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| author | rwatson <rwatson@FreeBSD.org> | 2005-04-18 13:36:57 +0000 |
|---|---|---|
| committer | rwatson <rwatson@FreeBSD.org> | 2005-04-18 13:36:57 +0000 |
| commit | 75030e30f64232f9490b244e2925b347d7bf669c (patch) | |
| tree | edb79f235bf4b33075b9d7e39ce462e142125e48 /sys/security/mac_stub | |
| parent | 8694c5f46241d5fb117c7feed17f9896b6f9e730 (diff) | |
| download | FreeBSD-src-75030e30f64232f9490b244e2925b347d7bf669c.zip FreeBSD-src-75030e30f64232f9490b244e2925b347d7bf669c.tar.gz | |
Introduce p_canwait() and MAC Framework and MAC Policy entry points
mac_check_proc_wait(), which control the ability to wait4() specific
processes. This permits MAC policies to limit information flow from
children that have changed label, although has to be handled carefully
due to common programming expectations regarding the behavior of
wait4(). The cr_seeotheruids() check in p_canwait() is #if 0'd for
this reason.
The mac_stub and mac_test policies are updated to reflect these new
entry points.
Sponsored by: SPAWAR, SPARTA
Obtained from: TrustedBSD Project
Diffstat (limited to 'sys/security/mac_stub')
| -rw-r--r-- | sys/security/mac_stub/mac_stub.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/security/mac_stub/mac_stub.c b/sys/security/mac_stub/mac_stub.c index 9a7f567..64a06d9 100644 --- a/sys/security/mac_stub/mac_stub.c +++ b/sys/security/mac_stub/mac_stub.c @@ -842,6 +842,13 @@ stub_check_proc_signal(struct ucred *cred, struct proc *proc, int signum) } static int +stub_check_proc_wait(struct ucred *cred, struct proc *proc) +{ + + return (0); +} + +static int stub_check_proc_setuid(struct ucred *cred, uid_t uid) { @@ -1456,6 +1463,7 @@ static struct mac_policy_ops mac_stub_ops = .mpo_check_proc_setresuid = stub_check_proc_setresuid, .mpo_check_proc_setresgid = stub_check_proc_setresgid, .mpo_check_proc_signal = stub_check_proc_signal, + .mpo_check_proc_wait = stub_check_proc_wait, .mpo_check_socket_accept = stub_check_socket_accept, .mpo_check_socket_bind = stub_check_socket_bind, .mpo_check_socket_connect = stub_check_socket_connect, |
