Date: Tue, 17 Oct 2023 19:43:37 GMT From: Mitchell Horne <mhorne@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 8d935c419fda - stable/14 - prison_check(9): Bring up-to-date with hierarchical jails Message-ID: <202310171943.39HJhbBs013355@gitrepo.freebsd.org>
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The branch stable/14 has been updated by mhorne: URL: https://cgit.FreeBSD.org/src/commit/?id=8d935c419fdafa0cb6fe9e1a3ed6dd92fd76d776 commit 8d935c419fdafa0cb6fe9e1a3ed6dd92fd76d776 Author: Olivier Certner <olce.freebsd@certner.fr> AuthorDate: 2023-08-17 23:54:44 +0000 Commit: Mitchell Horne <mhorne@FreeBSD.org> CommitDate: 2023-10-17 19:42:59 +0000 prison_check(9): Bring up-to-date with hierarchical jails Reviewed by: bcr, emaste, pauamma_gundo.com, mhorne MFC after: 2 weeks Sponsored by: Kumacom SAS Differential Revision: https://reviews.freebsd.org/D40639 (cherry picked from commit e9fdd494537ca45b14e0917e8bb1595b6460f3a3) --- share/man/man9/prison_check.9 | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) diff --git a/share/man/man9/prison_check.9 b/share/man/man9/prison_check.9 index b3bdcf6b4571..7f174e3ceb2e 100644 --- a/share/man/man9/prison_check.9 +++ b/share/man/man9/prison_check.9 @@ -25,22 +25,23 @@ .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. .\" -.Dd December 11, 2003 +.Dd August 18, 2023 .Dt PRISON_CHECK 9 .Os .Sh NAME .Nm prison_check -.Nd determine if two credentials belong to the same jail +.Nd determine if subjects may see entities according to jail restrictions .Sh SYNOPSIS .In sys/jail.h .Ft int .Fn prison_check "struct ucred *cred1" "struct ucred *cred2" .Sh DESCRIPTION -This function can be used to determine if the two credentials +This function determines if a subject with credentials .Fa cred1 -and +is denied access to subjects or objects with credentials .Fa cred2 -belong to the same jail. +according to the policy that a subject can see subjects or objects in its own +jail or any sub-jail of it. .Sh RETURN VALUES The .Fn prison_check @@ -48,12 +49,9 @@ function returns .Er ESRCH if -.Fa cred1 -has been jailed, and -.Fa cred1 -and .Fa cred2 -do not belong to the same jail. +is not in the same jail or a sub-jail of that of +.Fa cred1 . In all other cases, .Fn prison_check returns zero.
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