connector: add parent pid and tgid to coredump and exit events
The intention is to get notified of process failures as soon
as possible, before a possible core dumping (which could be very long)
(e.g. in some process-manager). Coredump and exit process events
are perfect for such use cases (see 2b5faa4c55
"connector: Added
coredumping event to the process connector").
The problem is that for now the process-manager cannot know the parent
of a dying process using connectors. This could be useful if the
process-manager should monitor for failures only children of certain
parents, so we could filter the coredump and exit events by parent
process and/or thread ID.
Add parent pid and tgid to coredump and exit process connectors event
data.
Signed-off-by: Stefan Strogin <sstrogin@cisco.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
parent
e283de3a4f
commit
b086ff8725
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@ -262,6 +262,8 @@ void proc_coredump_connector(struct task_struct *task)
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ev->what = PROC_EVENT_COREDUMP;
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ev->event_data.coredump.process_pid = task->pid;
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ev->event_data.coredump.process_tgid = task->tgid;
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ev->event_data.coredump.parent_pid = task->real_parent->pid;
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ev->event_data.coredump.parent_tgid = task->real_parent->tgid;
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memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
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msg->ack = 0; /* not used */
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@ -288,6 +290,8 @@ void proc_exit_connector(struct task_struct *task)
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ev->event_data.exit.process_tgid = task->tgid;
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ev->event_data.exit.exit_code = task->exit_code;
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ev->event_data.exit.exit_signal = task->exit_signal;
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ev->event_data.exit.parent_pid = task->real_parent->pid;
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ev->event_data.exit.parent_tgid = task->real_parent->tgid;
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memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
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msg->ack = 0; /* not used */
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@ -116,12 +116,16 @@ struct proc_event {
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struct coredump_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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__kernel_pid_t parent_pid;
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__kernel_pid_t parent_tgid;
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} coredump;
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struct exit_proc_event {
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__kernel_pid_t process_pid;
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__kernel_pid_t process_tgid;
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__u32 exit_code, exit_signal;
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__kernel_pid_t parent_pid;
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__kernel_pid_t parent_tgid;
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} exit;
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} event_data;
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