A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Add in_execve flag into task_struct.

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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 <[email protected]>
Signed-off-by: David Howells <[email protected]>
Signed-off-by: James Morris <[email protected]>
This commit is contained in:
Kentaro Takeda 2009-02-05 17:18:11 +09:00 • committed by James Morris
commit f9ce1f1cda
3 changed files with 8 additions and 0 deletions
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3
fs/compat.c
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@ -1402,6 +1402,7 @@ int compat_do_execve(char * filename,
retval = mutex_lock_interruptible(&current->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(&current->cred_exec_mutex);
acct_update_integrals(current);
free_bprm(bprm);
@ -1470,6 +1472,7 @@ out_file:
}
out_unlock:
current->in_execve = 0;
mutex_unlock(&current->cred_exec_mutex);
out_free: