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Implementations of mpo_check_vnode_deleteextattr() and

Browse Source 
mpo_check_vnode_listextattr() for Biba, MLS, and BSD Extended.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, Network Associates Laboratories
This commit is contained in:
Robert Watson 2003-08-21 14:34:54 +00:00
parent eb8b29cdcc
commit 54e2c147b1
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=119202
3 changed files with 112 additions and 1 deletions
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38
sys/security/mac_biba/mac_biba.c
View File

@ -2070,6 +2070,24 @@ mac_biba_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp,
return (0);
}
static int
mac_biba_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp,
struct label *label, int attrnamespace, const char *name)
{
struct mac_biba *subj, *obj;
if (!mac_biba_enabled)
return (0);
subj = SLOT(&cred->cr_label);
obj = SLOT(label);
if (!mac_biba_dominate_single(subj, obj))
return (EACCES);
return (0);
}
static int
mac_biba_check_vnode_exec(struct ucred *cred, struct vnode *vp,
struct label *label, struct image_params *imgp,
@ -2162,6 +2180,24 @@ mac_biba_check_vnode_link(struct ucred *cred, struct vnode *dvp,
return (0);
}
static int
mac_biba_check_vnode_listextattr(struct ucred *cred, struct vnode *vp,
struct label *label, int attrnamespace)
{
struct mac_biba *subj, *obj;
if (!mac_biba_enabled)
return (0);
subj = SLOT(&cred->cr_label);
obj = SLOT(label);
if (!mac_biba_dominate_single(obj, subj))
return (EACCES);
return (0);
}
static int
mac_biba_check_vnode_lookup(struct ucred *cred, struct vnode *dvp,
struct label *dlabel, struct componentname *cnp)
@ -2683,10 +2719,12 @@ static struct mac_policy_ops mac_biba_ops =
.mpo_check_vnode_create = mac_biba_check_vnode_create,
.mpo_check_vnode_delete = mac_biba_check_vnode_delete,
.mpo_check_vnode_deleteacl = mac_biba_check_vnode_deleteacl,
.mpo_check_vnode_deleteextattr = mac_biba_check_vnode_deleteextattr,
.mpo_check_vnode_exec = mac_biba_check_vnode_exec,
.mpo_check_vnode_getacl = mac_biba_check_vnode_getacl,
.mpo_check_vnode_getextattr = mac_biba_check_vnode_getextattr,
.mpo_check_vnode_link = mac_biba_check_vnode_link,
.mpo_check_vnode_listextattr = mac_biba_check_vnode_listextattr,
.mpo_check_vnode_lookup = mac_biba_check_vnode_lookup,
.mpo_check_vnode_mmap = mac_biba_check_vnode_mmap,
.mpo_check_vnode_mprotect = mac_biba_check_vnode_mmap,

36
sys/security/mac_bsdextended/mac_bsdextended.c
View File

@ -1,6 +1,6 @@
/*-
* Copyright (c) 1999, 2000, 2001, 2002 Robert N. M. Watson
* Copyright (c) 2001, 2002 Networks Associates Technology, Inc.
* Copyright (c) 2001, 2002, 2003 Networks Associates Technology, Inc.
* All rights reserved.
*
* This software was developed by Robert Watson for the TrustedBSD Project.
@ -417,6 +417,22 @@ mac_bsdextended_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp,
return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VADMIN));
}
static int
mac_bsdextended_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp,
struct label *label, int attrnamespace, const char *name)
{
struct vattr vap;
int error;
if (!mac_bsdextended_enabled)
return (0);
error = VOP_GETATTR(vp, &vap, cred, curthread);
if (error)
return (error);
return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VWRITE));
}
static int
mac_bsdextended_check_vnode_exec(struct ucred *cred, struct vnode *vp,
struct label *label, struct image_params *imgp,
@ -494,6 +510,22 @@ mac_bsdextended_check_vnode_link(struct ucred *cred, struct vnode *dvp,
return (0);
}
static int
mac_bsdextended_check_vnode_listextattr(struct ucred *cred, struct vnode *vp,
struct label *label, int attrnamespace)
{
struct vattr vap;
int error;
if (!mac_bsdextended_enabled)
return (0);
error = VOP_GETATTR(vp, &vap, cred, curthread);
if (error)
return (error);
return (mac_bsdextended_check(cred, vap.va_uid, vap.va_gid, VREAD));
}
static int
mac_bsdextended_check_vnode_lookup(struct ucred *cred, struct vnode *dvp,
struct label *dlabel, struct componentname *cnp)
@ -752,10 +784,12 @@ static struct mac_policy_ops mac_bsdextended_ops =
.mpo_check_vnode_create = mac_bsdextended_check_create_vnode,
.mpo_check_vnode_delete = mac_bsdextended_check_vnode_delete,
.mpo_check_vnode_deleteacl = mac_bsdextended_check_vnode_deleteacl,
.mpo_check_vnode_deleteextattr = mac_bsdextended_check_vnode_deleteextattr,
.mpo_check_vnode_exec = mac_bsdextended_check_vnode_exec,
.mpo_check_vnode_getacl = mac_bsdextended_check_vnode_getacl,
.mpo_check_vnode_getextattr = mac_bsdextended_check_vnode_getextattr,
.mpo_check_vnode_link = mac_bsdextended_check_vnode_link,
.mpo_check_vnode_listextattr = mac_bsdextended_check_vnode_listextattr,
.mpo_check_vnode_lookup = mac_bsdextended_check_vnode_lookup,
.mpo_check_vnode_open = mac_bsdextended_check_vnode_open,
.mpo_check_vnode_readdir = mac_bsdextended_check_vnode_readdir,

39
sys/security/mac_mls/mac_mls.c
View File

@ -1839,6 +1839,24 @@ mac_mls_check_vnode_deleteacl(struct ucred *cred, struct vnode *vp,
return (0);
}
static int
mac_mls_check_vnode_deleteextattr(struct ucred *cred, struct vnode *vp,
struct label *label, int attrnamespace, const char *name)
{
struct mac_mls *subj, *obj;
if (!mac_mls_enabled)
return (0);
subj = SLOT(&cred->cr_label);
obj = SLOT(label);
if (!mac_mls_dominate_single(obj, subj))
return (EACCES);
return (0);
}
static int
mac_mls_check_vnode_exec(struct ucred *cred, struct vnode *vp,
struct label *label, struct image_params *imgp,
@ -1930,6 +1948,25 @@ mac_mls_check_vnode_link(struct ucred *cred, struct vnode *dvp,
return (0);
}
static int
mac_mls_check_vnode_listextattr(struct ucred *cred, struct vnode *vp,
struct label *label, int attrnamespace)
{
struct mac_mls *subj, *obj;
if (!mac_mls_enabled)
return (0);
subj = SLOT(&cred->cr_label);
obj = SLOT(label);
if (!mac_mls_dominate_single(subj, obj))
return (EACCES);
return (0);
}
static int
mac_mls_check_vnode_lookup(struct ucred *cred, struct vnode *dvp,
struct label *dlabel, struct componentname *cnp)
@ -2445,10 +2482,12 @@ static struct mac_policy_ops mac_mls_ops =
.mpo_check_vnode_create = mac_mls_check_vnode_create,
.mpo_check_vnode_delete = mac_mls_check_vnode_delete,
.mpo_check_vnode_deleteacl = mac_mls_check_vnode_deleteacl,
.mpo_check_vnode_deleteextattr = mac_mls_check_vnode_deleteextattr,
.mpo_check_vnode_exec = mac_mls_check_vnode_exec,
.mpo_check_vnode_getacl = mac_mls_check_vnode_getacl,
.mpo_check_vnode_getextattr = mac_mls_check_vnode_getextattr,
.mpo_check_vnode_link = mac_mls_check_vnode_link,
.mpo_check_vnode_listextattr = mac_mls_check_vnode_listextattr,
.mpo_check_vnode_lookup = mac_mls_check_vnode_lookup,
.mpo_check_vnode_mmap = mac_mls_check_vnode_mmap,
.mpo_check_vnode_mprotect = mac_mls_check_vnode_mmap,