From b950c9e5120aea634345507fcd601df38a170120 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vzapolskiy@gmail.com>
Date: Wed, 21 Sep 2011 09:26:44 +0000
Subject: [PATCH] --- yaml --- r: 266197 b: refs/heads/master c:
 f786ecba4158880f8cdc0ebb93e7d78e6c125449 h: refs/heads/master i:   266195:
 50b6b3f035c67806e2ce2f1faf800b85202e376f v: v3

---
 [refs]                            |  2 +-
 trunk/drivers/connector/cn_proc.c | 26 ++++++++++++++++++++++++++
 trunk/include/linux/cn_proc.h     | 11 +++++++++++
 trunk/kernel/sys.c                |  1 +
 4 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index a95f66d807ad..9f0da4bafa71 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5dd17e08f333cde0fa11000792e33d8d39b5599f
+refs/heads/master: f786ecba4158880f8cdc0ebb93e7d78e6c125449
diff --git a/trunk/drivers/connector/cn_proc.c b/trunk/drivers/connector/cn_proc.c
index e55814bc0d06..77e1e6cd66ce 100644
--- a/trunk/drivers/connector/cn_proc.c
+++ b/trunk/drivers/connector/cn_proc.c
@@ -205,6 +205,32 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
 	cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
 }
 
+void proc_comm_connector(struct task_struct *task)
+{
+	struct cn_msg *msg;
+	struct proc_event *ev;
+	struct timespec ts;
+	__u8 buffer[CN_PROC_MSG_SIZE];
+
+	if (atomic_read(&proc_event_num_listeners) < 1)
+		return;
+
+	msg = (struct cn_msg *)buffer;
+	ev = (struct proc_event *)msg->data;
+	get_seq(&msg->seq, &ev->cpu);
+	ktime_get_ts(&ts); /* get high res monotonic timestamp */
+	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->what = PROC_EVENT_COMM;
+	ev->event_data.comm.process_pid  = task->pid;
+	ev->event_data.comm.process_tgid = task->tgid;
+	get_task_comm(ev->event_data.comm.comm, task);
+
+	memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
+	msg->ack = 0; /* not used */
+	msg->len = sizeof(*ev);
+	cn_netlink_send(msg, CN_IDX_PROC, GFP_KERNEL);
+}
+
 void proc_exit_connector(struct task_struct *task)
 {
 	struct cn_msg *msg;
diff --git a/trunk/include/linux/cn_proc.h b/trunk/include/linux/cn_proc.h
index 12c517b51ca2..d03612b196e1 100644
--- a/trunk/include/linux/cn_proc.h
+++ b/trunk/include/linux/cn_proc.h
@@ -54,6 +54,7 @@ struct proc_event {
 		PROC_EVENT_GID  = 0x00000040,
 		PROC_EVENT_SID  = 0x00000080,
 		PROC_EVENT_PTRACE = 0x00000100,
+		PROC_EVENT_COMM = 0x00000200,
 		/* "next" should be 0x00000400 */
 		/* "last" is the last process event: exit */
 		PROC_EVENT_EXIT = 0x80000000
@@ -103,6 +104,12 @@ struct proc_event {
 			__kernel_pid_t tracer_tgid;
 		} ptrace;
 
+		struct comm_proc_event {
+			__kernel_pid_t process_pid;
+			__kernel_pid_t process_tgid;
+			char           comm[16];
+		} comm;
+
 		struct exit_proc_event {
 			__kernel_pid_t process_pid;
 			__kernel_pid_t process_tgid;
@@ -118,6 +125,7 @@ void proc_exec_connector(struct task_struct *task);
 void proc_id_connector(struct task_struct *task, int which_id);
 void proc_sid_connector(struct task_struct *task);
 void proc_ptrace_connector(struct task_struct *task, int which_id);
+void proc_comm_connector(struct task_struct *task);
 void proc_exit_connector(struct task_struct *task);
 #else
 static inline void proc_fork_connector(struct task_struct *task)
@@ -133,6 +141,9 @@ static inline void proc_id_connector(struct task_struct *task,
 static inline void proc_sid_connector(struct task_struct *task)
 {}
 
+static inline void proc_comm_connector(struct task_struct *task)
+{}
+
 static inline void proc_ptrace_connector(struct task_struct *task,
 					 int ptrace_id)
 {}
diff --git a/trunk/kernel/sys.c b/trunk/kernel/sys.c
index 18ee1d2f6474..b3dfb76f8073 100644
--- a/trunk/kernel/sys.c
+++ b/trunk/kernel/sys.c
@@ -1759,6 +1759,7 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3,
 					      sizeof(me->comm) - 1) < 0)
 				return -EFAULT;
 			set_task_comm(me, comm);
+			proc_comm_connector(me);
 			return 0;
 		case PR_GET_NAME:
 			get_task_comm(comm, me);