From: Casey Schaufler <casey@schaufler-ca.com>
To: jmorris@namei.org, linux-security-module@vger.kernel.org,
selinux@vger.kernel.org, casey.schaufler@intel.com
Cc: keescook@chromium.org, john.johansen@canonical.com,
penguin-kernel@i-love.sakura.ne.jp, paul@paul-moore.com,
sds@tycho.nsa.gov
Subject: [PATCH 17/59] LSM: Use lsm_export in security_secctx_to_secid
Date: Tue, 9 Apr 2019 12:18:06 -0700 [thread overview]
Message-ID: <20190409191848.1380-18-casey@schaufler-ca.com> (raw)
In-Reply-To: <20190409191848.1380-1-casey@schaufler-ca.com>
Convert security_secctx_to_secid to use the lsm_export structure
instead of a u32 secid. There is some scaffolding involved
that will be removed when the related data is updated.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---
include/linux/security.h | 5 +++--
kernel/cred.c | 4 +---
net/netfilter/nft_meta.c | 4 +++-
net/netfilter/xt_SECMARK.c | 5 +++--
net/netlabel/netlabel_unlabeled.c | 8 ++++++--
security/security.c | 11 ++++-------
6 files changed, 20 insertions(+), 17 deletions(-)
diff --git a/include/linux/security.h b/include/linux/security.h
index e3f5c61b9b2c..991d2d2e290e 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -437,7 +437,8 @@ int security_setprocattr(const char *lsm, const char *name, void *value,
int security_netlink_send(struct sock *sk, struct sk_buff *skb);
int security_ismaclabel(const char *name);
int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
-int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
+int security_secctx_to_secid(const char *secdata, u32 seclen,
+ struct lsm_export *l);
void security_release_secctx(char *secdata, u32 seclen);
void security_inode_invalidate_secctx(struct inode *inode);
@@ -1220,7 +1221,7 @@ static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *secle
static inline int security_secctx_to_secid(const char *secdata,
u32 seclen,
- u32 *secid)
+ struct lsm_export *l)
{
return -EOPNOTSUPP;
}
diff --git a/kernel/cred.c b/kernel/cred.c
index 40a3fde22667..7792538b1ca6 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -725,14 +725,12 @@ EXPORT_SYMBOL(set_security_override);
int set_security_override_from_ctx(struct cred *new, const char *secctx)
{
struct lsm_export le;
- u32 secid;
int ret;
- ret = security_secctx_to_secid(secctx, strlen(secctx), &secid);
+ ret = security_secctx_to_secid(secctx, strlen(secctx), &le);
if (ret < 0)
return ret;
- lsm_export_to_all(&le, secid);
return set_security_override(new, &le);
}
EXPORT_SYMBOL(set_security_override_from_ctx);
diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 987d2d6ce624..598bea8e4799 100644
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -576,13 +576,15 @@ static const struct nla_policy nft_secmark_policy[NFTA_SECMARK_MAX + 1] = {
static int nft_secmark_compute_secid(struct nft_secmark *priv)
{
+ struct lsm_export le;
u32 tmp_secid = 0;
int err;
- err = security_secctx_to_secid(priv->ctx, strlen(priv->ctx), &tmp_secid);
+ err = security_secctx_to_secid(priv->ctx, strlen(priv->ctx), &le);
if (err)
return err;
+ lsm_export_secid(&le, &tmp_secid);
if (!tmp_secid)
return -ENOENT;
diff --git a/net/netfilter/xt_SECMARK.c b/net/netfilter/xt_SECMARK.c
index f16202d26c20..2def8d8898e6 100644
--- a/net/netfilter/xt_SECMARK.c
+++ b/net/netfilter/xt_SECMARK.c
@@ -49,13 +49,13 @@ secmark_tg(struct sk_buff *skb, const struct xt_action_param *par)
static int checkentry_lsm(struct xt_secmark_target_info *info)
{
+ struct lsm_export le;
int err;
info->secctx[SECMARK_SECCTX_MAX - 1] = '\0';
info->secid = 0;
- err = security_secctx_to_secid(info->secctx, strlen(info->secctx),
- &info->secid);
+ err = security_secctx_to_secid(info->secctx, strlen(info->secctx), &le);
if (err) {
if (err == -EINVAL)
pr_info_ratelimited("invalid security context \'%s\'\n",
@@ -63,6 +63,7 @@ static int checkentry_lsm(struct xt_secmark_target_info *info)
return err;
}
+ lsm_export_secid(&le, &info->secid);
if (!info->secid) {
pr_info_ratelimited("unable to map security context \'%s\'\n",
info->secctx);
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index c92894c3e40a..fc38934ccb35 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -896,6 +896,7 @@ static int netlbl_unlabel_staticadd(struct sk_buff *skb,
void *mask;
u32 addr_len;
u32 secid;
+ struct lsm_export le;
struct netlbl_audit audit_info;
/* Don't allow users to add both IPv4 and IPv6 addresses for a
@@ -919,10 +920,11 @@ static int netlbl_unlabel_staticadd(struct sk_buff *skb,
ret_val = security_secctx_to_secid(
nla_data(info->attrs[NLBL_UNLABEL_A_SECCTX]),
nla_len(info->attrs[NLBL_UNLABEL_A_SECCTX]),
- &secid);
+ &le);
if (ret_val != 0)
return ret_val;
+ lsm_export_secid(&le, &secid);
return netlbl_unlhsh_add(&init_net,
dev_name, addr, mask, addr_len, secid,
&audit_info);
@@ -947,6 +949,7 @@ static int netlbl_unlabel_staticadddef(struct sk_buff *skb,
void *mask;
u32 addr_len;
u32 secid;
+ struct lsm_export le;
struct netlbl_audit audit_info;
/* Don't allow users to add both IPv4 and IPv6 addresses for a
@@ -968,10 +971,11 @@ static int netlbl_unlabel_staticadddef(struct sk_buff *skb,
ret_val = security_secctx_to_secid(
nla_data(info->attrs[NLBL_UNLABEL_A_SECCTX]),
nla_len(info->attrs[NLBL_UNLABEL_A_SECCTX]),
- &secid);
+ &le);
if (ret_val != 0)
return ret_val;
+ lsm_export_secid(&le, &secid);
return netlbl_unlhsh_add(&init_net,
NULL, addr, mask, addr_len, secid,
&audit_info);
diff --git a/security/security.c b/security/security.c
index d8300a6400c3..868e9ae6b48c 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1967,14 +1967,11 @@ int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
}
EXPORT_SYMBOL(security_secid_to_secctx);
-int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
+int security_secctx_to_secid(const char *secdata, u32 seclen,
+ struct lsm_export *l)
{
- struct lsm_export data = { .flags = LSM_EXPORT_NONE };
- int rc;
-
- rc = call_int_hook(secctx_to_secid, 0, secdata, seclen, &data);
- lsm_export_secid(&data, secid);
- return rc;
+ lsm_export_init(l);
+ return call_int_hook(secctx_to_secid, 0, secdata, seclen, l);
}
EXPORT_SYMBOL(security_secctx_to_secid);
--
2.19.1
next prev parent reply other threads:[~2019-04-09 19:19 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-09 19:17 [PATCH 00/59] LSM: Module stacking for AppArmor Casey Schaufler
2019-04-09 19:17 ` [PATCH 01/59] LSM: Infrastructure management of the superblock Casey Schaufler
2019-04-09 19:17 ` [PATCH 02/59] LSM: Infrastructure management of the sock security Casey Schaufler
2019-04-09 19:17 ` [PATCH 03/59] LSM: Infrastructure management of the key security blob Casey Schaufler
2019-04-09 19:17 ` [PATCH 04/59] LSM: Create an lsm_export data structure Casey Schaufler
2019-04-09 19:17 ` [PATCH 05/59] LSM: Use lsm_export in the inode_getsecid hooks Casey Schaufler
2019-04-09 19:17 ` [PATCH 06/59] LSM: Use lsm_export in the cred_getsecid hooks Casey Schaufler
2019-04-09 19:17 ` [PATCH 07/59] LSM: Use lsm_export in the ipc_getsecid and task_getsecid hooks Casey Schaufler
2019-04-09 19:17 ` [PATCH 08/59] LSM: Use lsm_export in the kernel_ask_as hooks Casey Schaufler
2019-04-09 19:17 ` [PATCH 09/59] LSM: Use lsm_export in the getpeersec_dgram hooks Casey Schaufler
2019-04-09 19:17 ` [PATCH 10/59] LSM: Use lsm_export in the audit_rule_match hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 11/59] LSM: Fix logical operation in lsm_export checks Casey Schaufler
2019-04-09 19:18 ` [PATCH 12/59] LSM: Use lsm_export in the secid_to_secctx hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 13/59] LSM: Use lsm_export in the secctx_to_secid hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 14/59] LSM: Use lsm_export in security_audit_rule_match Casey Schaufler
2019-04-09 19:18 ` [PATCH 15/59] LSM: Use lsm_export in security_kernel_act_as Casey Schaufler
2019-04-09 19:18 ` [PATCH 16/59] LSM: Use lsm_export in security_socket_getpeersec_dgram Casey Schaufler
2019-04-09 19:18 ` Casey Schaufler [this message]
2019-04-09 19:18 ` [PATCH 18/59] LSM: Use lsm_export in security_secid_to_secctx Casey Schaufler
2019-04-09 19:18 ` [PATCH 19/59] LSM: Use lsm_export in security_ipc_getsecid Casey Schaufler
2019-04-09 19:18 ` [PATCH 20/59] LSM: Use lsm_export in security_task_getsecid Casey Schaufler
2019-04-09 19:18 ` [PATCH 21/59] LSM: Use lsm_export in security_inode_getsecid Casey Schaufler
2019-04-09 19:18 ` [PATCH 22/59] LSM: Use lsm_export in security_cred_getsecid Casey Schaufler
2019-04-09 19:18 ` [PATCH 23/59] Audit: Change audit_sig_sid to audit_sig_lsm Casey Schaufler
2019-04-09 19:18 ` [PATCH 24/59] Audit: Convert target_sid to an lsm_export structure Casey Schaufler
2019-04-09 19:18 ` [PATCH 25/59] Audit: Convert osid " Casey Schaufler
2019-04-09 19:18 ` [PATCH 26/59] IMA: Clean out lsm_export scaffolding Casey Schaufler
2019-04-09 19:18 ` [PATCH 27/59] NET: Store LSM access information in the socket blob for UDS Casey Schaufler
2019-04-09 19:18 ` [PATCH 28/59] NET: Remove scaffolding on secmarks Casey Schaufler
2019-04-09 19:18 ` [PATCH 29/59] NET: Remove scaffolding on new secmarks Casey Schaufler
2019-04-09 19:18 ` [PATCH 30/59] NET: Remove netfilter scaffolding for lsm_export Casey Schaufler
2019-04-09 19:18 ` [PATCH 31/59] Netlabel: Replace secids with lsm_export Casey Schaufler
2019-04-09 19:18 ` [PATCH 32/59] LSM: Remove lsm_export scaffolding functions Casey Schaufler
2019-04-09 19:18 ` [PATCH 33/59] IMA: FIXUP prototype using lsm_export Casey Schaufler
2019-04-09 19:18 ` [PATCH 34/59] Smack: Restore the release_secctx hook Casey Schaufler
2019-04-09 19:18 ` [PATCH 35/59] AppArmor: Remove unnecessary hook stub Casey Schaufler
2019-04-09 19:18 ` [PATCH 36/59] LSM: Limit calls to certain module hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 37/59] LSM: Create a data structure for a security context Casey Schaufler
2019-04-09 19:18 ` [PATCH 38/59] LSM: Use lsm_context in secid_to_secctx hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 39/59] LSM: Use lsm_context in secctx_to_secid hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 40/59] LSM: Use lsm_context in inode_getsecctx hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 41/59] LSM: Use lsm_context in inode_notifysecctx hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 42/59] LSM: Use lsm_context in dentry_init_security hooks Casey Schaufler
2019-04-09 19:18 ` [PATCH 43/59] LSM: Use lsm_context in security_dentry_init_security Casey Schaufler
2019-04-09 19:18 ` [PATCH 44/59] LSM: Use lsm_context in security_inode_notifysecctx Casey Schaufler
2019-04-09 19:18 ` [PATCH 45/59] LSM: Use lsm_context in security_inode_getsecctx Casey Schaufler
2019-04-09 19:18 ` [PATCH 46/59] LSM: Use lsm_context in security_secctx_to_secid Casey Schaufler
2019-04-09 19:18 ` [PATCH 47/59] LSM: Use lsm_context in release_secctx hooks Casey Schaufler
2019-04-09 19:58 [PATCH 00/59] LSM: Module stacking for AppArmor Casey Schaufler
2019-04-09 19:58 ` [PATCH 17/59] LSM: Use lsm_export in security_secctx_to_secid Casey Schaufler
2019-04-09 21:38 [PATCH 00/59] LSM: Module stacking for AppArmor Casey Schaufler
2019-04-09 21:39 ` [PATCH 17/59] LSM: Use lsm_export in security_secctx_to_secid Casey Schaufler
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