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Code Issues Releases Activity

Add VOP_GETEXTATTR(9) passthrough support to pseudofs.

Browse Source 
Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
This commit is contained in:
Brian Feldman 2001-12-11 20:48:20 +00:00
parent 40e7a740c9
commit 41a35633ba
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=87670
2 changed files with 55 additions and 0 deletions
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13
sys/fs/pseudofs/pseudofs.h
View File

@ -132,6 +132,18 @@ typedef int (*pfs_vis_t)(PFS_VIS_ARGS);
int name(PFS_IOCTL_ARGS);
typedef int (*pfs_ioctl_t)(PFS_IOCTL_ARGS);
/*
* Getextattr callback
*/
#define PFS_GETEXTATTR_ARGS \
struct thread *td, struct proc *p, struct pfs_node *pn, \
int attrnamespace, const char *name, struct uio *uio, \
struct ucred *cred
#define PFS_GETEXTATTR_PROTO(name) \
int name(PFS_GETEXTATTR_ARGS);
struct ucred;
typedef int (*pfs_getextattr_t)(PFS_GETEXTATTR_ARGS);
/*
* Last-close callback
*/
@ -172,6 +184,7 @@ struct pfs_node {
pfs_close_t pn_close;
pfs_attr_t pn_attr;
pfs_vis_t pn_vis;
pfs_getextattr_t pn_getextattr;
void *pn_data;
int pn_flags;

42
sys/fs/pseudofs/pseudofs_vnops.c
View File

@ -250,6 +250,47 @@ pfs_ioctl(struct vop_ioctl_args *va)
PFS_RETURN (error);
}
/*
* Perform getextattr
*/
static int
pfs_getextattr(struct vop_getextattr_args *va)
{
struct vnode *vn = va->a_vp;
struct pfs_vdata *pvd = (struct pfs_vdata *)vn->v_data;
struct pfs_node *pn = pvd->pvd_pn;
struct proc *proc = NULL;
int error;
PFS_TRACE((pd->pn_name));
if (pn->pn_getextattr == NULL)
PFS_RETURN (EOPNOTSUPP);
/*
* This is necessary because either process' privileges may
* have changed since the open() call.
*/
if (!pfs_visible(curthread, pn, pvd->pvd_pid))
PFS_RETURN (EIO);
/* XXX duplicates bits of pfs_visible() */
if (pvd->pvd_pid != NO_PID) {
if ((proc = pfind(pvd->pvd_pid)) == NULL)
PFS_RETURN (EIO);
_PHOLD(proc);
PROC_UNLOCK(proc);
}
error = (pn->pn_getextattr)(curthread, proc, pn, va->a_attrnamespace,
va->a_name, va->a_uio, va->a_cred);
if (proc != NULL)
PRELE(proc);
PFS_RETURN (error);
}
/*
* Look up a file or directory
*/
@ -748,6 +789,7 @@ static struct vnodeopv_entry_desc pfs_vnodeop_entries[] = {
{ &vop_close_desc, (vop_t *)pfs_close },
{ &vop_create_desc, (vop_t *)pfs_badop },
{ &vop_getattr_desc, (vop_t *)pfs_getattr },
{ &vop_getextattr_desc, (vop_t *)pfs_getextattr },
{ &vop_ioctl_desc, (vop_t *)pfs_ioctl },
{ &vop_link_desc, (vop_t *)pfs_badop },
{ &vop_lookup_desc, (vop_t *)pfs_lookup },