From f9ce1f1cda8b73a36f47e424975a9dfa78b7840c Mon Sep 17 00:00:00 2001 From: Kentaro Takeda Date: Thu, 5 Feb 2009 17:18:11 +0900 Subject: Add in_execve flag into task_struct. This patch allows LSM modules to determine whether current process is in an execve operation or not so that they can behave differently while an execve operation is in progress. This patch is needed by TOMOYO. Please see another patch titled "LSM adapter functions." for backgrounds. Signed-off-by: Tetsuo Handa Signed-off-by: David Howells Signed-off-by: James Morris --- fs/compat.c | 3 +++ fs/exec.c | 3 +++ 2 files changed, 6 insertions(+) (limited to 'fs') diff --git a/fs/compat.c b/fs/compat.c index 65a070e..25589f8 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1402,6 +1402,7 @@ int compat_do_execve(char * filename, retval = mutex_lock_interruptible(¤t->cred_exec_mutex); if (retval < 0) goto out_free; + current->in_execve = 1; retval = -ENOMEM; bprm->cred = prepare_exec_creds(); @@ -1454,6 +1455,7 @@ int compat_do_execve(char * filename, goto out; /* execve succeeded */ + current->in_execve = 0; mutex_unlock(¤t->cred_exec_mutex); acct_update_integrals(current); free_bprm(bprm); @@ -1470,6 +1472,7 @@ out_file: } out_unlock: + current->in_execve = 0; mutex_unlock(¤t->cred_exec_mutex); out_free: diff --git a/fs/exec.c b/fs/exec.c index febfd8e..9881dc3 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1278,6 +1278,7 @@ int do_execve(char * filename, retval = mutex_lock_interruptible(¤t->cred_exec_mutex); if (retval < 0) goto out_free; + current->in_execve = 1; retval = -ENOMEM; bprm->cred = prepare_exec_creds(); @@ -1331,6 +1332,7 @@ int do_execve(char * filename, goto out; /* execve succeeded */ + current->in_execve = 0; mutex_unlock(¤t->cred_exec_mutex); acct_update_integrals(current); free_bprm(bprm); @@ -1349,6 +1351,7 @@ out_file: } out_unlock: + current->in_execve = 0; mutex_unlock(¤t->cred_exec_mutex); out_free: -- cgit v1.1