Function report |
Source Code:security\yama\yama_lsm.c |
Create Date:2022-07-28 19:55:11 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Name:ask_is_descendant - walk up a process family tree looking for a match*@parent: the process to compare against while walking up from child*@child: the process to start from while looking upwards for parent
Proto:static int task_is_descendant(struct task_struct *parent, struct task_struct *child)
Type:int
Parameter:
Type | Parameter | Name |
---|---|---|
struct task_struct * | parent | |
struct task_struct * | child |
275 | rc = 0 |
282 | If Not thread_group_leader(parent) Then parent = fetch RCU-protected pointer for dereferencing(group_leader) |
284 | When process id > 0 cycle |
285 | If Not thread_group_leader(walker) Then walker = fetch RCU-protected pointer for dereferencing(group_leader) |
288 | rc = 1 |
289 | Break |
295 | Return rc |
Name | Describe |
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ptracer_exception_found | ptracer_exception_found - tracer registered as exception for this tracee*@tracer: the task_struct of the process attempting ptrace*@tracee: the task_struct of the process to be ptraced* Returns 1 if tracer has a ptracer exception ancestor for tracee. |
yama_ptrace_access_check | yama_ptrace_access_check - validate PTRACE_ATTACH calls*@child: task that current task is attempting to ptrace*@mode: ptrace attach mode* Returns 0 if following the ptrace is allowed, -ve on error. |
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