smk_write_ambient

函数名称：smk_write_ambient - write() for /smack/ambient*@file: file pointer, not actually used*@buf: where to get the data from*@count: bytes sent*@ppos: where to start* Returns number of bytes written or error code, as appropriate

函数原型：static ssize_t smk_write_ambient(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_t	count
loff_t *	ppos

1814

rc等于count

1816

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

1819

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.

1820

如果是错误则返回:错误

1823

skp等于smk_import_entry - import a label, return the list entry*@string: a text string that might be a Smack label*@len: the maximum size, or zero if it is NULL terminated

1824

如果是错误则

1825

rc等于错误

1826

转到:out

1829

mutex_lock( & smack_ambient_lock)

1831

oldambient等于smk_known

1832

This is the "ambient" label for network traffic.* If it isn't somehow marked, use this.* It can be reset via smackfs/ambient等于skp

1833

smk_unlbl_ambient - initialize the unlabeled domain*@oldambient: previous domain string

1835

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

1837

out :

1838

释放内存

1839

返回:rc

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