commit 9f46080c41d5f3f7c00b4e169ba4b0b2865258bf
author Matt Helsley <matthltc@us.ibm.com> Mon Nov 07 00:59:16 2005 -0800
committer Linus Torvalds <torvalds@g5.osdl.org> Mon Nov 07 07:53:35 2005 -0800
tree e2c029ef7f0cd5fb8ea9b78db3f7be5badaf59b1
parent 49364ce2534418462d681ad99e52e79a00b0f40b

[PATCH] Process Events Connector

This patch adds a connector that reports fork, exec, id change, and exit
events for all processes to userspace.  It replaces the fork_advisor patch
that ELSA is currently using.  Applications that may find these events
useful include accounting/auditing (e.g.  ELSA), system activity monitoring
(e.g.  top), security, and resource management (e.g.  CKRM).

Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/exit.c

diff --git a/kernel/exit.c b/kernel/exit.c
index 537394b..452a1d1 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -28,6 +28,7 @@
 #include <linux/cpuset.h>
 #include <linux/syscalls.h>
 #include <linux/signal.h>
+#include <linux/cn_proc.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -863,6 +864,7 @@
 		module_put(tsk->binfmt->module);
 
 	tsk->exit_code = code;
+	proc_exit_connector(tsk);
 	exit_notify(tsk);
 #ifdef CONFIG_NUMA
 	mpol_free(tsk->mempolicy);

kernel/fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index 8a06961..efac2c5 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -42,6 +42,7 @@
 #include <linux/profile.h>
 #include <linux/rmap.h>
 #include <linux/acct.h>
+#include <linux/cn_proc.h>
 
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -1143,6 +1144,7 @@
 			__get_cpu_var(process_counts)++;
 	}
 
+	proc_fork_connector(p);
 	if (!current->signal->tty && p->signal->tty)
 		p->signal->tty = NULL;
 

kernel/sys.c

diff --git a/kernel/sys.c b/kernel/sys.c
index 2fa1ed1..1e1f41b 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -28,6 +28,7 @@
 #include <linux/suspend.h>
 #include <linux/tty.h>
 #include <linux/signal.h>
+#include <linux/cn_proc.h>
 
 #include <linux/compat.h>
 #include <linux/syscalls.h>
@@ -623,6 +624,7 @@
 	current->egid = new_egid;
 	current->gid = new_rgid;
 	key_fsgid_changed(current);
+	proc_id_connector(current, PROC_EVENT_GID);
 	return 0;
 }
 
@@ -662,6 +664,7 @@
 		return -EPERM;
 
 	key_fsgid_changed(current);
+	proc_id_connector(current, PROC_EVENT_GID);
 	return 0;
 }
   
@@ -751,6 +754,7 @@
 	current->fsuid = current->euid;
 
 	key_fsuid_changed(current);
+	proc_id_connector(current, PROC_EVENT_UID);
 
 	return security_task_post_setuid(old_ruid, old_euid, old_suid, LSM_SETID_RE);
 }
@@ -798,6 +802,7 @@
 	current->suid = new_suid;
 
 	key_fsuid_changed(current);
+	proc_id_connector(current, PROC_EVENT_UID);
 
 	return security_task_post_setuid(old_ruid, old_euid, old_suid, LSM_SETID_ID);
 }
@@ -846,6 +851,7 @@
 		current->suid = suid;
 
 	key_fsuid_changed(current);
+	proc_id_connector(current, PROC_EVENT_UID);
 
 	return security_task_post_setuid(old_ruid, old_euid, old_suid, LSM_SETID_RES);
 }
@@ -898,6 +904,7 @@
 		current->sgid = sgid;
 
 	key_fsgid_changed(current);
+	proc_id_connector(current, PROC_EVENT_GID);
 	return 0;
 }
 
@@ -940,6 +947,7 @@
 	}
 
 	key_fsuid_changed(current);
+	proc_id_connector(current, PROC_EVENT_UID);
 
 	security_task_post_setuid(old_fsuid, (uid_t)-1, (uid_t)-1, LSM_SETID_FS);
 
@@ -968,6 +976,7 @@
 		}
 		current->fsgid = gid;
 		key_fsgid_changed(current);
+		proc_id_connector(current, PROC_EVENT_GID);
 	}
 	return old_fsgid;
 }