Messages in this thread Patch in this message | | | From | Mimi Zohar <> | Subject | [PATCH 10/14] fs: add evm_inode_post_init calls | Date | Wed, 21 Apr 2010 17:49:50 -0400 |
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After creating the initial LSM security extended attribute, call evm_inode_post_init_security() to create the 'security.evm' extended attribute.
(Support for other fs still needed.)
Signed-off-by: Mimi Zohar <zohar@us.ibm.com> Acked-by: Serge Hallyn <serue@us.ibm.com>
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c index c815584..3987a1b 100644 --- a/fs/ext2/xattr_security.c +++ b/fs/ext2/xattr_security.c @@ -8,6 +8,7 @@ #include <linux/fs.h> #include <linux/ext2_fs.h> #include <linux/security.h> +#include <linux/evm.h> #include "xattr.h" static size_t @@ -49,21 +50,37 @@ int ext2_init_security(struct inode *inode, struct inode *dir) { int err; - size_t len; - void *value; - char *name; + struct xattr lsm_xattr; + struct xattr evm_xattr; - err = security_inode_init_security(inode, dir, &name, &value, &len); + err = security_inode_init_security(inode, dir, &lsm_xattr.name, + &lsm_xattr.value, + &lsm_xattr.value_len); if (err) { if (err == -EOPNOTSUPP) return 0; return err; } err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, - name, value, len, 0); - kfree(name); - kfree(value); + lsm_xattr.name, lsm_xattr.value, + lsm_xattr.value_len, 0); + if (err < 0) + goto out; + + err = evm_inode_post_init_security(inode, &lsm_xattr, &evm_xattr); + if (err) + goto out; + err = ext2_xattr_set(inode, EXT2_XATTR_INDEX_SECURITY, + evm_xattr.name, evm_xattr.value, + evm_xattr.value_len, 0); + kfree(evm_xattr.value); +out: + kfree(lsm_xattr.name); + kfree(lsm_xattr.value); + if (err == -EOPNOTSUPP) + return 0; return err; + } struct xattr_handler ext2_xattr_security_handler = { diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c index 4743487..eba57a9 100644 --- a/fs/ext3/xattr_security.c +++ b/fs/ext3/xattr_security.c @@ -9,6 +9,7 @@ #include <linux/ext3_jbd.h> #include <linux/ext3_fs.h> #include <linux/security.h> +#include <linux/evm.h> #include "xattr.h" static size_t @@ -51,20 +52,35 @@ int ext3_init_security(handle_t *handle, struct inode *inode, struct inode *dir) { int err; - size_t len; - void *value; - char *name; + struct xattr lsm_xattr; + struct xattr evm_xattr; - err = security_inode_init_security(inode, dir, &name, &value, &len); + err = security_inode_init_security(inode, dir, &lsm_xattr.name, + &lsm_xattr.value, + &lsm_xattr.value_len); if (err) { if (err == -EOPNOTSUPP) return 0; return err; } err = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_SECURITY, - name, value, len, 0); - kfree(name); - kfree(value); + lsm_xattr.name, lsm_xattr.value, + lsm_xattr.value_len, 0); + if (err < 0) + goto out; + + err = evm_inode_post_init_security(inode, &lsm_xattr, &evm_xattr); + if (err) + goto out; + err = ext3_xattr_set_handle(handle, inode, EXT3_XATTR_INDEX_SECURITY, + evm_xattr.name, evm_xattr.value, + evm_xattr.value_len, 0); + kfree(evm_xattr.value); +out: + kfree(lsm_xattr.name); + kfree(lsm_xattr.value); + if (err == -EOPNOTSUPP) + return 0; return err; } diff --git a/fs/ext4/xattr_security.c b/fs/ext4/xattr_security.c index 983c253..d8ecbee 100644 --- a/fs/ext4/xattr_security.c +++ b/fs/ext4/xattr_security.c @@ -7,6 +7,7 @@ #include <linux/string.h> #include <linux/fs.h> #include <linux/security.h> +#include <linux/evm.h> #include "ext4_jbd2.h" #include "ext4.h" #include "xattr.h" @@ -51,20 +52,35 @@ int ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir) { int err; - size_t len; - void *value; - char *name; + struct xattr lsm_xattr; + struct xattr evm_xattr; - err = security_inode_init_security(inode, dir, &name, &value, &len); + err = security_inode_init_security(inode, dir, &lsm_xattr.name, + &lsm_xattr.value, + &lsm_xattr.value_len); if (err) { if (err == -EOPNOTSUPP) return 0; return err; } err = ext4_xattr_set_handle(handle, inode, EXT4_XATTR_INDEX_SECURITY, - name, value, len, 0); - kfree(name); - kfree(value); + lsm_xattr.name, lsm_xattr.value, + lsm_xattr.value_len, 0); + if (err < 0) + goto out; + + err = evm_inode_post_init_security(inode, &lsm_xattr, &evm_xattr); + if (err) + goto out; + err = ext4_xattr_set_handle(handle, inode, EXT4_XATTR_INDEX_SECURITY, + evm_xattr.name, evm_xattr.value, + evm_xattr.value_len, 0); + kfree(evm_xattr.value); +out: + kfree(lsm_xattr.name); + kfree(lsm_xattr.value); + if (err == -EOPNOTSUPP) + return 0; return err; } -- 1.6.6.1
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