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commit: c12c719d9ac0789fa319eaf9aa06731bfdf47827 |
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Author: Jason Zaman <jason <AT> perfinion <DOT> com> |
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AuthorDate: Thu Nov 2 17:30:45 2017 +0000 |
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Commit: Jason Zaman <perfinion <AT> gentoo <DOT> org> |
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CommitDate: Sun Nov 5 06:38:35 2017 +0000 |
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URL: https://gitweb.gentoo.org/proj/hardened-refpolicy.git/commit/?id=c12c719d |
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|
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mls mcs: Add constraints for key class |
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|
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Taken from fedoras policy |
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https://github.com/fedora-selinux/selinux-policy/blob/rawhide-base/policy/mls |
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https://github.com/fedora-selinux/selinux-policy/blob/rawhide-base/policy/mcs |
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|
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policy/mcs | 3 +++ |
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policy/mls | 8 ++++++++ |
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policy/modules/kernel/mls.if | 41 +++++++++++++++++++++++++++++++++++++++++ |
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policy/modules/kernel/mls.te | 3 +++ |
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4 files changed, 55 insertions(+) |
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|
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diff --git a/policy/mcs b/policy/mcs |
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index 4d030112..94319570 100644 |
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--- a/policy/mcs |
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+++ b/policy/mcs |
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@@ -123,6 +123,9 @@ mlsconstrain process { signal } |
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mlsconstrain { tcp_socket udp_socket rawip_socket } node_bind |
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(( h1 dom h2 ) or ( t1 != mcs_constrained_type )); |
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|
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+mlsconstrain key { create link read search setattr view write } |
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+ (( h1 dom h2 ) or ( t1 != mcs_constrained_type )); |
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+ |
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# |
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# MCS policy for SELinux-enabled databases |
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# |
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|
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diff --git a/policy/mls b/policy/mls |
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index 69ca7263..2dadd205 100644 |
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--- a/policy/mls |
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+++ b/policy/mls |
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@@ -281,6 +281,14 @@ mlsconstrain msg send |
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# { ipc sem msgq shm } associate |
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|
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|
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+# |
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+# MLS policy for the key class |
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+# |
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+ |
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+mlsconstrain key { create link read search setattr view write } |
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+ (( l1 eq l2 ) or |
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+ (( t1 == mlskeywritetoclr ) and ( h1 dom l2 ) and ( l1 domby l2 )) or |
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+ ( t1 == mlskeywrite )); |
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|
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|
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# |
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|
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diff --git a/policy/modules/kernel/mls.if b/policy/modules/kernel/mls.if |
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index 3929ffc4..b09c0a5a 100644 |
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--- a/policy/modules/kernel/mls.if |
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+++ b/policy/modules/kernel/mls.if |
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@@ -426,6 +426,47 @@ interface(`mls_sysvipc_write_all_levels',` |
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|
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######################################## |
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## <summary> |
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+## Make specified domain MLS trusted |
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+## for writing to keys up to |
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+## its clearance. |
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+## </summary> |
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+## <param name="domain"> |
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+## <summary> |
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+## Domain allowed access. |
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+## </summary> |
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+## </param> |
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+## <rolecap/> |
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+# |
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+interface(`mls_key_write_to_clearance',` |
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+ gen_require(` |
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+ attribute mlskeywritetoclr; |
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+ ') |
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+ |
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+ typeattribute $1 mlskeywritetoclr; |
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+') |
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+ |
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+######################################## |
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+## <summary> |
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+## Make specified domain MLS trusted |
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+## for writing to keys at all levels. |
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+## </summary> |
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+## <param name="domain"> |
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+## <summary> |
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+## Domain allowed access. |
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+## </summary> |
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+## </param> |
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+## <rolecap/> |
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+# |
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+interface(`mls_key_write_all_levels',` |
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+ gen_require(` |
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+ attribute mlskeywrite; |
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+ ') |
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+ |
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+ typeattribute $1 mlskeywrite; |
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+') |
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+ |
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+######################################## |
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+## <summary> |
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## Allow the specified domain to do a MLS |
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## range transition that changes |
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## the current level. |
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|
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diff --git a/policy/modules/kernel/mls.te b/policy/modules/kernel/mls.te |
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index 15e50a36..e879ddd3 100644 |
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--- a/policy/modules/kernel/mls.te |
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+++ b/policy/modules/kernel/mls.te |
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@@ -30,6 +30,9 @@ attribute mlsipcreadtoclr; |
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attribute mlsipcwrite; |
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attribute mlsipcwritetoclr; |
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|
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+attribute mlskeywrite; |
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+attribute mlskeywritetoclr; |
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+ |
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attribute mlsprocread; |
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attribute mlsprocreadtoclr; |
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attribute mlsprocwrite; |
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