diff options
Diffstat (limited to 'security/selinux/xfrm.c')
| -rw-r--r-- | security/selinux/xfrm.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c index abe99d8..0e24df4 100644 --- a/security/selinux/xfrm.c +++ b/security/selinux/xfrm.c @@ -132,10 +132,7 @@ static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_us goto out; /* - * Does the subject have permission to set security or permission to - * do the relabel? - * Must be permitted to relabel from default socket type (process type) - * to specified context + * Does the subject have permission to set security context? */ rc = avc_has_perm(tsec->sid, ctx->ctx_sid, SECCLASS_ASSOCIATION, @@ -201,6 +198,23 @@ void selinux_xfrm_policy_free(struct xfrm_policy *xp) } /* + * LSM hook implementation that authorizes deletion of labeled policies. + */ +int selinux_xfrm_policy_delete(struct xfrm_policy *xp) +{ + struct task_security_struct *tsec = current->security; + struct xfrm_sec_ctx *ctx = xp->security; + int rc = 0; + + if (ctx) + rc = avc_has_perm(tsec->sid, ctx->ctx_sid, + SECCLASS_ASSOCIATION, + ASSOCIATION__SETCONTEXT, NULL); + + return rc; +} + +/* * LSM hook implementation that allocs and transfers sec_ctx spec to * xfrm_state. */ @@ -292,6 +306,23 @@ u32 selinux_socket_getpeer_dgram(struct sk_buff *skb) return SECSID_NULL; } + /* + * LSM hook implementation that authorizes deletion of labeled SAs. + */ +int selinux_xfrm_state_delete(struct xfrm_state *x) +{ + struct task_security_struct *tsec = current->security; + struct xfrm_sec_ctx *ctx = x->security; + int rc = 0; + + if (ctx) + rc = avc_has_perm(tsec->sid, ctx->ctx_sid, + SECCLASS_ASSOCIATION, + ASSOCIATION__SETCONTEXT, NULL); + + return rc; +} + /* * LSM hook that controls access to unlabelled packets. If * a xfrm_state is authorizable (defined by macro) then it was |