From 8b47f4aca1bb689aa3862ae81985ce0743dd7709 Mon Sep 17 00:00:00 2001 From: deraadt Date: Mon, 30 Jul 2018 00:34:57 +0000 Subject: [PATCH] KNF --- sys/kern/kern_unveil.c | 30 ++++++++++++++++-------------- 1 file changed, 16 insertions(+), 14 deletions(-) diff --git a/sys/kern/kern_unveil.c b/sys/kern/kern_unveil.c index 0c87290f111..185ab03d03f 100644 --- a/sys/kern/kern_unveil.c +++ b/sys/kern/kern_unveil.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_unveil.c,v 1.7 2018/07/29 23:53:04 beck Exp $ */ +/* $OpenBSD: kern_unveil.c,v 1.8 2018/07/30 00:34:57 deraadt Exp $ */ /* * Copyright (c) 2017-2018 Bob Beck @@ -61,9 +61,11 @@ unvname_new(const char *name, size_t size, uint64_t flags) } void -unveil_free_traversed_vnodes(struct nameidata *ndp) { +unveil_free_traversed_vnodes(struct nameidata *ndp) +{ if (ndp->ni_tvpsize) { size_t i; + for (i = 0; i < ndp->ni_tvpend; i++) vrele(ndp->ni_tvp[i]); /* ref for being in list */ free(ndp->ni_tvp, M_PROC, ndp->ni_tvpsize * sizeof(struct vnode *)); @@ -73,7 +75,8 @@ unveil_free_traversed_vnodes(struct nameidata *ndp) { } void -unveil_save_traversed_vnode(struct nameidata *ndp, struct vnode *vp) { +unveil_save_traversed_vnode(struct nameidata *ndp, struct vnode *vp) +{ if (ndp->ni_tvpsize == 0) { ndp->ni_tvp = mallocarray(MAXPATHLEN, sizeof(struct vnode *), M_PROC, M_WAITOK); @@ -249,6 +252,7 @@ unveil_lookup(struct vnode *vp, struct proc *p) */ if (pr->ps_uvshrink) { size_t i = 0, j; + while (i < pr->ps_uvvcount) { if (uv[i].uv_vp == NULL) { pr->ps_uvncount -= unveil_delete_names(&uv[i]); @@ -278,11 +282,9 @@ unveil_lookup(struct vnode *vp, struct proc *p) if (pr->ps_uvpcwd) { printf("unveil: %s(%d): did not nuke cwd because %p != %p\n", p->p_p->ps_comm, p->p_p->ps_pid, vp, pr->ps_uvpcwd->uv_vp); - } - else + } else printf("unveil: %s(%d): cwd is null\n", p->p_p->ps_comm, p->p_p->ps_pid); - } #endif @@ -381,6 +383,7 @@ unveil_add_traversed_vnodes(struct proc *p, struct nameidata *ndp) */ if (ndp->ni_tvpsize) { size_t i; + for (i = 0; i < ndp->ni_tvpend; i++) { struct vnode *vp = ndp->ni_tvp[i]; if (unveil_lookup(vp, p) == NULL) { @@ -422,9 +425,9 @@ unveil_add(struct proc *p, struct nameidata *ndp, const char *cflags) directory_add = ndp->ni_vp != NULL && ndp->ni_vp->v_type == VDIR; if (directory_add) - vp=ndp->ni_vp; + vp = ndp->ni_vp; else - vp=ndp->ni_dvp; + vp = ndp->ni_dvp; KASSERT(vp->v_type == VDIR); vref(vp); @@ -477,7 +480,7 @@ unveil_add(struct proc *p, struct nameidata *ndp, const char *cflags) } } - } else { + } else { /* * New unveil involving this directory vnode. */ @@ -588,7 +591,7 @@ unveil_flagmatch(struct nameidata *ni, uint64_t flags) * unveil checking - for component directories in a namei lookup. */ void -unveil_check_component(struct proc *p, struct nameidata *ni, struct vnode *dp ) +unveil_check_component(struct proc *p, struct nameidata *ni, struct vnode *dp) { struct unveil *uv = NULL; @@ -609,8 +612,7 @@ unveil_check_component(struct proc *p, struct nameidata *ni, struct vnode *dp ) } } } - } - else + } else unveil_save_traversed_vnode(ni, dp); } @@ -691,8 +693,7 @@ done: ni->ni_unveil_match->uv_vp); #endif return (0); - } - else if (p->p_p->ps_uvpcwd) { + } else if (p->p_p->ps_uvpcwd) { ni->ni_unveil_match = p->p_p->ps_uvpcwd; #ifdef DEBUG_UNVEIL printf("unveil: %s(%d): used cwd unveil vnode from vnode %p\n", @@ -725,6 +726,7 @@ unveil_removevnode(struct vnode *vp) #endif LIST_FOREACH(pr, &allprocess, ps_list) { struct unveil * uv; + if ((uv = unveil_lookup(vp, pr->ps_mainproc)) != NULL) { uv->uv_vp = NULL; uv->uv_flags = 0; -- 2.20.1