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authorKees Cook <keescook@chromium.org>2014-05-21 15:02:11 -0700
committerKees Cook <keescook@chromium.org>2014-07-18 12:13:36 -0700
commitd78ab02c2c194257a03355fbb79eb721b381d105 (patch)
treeef515dffebcea6ec1fe1189dfc715c26ab2844f7
parentc04f9d61caa34fc83e3517e3092874c9607c19c3 (diff)
seccomp: create internal mode-setting function
In preparation for having other callers of the seccomp mode setting logic, split the prctl entry point away from the core logic that performs seccomp mode setting. Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Andy Lutomirski <luto@amacapital.net>
-rw-r--r--kernel/seccomp.c16
1 files changed, 14 insertions, 2 deletions
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index 301bbc24739c..afb916c7e890 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -473,7 +473,7 @@ long prctl_get_seccomp(void)
}
/**
- * prctl_set_seccomp: configures current->seccomp.mode
+ * seccomp_set_mode: internal function for setting seccomp mode
* @seccomp_mode: requested mode to use
* @filter: optional struct sock_fprog for use with SECCOMP_MODE_FILTER
*
@@ -486,7 +486,7 @@ long prctl_get_seccomp(void)
*
* Returns 0 on success or -EINVAL on failure.
*/
-long prctl_set_seccomp(unsigned long seccomp_mode, char __user *filter)
+static long seccomp_set_mode(unsigned long seccomp_mode, char __user *filter)
{
long ret = -EINVAL;
@@ -517,3 +517,15 @@ long prctl_set_seccomp(unsigned long seccomp_mode, char __user *filter)
out:
return ret;
}
+
+/**
+ * prctl_set_seccomp: configures current->seccomp.mode
+ * @seccomp_mode: requested mode to use
+ * @filter: optional struct sock_fprog for use with SECCOMP_MODE_FILTER
+ *
+ * Returns 0 on success or -EINVAL on failure.
+ */
+long prctl_set_seccomp(unsigned long seccomp_mode, char __user *filter)
+{
+ return seccomp_set_mode(seccomp_mode, filter);
+}