#include <net/checksum.h>
#include <net/udp.h>
#include <asm/semaphore.h>
+#include <asm/atomic.h>
#include "avc.h"
#include "objsec.h"
#include "xfrm.h"
+/* Labeled XFRM instance counter */
+atomic_t selinux_xfrm_refcount = ATOMIC_INIT(0);
/*
* Returns true if an LSM/SELinux context
BUG_ON(!uctx);
err = selinux_xfrm_sec_ctx_alloc(&xp->security, uctx, 0);
+ if (err == 0)
+ atomic_inc(&selinux_xfrm_refcount);
+
return err;
}
struct xfrm_sec_ctx *ctx = xp->security;
int rc = 0;
- if (ctx)
+ if (ctx) {
rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
SECCLASS_ASSOCIATION,
ASSOCIATION__SETCONTEXT, NULL);
+ if (rc == 0)
+ atomic_dec(&selinux_xfrm_refcount);
+ }
return rc;
}
BUG_ON(!x);
err = selinux_xfrm_sec_ctx_alloc(&x->security, uctx, secid);
+ if (err == 0)
+ atomic_inc(&selinux_xfrm_refcount);
return err;
}
struct xfrm_sec_ctx *ctx = x->security;
int rc = 0;
- if (ctx)
+ if (ctx) {
rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
SECCLASS_ASSOCIATION,
ASSOCIATION__SETCONTEXT, NULL);
+ if (rc == 0)
+ atomic_dec(&selinux_xfrm_refcount);
+ }
return rc;
}