函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\apparmor\policy_ns.c Create Date:2022-07-27 21:43:11
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：__aa_create_ns

函数原型：static struct aa_ns *__aa_create_ns(struct aa_ns *parent, const char *name, struct dentry *dir)

返回类型：struct aa_ns

参数：

类型参数名称
struct aa_ns *parent
const char *name
struct dentry *dir
248  AA_BUG(!parent)
249  AA_BUG(!name)
250  AA_BUG(!是互斥锁)
252  ns等于alloc_ns - allocate, initialize and return a new namespace*@prefix: parent namespace name (MAYBE NULL)*@name: a preallocated name (NOT NULL)* Returns: refcounted namespace or NULL on failure.
253  如果非ns则返回:错误号
255  level等于level加1
256  mutex_lock_nested( & lock, level)
257  error等于Requires: @ns->lock held
258  如果error则
259  AA_ERROR("Failed to create interface for ns %s\n", name)
261  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.
262  aa_free_ns - free a profile namespace*@ns: the namespace to free (MAYBE NULL)* Requires: All references to the namespace must have been put, if the* namespace was referenced by a profile confining a task,
263  返回:错误号
265  parent等于aa_get_ns - increment references count on @ns*@ns: namespace to increment reference count of (MAYBE NULL)* Returns: pointer to @ns, if @ns is NULL returns NULL* Requires: @ns must be held with valid refcount when called
266  添加RCU保护项
268  aa_get_ns - increment references count on @ns*@ns: namespace to increment reference count of (MAYBE NULL)* Returns: pointer to @ns, if @ns is NULL returns NULL* Requires: @ns must be held with valid refcount when called
269  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.
271  返回:ns
调用者
名称描述
__aa_find_or_create_nsaa_create_ns - create an ns, fail if it already exists*@parent: the parent of the namespace being created*@name: the name of the namespace*@dir: if not null the dir to put the ns entries in* Returns: the a refcounted ns that has been add or an ERR_PTR
aa_prepare_nsaa_prepare_ns - find an existing or create a new namespace of @name*@parent: ns to treat as parent*@name: the namespace to find or add (NOT NULL)* Returns: refcounted namespace or PTR_ERR if failed to create one