[Devel] [PATCH v2 13/27] proc connector: use generic event helper for ptrace event

[Stanislav Kinsburskiy]

Signed-off-by: Stanislav Kinsburskiy <skinsbur...@virtuozzo.com>
---
 drivers/connector/cn_proc.c |   31 +++++++++----------------------
 1 file changed, 9 insertions(+), 22 deletions(-)

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index 2ad2587..36a53fd 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -186,23 +186,9 @@ void proc_sid_connector(struct task_struct *task)
        proc_event_connector(task, PROC_EVENT_SID, 0, fill_sid_event);
 }
 
-void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
+static bool fill_ptrace_event(struct proc_event *ev, struct task_struct *task,
+                          int ptrace_id)
 {
-       struct cn_msg *msg;
-       struct proc_event *ev;
-       struct timespec ts;
-       __u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
-
-       if (atomic_read(&proc_event_num_listeners) < 1)
-               return;
-
-       msg = buffer_to_cn_msg(buffer);
-       ev = (struct proc_event *)msg->data;
-       memset(&ev->event_data, 0, sizeof(ev->event_data));
-       get_seq(&msg->seq, &ev->cpu);
-       ktime_get_ts(&ts); /* get high res monotonic timestamp */
-       ev->timestamp_ns = timespec_to_ns(&ts);
-       ev->what = PROC_EVENT_PTRACE;
        ev->event_data.ptrace.process_pid  = task->pid;
        ev->event_data.ptrace.process_tgid = task->tgid;
        if (ptrace_id == PTRACE_ATTACH) {
@@ -212,13 +198,14 @@ void proc_ptrace_connector(struct task_struct *task, int 
ptrace_id)
                ev->event_data.ptrace.tracer_pid  = 0;
                ev->event_data.ptrace.tracer_tgid = 0;
        } else
-               return;
+               return false;
+       return true;
+}
 
-       memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
-       msg->ack = 0; /* not used */
-       msg->len = sizeof(*ev);
-       msg->flags = 0; /* not used */
-       cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
+{
+       proc_event_connector(task, PROC_EVENT_PTRACE, ptrace_id,
+                            fill_ptrace_event);
 }
 
 void proc_comm_connector(struct task_struct *task)

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