luks2-pkcs11.c
+                luks2-pkcs11.h
+        '''.split())
+
+        cryptsetup_token_systemd_pkcs11_static = static_library(
+                'cryptsetup-token-systemd-pkcs11_static',
+                cryptsetup_token_systemd_pkcs11_sources,
+                include_directories : includes,
+                dependencies : libshared_deps + [libcryptsetup, versiondep],
+                c_args : cryptsetup_token_c_args)
+endif
+
 endif

src/cryptsetup/cryptsetup.c

@@ -736,6 +736,105 @@ static int make_security_device_monitor(sd_event *event, sd_device_monitor **ret
         return 0;
 }
 
+static bool libcryptsetup_plugins_support(void) {
+#if HAVE_LIBCRYPTSETUP_PLUGINS
+        return crypt_token_external_path() != NULL;
+#else
+        return false;
+#endif
+}
+
+#if HAVE_LIBCRYPTSETUP_PLUGINS
+static int acquire_pins_from_env_variable(char ***ret_pins) {
+        char *e;
+        _cleanup_strv_free_erase_ char **pins = NULL;
+
+        assert(ret_pins);
+
+        e = getenv("PIN");
+        if (e) {
+                pins = strv_new(e);
+                if (!pins)
+                        return log_oom();
+
+                string_erase(e);
+                if (unsetenv("PIN") < 0)
+                        return log_error_errno(errno, "Failed to unset $PIN: %m");
+        }
+
+        *ret_pins = TAKE_PTR(pins);
+
+        return 0;
+}
+#endif
+
+static int attach_luks2_by_fido2(
+                struct crypt_device *cd,
+                const char *name,
+                usec_t until,
+                bool headless,
+                void *usrptr,
+                uint32_t activation_flags) {
+
+        int r = -EOPNOTSUPP;
+#if HAVE_LIBCRYPTSETUP_PLUGINS
+        char **p;
+        _cleanup_strv_free_erase_ char **pins = NULL;
+        AskPasswordFlags flags = ASK_PASSWORD_PUSH_CACHE | ASK_PASSWORD_ACCEPT_CACHED;
+
+        r = crypt_activate_by_token_pin(cd, name, "systemd-fido2", CRYPT_ANY_TOKEN, NULL, 0, usrptr, activation_flags);
+        if (r > 0) /* returns unlocked keyslot id on success */
+                r = 0;
+        if (r != -ENOANO) /* needs pin or pin is wrong */
+                return r;
+
+        r = acquire_pins_from_env_variable(&pins);
+        if (r < 0)
+                return r;
+
+        STRV_FOREACH(p, pins) {
+                r = crypt_activate_by_token_pin(cd, name, "systemd-fido2", CRYPT_ANY_TOKEN, *p, strlen(*p), usrptr, activation_flags);
+                if (r > 0) /* returns unlocked keyslot id on success */
+                        r = 0;
+                if (r != -ENOANO) /* needs pin or pin is wrong */
+                        return r;
+        }
+
+        if (headless)
+                return log_error_errno(SYNTHETIC_ERRNO(ENOPKG), "PIN querying disabled via 'headless' option. Use the '$PIN' environment variable.");
+
+        pins = strv_free_erase(pins);
+        r = ask_password_auto("Please enter security token PIN:", "drive-harddisk", NULL, "fido2-pin", "cryptsetup.fido2-pin", until, flags, &pins);
+        if (r < 0)
+                return r;
+
+        STRV_FOREACH(p, pins) {
+                r = crypt_activate_by_token_pin(cd, name, "systemd-fido2", CRYPT_ANY_TOKEN, *p, strlen(*p), usrptr, activation_flags);
+                if (r > 0) /* returns unlocked keyslot id on success */
+                        r = 0;
+                if (r != -ENOANO) /* needs pin or pin is wrong */
+                        return r;
+        }
+
+        flags &= ~ASK_PASSWORD_ACCEPT_CACHED;
+        for (;;) {
+                pins = strv_free_erase(pins);
+                r = ask_password_auto("Please enter security token PIN:", "drive-harddisk", NULL, "fido2-pin", "cryptsetup.fido2-pin", until, flags, &pins);
+                if (r < 0)
+                        return r;
+
+                STRV_FOREACH(p, pins) {
+                        r = crypt_activate_by_token_pin(cd, name, "systemd-fido2", CRYPT_ANY_TOKEN, *p, strlen(*p), usrptr, activation_flags);
+                        if (r > 0) /* returns unlocked keyslot id on success */
+                                r = 0;
+                        if (r != -ENOANO) /* needs pin or pin is wrong */
+                                return r;
+                }
+        }
+#endif
+        return r;
+}
+
 static int attach_luks_or_plain_or_bitlk_by_fido2(
                 struct crypt_device *cd,
                 const char *name,
@@ -750,12 +849,13 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
         _cleanup_(erase_and_freep) void *decrypted_key = NULL;
         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
         _cleanup_free_ void *discovered_salt = NULL, *discovered_cid = NULL;
-        size_t discovered_salt_size, discovered_cid_size, cid_size, decrypted_key_size;
+        size_t discovered_salt_size, discovered_cid_size, decrypted_key_size, cid_size = 0;
         _cleanup_free_ char *friendly = NULL, *discovered_rp_id = NULL;
         int keyslot = arg_key_slot, r;
-        const char *rp_id;
+        const char *rp_id = NULL;
-        const void *cid;
+        const void *cid = NULL;
         Fido2EnrollFlags required;
+        bool use_libcryptsetup_plugin = libcryptsetup_plugins_support();
 
         assert(cd);
         assert(name);
@@ -775,7 +875,7 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
                  * use PIN + UP when needed, and do not configure UV at all. Eventually, we should make this
                  * explicitly configurable. */
                 required = FIDO2ENROLL_PIN_IF_NEEDED | FIDO2ENROLL_UP_IF_NEEDED | FIDO2ENROLL_UV_OMIT;
-        } else {
+        } else if (!use_libcryptsetup_plugin) {
                 r = find_fido2_auto_data(
                                 cd,
                                 &discovered_rp_id,
@@ -810,21 +910,30 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
         for (;;) {
                 bool processed = false;
 
-                r = acquire_fido2_key(
+                if (use_libcryptsetup_plugin && !arg_fido2_cid) {
-                                name,
+                        r = attach_luks2_by_fido2(cd, name, until, arg_headless, arg_fido2_device, flags);
-                                friendly,
+                        if (IN_SET(r, -ENOTUNIQ, -ENXIO, -ENOENT))
-                                arg_fido2_device,
+                                return log_debug_errno(SYNTHETIC_ERRNO(EAGAIN),
-                                rp_id,
+                                                       "Automatic FIDO2 metadata discovery was not possible because missing or not unique, falling back to traditional unlocking.");
-                                cid, cid_size,
+
-                                key_file, arg_keyfile_size, arg_keyfile_offset,
+                } else {
-                                key_data, key_data_size,
+                        r = acquire_fido2_key(
-                                until,
+                                        name,
-                                arg_headless,
+                                        friendly,
-                                required,
+                                        arg_fido2_device,
-                                &decrypted_key, &decrypted_key_size,
+                                        rp_id,
-                                arg_ask_password_flags);
+                                        cid, cid_size,
-                if (r >= 0)
+                                        key_file, arg_keyfile_size, arg_keyfile_offset,
-                        break;
+                                        key_data, key_data_size,
+                                        until,
+                                        arg_headless,
+                                        required,
+                                        &decrypted_key, &decrypted_key_size,
+                                        arg_ask_password_flags);
+                        if (r >= 0)
+                                break;
+                }
+
                 if (r != -EAGAIN) /* EAGAIN means: token not found */
                         return r;
 
@@ -887,6 +996,32 @@ static int attach_luks_or_plain_or_bitlk_by_fido2(
         return 0;
 }
 
+static int attach_luks2_by_pkcs11(
+                struct crypt_device *cd,
+                const char *name,
+                const char *friendly_name,
+                usec_t until,
+                bool headless,
+                uint32_t flags) {
+
+        int r = -ENOTSUP;
+#if HAVE_LIBCRYPTSETUP_PLUGINS
+        if (!crypt_get_type(cd) || strcmp(crypt_get_type(cd), CRYPT_LUKS2))
+                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Automatic PKCS#11 metadata requires LUKS2 device.");
+
+        systemd_pkcs11_plugin_params params = {
+                .friendly_name = friendly_name,
+                .until = until,
+                .headless = headless
+        };
+
+        r = crypt_activate_by_token_pin(cd, name, "systemd-pkcs11", CRYPT_ANY_TOKEN, NULL, 0, &params, flags);
+        if (r > 0) /* returns unlocked keyslot id on success */
+                r = 0;
+#endif
+        return r;
+}
+
 static int attach_luks_or_plain_or_bitlk_by_pkcs11(
                 struct crypt_device *cd,
                 const char *name,
@@ -904,23 +1039,26 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
         _cleanup_(sd_event_unrefp) sd_event *event = NULL;
         _cleanup_free_ void *discovered_key = NULL;
         int keyslot = arg_key_slot, r;
-        const char *uri;
+        const char *uri = NULL;
+        bool use_libcryptsetup_plugin = libcryptsetup_plugins_support();
 
         assert(cd);
         assert(name);
         assert(arg_pkcs11_uri || arg_pkcs11_uri_auto);
 
         if (arg_pkcs11_uri_auto) {
-                r = find_pkcs11_auto_data(cd, &discovered_uri, &discovered_key, &discovered_key_size, &keyslot);
+                if (!use_libcryptsetup_plugin) {
-                if (IN_SET(r, -ENOTUNIQ, -ENXIO))
+                        r = find_pkcs11_auto_data(cd, &discovered_uri, &discovered_key, &discovered_key_size, &keyslot);
-                        return log_debug_errno(SYNTHETIC_ERRNO(EAGAIN),
+                        if (IN_SET(r, -ENOTUNIQ, -ENXIO))
-                                               "Automatic PKCS#11 metadata discovery was not possible because missing or not unique, falling back to traditional unlocking.");
+                                return log_debug_errno(SYNTHETIC_ERRNO(EAGAIN),
-                if (r < 0)
+                                                       "Automatic PKCS#11 metadata discovery was not possible because missing or not unique, falling back to traditional unlocking.");
-                        return r;
+                        if (r < 0)
+                                return r;
 
-                uri = discovered_uri;
+                        uri = discovered_uri;
-                key_data = discovered_key;
+                        key_data = discovered_key;
-                key_data_size = discovered_key_size;
+                        key_data_size = discovered_key_size;
+                }
         } else {
                 uri = arg_pkcs11_uri;
 
@@ -935,17 +1073,22 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
         for (;;) {
                 bool processed = false;
 
-                r = decrypt_pkcs11_key(
+                if (use_libcryptsetup_plugin && arg_pkcs11_uri_auto)
-                                name,
+                        r = attach_luks2_by_pkcs11(cd, name, friendly, until, arg_headless, flags);
-                                friendly,
+                else {
-                                uri,
+                        r = decrypt_pkcs11_key(
-                                key_file, arg_keyfile_size, arg_keyfile_offset,
+                                        name,
-                                key_data, key_data_size,
+                                        friendly,
-                                until,
+                                        uri,
-                                arg_headless,
+                                        key_file, arg_keyfile_size, arg_keyfile_offset,
-                                &decrypted_key, &decrypted_key_size);
+                                        key_data, key_data_size,
-                if (r >= 0)
+                                        until,
-                        break;
+                                        arg_headless,
+                                        &decrypted_key, &decrypted_key_size);
+                        if (r >= 0)
+                                break;
+                }
+
                 if (r != -EAGAIN) /* EAGAIN means: token not found */
                         return r;
 
@@ -985,6 +1128,7 @@ static int attach_luks_or_plain_or_bitlk_by_pkcs11(
 
                 log_debug("Got one or more potentially relevant udev events, rescanning PKCS#11...");
         }
+        assert(decrypted_key);
 
         if (pass_volume_key)
                 r = crypt_activate_by_volume_key(cd, name, decrypted_key, decrypted_key_size, flags);

src/nspawn/nspawn-patch-uid.c

@@ -22,7 +22,6 @@
 #if HAVE_ACL
 
 static int get_acl(int fd, const char *name, acl_type_t type, acl_t *ret) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
         acl_t acl;
 
         assert(fd >= 0);
@@ -35,14 +34,11 @@ static int get_acl(int fd, const char *name, acl_type_t type, acl_t *ret) {
                 if (child_fd < 0)
                         return -errno;
 
-                xsprintf(procfs_path, "/proc/self/fd/%i", child_fd);
+                acl = acl_get_file(FORMAT_PROC_FD_PATH(child_fd), type);
-                acl = acl_get_file(procfs_path, type);
         } else if (type == ACL_TYPE_ACCESS)
                 acl = acl_get_fd(fd);
-        else {
+        else
-                xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+                acl = acl_get_file(FORMAT_PROC_FD_PATH(fd), type);
-                acl = acl_get_file(procfs_path, type);
-        }
         if (!acl)
                 return -errno;
 
@@ -51,7 +47,6 @@ static int get_acl(int fd, const char *name, acl_type_t type, acl_t *ret) {
 }
 
 static int set_acl(int fd, const char *name, acl_type_t type, acl_t acl) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
         int r;
 
         assert(fd >= 0);
@@ -64,14 +59,11 @@ static int set_acl(int fd, const char *name, acl_type_t type, acl_t acl) {
                 if (child_fd < 0)
                         return -errno;
 
-                xsprintf(procfs_path, "/proc/self/fd/%i", child_fd);
+                r = acl_set_file(FORMAT_PROC_FD_PATH(child_fd), type, acl);
-                r = acl_set_file(procfs_path, type, acl);
         } else if (type == ACL_TYPE_ACCESS)
                 r = acl_set_fd(fd, acl);
-        else {
+        else
-                xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+                r = acl_set_file(FORMAT_PROC_FD_PATH(fd), type, acl);
-                r = acl_set_file(procfs_path, type, acl);
-        }
         if (r < 0)
                 return -errno;
 

src/partition/repart.c

@@ -1581,12 +1581,8 @@ static int context_load_partition_table(
          * /proc/self/fd/ magic path if we have an existing fd. Open the original file otherwise. */
         if (*backing_fd < 0)
                 r = fdisk_assign_device(c, node, arg_dry_run);
-        else {
+        else
-                char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
+                r = fdisk_assign_device(c, FORMAT_PROC_FD_PATH(*backing_fd), arg_dry_run);
-                xsprintf(procfs_path, "/proc/self/fd/%i", *backing_fd);
-
-                r = fdisk_assign_device(c, procfs_path, arg_dry_run);
-        }
         if (r == -EINVAL && arg_size_auto) {
                 struct stat st;
 
@@ -4593,7 +4589,6 @@ static int find_root(char **ret, int *ret_fd) {
 }
 
 static int resize_pt(int fd) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         _cleanup_(fdisk_unref_contextp) struct fdisk_context *c = NULL;
         int r;
 
@@ -4605,14 +4600,13 @@ static int resize_pt(int fd) {
         if (!c)
                 return log_oom();
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        r = fdisk_assign_device(c, FORMAT_PROC_FD_PATH(fd), 0);
-        r = fdisk_assign_device(c, procfs_path, 0);
         if (r < 0)
-                return log_error_errno(r, "Failed to open device '%s': %m", procfs_path);
+                return log_error_errno(r, "Failed to open device '%s': %m", FORMAT_PROC_FD_PATH(fd));
 
         r = fdisk_has_label(c);
         if (r < 0)
-                return log_error_errno(r, "Failed to determine whether disk '%s' has a disk label: %m", procfs_path);
+                return log_error_errno(r, "Failed to determine whether disk '%s' has a disk label: %m", FORMAT_PROC_FD_PATH(fd));
         if (r == 0) {
                 log_debug("Not resizing partition table, as there currently is none.");
                 return 0;

src/shared/chown-recursive.c

@@ -21,7 +21,6 @@ static int chown_one(
                 gid_t gid,
                 mode_t mask) {
 
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int) + 1];
         const char *n;
         int r;
 
@@ -30,11 +29,10 @@ static int chown_one(
 
         /* We change ACLs through the /proc/self/fd/%i path, so that we have a stable reference that works
          * with O_PATH. */
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
 
         /* Drop any ACL if there is one */
         FOREACH_STRING(n, "system.posix_acl_access", "system.posix_acl_default")
-                if (removexattr(procfs_path, n) < 0)
+                if (removexattr(FORMAT_PROC_FD_PATH(fd), n) < 0)
                         if (!IN_SET(errno, ENODATA, EOPNOTSUPP, ENOSYS, ENOTTY))
                                 return -errno;
 

src/shared/discover-image.c

@@ -305,7 +305,7 @@ static int image_make(
                 }
 
                 /* Get directory creation time (not available everywhere, but that's OK */
-                (void) fd_getcrtime(dfd, &crtime);
+                (void) fd_getcrtime(fd, &crtime);
 
                 /* If the IMMUTABLE bit is set, we consider the directory read-only. Since the ioctl is not
                  * supported everywhere we ignore failures. */

src/shared/mount-util.c

@@ -42,10 +42,7 @@ int mount_fd(const char *source,
              unsigned long mountflags,
              const void *data) {
 
-        char path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
+        if (mount(source, FORMAT_PROC_FD_PATH(target_fd), filesystemtype, mountflags, data) < 0) {
-
-        xsprintf(path, "/proc/self/fd/%i", target_fd);
-        if (mount(source, path, filesystemtype, mountflags, data) < 0) {
                 if (errno != ENOENT)
                         return -errno;
 
@@ -733,8 +730,7 @@ static int mount_in_namespace(
 
         _cleanup_close_pair_ int errno_pipe_fd[2] = { -1, -1 };
         _cleanup_close_ int self_mntns_fd = -1, mntns_fd = -1, root_fd = -1, pidns_fd = -1, chased_src_fd = -1;
-        char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p,
+        char mount_slave[] = "/tmp/propagate.XXXXXX", *mount_tmp, *mount_outside, *p;
-                chased_src[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         bool mount_slave_created = false, mount_slave_mounted = false,
                 mount_tmp_created = false, mount_tmp_mounted = false,
                 mount_outside_created = false, mount_outside_mounted = false;
@@ -767,9 +763,8 @@ static int mount_in_namespace(
         if (st.st_ino == self_mntns_st.st_ino && st.st_dev == self_mntns_st.st_dev)
                 return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Failed to activate bind mount in target, not running in a mount namespace");
 
-        /* One day, when bind mounting /proc/self/fd/n works across
+        /* One day, when bind mounting /proc/self/fd/n works across namespace boundaries we should rework
-         * namespace boundaries we should rework this logic to make
+         * this logic to make use of it... */
-         * use of it... */
 
         p = strjoina(propagate_path, "/");
         r = laccess(p, F_OK);
@@ -779,7 +774,6 @@ static int mount_in_namespace(
         r = chase_symlinks(src, NULL, CHASE_TRAIL_SLASH, NULL, &chased_src_fd);
         if (r < 0)
                 return log_debug_errno(r, "Failed to resolve source path of %s: %m", src);
-        xsprintf(chased_src, "/proc/self/fd/%i", chased_src_fd);
 
         if (fstat(chased_src_fd, &st) < 0)
                 return log_debug_errno(errno, "Failed to stat() resolved source path %s: %m", src);
@@ -824,9 +818,9 @@ static int mount_in_namespace(
         mount_tmp_created = true;
 
         if (is_image)
-                r = verity_dissect_and_mount(chased_src, mount_tmp, options, NULL, NULL, NULL);
+                r = verity_dissect_and_mount(FORMAT_PROC_FD_PATH(chased_src_fd), mount_tmp, options, NULL, NULL, NULL);
         else
-                r = mount_follow_verbose(LOG_DEBUG, chased_src, mount_tmp, NULL, MS_BIND, NULL);
+                r = mount_follow_verbose(LOG_DEBUG, FORMAT_PROC_FD_PATH(chased_src_fd), mount_tmp, NULL, MS_BIND, NULL);
         if (r < 0)
                 goto finish;
 

src/shared/pkcs11-util.c

@@ -175,6 +175,55 @@ char *pkcs11_token_model(const CK_TOKEN_INFO *token_info) {
         return t;
 }
 
+int pkcs11_token_login_by_pin(
+                CK_FUNCTION_LIST *m,
+                CK_SESSION_HANDLE session,
+                const CK_TOKEN_INFO *token_info,
+                const char *token_label,
+                const void *pin,
+                size_t pin_size) {
+
+        CK_RV rv;
+
+        assert(m);
+        assert(token_info);
+
+        if (FLAGS_SET(token_info->flags, CKF_PROTECTED_AUTHENTICATION_PATH)) {
+                rv = m->C_Login(session, CKU_USER, NULL, 0);
+                if (rv != CKR_OK)
+                        return log_error_errno(SYNTHETIC_ERRNO(EIO),
+                                               "Failed to log into security token '%s': %s", token_label, p11_kit_strerror(rv));
+
+                log_info("Successfully logged into security token '%s' via protected authentication path.", token_label);
+                return 0;
+        }
+
+        if (!FLAGS_SET(token_info->flags, CKF_LOGIN_REQUIRED)) {
+                log_info("No login into security token '%s' required.", token_label);
+                return 0;
+        }
+
+        if (!pin)
+                return -ENOANO;
+
+        rv = m->C_Login(session, CKU_USER, (CK_UTF8CHAR*) pin, pin_size);
+        if (rv == CKR_OK)  {
+                log_info("Successfully logged into security token '%s'.", token_label);
+                return 0;
+        }
+
+        if (rv == CKR_PIN_LOCKED)
+                return log_error_errno(SYNTHETIC_ERRNO(EPERM),
+                                       "PIN has been locked, please reset PIN of security token '%s'.", token_label);
+        if (!IN_SET(rv, CKR_PIN_INCORRECT, CKR_PIN_LEN_RANGE))
+                return log_error_errno(SYNTHETIC_ERRNO(EIO),
+                                       "Failed to log into security token '%s': %s", token_label, p11_kit_strerror(rv));
+
+        log_notice("PIN for token '%s' is incorrect, please try again.", token_label);
+
+        return -ENOLCK;
+}
+
 int pkcs11_token_login(
                 CK_FUNCTION_LIST *m,
                 CK_SESSION_HANDLE session,
@@ -209,24 +258,12 @@ int pkcs11_token_login(
         if (uri_result != P11_KIT_URI_OK)
                 return log_warning_errno(SYNTHETIC_ERRNO(EAGAIN), "Failed to format slot URI: %s", p11_kit_uri_message(uri_result));
 
-        if (FLAGS_SET(token_info->flags, CKF_PROTECTED_AUTHENTICATION_PATH)) {
+        r = pkcs11_token_login_by_pin(m, session, token_info, token_label, /* pin= */ NULL, 0);
-                rv = m->C_Login(session, CKU_USER, NULL, 0);
+        if (r == 0 && ret_used_pin)
-                if (rv != CKR_OK)
+                *ret_used_pin = NULL;
-                        return log_error_errno(SYNTHETIC_ERRNO(EIO),
-                                               "Failed to log into security token '%s': %s", token_label, p11_kit_strerror(rv));
 
-                log_info("Successfully logged into security token '%s' via protected authentication path.", token_label);
+        if (r != -ENOANO) /* pin required */
-                if (ret_used_pin)
+                return r;
-                        *ret_used_pin = NULL;
-                return 0;
-        }
-
-        if (!FLAGS_SET(token_info->flags, CKF_LOGIN_REQUIRED)) {
-                log_info("No login into security token '%s' required.", token_label);
-                if (ret_used_pin)
-                        *ret_used_pin = NULL;
-                return 0;
-        }
 
         token_uri_escaped = cescape(token_uri_string);
         if (!token_uri_escaped)
@@ -278,28 +315,19 @@ int pkcs11_token_login(
                 }
 
                 STRV_FOREACH(i, passwords) {
-                        rv = m->C_Login(session, CKU_USER, (CK_UTF8CHAR*) *i, strlen(*i));
+                        r = pkcs11_token_login_by_pin(m, session, token_info, token_label, *i, strlen(*i));
-                        if (rv == CKR_OK)  {
+                        if (r == 0 && ret_used_pin) {
+                                char *c;
 
-                                if (ret_used_pin) {
+                                c = strdup(*i);
-                                        char *c;
+                                if (!c)
+                                        return log_oom();
 
-                                        c = strdup(*i);
+                                *ret_used_pin = c;
-                                        if (!c)
-                                                return log_oom();
-
-                                        *ret_used_pin = c;
-                                }
-
-                                log_info("Successfully logged into security token '%s'.", token_label);
-                                return 0;
                         }
-                        if (rv == CKR_PIN_LOCKED)
+
-                                return log_error_errno(SYNTHETIC_ERRNO(EPERM),
+                        if (r != -ENOLCK)
-                                                       "PIN has been locked, please reset PIN of security token '%s'.", token_label);
+                                return r;
-                        if (!IN_SET(rv, CKR_PIN_INCORRECT, CKR_PIN_LEN_RANGE))
-                                return log_error_errno(SYNTHETIC_ERRNO(EIO),
-                                                       "Failed to log into security token '%s': %s", token_label, p11_kit_strerror(rv));
 
                         /* Referesh the token info, so that we can prompt knowing the new flags if they changed. */
                         rv = m->C_GetTokenInfo(slotid, &updated_token_info);
@@ -309,7 +337,6 @@ int pkcs11_token_login(
                                                        slotid, p11_kit_strerror(rv));
 
                         token_info = &updated_token_info;
-                        log_notice("PIN for token '%s' is incorrect, please try again.", token_label);
                 }
         }
 
@@ -1154,3 +1181,71 @@ int pkcs11_find_token_auto(char **ret) {
                                "PKCS#11 tokens not supported on this build.");
 #endif
 }
+
+#if HAVE_P11KIT
+void pkcs11_crypt_device_callback_data_release(pkcs11_crypt_device_callback_data *data) {
+        erase_and_free(data->decrypted_key);
+
+        if (data->free_encrypted_key)
+                free(data->encrypted_key);
+}
+
+int pkcs11_crypt_device_callback(
+                CK_FUNCTION_LIST *m,
+                CK_SESSION_HANDLE session,
+                CK_SLOT_ID slot_id,
+                const CK_SLOT_INFO *slot_info,
+                const CK_TOKEN_INFO *token_info,
+                P11KitUri *uri,
+                void *userdata) {
+
+        pkcs11_crypt_device_callback_data *data = userdata;
+        CK_OBJECT_HANDLE object;
+        int r;
+
+        assert(m);
+        assert(slot_info);
+        assert(token_info);
+        assert(uri);
+        assert(data);
+
+        /* Called for every token matching our URI */
+
+        r = pkcs11_token_login(
+                        m,
+                        session,
+                        slot_id,
+                        token_info,
+                        data->friendly_name,
+                        "drive-harddisk",
+                        "pkcs11-pin",
+                        "cryptsetup.pkcs11-pin",
+                        data->until,
+                        data->headless,
+                        NULL);
+        if (r < 0)
+                return r;
+
+        /* We are likely called during early boot, where entropy is scarce. Mix some data from the PKCS#11
+         * token, if it supports that. It should be cheap, given that we already are talking to it anyway and
+         * shouldn't hurt. */
+        (void) pkcs11_token_acquire_rng(m, session);
+
+        r = pkcs11_token_find_private_key(m, session, uri, &object);
+        if (r < 0)
+                return r;
+
+        r = pkcs11_token_decrypt_data(
+                        m,
+                        session,
+                        object,
+                        data->encrypted_key,
+                        data->encrypted_key_size,
+                        &data->decrypted_key,
+                        &data->decrypted_key_size);
+        if (r < 0)
+                return r;
+
+        return 0;
+}
+#endif

src/shared/pkcs11-util.h

@@ -30,6 +30,7 @@ char *pkcs11_token_label(const CK_TOKEN_INFO *token_info);
 char *pkcs11_token_manufacturer_id(const CK_TOKEN_INFO *token_info);
 char *pkcs11_token_model(const CK_TOKEN_INFO *token_info);
 
+int pkcs11_token_login_by_pin(CK_FUNCTION_LIST *m, CK_SESSION_HANDLE session, const CK_TOKEN_INFO *token_info, const char *token_label, const void *pin, size_t pin_size);
 int pkcs11_token_login(CK_FUNCTION_LIST *m, CK_SESSION_HANDLE session, CK_SLOT_ID slotid, const CK_TOKEN_INFO *token_info, const char *friendly_name, const char *icon_name, const char *key_name, const char *credential_name, usec_t until, bool headless, char **ret_used_pin);
 
 int pkcs11_token_find_x509_certificate(CK_FUNCTION_LIST *m, CK_SESSION_HANDLE session, P11KitUri *search_uri, CK_OBJECT_HANDLE *ret_object);
@@ -49,7 +50,35 @@ int pkcs11_find_token(const char *pkcs11_uri, pkcs11_find_token_callback_t callb
 int pkcs11_acquire_certificate(const char *uri, const char *askpw_friendly_name, const char *askpw_icon_name, X509 **ret_cert, char **ret_pin_used);
 #endif
 
+typedef struct {
+        const char *friendly_name;
+        usec_t until;
+        void *encrypted_key;
+        size_t encrypted_key_size;
+        void *decrypted_key;
+        size_t decrypted_key_size;
+        bool free_encrypted_key;
+        bool headless;
+} pkcs11_crypt_device_callback_data;
+
+void pkcs11_crypt_device_callback_data_release(pkcs11_crypt_device_callback_data *data);
+
+int pkcs11_crypt_device_callback(
+                CK_FUNCTION_LIST *m,
+                CK_SESSION_HANDLE session,
+                CK_SLOT_ID slot_id,
+                const CK_SLOT_INFO *slot_info,
+                const CK_TOKEN_INFO *token_info,
+                P11KitUri *uri,
+                void *userdata);
+
 #endif
 
+typedef struct {
+        const char *friendly_name;
+        usec_t until;
+        bool headless;
+} systemd_pkcs11_plugin_params;
+
 int pkcs11_list_tokens(void);
 int pkcs11_find_token_auto(char **ret);

src/shared/selinux-util.c

@@ -266,7 +266,6 @@ int mac_selinux_fix_container_fd(int fd, const char *path, const char *inside_pa
         assert(inside_path);
 
 #if HAVE_SELINUX
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         _cleanup_freecon_ char* fcon = NULL;
         struct stat st;
         int r;
@@ -292,8 +291,7 @@ int mac_selinux_fix_container_fd(int fd, const char *path, const char *inside_pa
                 goto fail;
         }
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        if (setfilecon_raw(FORMAT_PROC_FD_PATH(fd), fcon) < 0) {
-        if (setfilecon_raw(procfs_path, fcon) < 0) {
                 _cleanup_freecon_ char *oldcon = NULL;
 
                 /* If the FS doesn't support labels, then exit without warning */
@@ -307,7 +305,7 @@ int mac_selinux_fix_container_fd(int fd, const char *path, const char *inside_pa
                 r = -errno;
 
                 /* If the old label is identical to the new one, suppress any kind of error */
-                if (getfilecon_raw(procfs_path, &oldcon) >= 0 && streq(fcon, oldcon))
+                if (getfilecon_raw(FORMAT_PROC_FD_PATH(fd), &oldcon) >= 0 && streq(fcon, oldcon))
                         return 0;
 
                 goto fail;

src/shared/smack-util.c

@@ -121,8 +121,7 @@ int mac_smack_apply_pid(pid_t pid, const char *label) {
         return r;
 }
 
-static int smack_fix_fd(int fd , const char *abspath, LabelFixFlags flags) {
+static int smack_fix_fd(int fd, const char *abspath, LabelFixFlags flags) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         const char *label;
         struct stat st;
         int r;
@@ -153,8 +152,7 @@ static int smack_fix_fd(int fd , const char *abspath, LabelFixFlags flags) {
         else
                 return 0;
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+        if (setxattr(FORMAT_PROC_FD_PATH(fd), "security.SMACK64", label, strlen(label), 0) < 0) {
-        if (setxattr(procfs_path, "security.SMACK64", label, strlen(label), 0) < 0) {
                 _cleanup_free_ char *old_label = NULL;
 
                 r = -errno;
@@ -168,7 +166,7 @@ static int smack_fix_fd(int fd , const char *abspath, LabelFixFlags flags) {
                         return 0;
 
                 /* If the old label is identical to the new one, suppress any kind of error */
-                if (getxattr_malloc(procfs_path, "security.SMACK64", &old_label, false) >= 0 &&
+                if (getxattr_malloc(FORMAT_PROC_FD_PATH(fd), "security.SMACK64", &old_label, false) >= 0 &&
                     streq(old_label, label))
                         return 0;
 

src/systemctl/fuzz-systemctl-parse-argv.c

@@ -50,12 +50,8 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
         else
                 log_info(r == 0 ? "Done!" : "Action!");
 
-        if (orig_stdout_fd >= 0) {
+        if (orig_stdout_fd >= 0)
-                char path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
+                assert_se(freopen(FORMAT_PROC_FD_PATH(orig_stdout_fd), "w", stdout));
-
-                xsprintf(path, "/proc/self/fd/%d", orig_stdout_fd);
-                assert_se(freopen(path, "w", stdout));
-        }
 
         release_busses(); /* We open the bus for communication with logind.
                            * It needs to be closed to avoid apparent leaks. */

src/test/test-fd-util.c

@@ -278,6 +278,14 @@ static void test_close_all_fds(void) {
         log_open();
 }
 
+static void test_format_proc_fd_path(void) {
+        assert_se(streq_ptr(FORMAT_PROC_FD_PATH(0), "/proc/self/fd/0"));
+        assert_se(streq_ptr(FORMAT_PROC_FD_PATH(1), "/proc/self/fd/1"));
+        assert_se(streq_ptr(FORMAT_PROC_FD_PATH(2), "/proc/self/fd/2"));
+        assert_se(streq_ptr(FORMAT_PROC_FD_PATH(3), "/proc/self/fd/3"));
+        assert_se(streq_ptr(FORMAT_PROC_FD_PATH(2147483647), "/proc/self/fd/2147483647"));
+}
+
 int main(int argc, char *argv[]) {
 
         test_setup_logging(LOG_DEBUG);
@@ -290,6 +298,7 @@ int main(int argc, char *argv[]) {
         test_rearrange_stdio();
         test_read_nr_open();
         test_close_all_fds();
+        test_format_proc_fd_path();
 
         return 0;
 }

src/tmpfiles/tmpfiles.c

@@ -1058,18 +1058,15 @@ static int parse_xattrs_from_arg(Item *i) {
 }
 
 static int fd_set_xattrs(Item *i, int fd, const char *path, const struct stat *st) {
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         char **name, **value;
 
         assert(i);
         assert(fd >= 0);
         assert(path);
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
-
         STRV_FOREACH_PAIR(name, value, i->xattrs) {
                 log_debug("Setting extended attribute '%s=%s' on %s.", *name, *value, path);
-                if (setxattr(procfs_path, *name, *value, strlen(*value), 0) < 0)
+                if (setxattr(FORMAT_PROC_FD_PATH(fd), *name, *value, strlen(*value), 0) < 0)
                         return log_error_errno(errno, "Setting extended attribute %s=%s on %s failed: %m",
                                                *name, *value, path);
         }
@@ -1161,7 +1158,6 @@ static int path_set_acl(const char *path, const char *pretty, acl_type_t type, a
 static int fd_set_acls(Item *item, int fd, const char *path, const struct stat *st) {
         int r = 0;
 #if HAVE_ACL
-        char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
         struct stat stbuf;
 
         assert(item);
@@ -1184,14 +1180,12 @@ static int fd_set_acls(Item *item, int fd, const char *path, const struct stat *
                 return 0;
         }
 
-        xsprintf(procfs_path, "/proc/self/fd/%i", fd);
-
         if (item->acl_access)
-                r = path_set_acl(procfs_path, path, ACL_TYPE_ACCESS, item->acl_access, item->append_or_force);
+                r = path_set_acl(FORMAT_PROC_FD_PATH(fd), path, ACL_TYPE_ACCESS, item->acl_access, item->append_or_force);
 
         /* set only default acls to folders */
         if (r == 0 && item->acl_default && S_ISDIR(st->st_mode))
-                r = path_set_acl(procfs_path, path, ACL_TYPE_DEFAULT, item->acl_default, item->append_or_force);
+                r = path_set_acl(FORMAT_PROC_FD_PATH(fd), path, ACL_TYPE_DEFAULT, item->acl_default, item->append_or_force);
 
         if (ERRNO_IS_NOT_SUPPORTED(r)) {
                 log_debug_errno(r, "ACLs not supported by file system at %s", path);
@@ -1938,17 +1932,14 @@ static int item_do(Item *i, int fd, const char *path, fdaction_t action) {
         r = action(i, fd, path, &st);
 
         if (S_ISDIR(st.st_mode)) {
-                char procfs_path[STRLEN("/proc/self/fd/") + DECIMAL_STR_MAX(int)];
                 _cleanup_closedir_ DIR *d = NULL;
                 struct dirent *de;
 
-                /* The passed 'fd' was opened with O_PATH. We need to convert
+                /* The passed 'fd' was opened with O_PATH. We need to convert it into a 'regular' fd before
-                 * it into a 'regular' fd before reading the directory content. */
+                 * reading the directory content. */
-                xsprintf(procfs_path, "/proc/self/fd/%i", fd);
+                d = opendir(FORMAT_PROC_FD_PATH(fd));
-
-                d = opendir(procfs_path);
                 if (!d) {
-                        log_error_errno(errno, "Failed to opendir() '%s': %m", procfs_path);
+                        log_error_errno(errno, "Failed to opendir() '%s': %m", FORMAT_PROC_FD_PATH(fd));
                         if (r == 0)
                                 r = -errno;
                         goto finish;

test/TEST-13-NSPAWN-SMOKE/test.sh

@@ -11,7 +11,10 @@ TEST_NO_NSPAWN=1
 test_append_files() {
     (
         local workspace="${1:?}"
-        dracut_install busybox
+
+        # On openSUSE the static linked version of busybox is named "busybox-static".
+        busybox="$(type -P busybox-static || type -P busybox)"
+        inst_simple "$busybox" "$(dirname $busybox)/busybox"
 
         if selinuxenabled >/dev/null; then
             dracut_install selinuxenabled

test/create-busybox-container

@@ -7,18 +7,10 @@ set -o pipefail
 root="${1:?Usage $0 container-root}"
 mkdir -p "$root"
 mkdir "$root/bin"
-cp $(type -P busybox) "$root/bin"
 
-os_release=$(test -e /etc/os-release && echo /etc/os-release || echo /usr/lib/os-release)
+# On openSUSE the static linked version of busybox is named "busybox-static".
-ID_LIKE=$(awk -F= '$1=="ID_LIKE" { print $2 ;}' $os_release)
+busybox="$(type -P busybox-static || type -P busybox)"
-if [[ "$ID_LIKE" = *"suse"* ]]; then
+cp "$busybox" "$root/bin/busybox"
-    mkdir -p "$root/lib"
-    mkdir -p "$root/lib64"
-    for lib in $(find /lib*/ld*); do
-        [[ -d $root/$(dirname $lib) ]] || mkdir -p $root/$(dirname $lib)
-        cp $lib $root/$lib
-    done
-fi
 
 mkdir -p "$root/usr/lib"
 touch "$root/usr/lib/os-release"
@@ -30,6 +22,7 @@ ln -s busybox "$root/bin/ps"
 ln -s busybox "$root/bin/ip"
 ln -s busybox "$root/bin/seq"
 ln -s busybox "$root/bin/sleep"
+ln -s busybox "$root/bin/usleep"
 ln -s busybox "$root/bin/test"
 
 mkdir -p "$root/sbin"

test/test-functions

@@ -83,13 +83,11 @@ TOOLS_DIR="$SOURCE_DIR/tools"
 export TEST_BASE_DIR TEST_UNITS_DIR SOURCE_DIR TOOLS_DIR
 
 # note that find-build-dir.sh will return $BUILD_DIR if provided, else it will try to find it
-if ! BUILD_DIR="$("$TOOLS_DIR"/find-build-dir.sh)"; then
+if get_bool "${NO_BUILD:=}"; then
-    if get_bool "${NO_BUILD:=}"; then
+    BUILD_DIR="$SOURCE_DIR"
-        BUILD_DIR="$SOURCE_DIR"
+elif ! BUILD_DIR="$("$TOOLS_DIR"/find-build-dir.sh)"; then
-    else
+    echo "ERROR: no build found, please set BUILD_DIR or use NO_BUILD" >&2
-        echo "ERROR: no build found, please set BUILD_DIR or use NO_BUILD" >&2
+    exit 1
-        exit 1
-    fi
 fi
 
 PATH_TO_INIT="$ROOTLIBDIR/systemd"
@@ -667,6 +665,7 @@ setup_basic_environment() {
     install_fs_tools
     install_modules
     install_plymouth
+    install_haveged
     install_debug_tools
     install_ld_so_conf
     install_testuser
@@ -936,11 +935,52 @@ install_debian_systemd() {
     done < <(grep -E '^Package:' "${SOURCE_DIR}/debian/control" | cut -d ':' -f 2)
 }
 
+install_suse_systemd() {
+    local testsdir=/usr/lib/systemd/tests
+    local pkgs
+
+    dinfo "Install SUSE systemd"
+
+    pkgs=(
+        systemd
+        systemd-container
+        systemd-coredump
+        systemd-experimental
+        systemd-journal-remote
+        systemd-portable
+        udev
+    )
+
+    for p in "${pkgs[@]}"; do
+        rpm -q "$p" &>/dev/null || continue
+
+        ddebug "Install files from package $p"
+        while read -r f; do
+            [ -e "$f" ] || continue
+            [ -d "$f" ] && continue
+            inst "$f"
+        done < <(rpm -ql "$p")
+    done
+
+    # we only need testsdata dir as well as the unit tests (for
+    # TEST-02-UNITTESTS) in the image.
+    dinfo "Install unit tests and testdata directory"
+
+    mkdir -p "$initdir/$testsdir"
+    cp "$testsdir"/test-* "$initdir/$testsdir/"
+    cp -a "$testsdir/testdata" "$initdir/$testsdir/"
+
+    # On openSUSE, these dirs are not created at package install for now on.
+    mkdir -p "$initdir/var/log/journal/remote"
+}
+
 install_distro_systemd() {
     dinfo "Install distro systemd"
 
     if get_bool "$LOOKS_LIKE_DEBIAN"; then
         install_debian_systemd
+    elif get_bool "$LOOKS_LIKE_SUSE"; then
+        install_suse_systemd
     else
         dfatal "NO_BUILD not supported for this distro"
         exit 1
@@ -958,8 +998,6 @@ install_systemd() {
     # remove unneeded documentation
     rm -fr "$initdir"/usr/share/{man,doc}
 
-    get_bool "$LOOKS_LIKE_SUSE" && setup_suse
-
     # enable debug logging in PID1
     echo LogLevel=debug >>"$initdir/etc/systemd/system.conf"
     # store coredumps in journal
@@ -1390,6 +1428,16 @@ install_plymouth() {
     # fi
 }
 
+install_haveged() {
+    # If haveged is installed and probably included in initrd, it needs to be
+    # installed in the image too.
+    if [ -x /usr/sbin/haveged ]; then
+        dinfo "Install haveged files"
+        inst /usr/sbin/haveged
+        inst /usr/lib/systemd/system/haveged.service
+    fi
+}
+
 install_ld_so_conf() {
     dinfo "Install /etc/ld.so.conf*"
     cp -a /etc/ld.so.conf* "${initdir:?}/etc"
@@ -1551,7 +1599,7 @@ install_pam() {
         paths+=(/lib*/security)
     fi
 
-    for d in /etc/pam.d /etc/security /usr/lib/pam.d; do
+    for d in /etc/pam.d /etc/security /usr/{etc,lib}/pam.d; do
         [ -d "$d" ] && paths+=("$d")
     done
 
@@ -1565,6 +1613,13 @@ install_pam() {
 
     # set empty root password for easy debugging
     sed -i 's/^root:x:/root::/' "${initdir:?}/etc/passwd"
+
+    # And make sure pam_unix will accept it by making sure that
+    # the PAM module has the nullok option.
+    for d in /etc/pam.d /usr/{etc,lib}/pam.d; do
+        [ -d "$initdir/$d" ] || continue
+        sed -i '/^auth.*pam_unix.so/s/$/ nullok/' "$initdir/$d"/*
+    done
 }
 
 install_keymaps() {
@@ -2406,12 +2461,6 @@ instmods() {
     return 0
 }
 
-setup_suse() {
-    ln -fs ../usr/bin/systemctl "${initdir:?}/bin/"
-    ln -fs ../usr/lib/systemd "$initdir/lib/"
-    inst_simple "/usr/lib/systemd/system/haveged.service"
-}
-
 _umount_dir() {
     local mountpoint="${1:?}"
     if mountpoint -q "$mountpoint"; then

test/units/testsuite-13.sh

@@ -30,19 +30,13 @@ if unshare -U sh -c :; then
     is_user_ns_supported=yes
 fi
 
-SUSE_OPTS=()
-ID_LIKE=$(awk -F= '$1=="ID_LIKE" { print $2 ;}' /etc/os-release)
-if [[ "$ID_LIKE" = *"suse"* ]]; then
-    SUSE_OPTS+=(--bind /lib64 --bind /usr/lib64)
-fi
-
 function check_bind_tmp_path {
     # https://github.com/systemd/systemd/issues/4789
     local _root="/var/lib/machines/testsuite-13.bind-tmp-path"
     rm -rf "$_root"
     /usr/lib/systemd/tests/testdata/create-busybox-container "$_root"
     : >/tmp/bind
-    systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" --bind=/tmp/bind /bin/sh -c 'test -e /tmp/bind'
+    systemd-nspawn --register=no -D "$_root" --bind=/tmp/bind /bin/sh -c 'test -e /tmp/bind'
 }
 
 function check_norbind {
@@ -54,15 +48,15 @@ function check_norbind {
     mount -t tmpfs tmpfs /tmp/binddir/subdir
     echo -n "inner" >/tmp/binddir/subdir/file
     /usr/lib/systemd/tests/testdata/create-busybox-container "$_root"
-    systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" --bind=/tmp/binddir:/mnt:norbind /bin/sh -c 'CONTENT=$(cat /mnt/subdir/file); if [[ $CONTENT != "outer" ]]; then echo "*** unexpected content: $CONTENT"; return 1; fi'
+    systemd-nspawn --register=no -D "$_root" --bind=/tmp/binddir:/mnt:norbind /bin/sh -c 'CONTENT=$(cat /mnt/subdir/file); if [[ $CONTENT != "outer" ]]; then echo "*** unexpected content: $CONTENT"; return 1; fi'
 }
 
 function check_notification_socket {
     # https://github.com/systemd/systemd/issues/4944
     local _cmd='echo a | $(busybox which nc) -U -u -w 1 /run/host/notify'
     # /testsuite-13.nc-container is prepared by test.sh
-    systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D /testsuite-13.nc-container /bin/sh -x -c "$_cmd"
+    systemd-nspawn --register=no -D /testsuite-13.nc-container /bin/sh -x -c "$_cmd"
-    systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D /testsuite-13.nc-container -U /bin/sh -x -c "$_cmd"
+    systemd-nspawn --register=no -D /testsuite-13.nc-container -U /bin/sh -x -c "$_cmd"
 }
 
 function check_os_release {
@@ -84,7 +78,7 @@ if echo test >>/run/host/os-release; then exit 1; fi
         echo MARKER=1 >>/etc/os-release
     fi
 
-    systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D /testsuite-13.nc-container --bind="${_os_release_source}":/tmp/os-release /bin/sh -x -e -c "$_cmd"
+    systemd-nspawn --register=no -D /testsuite-13.nc-container --bind="${_os_release_source}":/tmp/os-release /bin/sh -x -e -c "$_cmd"
 
     if grep -q MARKER /etc/os-release; then
         rm /etc/os-release
@@ -93,7 +87,7 @@ if echo test >>/run/host/os-release; then exit 1; fi
 }
 
 function check_machinectl_bind {
-    local _cmd='for i in $(seq 1 20); do if test -f /tmp/marker; then exit 0; fi; sleep 0.5; done; exit 1;'
+    local _cmd='for i in $(seq 1 20); do if test -f /tmp/marker; then exit 0; fi; usleep 500000; done; exit 1;'
 
     cat >/run/systemd/system/nspawn_machinectl_bind.service <<EOF
 [Service]
@@ -138,16 +132,16 @@ function run {
     local _root="/var/lib/machines/testsuite-13.unified-$1-cgns-$2-api-vfs-writable-$3"
     rm -rf "$_root"
     /usr/lib/systemd/tests/testdata/create-busybox-container "$_root"
-    SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" -b
+    SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" -b
-    SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" --private-network -b
+    SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" --private-network -b
 
-    if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" -U -b; then
+    if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" -U -b; then
         [[ "$is_user_ns_supported" = "yes" && "$3" = "network" ]] && return 1
     else
         [[ "$is_user_ns_supported" = "no" && "$3" = "network" ]] && return 1
     fi
 
-    if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" --private-network -U -b; then
+    if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" --private-network -U -b; then
         [[ "$is_user_ns_supported" = "yes" && "$3" = "yes" ]] && return 1
     else
         [[ "$is_user_ns_supported" = "no" && "$3" = "yes" ]] && return 1
@@ -167,21 +161,21 @@ function run {
     # --network-namespace-path and network-related options cannot be used together
     for netopt in "${_net_opts[@]}"; do
         echo "$_netns_opt in combination with $netopt should fail"
-        if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" -b "$_netns_opt" "$netopt"; then
+        if SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" -b "$_netns_opt" "$netopt"; then
             echo >&2 "unexpected pass"
             return 1
         fi
     done
 
     # allow combination of --network-namespace-path and --private-network
-    if ! SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" -b "$_netns_opt" --private-network; then
+    if ! SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" -b "$_netns_opt" --private-network; then
         return 1
     fi
 
     # test --network-namespace-path works with a network namespace created by "ip netns"
     ip netns add nspawn_test
     _netns_opt="--network-namespace-path=/run/netns/nspawn_test"
-    SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn "${SUSE_OPTS[@]}" --register=no -D "$_root" "$_netns_opt" /bin/ip a | grep -v -E '^1: lo.*UP'
+    SYSTEMD_NSPAWN_UNIFIED_HIERARCHY="$1" SYSTEMD_NSPAWN_USE_CGNS="$2" SYSTEMD_NSPAWN_API_VFS_WRITABLE="$3" systemd-nspawn --register=no -D "$_root" "$_netns_opt" /bin/ip a | grep -v -E '^1: lo.*UP'
     local r=$?
     ip netns del nspawn_test