basic: split out blockdev-util.[ch] from util.h

With three functions it makes sense to split this out now.

1 files changed, 0 insertions, 167 deletions

diff --git a/src/basic/util.c b/src/basic/util.c
index 342c4bd09..19f189135 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -121,45 +121,6 @@ int socket_from_display(const char *display, char **path) {
 }
 
 #if 0 /// UNNEEDED by elogind
-int block_get_whole_disk(dev_t d, dev_t *ret) {
-        char p[SYS_BLOCK_PATH_MAX("/partition")];
-        _cleanup_free_ char *s = NULL;
-        int r;
-        unsigned n, m;
-
-        assert(ret);
-
-        /* If it has a queue this is good enough for us */
-        xsprintf_sys_block_path(p, "/queue", d);
-        if (access(p, F_OK) >= 0) {
-                *ret = d;
-                return 0;
-        }
-
-        /* If it is a partition find the originating device */
-        xsprintf_sys_block_path(p, "/partition", d);
-        if (access(p, F_OK) < 0)
-                return -ENOENT;
-
-        /* Get parent dev_t */
-        xsprintf_sys_block_path(p, "/../dev", d);
-        r = read_one_line_file(p, &s);
-        if (r < 0)
-                return r;
-
-        r = sscanf(s, "%u:%u", &m, &n);
-        if (r != 2)
-                return -EINVAL;
-
-        /* Only return this if it is really good enough for us. */
-        xsprintf_sys_block_path(p, "/queue", makedev(m, n));
-        if (access(p, F_OK) < 0)
-                return -ENOENT;
-
-        *ret = makedev(m, n);
-        return 0;
-}
-
 bool kexec_loaded(void) {
        _cleanup_free_ char *s = NULL;
 
@@ -602,132 +563,4 @@ int version(void) {
 }
 
 #if 0 /// UNNEEDED by elogind
-int get_block_device(const char *path, dev_t *dev) {
-        struct stat st;
-        struct statfs sfs;
-
-        assert(path);
-        assert(dev);
-
-        /* Get's the block device directly backing a file system. If
-         * the block device is encrypted, returns the device mapper
-         * block device. */
-
-        if (lstat(path, &st))
-                return -errno;
-
-        if (major(st.st_dev) != 0) {
-                *dev = st.st_dev;
-                return 1;
-        }
-
-        if (statfs(path, &sfs) < 0)
-                return -errno;
-
-        if (F_TYPE_EQUAL(sfs.f_type, BTRFS_SUPER_MAGIC))
-                return btrfs_get_block_device(path, dev);
-
-        return 0;
-}
-
-int get_block_device_harder(const char *path, dev_t *dev) {
-        _cleanup_closedir_ DIR *d = NULL;
-        _cleanup_free_ char *t = NULL;
-        char p[SYS_BLOCK_PATH_MAX("/slaves")];
-        struct dirent *de, *found = NULL;
-        const char *q;
-        unsigned maj, min;
-        dev_t dt;
-        int r;
-
-        assert(path);
-        assert(dev);
-
-        /* Gets the backing block device for a file system, and
-         * handles LUKS encrypted file systems, looking for its
-         * immediate parent, if there is one. */
-
-        r = get_block_device(path, &dt);
-        if (r <= 0)
-                return r;
-
-        xsprintf_sys_block_path(p, "/slaves", dt);
-        d = opendir(p);
-        if (!d) {
-                if (errno == ENOENT)
-                        goto fallback;
-
-                return -errno;
-        }
-
-        FOREACH_DIRENT_ALL(de, d, return -errno) {
-
-                if (dot_or_dot_dot(de->d_name))
-                        continue;
-
-                if (!IN_SET(de->d_type, DT_LNK, DT_UNKNOWN))
-                        continue;
-
-                if (found) {
-                        _cleanup_free_ char *u = NULL, *v = NULL, *a = NULL, *b = NULL;
-
-                        /* We found a device backed by multiple other devices. We don't really support automatic
-                         * discovery on such setups, with the exception of dm-verity partitions. In this case there are
-                         * two backing devices: the data partition and the hash partition. We are fine with such
-                         * setups, however, only if both partitions are on the same physical device. Hence, let's
-                         * verify this. */
-
-                        u = strjoin(p, "/", de->d_name, "/../dev");
-                        if (!u)
-                                return -ENOMEM;
-
-                        v = strjoin(p, "/", found->d_name, "/../dev");
-                        if (!v)
-                                return -ENOMEM;
-
-                        r = read_one_line_file(u, &a);
-                        if (r < 0) {
-                                log_debug_errno(r, "Failed to read %s: %m", u);
-                                goto fallback;
-                        }
-
-                        r = read_one_line_file(v, &b);
-                        if (r < 0) {
-                                log_debug_errno(r, "Failed to read %s: %m", v);
-                                goto fallback;
-                        }
-
-                        /* Check if the parent device is the same. If not, then the two backing devices are on
-                         * different physical devices, and we don't support that. */
-                        if (!streq(a, b))
-                                goto fallback;
-                }
-
-                found = de;
-        }
-
-        if (!found)
-                goto fallback;
-
-        q = strjoina(p, "/", found->d_name, "/dev");
-
-        r = read_one_line_file(q, &t);
-        if (r == -ENOENT)
-                goto fallback;
-        if (r < 0)
-                return r;
-
-        if (sscanf(t, "%u:%u", &maj, &min) != 2)
-                return -EINVAL;
-
-        if (maj == 0)
-                goto fallback;
-
-        *dev = makedev(maj, min);
-        return 1;
-
-fallback:
-        *dev = dt;
-        return 1;
-}
 #endif // 0