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support extended attributes

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This commit is contained in:
pooka 2010-05-21 10:52:17 +00:00
parent c3be8a8cd5
commit 55a238165a
1 changed files with 130 additions and 1 deletions
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131
lib/libp2k/p2k.c
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@ -1,4 +1,4 @@
/* $NetBSD: p2k.c,v 1.37 2010/05/20 00:13:02 pooka Exp $ */
/* $NetBSD: p2k.c,v 1.38 2010/05/21 10:52:17 pooka Exp $ */
/*
* Copyright (c) 2007, 2008, 2009 Antti Kantee. All Rights Reserved.
@ -283,6 +283,7 @@ p2k_init(uint32_t puffs_flags)
PUFFSOP_SET(pops, p2k, fs, sync);
PUFFSOP_SET(pops, p2k, fs, fhtonode);
PUFFSOP_SET(pops, p2k, fs, nodetofh);
PUFFSOP_SET(pops, p2k, fs, extattrctl);
PUFFSOP_SET(pops, p2k, node, lookup);
PUFFSOP_SET(pops, p2k, node, create);
@ -313,6 +314,11 @@ p2k_init(uint32_t puffs_flags)
PUFFSOP_SET(pops, p2k, node, reclaim);
PUFFSOP_SET(pops, p2k, node, abortop);
PUFFSOP_SET(pops, p2k, node, getextattr);
PUFFSOP_SET(pops, p2k, node, setextattr);
PUFFSOP_SET(pops, p2k, node, listextattr);
PUFFSOP_SET(pops, p2k, node, deleteextattr);
dodaemon = true;
hasdebug = false;
@ -642,6 +648,26 @@ p2k_fs_nodetofh(struct puffs_usermount *pu, puffs_cookie_t cookie, void *fid,
return rump_pub_vfs_vptofh(vp, fid, fidsize);
}
int
p2k_fs_extattrctl(struct puffs_usermount *pu, int cmd,
puffs_cookie_t cookie, int flags,
int attrnamespace, const char *attrname)
{
struct p2k_mount *p2m = puffs_getspecific(pu);
struct mount *mp = p2m->p2m_mp;
struct vnode *vp;
if (flags & PUFFS_EXTATTRCTL_HASNODE) {
vp = OPC2VP(cookie);
RUMP_VOP_LOCK(vp, LK_EXCLUSIVE | LK_RETRY);
} else {
vp = NULL;
}
/* vfsop unlocks (but doesn't release) vnode, so we're done here */
return rump_pub_vfs_extattrctl(mp, cmd, vp, attrnamespace, attrname);
}
/*ARGSUSED*/
int
p2k_node_lookup(struct puffs_usermount *pu, puffs_cookie_t opc,
@ -1276,6 +1302,109 @@ p2k_node_write(struct puffs_usermount *pu, puffs_cookie_t opc,
return rv;
}
/*ARGSUSED*/
int
p2k_node_getextattr(struct puffs_usermount *pu, puffs_cookie_t opc,
int attrnamespace, const char *attrname, size_t *attrsize,
uint8_t *attr, size_t *resid, const struct puffs_cred *pcr)
{
struct vnode *vp = OPC2VP(opc);
struct kauth_cred *cred;
struct uio *uio;
int rv;
if (attr)
uio = rump_pub_uio_setup(attr, *resid, 0, RUMPUIO_READ);
else
uio = NULL;
cred = cred_create(pcr);
RUMP_VOP_LOCK(vp, LK_EXCLUSIVE);
rv = RUMP_VOP_GETEXTATTR(vp, attrnamespace, attrname, uio,
attrsize, cred);
RUMP_VOP_UNLOCK(vp, 0);
cred_destroy(cred);
if (uio)
*resid = rump_pub_uio_free(uio);
return rv;
}
/*ARGSUSED*/
int
p2k_node_setextattr(struct puffs_usermount *pu, puffs_cookie_t opc,
int attrnamespace, const char *attrname,
uint8_t *attr, size_t *resid, const struct puffs_cred *pcr)
{
struct vnode *vp = OPC2VP(opc);
struct kauth_cred *cred;
struct uio *uio;
int rv;
if (attr)
uio = rump_pub_uio_setup(attr, *resid, 0, RUMPUIO_READ);
else
uio = NULL;
cred = cred_create(pcr);
RUMP_VOP_LOCK(vp, LK_EXCLUSIVE);
rv = RUMP_VOP_SETEXTATTR(vp, attrnamespace, attrname, uio, cred);
RUMP_VOP_UNLOCK(vp, 0);
cred_destroy(cred);
if (uio)
*resid = rump_pub_uio_free(uio);
return rv;
}
/*ARGSUSED*/
int
p2k_node_listextattr(struct puffs_usermount *pu, puffs_cookie_t opc,
int attrnamespace, size_t *attrsize,
uint8_t *attrs, size_t *resid, const struct puffs_cred *pcr)
{
struct vnode *vp = OPC2VP(opc);
struct kauth_cred *cred;
struct uio *uio;
int rv;
if (attrs)
uio = rump_pub_uio_setup(attrs, *resid, 0, RUMPUIO_READ);
else
uio = NULL;
cred = cred_create(pcr);
RUMP_VOP_LOCK(vp, LK_EXCLUSIVE);
rv = RUMP_VOP_LISTEXTATTR(vp, attrnamespace, uio, attrsize, cred);
RUMP_VOP_UNLOCK(vp, 0);
cred_destroy(cred);
if (uio)
*resid = rump_pub_uio_free(uio);
return rv;
}
/*ARGSUSED*/
int
p2k_node_deleteextattr(struct puffs_usermount *pu, puffs_cookie_t opc,
int attrnamespace, const char *attrname, const struct puffs_cred *pcr)
{
struct vnode *vp = OPC2VP(opc);
struct kauth_cred *cred;
int rv;
cred = cred_create(pcr);
RUMP_VOP_LOCK(vp, LK_EXCLUSIVE);
rv = RUMP_VOP_DELETEEXTATTR(vp, attrnamespace, attrname, cred);
RUMP_VOP_UNLOCK(vp, 0);
cred_destroy(cred);
return rv;
}
/* the kernel releases its last reference here */
int
p2k_node_inactive(struct puffs_usermount *pu, puffs_cookie_t opc)