diff options
Diffstat (limited to 'fs/fs_parser.c')
| -rw-r--r-- | fs/fs_parser.c | 38 |
1 files changed, 36 insertions, 2 deletions
diff --git a/fs/fs_parser.c b/fs/fs_parser.c index edb3712dcfa5..24727ec34e5a 100644 --- a/fs/fs_parser.c +++ b/fs/fs_parser.c @@ -83,8 +83,8 @@ static const struct fs_parameter_spec *fs_lookup_key( } /* - * fs_parse - Parse a filesystem configuration parameter - * @fc: The filesystem context to log errors through. + * __fs_parse - Parse a filesystem configuration parameter + * @log: The filesystem context to log errors through. * @desc: The parameter description to use. * @param: The parameter. * @result: Where to place the result of the parse @@ -308,6 +308,40 @@ int fs_param_is_fd(struct p_log *log, const struct fs_parameter_spec *p, } EXPORT_SYMBOL(fs_param_is_fd); +int fs_param_is_uid(struct p_log *log, const struct fs_parameter_spec *p, + struct fs_parameter *param, struct fs_parse_result *result) +{ + kuid_t uid; + + if (fs_param_is_u32(log, p, param, result) != 0) + return fs_param_bad_value(log, param); + + uid = make_kuid(current_user_ns(), result->uint_32); + if (!uid_valid(uid)) + return inval_plog(log, "Invalid uid '%s'", param->string); + + result->uid = uid; + return 0; +} +EXPORT_SYMBOL(fs_param_is_uid); + +int fs_param_is_gid(struct p_log *log, const struct fs_parameter_spec *p, + struct fs_parameter *param, struct fs_parse_result *result) +{ + kgid_t gid; + + if (fs_param_is_u32(log, p, param, result) != 0) + return fs_param_bad_value(log, param); + + gid = make_kgid(current_user_ns(), result->uint_32); + if (!gid_valid(gid)) + return inval_plog(log, "Invalid gid '%s'", param->string); + + result->gid = gid; + return 0; +} +EXPORT_SYMBOL(fs_param_is_gid); + int fs_param_is_blockdev(struct p_log *log, const struct fs_parameter_spec *p, struct fs_parameter *param, struct fs_parse_result *result) { |