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 <keesc...@chromium.org>
---
kernel/seccomp.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index b35c21503a36..8bbe20111222 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -465,7 +465,7 @@ 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
*
@@ -478,7 +478,7 @@ 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;
@@ -509,3 +509,18 @@ 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)
+{
+ long ret;
+
+ ret = seccomp_set_mode(seccomp_mode, filter);
+ return ret;
+}
--
1.7.9.5
--
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