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, sds@tycho.nsa.gov Subject: [PATCH v21 23/23] AppArmor: Remove the exclusive flag Date: Mon, 12 Oct 2020 13:19:24 -0700 [thread overview] Message-ID: <20201012201924.71463-24-casey@schaufler-ca.com> (raw) In-Reply-To: <20201012201924.71463-1-casey@schaufler-ca.com> With the inclusion of the "display" 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 <sds@tycho.nsa.gov> 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 7ce570b0f491..4b7cbe9bb1be 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -1129,22 +1129,6 @@ 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 @@ -1248,8 +1232,6 @@ 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), @@ -1918,7 +1900,7 @@ 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, -- 2.24.1
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-audit@redhat.com, sds@tycho.nsa.gov Subject: [PATCH v21 23/23] AppArmor: Remove the exclusive flag Date: Mon, 12 Oct 2020 13:19:24 -0700 [thread overview] Message-ID: <20201012201924.71463-24-casey@schaufler-ca.com> (raw) In-Reply-To: <20201012201924.71463-1-casey@schaufler-ca.com> With the inclusion of the "display" 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 <sds@tycho.nsa.gov> 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 7ce570b0f491..4b7cbe9bb1be 100644 --- a/security/apparmor/lsm.c +++ b/security/apparmor/lsm.c @@ -1129,22 +1129,6 @@ 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 @@ -1248,8 +1232,6 @@ 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), @@ -1918,7 +1900,7 @@ 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, -- 2.24.1 -- Linux-audit mailing list Linux-audit@redhat.com https://www.redhat.com/mailman/listinfo/linux-audit
next prev parent reply other threads:[~2020-10-12 20:44 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top [not found] <20201012201924.71463-1-casey.ref@schaufler-ca.com> 2020-10-12 20:19 ` [PATCH v21 00/23] LSM: Module stacking for AppArmor Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 01/23] LSM: Infrastructure management of the sock security Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 02/23] LSM: Create and manage the lsmblob data structure Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 03/23] LSM: Use lsmblob in security_audit_rule_match Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 04/23] LSM: Use lsmblob in security_kernel_act_as Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 05/23] LSM: Use lsmblob in security_secctx_to_secid Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 06/23] LSM: Use lsmblob in security_secid_to_secctx Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 07/23] LSM: Use lsmblob in security_ipc_getsecid Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 08/23] LSM: Use lsmblob in security_task_getsecid Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 09/23] LSM: Use lsmblob in security_inode_getsecid Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 10/23] LSM: Use lsmblob in security_cred_getsecid Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 11/23] IMA: Change internal interfaces to use lsmblobs Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 12/23] LSM: Specify which LSM to display Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 13/23] LSM: Ensure the correct LSM context releaser Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 14/23] LSM: Use lsmcontext in security_secid_to_secctx Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 15/23] LSM: Use lsmcontext in security_inode_getsecctx Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 16/23] LSM: security_secid_to_secctx in netlink netfilter Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 17/23] NET: Store LSM netlabel data in a lsmblob Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 18/23] LSM: Verify LSM display sanity in binder Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 19/23] audit: add support for non-syscall auxiliary records Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 20/23] Audit: Add new record for multiple process LSM attributes Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 21/23] Audit: Add a new record for multiple object " Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` [PATCH v21 22/23] LSM: Add /proc attr entry for full LSM context Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler 2020-10-12 20:19 ` Casey Schaufler [this message] 2020-10-12 20:19 ` [PATCH v21 23/23] AppArmor: Remove the exclusive flag Casey Schaufler 2020-10-29 11:26 ` [PATCH v21 00/23] LSM: Module stacking for AppArmor John Johansen 2020-10-29 11:26 ` John Johansen
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