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selinux: kill 'flags' argument in avc_has_perm_flags() and avc_audit() 

... along with avc_has_perm_flags() itself, since now it's identical
to avc_has_perm() (as pointed out by Paul Moore)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
[PM: add "selinux:" prefix to subj and tweak for length]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Al Viro 2021-01-16 15:57:49 -05:00 committed by Paul Moore
parent b17ec22fb3
commit d99cf13f14
3 changed files with 5 additions and 31 deletions
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20
security/selinux/avc.c
View File

@ -1180,25 +1180,7 @@ int avc_has_perm(struct selinux_state *state, u32 ssid, u32 tsid, u16 tclass,
&avd);
rc2 = avc_audit(state, ssid, tsid, tclass, requested, &avd, rc,
auditdata, 0);
if (rc2)
return rc2;
return rc;
}
int avc_has_perm_flags(struct selinux_state *state,
u32 ssid, u32 tsid, u16 tclass, u32 requested,
struct common_audit_data *auditdata,
int flags)
{
struct av_decision avd;
int rc, rc2;
rc = avc_has_perm_noaudit(state, ssid, tsid, tclass, requested, 0,
&avd);
rc2 = avc_audit(state, ssid, tsid, tclass, requested, &avd, rc,
auditdata, flags);
auditdata);
if (rc2)
return rc2;
return rc;

7
security/selinux/hooks.c
View File

@ -1676,7 +1676,7 @@ static int cred_has_capability(const struct cred *cred,
sid, sid, sclass, av, 0, &avd);
if (!(opts & CAP_OPT_NOAUDIT)) {
int rc2 = avc_audit(&selinux_state,
sid, sid, sclass, av, &avd, rc, &ad, 0);
sid, sid, sclass, av, &avd, rc, &ad);
if (rc2)
return rc2;
}
@ -3153,9 +3153,8 @@ static int selinux_inode_follow_link(struct dentry *dentry, struct inode *inode,
if (IS_ERR(isec))
return PTR_ERR(isec);
return avc_has_perm_flags(&selinux_state,
sid, isec->sid, isec->sclass, FILE__READ, &ad,
rcu ? MAY_NOT_BLOCK : 0);
return avc_has_perm(&selinux_state,
sid, isec->sid, isec->sclass, FILE__READ, &ad);
}
static noinline int audit_inode_permission(struct inode *inode,

9
security/selinux/include/avc.h
View File

@ -111,7 +111,6 @@ int slow_avc_audit(struct selinux_state *state,
* @avd: access vector decisions
* @result: result from avc_has_perm_noaudit
* @a: auxiliary audit data
* @flags: VFS walk flags
*
* Audit the granting or denial of permissions in accordance
* with the policy. This function is typically called by
@ -127,8 +126,7 @@ static inline int avc_audit(struct selinux_state *state,
u16 tclass, u32 requested,
struct av_decision *avd,
int result,
struct common_audit_data *a,
int flags)
struct common_audit_data *a)
{
u32 audited, denied;
audited = avc_audit_required(requested, avd, result, 0, &denied);
@ -151,11 +149,6 @@ int avc_has_perm(struct selinux_state *state,
u32 ssid, u32 tsid,
u16 tclass, u32 requested,
struct common_audit_data *auditdata);
int avc_has_perm_flags(struct selinux_state *state,
u32 ssid, u32 tsid,
u16 tclass, u32 requested,
struct common_audit_data *auditdata,
int flags);
int avc_has_extended_perms(struct selinux_state *state,
u32 ssid, u32 tsid, u16 tclass, u32 requested,