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lsm: infrastructure management of the dev_tun blob

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Move management of the dev_tun security blob out of the individual
security modules and into the LSM infrastructure.  The security modules
tell the infrastructure how much space they require at initialization.
There are no longer any modules that require the dev_tun_free hook.
The hook definition has been removed.

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: John Johansen <john.johansen@canonical.com>
[PM: subject tweak, selinux style fixes]
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Casey Schaufler
2024-07-10 14:32:28 -07:00
committed by Paul Moore
parent 09001284ee
commit a39c0f77db
5 changed files with 28 additions and 20 deletions
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5
security/selinux/include/objsec.h
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@@ -207,4 +207,9 @@ static inline struct sk_security_struct *selinux_sock(const struct sock *sock)
return sock->sk_security + selinux_blob_sizes.lbs_sock;
}
static inline struct tun_security_struct *selinux_tun_dev(void *security)
{
return security + selinux_blob_sizes.lbs_tun_dev;
}
#endif /* _SELINUX_OBJSEC_H_ */