函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\smack\smackfs.c Create Date:2022-07-27 20:58:46
Last Modify:2020-03-12 14:18:49 Copyright©Brick
首页 函数Tree
注解内核,赢得工具下载SCCTEnglish

函数名称：smk_write_relabel_self - write() for /smack/relabel-self*@file: file pointer, not actually used*@buf: where to get the data from*@count: bytes sent*@ppos: where to start - must be 0

函数原型：static ssize_t smk_write_relabel_self(struct file *file, const char __user *buf, size_t count, loff_t *ppos)

返回类型：ssize_t

参数：

类型参数名称
struct file *file
const char __user *buf
size_tcount
loff_t *ppos
2713  tsp等于smack_cred(current_cred - Access the current task's subjective credentials* Access the subjective credentials of the current task. RCU-safe,* since nobody else can modify it.())
2716  LIST_HEAD(list_tmp)
2721  如果非smack_privileged - are all privilege requirements met*@cap: The requested capability* Is the task privileged and allowed to be privileged* by the onlycap rule.* Returns true if the task is allowed to be privileged, false if it's not.则返回:负EPERM
2727  如果ppos不等于0则返回:负EINVAL
2730  data等于memdup_user_nul - duplicate memory region from user space and NUL-terminate*@src: source address in user space*@len: number of bytes to copy* Return: an ERR_PTR() on failure.
2731  如果是错误则返回:错误
2734  rc等于smk_parse_label_list - parse list of Smack labels, separated by spaces*@data: the string to parse*@private: destination list* Returns zero on success or error code, as appropriate
2735  释放内存
2737  如果非rc或rc恒等于负EINVAL且链表为空则
2738  smk_destroy_label_list - destroy a list of smack_known_list_elem*@head: header pointer of the list to destroy
2739  为栈加入第二个链表项
2740  返回:count
2743  smk_destroy_label_list - destroy a list of smack_known_list_elem*@head: header pointer of the list to destroy
2744  返回:rc