From: Casey Schaufler <casey@schaufler-ca.com> To: casey.schaufler@intel.com, jmorris@namei.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: casey@schaufler-ca.com, linux-audit@redhat.com, keescook@chromium.org, john.johansen@canonical.com, penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com, stephen.smalley.work@gmail.com, linux-kernel@vger.kernel.org Subject: [PATCH v33 29/29] AppArmor: Remove the exclusive flag Date: Thu, 10 Mar 2022 15:46:32 -0800 [thread overview] Message-ID: <20220310234632.16194-30-casey@schaufler-ca.com> (raw) In-Reply-To: <20220310234632.16194-1-casey@schaufler-ca.com> With the inclusion of the interface LSM process attribute mechanism AppArmor no longer needs to be treated as an "exclusive" security module. Remove the flag that indicates it is exclusive. Remove the stub getpeersec_dgram AppArmor hook as it has no effect in the single LSM case and interferes in the multiple LSM case. Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com> Acked-by: John Johansen <john.johansen@canonical.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> --- security/apparmor/lsm.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index 1ee58c1491ab..388298a15556 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -1145,22 +1145,6 @@ static int apparmor_socket_getpeersec_stream(struct socket *sock, return error; } -/** - * apparmor_socket_getpeersec_dgram - get security label of packet - * @sock: the peer socket - * @skb: packet data - * @secid: pointer to where to put the secid of the packet - * - * Sets the netlabel socket state on sk from parent - */ -static int apparmor_socket_getpeersec_dgram(struct socket *sock, - struct sk_buff *skb, u32 *secid) - -{ - /* TODO: requires secid support */ - return -ENOPROTOOPT; -} - /** * apparmor_sock_graft - Initialize newly created socket * @sk: child sock @@ -1264,8 +1248,6 @@ static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = { #endif LSM_HOOK_INIT(socket_getpeersec_stream, apparmor_socket_getpeersec_stream), - LSM_HOOK_INIT(socket_getpeersec_dgram, - apparmor_socket_getpeersec_dgram), LSM_HOOK_INIT(sock_graft, apparmor_sock_graft), #ifdef CONFIG_NETWORK_SECMARK LSM_HOOK_INIT(inet_conn_request, apparmor_inet_conn_request), @@ -1919,7 +1901,7 @@ static int __init apparmor_init(void) DEFINE_LSM(apparmor) = { .name = "apparmor", - .flags = LSM_FLAG_LEGACY_MAJOR | LSM_FLAG_EXCLUSIVE, + .flags = LSM_FLAG_LEGACY_MAJOR, .enabled = &apparmor_enabled, .blobs = &apparmor_blob_sizes, .init = apparmor_init, -- 2.31.1
WARNING: multiple messages have this Message-ID (diff)
From: Casey Schaufler <casey@schaufler-ca.com> To: casey.schaufler@intel.com, jmorris@namei.org, linux-security-module@vger.kernel.org, selinux@vger.kernel.org Cc: john.johansen@canonical.com, linux-kernel@vger.kernel.org, linux-audit@redhat.com Subject: [PATCH v33 29/29] AppArmor: Remove the exclusive flag Date: Thu, 10 Mar 2022 15:46:32 -0800 [thread overview] Message-ID: <20220310234632.16194-30-casey@schaufler-ca.com> (raw) In-Reply-To: <20220310234632.16194-1-casey@schaufler-ca.com> With the inclusion of the interface LSM process attribute mechanism AppArmor no longer needs to be treated as an "exclusive" security module. Remove the flag that indicates it is exclusive. Remove the stub getpeersec_dgram AppArmor hook as it has no effect in the single LSM case and interferes in the multiple LSM case. Acked-by: Stephen Smalley <stephen.smalley.work@gmail.com> Acked-by: John Johansen <john.johansen@canonical.com> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> --- security/apparmor/lsm.c | 20 +------------------- 1 file changed, 1 insertion(+), 19 deletions(-) diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c index 1ee58c1491ab..388298a15556 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -1145,22 +1145,6 @@ static int apparmor_socket_getpeersec_stream(struct socket *sock, return error; } -/** - * apparmor_socket_getpeersec_dgram - get security label of packet - * @sock: the peer socket - * @skb: packet data - * @secid: pointer to where to put the secid of the packet - * - * Sets the netlabel socket state on sk from parent - */ -static int apparmor_socket_getpeersec_dgram(struct socket *sock, - struct sk_buff *skb, u32 *secid) - -{ - /* TODO: requires secid support */ - return -ENOPROTOOPT; -} - /** * apparmor_sock_graft - Initialize newly created socket * @sk: child sock @@ -1264,8 +1248,6 @@ static struct security_hook_list apparmor_hooks[] __lsm_ro_after_init = { #endif LSM_HOOK_INIT(socket_getpeersec_stream, apparmor_socket_getpeersec_stream), - LSM_HOOK_INIT(socket_getpeersec_dgram, - apparmor_socket_getpeersec_dgram), LSM_HOOK_INIT(sock_graft, apparmor_sock_graft), #ifdef CONFIG_NETWORK_SECMARK LSM_HOOK_INIT(inet_conn_request, apparmor_inet_conn_request), @@ -1919,7 +1901,7 @@ static int __init apparmor_init(void) DEFINE_LSM(apparmor) = { .name = "apparmor", - .flags = LSM_FLAG_LEGACY_MAJOR | LSM_FLAG_EXCLUSIVE, + .flags = LSM_FLAG_LEGACY_MAJOR, .enabled = &apparmor_enabled, .blobs = &apparmor_blob_sizes, .init = apparmor_init, -- 2.31.1 -- Linux-audit mailing list Linux-audit@redhat.com https://listman.redhat.com/mailman/listinfo/linux-audit
next prev parent reply other threads:[~2022-03-11 0:01 UTC|newest] Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <20220310234632.16194-1-casey.ref@schaufler-ca.com> 2022-03-10 23:46 ` [PATCH v33 00/29] LSM: Module stacking for AppArmor Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 01/29] integrity: disassociate ima_filter_rule from security_audit_rule Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-11 10:48 ` kernel test robot 2022-03-11 10:48 ` kernel test robot 2022-03-10 23:46 ` [PATCH v33 02/29] LSM: Infrastructure management of the sock security Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 03/29] LSM: Add the lsmblob data structure Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 04/29] LSM: provide lsm name and id slot mappings Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 05/29] IMA: avoid label collisions with stacked LSMs Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 06/29] LSM: Use lsmblob in security_audit_rule_match Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 07/29] LSM: Use lsmblob in security_kernel_act_as Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 08/29] LSM: Use lsmblob in security_secctx_to_secid Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 09/29] LSM: Use lsmblob in security_secid_to_secctx Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 10/29] LSM: Use lsmblob in security_ipc_getsecid Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 11/29] LSM: Use lsmblob in security_current_getsecid Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 12/29] LSM: Use lsmblob in security_inode_getsecid Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 13/29] LSM: Use lsmblob in security_cred_getsecid Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-11 7:52 ` kernel test robot 2022-03-11 7:52 ` kernel test robot 2022-03-11 9:16 ` kernel test robot 2022-03-11 9:16 ` kernel test robot 2022-03-12 4:50 ` kernel test robot 2022-03-12 4:50 ` kernel test robot 2022-03-10 23:46 ` [PATCH v33 14/29] LSM: Specify which LSM to display Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 15/29] LSM: Ensure the correct LSM context releaser Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 16/29] LSM: Use lsmcontext in security_secid_to_secctx Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 17/29] LSM: Use lsmcontext in security_inode_getsecctx Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 18/29] LSM: security_secid_to_secctx in netlink netfilter Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 19/29] NET: Store LSM netlabel data in a lsmblob Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 20/29] binder: Pass LSM identifier for confirmation Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 21/29] LSM: Extend security_secid_to_secctx to include module selection Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 22/29] Audit: Keep multiple LSM data in audit_names Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 23/29] Audit: Create audit_stamp structure Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 24/29] LSM: Add a function to report multiple LSMs Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 25/29] Audit: Allow multiple records in an audit_buffer Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-15 23:47 ` Paul Moore 2022-03-15 23:47 ` Paul Moore 2022-03-16 0:06 ` Casey Schaufler 2022-03-16 0:06 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 26/29] Audit: Add record for multiple task security contexts Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-15 23:47 ` Paul Moore 2022-03-15 23:47 ` Paul Moore 2022-03-16 0:17 ` Casey Schaufler 2022-03-16 0:17 ` Casey Schaufler 2022-03-10 23:46 ` [PATCH v33 27/29] Audit: Add record for multiple object " Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-15 23:47 ` Paul Moore 2022-03-15 23:47 ` Paul Moore 2022-03-16 0:23 ` Casey Schaufler 2022-03-16 0:23 ` Casey Schaufler 2022-03-16 1:08 ` Paul Moore 2022-03-16 1:08 ` Paul Moore 2022-03-10 23:46 ` [PATCH v33 28/29] LSM: Add /proc attr entry for full LSM context Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler 2022-03-10 23:46 ` Casey Schaufler [this message] 2022-03-10 23:46 ` [PATCH v33 29/29] AppArmor: Remove the exclusive flag Casey Schaufler
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