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add support for permissions and file ownership

This commit is contained in:
pooka 2007-03-20 18:30:30 +00:00
parent 2bddbed0e0
commit 6d03fb0803
4 changed files with 45 additions and 14 deletions
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3
share/examples/puffs/dtfs/dtfs.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dtfs.c,v 1.15 2007/01/26 23:02:05 pooka Exp $ */
/* $NetBSD: dtfs.c,v 1.16 2007/03/20 18:30:30 pooka Exp $ */
/*
* Copyright (c) 2006 Antti Kantee. All Rights Reserved.
@ -126,6 +126,7 @@ main(int argc, char *argv[])
PUFFSOP_SET(pops, dtfs, fs, suspend);
PUFFSOP_SET(pops, dtfs, node, lookup);
PUFFSOP_SET(pops, dtfs, node, access);
PUFFSOP_SET(pops, dtfs, node, getattr);
PUFFSOP_SET(pops, dtfs, node, setattr);
PUFFSOP_SET(pops, dtfs, node, create);

6
share/examples/puffs/dtfs/dtfs.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: dtfs.h,v 1.9 2007/03/11 10:08:37 pooka Exp $ */
/* $NetBSD: dtfs.h,v 1.10 2007/03/20 18:30:30 pooka Exp $ */
/*
* Copyright (c) 2006 Antti Kantee. All Rights Reserved.
@ -82,8 +82,8 @@ struct dtfs_fs {
size_t dtfs_size;
};
struct puffs_node * dtfs_genfile(struct puffs_node *, const char *,
enum vtype);
struct puffs_node * dtfs_genfile(struct puffs_node *,
const struct puffs_cn *, enum vtype);
struct dtfs_file * dtfs_newdir(void);
struct dtfs_file * dtfs_newfile(void);
struct dtfs_dirent * dtfs_dirgetnth(struct dtfs_file *, int);

16
share/examples/puffs/dtfs/dtfs_subr.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dtfs_subr.c,v 1.11 2007/03/11 10:08:37 pooka Exp $ */
/* $NetBSD: dtfs_subr.c,v 1.12 2007/03/20 18:30:30 pooka Exp $ */
/*
* Copyright (c) 2006 Antti Kantee. All Rights Reserved.
@ -81,16 +81,23 @@ dtfs_baseattrs(struct vattr *vap, enum vtype type, ino_t id)
* implement your own fs.
*/
struct puffs_node *
dtfs_genfile(struct puffs_node *dir, const char *name, enum vtype type)
dtfs_genfile(struct puffs_node *dir, const struct puffs_cn *pcn,
enum vtype type)
{
struct dtfs_file *df_dir, *dff;
struct dtfs_dirent *dfd;
struct dtfs_mount *dtm;
struct puffs_node *newpn;
uid_t uid;
int rv;
assert(dir->pn_va.va_type == VDIR);
assert(dir->pn_mnt != NULL);
uid = 0;
rv = puffs_cred_getuid(&pcn->pcn_cred, &uid);
assert(rv == 0);
if (type == VDIR) {
dff = dtfs_newdir();
dff->df_dotdot = dir;
@ -106,10 +113,13 @@ dtfs_genfile(struct puffs_node *dir, const char *name, enum vtype type)
df_dir = dir->pn_data;
dfd = emalloc(sizeof(struct dtfs_dirent));
dfd->dfd_node = newpn;
dfd->dfd_name = estrdup(name);
dfd->dfd_name = estrdup(pcn->pcn_name);
dfd->dfd_parent = dir;
dtfs_adddent(dir, dfd);
newpn->pn_va.va_uid = uid;
newpn->pn_va.va_gid = dir->pn_va.va_gid;
return newpn;
}

34
share/examples/puffs/dtfs/dtfs_vnops.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: dtfs_vnops.c,v 1.16 2007/03/11 10:08:37 pooka Exp $ */
/* $NetBSD: dtfs_vnops.c,v 1.17 2007/03/20 18:30:30 pooka Exp $ */
/*
* Copyright (c) 2006 Antti Kantee. All Rights Reserved.
@ -46,8 +46,10 @@ dtfs_node_lookup(struct puffs_cc *pcc, void *opc, void **newnode,
enum vtype *newtype, voff_t *newsize, dev_t *newrdev,
const struct puffs_cn *pcn)
{
struct puffs_node *pn_dir = opc;
struct dtfs_file *df = DTFS_CTOF(opc);
struct dtfs_dirent *dfd;
int rv;
/* parent dir? */
if (PCNISDOTDOT(pcn)) {
@ -68,10 +70,29 @@ dtfs_node_lookup(struct puffs_cc *pcc, void *opc, void **newnode,
return 0;
}
if ((pcn->pcn_flags & PUFFSLOOKUP_ISLASTCN)
&& (pcn->pcn_nameiop == PUFFSLOOKUP_CREATE ||
pcn->pcn_nameiop == PUFFSLOOKUP_RENAME)) {
rv = puffs_access(VDIR, pn_dir->pn_va.va_mode,
pn_dir->pn_va.va_uid, pn_dir->pn_va.va_gid,
PUFFS_VWRITE, &pcn->pcn_cred);
if (rv)
return rv;
}
return ENOENT;
}
/* no credcheck */
int
dtfs_node_access(struct puffs_cc *pcc, void *opc, int acc_mode,
const struct puffs_cred *pcr, pid_t pid)
{
struct puffs_node *pn = opc;
return puffs_access(pn->pn_va.va_type, pn->pn_va.va_mode,
pn->pn_va.va_uid, pn->pn_va.va_gid, acc_mode, pcr);
}
int
dtfs_node_getattr(struct puffs_cc *pcc, void *opc,
struct vattr *va, const struct puffs_cred *pcr, pid_t pid)
@ -86,7 +107,6 @@ dtfs_node_getattr(struct puffs_cc *pcc, void *opc,
return 0;
}
/* no credcheck */
int
dtfs_node_setattr(struct puffs_cc *pcc, void *opc,
const struct vattr *va, const struct puffs_cred *pcr, pid_t pid)
@ -129,7 +149,7 @@ dtfs_node_create(struct puffs_cc *pcc, void *opc, void **newnode,
if (!(va->va_type == VREG || va->va_type == VSOCK))
return ENODEV;
pn_new = dtfs_genfile(pn_parent, pcn->pcn_name, va->va_type);
pn_new = dtfs_genfile(pn_parent, pcn, va->va_type);
puffs_setvattr(&pn_new->pn_va, va);
*newnode = pn_new;
@ -159,7 +179,7 @@ dtfs_node_mkdir(struct puffs_cc *pcc, void *opc, void **newnode,
struct puffs_node *pn_parent = opc;
struct puffs_node *pn_new;
pn_new = dtfs_genfile(pn_parent, pcn->pcn_name, VDIR);
pn_new = dtfs_genfile(pn_parent, pcn, VDIR);
puffs_setvattr(&pn_new->pn_va, va);
*newnode = pn_new;
@ -286,7 +306,7 @@ dtfs_node_symlink(struct puffs_cc *pcc, void *opc, void **newnode,
if (va->va_type != VLNK)
return ENODEV;
pn_new = dtfs_genfile(pn_parent, pcn_src->pcn_name, VLNK);
pn_new = dtfs_genfile(pn_parent, pcn_src, VLNK);
puffs_setvattr(&pn_new->pn_va, va);
df_new = DTFS_PTOF(pn_new);
df_new->df_linktarget = estrdup(link_target);
@ -323,7 +343,7 @@ dtfs_node_mknod(struct puffs_cc *pcc, void *opc, void **newnode,
|| va->va_type == VFIFO))
return EINVAL;
pn_new = dtfs_genfile(pn_parent, pcn->pcn_name, va->va_type);
pn_new = dtfs_genfile(pn_parent, pcn, va->va_type);
puffs_setvattr(&pn_new->pn_va, va);
df = DTFS_PTOF(pn_new);