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selinux: remove 'flags' parameter from inode_has_perm 

Every single user passes in '0'.  I think we had non-zero users back in
some stone age when selinux_inode_permission() was implemented in terms
of inode_has_perm(), but that complicated case got split up into a
totally separate code-path so that we could optimize the much simpler
special cases.

See commit 2e33405785 ("SELinux: delay initialization of audit data in
selinux_inode_permission") for example.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Linus Torvalds 2013-10-04 12:54:11 -07:00
parent 15c83d26e1
commit 19e49834d2
1 changed files with 6 additions and 7 deletions
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13
security/selinux/hooks.c
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@ -1525,8 +1525,7 @@ static int task_has_system(struct task_struct *tsk,
static int inode_has_perm(const struct cred *cred,
struct inode *inode,
u32 perms,
struct common_audit_data *adp,
unsigned flags)
struct common_audit_data *adp)
{
struct inode_security_struct *isec;
u32 sid;
@ -1539,7 +1538,7 @@ static int inode_has_perm(const struct cred *cred,
sid = cred_sid(cred);
isec = inode->i_security;
return avc_has_perm_flags(sid, isec->sid, isec->sclass, perms, adp, flags);
return avc_has_perm(sid, isec->sid, isec->sclass, perms, adp);
}
/* Same as inode_has_perm, but pass explicit audit data containing
@ -1554,7 +1553,7 @@ static inline int dentry_has_perm(const struct cred *cred,
ad.type = LSM_AUDIT_DATA_DENTRY;
ad.u.dentry = dentry;
return inode_has_perm(cred, inode, av, &ad, 0);
return inode_has_perm(cred, inode, av, &ad);
}
/* Same as inode_has_perm, but pass explicit audit data containing
@ -1569,7 +1568,7 @@ static inline int path_has_perm(const struct cred *cred,
ad.type = LSM_AUDIT_DATA_PATH;
ad.u.path = *path;
return inode_has_perm(cred, inode, av, &ad, 0);
return inode_has_perm(cred, inode, av, &ad);
}
/* Same as path_has_perm, but uses the inode from the file struct. */
@ -1581,7 +1580,7 @@ static inline int file_path_has_perm(const struct cred *cred,
ad.type = LSM_AUDIT_DATA_PATH;
ad.u.path = file->f_path;
return inode_has_perm(cred, file_inode(file), av, &ad, 0);
return inode_has_perm(cred, file_inode(file), av, &ad);
}
/* Check whether a task can use an open file descriptor to
@ -1617,7 +1616,7 @@ static int file_has_perm(const struct cred *cred,
/* av is zero if only checking access to the descriptor. */
rc = 0;
if (av)
rc = inode_has_perm(cred, inode, av, &ad, 0);
rc = inode_has_perm(cred, inode, av, &ad);
out:
return rc;