diff options
Diffstat (limited to 'lib/utils_devpath.c')
| -rw-r--r-- | lib/utils_devpath.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/lib/utils_devpath.c b/lib/utils_devpath.c index dc5a5bb..5e7e13e 100644 --- a/lib/utils_devpath.c +++ b/lib/utils_devpath.c @@ -3,8 +3,8 @@ * * Copyright (C) 2004 Jana Saout <jana@saout.de> * Copyright (C) 2004-2007 Clemens Fruhwirth <clemens@endorphin.org> - * Copyright (C) 2009-2023 Red Hat, Inc. All rights reserved. - * Copyright (C) 2009-2023 Milan Broz + * Copyright (C) 2009-2024 Red Hat, Inc. All rights reserved. + * Copyright (C) 2009-2024 Milan Broz * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -210,6 +210,24 @@ static int _path_get_uint64(const char *sysfs_path, uint64_t *value, const char return _read_uint64(path, value); } +int crypt_dev_get_partition_number(const char *dev_path) +{ + uint64_t partno; + struct stat st; + + if (stat(dev_path, &st) < 0) + return 0; + + if (!S_ISBLK(st.st_mode)) + return 0; + + if (!_sysfs_get_uint64(major(st.st_rdev), minor(st.st_rdev), + &partno, "partition")) + return -EINVAL; + + return (int)partno; +} + int crypt_dev_is_rotational(int major, int minor) { uint64_t val; @@ -220,6 +238,16 @@ int crypt_dev_is_rotational(int major, int minor) return val ? 1 : 0; } +int crypt_dev_is_dax(int major, int minor) +{ + uint64_t val; + + if (!_sysfs_get_uint64(major, minor, &val, "queue/dax")) + return 0; /* if failed, expect non-DAX device */ + + return val ? 1 : 0; +} + int crypt_dev_is_partition(const char *dev_path) { uint64_t val; @@ -253,6 +281,7 @@ uint64_t crypt_dev_partition_offset(const char *dev_path) &val, "start")) return 0; + /* coverity[tainted_data_return:FALSE] */ return val; } |