fanotify_get_response

Name:Wait for response to permission event

Proto:static int fanotify_get_response(struct fsnotify_group *group, struct fanotify_perm_event *event, struct fsnotify_iter_info *iter_info)

Type:int

Parameter:

Type	Parameter	Name
struct fsnotify_group *	group
struct fanotify_perm_event *	event
struct fsnotify_iter_info *	iter_info

93

pr_debug("%s: group=%p event=%p\n", __func__, group, event)

95

ret = wait_event_killable - sleep until a condition gets true*@wq_head: the waitqueue to wait on*@condition: a C expression for the event to wait for* The process is put to sleep (TASK_KILLABLE) until the*@condition evaluates to true or a signal is received.(access_waitq, state of the event == FAN_EVENT_ANSWERED)

98

If ret < 0 Then

99

spin_lock( & protect the notification_list )

101

If state of the event == FAN_EVENT_REPORTED Then

103

state of the event = FAN_EVENT_CANCELED

104

spin_unlock( & protect the notification_list )

105

Return ret

108

If state of the event == FAN_EVENT_INIT Then fsnotify_remove_queued_event(group, & fse)

115

spin_unlock( & protect the notification_list )

116

Go to out

121

Case & == Legit userspace responses to a _PERM event

122

ret = 0

123

Break

124

Case & == FAN_DENY

125

Default

126

ret = -EPERM

130

If userspace answer to the event & Bit mask to create audit record for result Then audit_fanotify(userspace answer to the event & ~Bit mask to create audit record for result )

133

pr_debug("%s: group=%p event=%p about to return ret=%d\n", __func__, group, event, ret)

135

out :

136

fsnotify_destroy_event(group, & fse)

138

Return ret

**Caller**
Name	Describe
fanotify_handle_event

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