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Make similar changes to fo_stat() and fo_poll() as made earlier to

Browse Source 
fo_read() and fo_write(): explicitly use the cred argument to fo_poll()
as "active_cred" using the passed file descriptor's f_cred reference
to provide access to the file credential.  Add an active_cred
argument to fo_stat() so that implementers have access to the active
credential as well as the file credential.  Generally modify callers
of fo_stat() to pass in td->td_ucred rather than fp->f_cred, which
was redundantly provided via the fp argument.  This set of modifications
also permits threads to perform these operations on behalf of another
thread without modifying their credential.

Trickle this change down into fo_stat/poll() implementations:

- badfo_poll(), badfo_stat(): modify/add arguments.
- kqueue_poll(), kqueue_stat(): modify arguments.
- pipe_poll(), pipe_stat(): modify/add arguments, pass active_cred to
  MAC checks rather than td->td_ucred.
- soo_poll(), soo_stat(): modify/add arguments, pass fp->f_cred rather
  than cred to pru_sopoll() to maintain current semantics.
- sopoll(): moidfy arguments.
- vn_poll(), vn_statfile(): modify/add arguments, pass new arguments
  to vn_stat().  Pass active_cred to MAC and fp->f_cred to VOP_POLL()
  to maintian current semantics.
- vn_close(): rename cred to file_cred to reflect reality while I'm here.
- vn_stat(): Add active_cred and file_cred arguments to vn_stat()
  and consumers so that this distinction is maintained at the VFS
  as well as 'struct file' layer.  Pass active_cred instead of
  td->td_ucred to MAC and to VOP_GETATTR() to maintain current semantics.

- fifofs: modify the creation of a "filetemp" so that the file
  credential is properly initialized and can be used in the socket
  code if desired.  Pass ap->a_td->td_ucred as the active
  credential to soo_poll().  If we teach the vnop interface about
  the distinction between file and active credentials, we would use
  the active credential here.

Note that current inconsistent passing of active_cred vs. file_cred to
VOP's is maintained.  It's not clear why GETATTR would be authorized
using active_cred while POLL would be authorized using file_cred at
the file system level.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
This commit is contained in:
Robert Watson 2002-08-16 12:52:03 +00:00
parent 1e03ff6cf0
commit ea6027a8e1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=101983
16 changed files with 101 additions and 82 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
sys/alpha/osf1/osf1_misc.c
View File

@ -618,7 +618,7 @@ osf1_stat(td, uap)
SCARG(uap, path), td);
if ((error = namei(&nd)))
return (error);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -649,7 +649,7 @@ osf1_lstat(td, uap)
SCARG(uap, path), td);
if ((error = namei(&nd)))
return (error);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -674,7 +674,7 @@ osf1_fstat(td, uap)
if ((error = fget(td, uap->fd, &fp)) != 0)
return (error);
error = fo_stat(fp, &ub, td);
error = fo_stat(fp, &ub, td->td_ucred, td);
fdrop(fp, td);
cvtstat2osf1(&ub, &oub);
if (error == 0)

12
sys/compat/linux/linux_stats.c
View File

@ -112,7 +112,7 @@ linux_newstat(struct thread *td, struct linux_newstat_args *args)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &buf, td);
error = vn_stat(nd.ni_vp, &buf, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -143,7 +143,7 @@ linux_newlstat(struct thread *td, struct linux_newlstat_args *args)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -166,7 +166,7 @@ linux_newfstat(struct thread *td, struct linux_newfstat_args *args)
if ((error = fget(td, args->fd, &fp)) != 0)
return (error);
error = fo_stat(fp, &buf, td);
error = fo_stat(fp, &buf, td->td_ucred, td);
fdrop(fp, td);
if (!error)
error = newstat_copyout(&buf, args->buf);
@ -433,7 +433,7 @@ linux_stat64(struct thread *td, struct linux_stat64_args *args)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &buf, td);
error = vn_stat(nd.ni_vp, &buf, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -464,7 +464,7 @@ linux_lstat64(struct thread *td, struct linux_lstat64_args *args)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -490,7 +490,7 @@ linux_fstat64(struct thread *td, struct linux_fstat64_args *args)
(fp = fdp->fd_ofiles[args->fd]) == NULL)
return (EBADF);
error = fo_stat(fp, &buf, td);
error = fo_stat(fp, &buf, td->td_ucred, td);
if (!error)
error = stat64_copyout(&buf, args->statbuf);

2
sys/fs/fdescfs/fdesc_vnops.c
View File

@ -302,7 +302,7 @@ fdesc_getattr(ap)
return (error);
bzero(&stb, sizeof(stb));
error = fo_stat(fp, &stb, ap->a_td);
error = fo_stat(fp, &stb, ap->a_td->td_ucred, ap->a_td);
fdrop(fp, ap->a_td);
if (error == 0) {
VATTR_NULL(vap);

5
sys/fs/fifofs/fifo_vnops.c
View File

@ -474,9 +474,10 @@ fifo_poll(ap)
}
filetmp.f_data = (caddr_t)ap->a_vp->v_fifoinfo->fi_readsock;
filetmp.f_cred = ap->a_cred;
if (filetmp.f_data)
revents |= soo_poll(&filetmp, events, ap->a_cred,
ap->a_td);
revents |= soo_poll(&filetmp, events,
ap->a_td->td_ucred, ap->a_td);
/* Reverse the above conversion. */
if ((revents & POLLINIGNEOF) &&

18
sys/kern/kern_descrip.c
View File

@ -103,9 +103,10 @@ static int badfo_readwrite(struct file *fp, struct uio *uio,
static int badfo_ioctl(struct file *fp, u_long com, void *data,
struct thread *td);
static int badfo_poll(struct file *fp, int events,
struct ucred *cred, struct thread *td);
struct ucred *active_cred, struct thread *td);
static int badfo_kqfilter(struct file *fp, struct knote *kn);
static int badfo_stat(struct file *fp, struct stat *sb, struct thread *td);
static int badfo_stat(struct file *fp, struct stat *sb,
struct ucred *active_cred, struct thread *td);
static int badfo_close(struct file *fp, struct thread *td);
/*
@ -831,7 +832,7 @@ ofstat(td, uap)
mtx_lock(&Giant);
if ((error = fget(td, uap->fd, &fp)) != 0)
goto done2;
error = fo_stat(fp, &ub, td);
error = fo_stat(fp, &ub, td->td_ucred, td);
if (error == 0) {
cvtstat(&ub, &oub);
error = copyout(&oub, uap->sb, sizeof (oub));
@ -868,7 +869,7 @@ fstat(td, uap)
mtx_lock(&Giant);
if ((error = fget(td, uap->fd, &fp)) != 0)
goto done2;
error = fo_stat(fp, &ub, td);
error = fo_stat(fp, &ub, td->td_ucred, td);
if (error == 0)
error = copyout(&ub, uap->sb, sizeof (ub));
fdrop(fp, td);
@ -903,7 +904,7 @@ nfstat(td, uap)
mtx_lock(&Giant);
if ((error = fget(td, uap->fd, &fp)) != 0)
goto done2;
error = fo_stat(fp, &ub, td);
error = fo_stat(fp, &ub, td->td_ucred, td);
if (error == 0) {
cvtnstat(&ub, &nub);
error = copyout(&nub, uap->sb, sizeof (nub));
@ -2169,10 +2170,10 @@ badfo_ioctl(fp, com, data, td)
}
static int
badfo_poll(fp, events, cred, td)
badfo_poll(fp, events, active_cred, td)
struct file *fp;
int events;
struct ucred *cred;
struct ucred *active_cred;
struct thread *td;
{
@ -2189,9 +2190,10 @@ badfo_kqfilter(fp, kn)
}
static int
badfo_stat(fp, sb, td)
badfo_stat(fp, sb, active_cred, td)
struct file *fp;
struct stat *sb;
struct ucred *active_cred;
struct thread *td;
{

13
sys/kern/kern_event.c
View File

@ -62,10 +62,11 @@ static int kqueue_write(struct file *fp, struct uio *uio,
struct ucred *active_cred, int flags, struct thread *td);
static int kqueue_ioctl(struct file *fp, u_long com, void *data,
struct thread *td);
static int kqueue_poll(struct file *fp, int events, struct ucred *cred,
struct thread *td);
static int kqueue_poll(struct file *fp, int events,
struct ucred *active_cred, struct thread *td);
static int kqueue_kqfilter(struct file *fp, struct knote *kn);
static int kqueue_stat(struct file *fp, struct stat *st, struct thread *td);
static int kqueue_stat(struct file *fp, struct stat *st,
struct ucred *active_cred, struct thread *td);
static int kqueue_close(struct file *fp, struct thread *td);
static void kqueue_wakeup(struct kqueue *kq);
@ -800,7 +801,8 @@ kqueue_ioctl(struct file *fp, u_long com, void *data, struct thread *td)
/*ARGSUSED*/
static int
kqueue_poll(struct file *fp, int events, struct ucred *cred, struct thread *td)
kqueue_poll(struct file *fp, int events, struct ucred *active_cred,
struct thread *td)
{
struct kqueue *kq;
int revents = 0;
@ -821,7 +823,8 @@ kqueue_poll(struct file *fp, int events, struct ucred *cred, struct thread *td)
/*ARGSUSED*/
static int
kqueue_stat(struct file *fp, struct stat *st, struct thread *td)
kqueue_stat(struct file *fp, struct stat *st, struct ucred *active_cred,
struct thread *td)
{
struct kqueue *kq;

5
sys/kern/sys_generic.c
View File

@ -899,7 +899,8 @@ selscan(td, ibits, obits, nfd)
FILEDESC_UNLOCK(fdp);
return (EBADF);
}
if (fo_poll(fp, flag[msk], fp->f_cred, td)) {
if (fo_poll(fp, flag[msk], td->td_ucred,
td)) {
obits[msk][(fd)/NFDBITS] |=
((fd_mask)1 << ((fd) % NFDBITS));
n++;
@ -1072,7 +1073,7 @@ pollscan(td, fds, nfd)
* POLLERR if appropriate.
*/
fds->revents = fo_poll(fp, fds->events,
fp->f_cred, td);
td->td_ucred, td);
if (fds->revents != 0)
n++;
}

18
sys/kern/sys_pipe.c
View File

@ -99,12 +99,13 @@ static int pipe_read(struct file *fp, struct uio *uio,
static int pipe_write(struct file *fp, struct uio *uio,
struct ucred *active_cred, int flags, struct thread *td);
static int pipe_close(struct file *fp, struct thread *td);
static int pipe_poll(struct file *fp, int events, struct ucred *cred,
static int pipe_poll(struct file *fp, int events, struct ucred *active_cred,
struct thread *td);
static int pipe_kqfilter(struct file *fp, struct knote *kn);
static int pipe_stat(struct file *fp, struct stat *sb, struct thread *td);
static int pipe_stat(struct file *fp, struct stat *sb,
struct ucred *active_cred, struct thread *td);
static int pipe_ioctl(struct file *fp, u_long cmd, void *data,
struct thread *td);
struct thread *td);
static struct fileops pipeops = {
pipe_read, pipe_write, pipe_ioctl, pipe_poll, pipe_kqfilter,
@ -1215,10 +1216,10 @@ pipe_ioctl(fp, cmd, data, td)
}
int
pipe_poll(fp, events, cred, td)
pipe_poll(fp, events, active_cred, td)
struct file *fp;
int events;
struct ucred *cred;
struct ucred *active_cred;
struct thread *td;
{
struct pipe *rpipe = (struct pipe *)fp->f_data;
@ -1231,7 +1232,7 @@ pipe_poll(fp, events, cred, td)
wpipe = rpipe->pipe_peer;
PIPE_LOCK(rpipe);
#ifdef MAC
error = mac_check_pipe_op(td->td_ucred, rpipe, MAC_OP_PIPE_POLL);
error = mac_check_pipe_op(active_cred, rpipe, MAC_OP_PIPE_POLL);
if (error)
goto locked_error;
#endif
@ -1276,9 +1277,10 @@ pipe_poll(fp, events, cred, td)
* be a natural race.
*/
static int
pipe_stat(fp, ub, td)
pipe_stat(fp, ub, active_cred, td)
struct file *fp;
struct stat *ub;
struct ucred *active_cred;
struct thread *td;
{
struct pipe *pipe = (struct pipe *)fp->f_data;
@ -1286,7 +1288,7 @@ pipe_stat(fp, ub, td)
int error;
/* XXXMAC: Pipe should be locked for this check. */
error = mac_check_pipe_op(td->td_ucred, pipe, MAC_OP_PIPE_STAT);
error = mac_check_pipe_op(active_cred, pipe, MAC_OP_PIPE_STAT);
if (error)
return (error);
#endif

10
sys/kern/sys_socket.c
View File

@ -157,20 +157,22 @@ soo_ioctl(fp, cmd, data, td)
}
int
soo_poll(fp, events, cred, td)
soo_poll(fp, events, active_cred, td)
struct file *fp;
int events;
struct ucred *cred;
struct ucred *active_cred;
struct thread *td;
{
struct socket *so = (struct socket *)fp->f_data;
return so->so_proto->pr_usrreqs->pru_sopoll(so, events, cred, td);
return so->so_proto->pr_usrreqs->pru_sopoll(so, events,
fp->f_cred, td);
}
int
soo_stat(fp, ub, td)
soo_stat(fp, ub, active_cred, td)
struct file *fp;
struct stat *ub;
struct ucred *active_cred;
struct thread *td;
{
struct socket *so = (struct socket *)fp->f_data;

3
sys/kern/uipc_socket.c
View File

@ -1687,7 +1687,8 @@ sohasoutofband(so)
}
int
sopoll(struct socket *so, int events, struct ucred *cred, struct thread *td)
sopoll(struct socket *so, int events, struct ucred *active_cred,
struct thread *td)
{
int revents = 0;
int s = splnet();

14
sys/kern/vfs_extattr.c
View File

@ -1435,7 +1435,7 @@ ostat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -1473,7 +1473,7 @@ olstat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
vp = nd.ni_vp;
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(vp);
if (error)
@ -1544,7 +1544,7 @@ stat(td, uap)
#endif
if ((error = namei(&nd)) != 0)
return (error);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(nd.ni_vp);
if (error)
@ -1581,7 +1581,7 @@ lstat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
vp = nd.ni_vp;
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(vp);
if (error)
@ -1646,7 +1646,7 @@ nstat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -1685,7 +1685,7 @@ nlstat(td, uap)
return (error);
vp = nd.ni_vp;
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
vput(vp);
if (error)
return (error);
@ -3478,7 +3478,7 @@ fhstat(td, uap)
return (ESTALE);
if ((error = VFS_FHTOVP(mp, &fh.fh_fid, &vp)))
return (error);
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
vput(vp);
if (error)
return (error);

14
sys/kern/vfs_syscalls.c
View File

@ -1435,7 +1435,7 @@ ostat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -1473,7 +1473,7 @@ olstat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
vp = nd.ni_vp;
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(vp);
if (error)
@ -1544,7 +1544,7 @@ stat(td, uap)
#endif
if ((error = namei(&nd)) != 0)
return (error);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(nd.ni_vp);
if (error)
@ -1581,7 +1581,7 @@ lstat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
vp = nd.ni_vp;
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
NDFREE(&nd, NDF_ONLY_PNBUF);
vput(vp);
if (error)
@ -1646,7 +1646,7 @@ nstat(td, uap)
if ((error = namei(&nd)) != 0)
return (error);
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(nd.ni_vp, &sb, td);
error = vn_stat(nd.ni_vp, &sb, td->td_ucred, NOCRED, td);
vput(nd.ni_vp);
if (error)
return (error);
@ -1685,7 +1685,7 @@ nlstat(td, uap)
return (error);
vp = nd.ni_vp;
NDFREE(&nd, NDF_ONLY_PNBUF);
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
vput(vp);
if (error)
return (error);
@ -3478,7 +3478,7 @@ fhstat(td, uap)
return (ESTALE);
if ((error = VFS_FHTOVP(mp, &fh.fh_fid, &vp)))
return (error);
error = vn_stat(vp, &sb, td);
error = vn_stat(vp, &sb, td->td_ucred, NOCRED, td);
vput(vp);
if (error)
return (error);

32
sys/kern/vfs_vnops.c
View File

@ -68,10 +68,11 @@ static int vn_ioctl(struct file *fp, u_long com, void *data,
struct thread *td);
static int vn_read(struct file *fp, struct uio *uio,
struct ucred *active_cred, int flags, struct thread *td);
static int vn_poll(struct file *fp, int events, struct ucred *cred,
static int vn_poll(struct file *fp, int events, struct ucred *active_cred,
struct thread *td);
static int vn_kqfilter(struct file *fp, struct knote *kn);
static int vn_statfile(struct file *fp, struct stat *sb, struct thread *td);
static int vn_statfile(struct file *fp, struct stat *sb,
struct ucred *active_cred, struct thread *td);
static int vn_write(struct file *fp, struct uio *uio,
struct ucred *active_cred, int flags, struct thread *td);
@ -295,17 +296,17 @@ vn_writechk(vp)
* Vnode close call
*/
int
vn_close(vp, flags, cred, td)
vn_close(vp, flags, file_cred, td)
register struct vnode *vp;
int flags;
struct ucred *cred;
struct ucred *file_cred;
struct thread *td;
{
int error;
if (flags & FWRITE)
vp->v_writecount--;
error = VOP_CLOSE(vp, flags, cred, td);
error = VOP_CLOSE(vp, flags, file_cred, td);
/*
* XXX - In certain instances VOP_CLOSE has to do the vrele
* itself. If the vrele has been done, it will return EAGAIN
@ -578,16 +579,17 @@ vn_write(fp, uio, active_cred, flags, td)
* File table vnode stat routine.
*/
static int
vn_statfile(fp, sb, td)
vn_statfile(fp, sb, active_cred, td)
struct file *fp;
struct stat *sb;
struct ucred *active_cred;
struct thread *td;
{
struct vnode *vp = (struct vnode *)fp->f_data;
int error;
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = vn_stat(vp, sb, td);
error = vn_stat(vp, sb, active_cred, fp->f_cred, td);
VOP_UNLOCK(vp, 0, td);
return (error);
@ -597,9 +599,11 @@ vn_statfile(fp, sb, td)
* Stat a vnode; implementation for the stat syscall
*/
int
vn_stat(vp, sb, td)
vn_stat(vp, sb, active_cred, file_cred, td)
struct vnode *vp;
register struct stat *sb;
struct ucred *active_cred;
struct ucred *file_cred;
struct thread *td;
{
struct vattr vattr;
@ -608,13 +612,13 @@ vn_stat(vp, sb, td)
u_short mode;
#ifdef MAC
error = mac_check_vnode_stat(td->td_ucred, vp);
error = mac_check_vnode_stat(active_cred, vp);
if (error)
return (error);
#endif
vap = &vattr;
error = VOP_GETATTR(vp, vap, td->td_ucred, td);
error = VOP_GETATTR(vp, vap, active_cred, td);
if (error)
return (error);
@ -788,10 +792,10 @@ vn_ioctl(fp, com, data, td)
* File table vnode poll routine.
*/
static int
vn_poll(fp, events, cred, td)
vn_poll(fp, events, active_cred, td)
struct file *fp;
int events;
struct ucred *cred;
struct ucred *active_cred;
struct thread *td;
{
struct vnode *vp;
@ -802,13 +806,13 @@ vn_poll(fp, events, cred, td)
vp = (struct vnode *)fp->f_data;
#ifdef MAC
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td);
error = mac_check_vnode_op(cred, vp, MAC_OP_VNODE_POLL);
error = mac_check_vnode_op(active_cred, vp, MAC_OP_VNODE_POLL);
VOP_UNLOCK(vp, 0, td);
if (error)
return (error);
#endif
return (VOP_POLL(vp, events, cred, td));
return (VOP_POLL(vp, events, fp->f_cred, td));
}
/*

19
sys/sys/file.h
View File

@ -90,10 +90,10 @@ struct file {
int (*fo_ioctl)(struct file *fp, u_long com, void *data,
struct thread *td);
int (*fo_poll)(struct file *fp, int events,
struct ucred *cred, struct thread *td);
struct ucred *active_cred, struct thread *td);
int (*fo_kqfilter)(struct file *fp, struct knote *kn);
int (*fo_stat)(struct file *fp, struct stat *sb,
struct thread *td);
struct ucred *active_cred, struct thread *td);
int (*fo_close)(struct file *fp, struct thread *td);
} *f_ops;
int f_seqcount; /*
@ -182,9 +182,9 @@ static __inline int fo_write(struct file *fp, struct uio *uio,
static __inline int fo_ioctl(struct file *fp, u_long com, void *data,
struct thread *td);
static __inline int fo_poll(struct file *fp, int events,
struct ucred *cred, struct thread *td);
struct ucred *active_cred, struct thread *td);
static __inline int fo_stat(struct file *fp, struct stat *sb,
struct thread *td);
struct ucred *active_cred, struct thread *td);
static __inline int fo_close(struct file *fp, struct thread *td);
static __inline int fo_kqfilter(struct file *fp, struct knote *kn);
struct proc;
@ -225,24 +225,25 @@ fo_ioctl(fp, com, data, td)
}
static __inline int
fo_poll(fp, events, cred, td)
fo_poll(fp, events, active_cred, td)
struct file *fp;
int events;
struct ucred *cred;
struct ucred *active_cred;
struct thread *td;
{
return ((*fp->f_ops->fo_poll)(fp, events, cred, td));
return ((*fp->f_ops->fo_poll)(fp, events, active_cred, td));
}
static __inline int
fo_stat(fp, sb, td)
fo_stat(fp, sb, active_cred, td)
struct file *fp;
struct stat *sb;
struct ucred *active_cred;
struct thread *td;
{
return ((*fp->f_ops->fo_stat)(fp, sb, td));
return ((*fp->f_ops->fo_stat)(fp, sb, active_cred, td));
}
static __inline int

7
sys/sys/socketvar.h
View File

@ -352,9 +352,10 @@ int soo_write(struct file *fp, struct uio *uio,
int soo_close(struct file *fp, struct thread *td);
int soo_ioctl(struct file *fp, u_long cmd, void *data,
struct thread *td);
int soo_poll(struct file *fp, int events, struct ucred *cred,
int soo_poll(struct file *fp, int events, struct ucred *active_cred,
struct thread *td);
int soo_stat(struct file *fp, struct stat *ub, struct ucred *active_cred,
struct thread *td);
int soo_stat(struct file *fp, struct stat *ub, struct thread *td);
int sokqfilter(struct file *fp, struct knote *kn);
/*
@ -418,7 +419,7 @@ int soopt_getm(struct sockopt *sopt, struct mbuf **mp);
int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m);
int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m);
int sopoll(struct socket *so, int events, struct ucred *cred,
int sopoll(struct socket *so, int events, struct ucred *active_cred,
struct thread *td);
int soreceive(struct socket *so, struct sockaddr **paddr, struct uio *uio,
struct mbuf **mp0, struct mbuf **controlp, int *flagsp);

5
sys/sys/vnode.h
View File

@ -701,7 +701,7 @@ void vprint(char *label, struct vnode *vp);
int vrecycle(struct vnode *vp, struct mtx *inter_lkp,
struct thread *td);
int vn_close(struct vnode *vp,
int flags, struct ucred *cred, struct thread *td);
int flags, struct ucred *file_cred, struct thread *td);
void vn_finished_write(struct mount *mp);
int vn_isdisk(struct vnode *vp, int *errp);
int vn_lock(struct vnode *vp, int flags, struct thread *td);
@ -725,7 +725,8 @@ int vn_rdwr_inchunks(enum uio_rw rw, struct vnode *vp, caddr_t base,
int len, off_t offset, enum uio_seg segflg, int ioflg,
struct ucred *active_cred, struct ucred *file_cred, int *aresid,
struct thread *td);
int vn_stat(struct vnode *vp, struct stat *sb, struct thread *td);
int vn_stat(struct vnode *vp, struct stat *sb, struct ucred *active_cred,
struct ucred *file_cred, struct thread *td);
int vn_start_write(struct vnode *vp, struct mount **mpp, int flags);
dev_t vn_todev(struct vnode *vp);
int vn_write_suspend_wait(struct vnode *vp, struct mount *mp,