override_creds

函数名称：verride_creds - Override the current process's subjective credentials*@new: The credentials to be assigned* Install a set of temporary override subjective credentials on the current* process, returning the old set for later reversion.

函数原型：const struct cred *override_creds(const struct cred *new)

返回类型：struct cred

参数：

类型	参数	名称
const struct cred *	new

543

old等于cred

545

kdebug("override_creds(%p{%d,%d})", new, atomic_read( & usage), read_cred_subscribers(new))

549

validate_creds(old)

550

validate_creds(new)

563

获得一组新的凭据引用

564

alter_cred_subscribers(new, 1)

565

cu_assign_pointer() - assign to RCU-protected pointer*@p: pointer to assign to*@v: value to assign (publish)* Assigns the specified value to the specified RCU-protected* pointer, ensuring that any concurrent RCU readers will see* any prior initialization(cred, new)

566

alter_cred_subscribers(old, - 1)

568

kdebug("override_creds() = %p{%d,%d}", old, atomic_read( & usage), read_cred_subscribers(old))

571

返回:old

**调用者**
名称	描述
do_acct_process
io_sq_thread
io_worker_handle_work
do_coredump
do_faccessat	access() needs to use the real uid/gid, not the effective uid/gid.* We do this by temporarily clearing all FS-related capabilities and* switching the fsuid/fsgid around to the real ones.

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告