From: Mimi Zohar <zohar@linux.ibm.com>
To: Roberto Sassu <roberto.sassu@huaweicloud.com>,
viro@zeniv.linux.org.uk, chuck.lever@oracle.com,
jlayton@kernel.org, dmitry.kasatkin@gmail.com,
paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com,
dhowells@redhat.com, jarkko@kernel.org,
stephen.smalley.work@gmail.com, eparis@parisplace.org,
casey@schaufler-ca.com, brauner@kernel.org
Cc: linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org,
linux-integrity@vger.kernel.org,
linux-security-module@vger.kernel.org, keyrings@vger.kernel.org,
selinux@vger.kernel.org, linux-kernel@vger.kernel.org,
stefanb@linux.ibm.com, Roberto Sassu <roberto.sassu@huawei.com>
Subject: Re: [PATCH 03/28] ima: Align ima_post_create_tmpfile() definition with LSM infrastructure
Date: Wed, 08 Mar 2023 10:15:25 -0500 [thread overview]
Message-ID: <502bd55cdbe47df40542f957f29f201502d7218f.camel@linux.ibm.com> (raw)
In-Reply-To: <20230303181842.1087717-4-roberto.sassu@huaweicloud.com>
Hi Roberto,
On Fri, 2023-03-03 at 19:18 +0100, Roberto Sassu wrote:
> From: Roberto Sassu <roberto.sassu@huawei.com>
>
> Change ima_post_create_tmpfile() definition, so that it can be registered
> as implementation of the post_create_tmpfile hook.
Since neither security_create_tmpfile() nor
security_post_create_tmpfile() already exist, why not pass a pointer to
the file to conform to the other file related security hooks?
Mimi
>
> Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
> ---
> fs/namei.c | 2 +-
> include/linux/ima.h | 7 +++++--
> security/integrity/ima/ima_main.c | 8 ++++++--
> 3 files changed, 12 insertions(+), 5 deletions(-)
>
> diff --git a/fs/namei.c b/fs/namei.c
> index b5a1ec29193..57727a1ae38 100644
> --- a/fs/namei.c
> +++ b/fs/namei.c
> @@ -3622,7 +3622,7 @@ static int vfs_tmpfile(struct mnt_idmap *idmap,
> inode->i_state |= I_LINKABLE;
> spin_unlock(&inode->i_lock);
> }
> - ima_post_create_tmpfile(idmap, inode);
> + ima_post_create_tmpfile(idmap, dir, file_dentry(file), mode);
> return 0;
> }
>
> diff --git a/include/linux/ima.h b/include/linux/ima.h
> index 179ce52013b..7535686a403 100644
> --- a/include/linux/ima.h
> +++ b/include/linux/ima.h
> @@ -19,7 +19,8 @@ extern enum hash_algo ima_get_current_hash_algo(void);
> extern int ima_bprm_check(struct linux_binprm *bprm);
> extern int ima_file_check(struct file *file, int mask);
> extern void ima_post_create_tmpfile(struct mnt_idmap *idmap,
> - struct inode *inode);
> + struct inode *dir, struct dentry *dentry,
> + umode_t mode);
> extern void ima_file_free(struct file *file);
> extern int ima_file_mmap(struct file *file, unsigned long reqprot,
> unsigned long prot, unsigned long flags);
> @@ -69,7 +70,9 @@ static inline int ima_file_check(struct file *file, int mask)
> }
>
> static inline void ima_post_create_tmpfile(struct mnt_idmap *idmap,
> - struct inode *inode)
> + struct inode *dir,
> + struct dentry *dentry,
> + umode_t mode)
> {
> }
>
> diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
> index 8941305376b..4a3d0c8bcba 100644
> --- a/security/integrity/ima/ima_main.c
> +++ b/security/integrity/ima/ima_main.c
> @@ -659,16 +659,20 @@ EXPORT_SYMBOL_GPL(ima_inode_hash);
> /**
> * ima_post_create_tmpfile - mark newly created tmpfile as new
> * @idmap: idmap of the mount the inode was found from
> - * @inode: inode of the newly created tmpfile
> + * @dir: inode structure of the parent of the new file
> + * @dentry: dentry structure of the new file
> + * @mode: mode of the new file
> *
> * No measuring, appraising or auditing of newly created tmpfiles is needed.
> * Skip calling process_measurement(), but indicate which newly, created
> * tmpfiles are in policy.
> */
> void ima_post_create_tmpfile(struct mnt_idmap *idmap,
> - struct inode *inode)
> + struct inode *dir, struct dentry *dentry,
> + umode_t mode)
> {
> struct integrity_iint_cache *iint;
> + struct inode *inode = dentry->d_inode;
> int must_appraise;
>
> if (!ima_policy_flag || !S_ISREG(inode->i_mode))
next prev parent reply other threads:[~2023-03-08 15:16 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-03 18:18 [PATCH 00/28] security: Move IMA and EVM to the LSM infrastructure Roberto Sassu
2023-03-03 18:18 ` [PATCH 01/28] ima: Align ima_inode_post_setattr() definition with " Roberto Sassu
2023-03-06 16:46 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 02/28] ima: Align ima_post_path_mknod() " Roberto Sassu
2023-03-06 16:52 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 03/28] ima: Align ima_post_create_tmpfile() " Roberto Sassu
2023-03-06 16:53 ` Stefan Berger
2023-03-08 15:15 ` Mimi Zohar [this message]
2023-03-09 9:11 ` Roberto Sassu
2023-03-03 18:18 ` [PATCH 04/28] ima: Align ima_file_mprotect() " Roberto Sassu
2023-03-06 16:56 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 05/28] ima: Align ima_inode_setxattr() " Roberto Sassu
2023-03-06 16:57 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 06/28] ima: Align ima_inode_removexattr() " Roberto Sassu
2023-03-06 16:58 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 07/28] ima: Align ima_post_read_file() " Roberto Sassu
2023-03-06 16:59 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 08/28] evm: Align evm_inode_post_setattr() " Roberto Sassu
2023-03-06 17:00 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 09/28] evm: Align evm_inode_setxattr() " Roberto Sassu
2023-03-06 17:01 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 10/28] evm: Align evm_inode_post_setxattr() " Roberto Sassu
2023-03-06 17:02 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 11/28] evm: Complete description of evm_inode_setattr() Roberto Sassu
2023-03-06 17:04 ` Stefan Berger
2023-03-07 8:58 ` Roberto Sassu
2023-03-03 18:18 ` [PATCH 12/28] fs: Fix description of vfs_tmpfile() Roberto Sassu
2023-03-06 10:28 ` Christian Brauner
2023-03-06 10:31 ` Roberto Sassu
2023-03-03 18:18 ` [PATCH 13/28] security: Align inode_setattr hook definition with EVM Roberto Sassu
2023-03-05 0:42 ` Casey Schaufler
2023-03-06 17:06 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 14/28] security: Introduce inode_post_setattr hook Roberto Sassu
2023-03-06 17:08 ` Stefan Berger
2023-03-08 15:19 ` Mimi Zohar
2023-03-03 18:18 ` [PATCH 15/28] security: Introduce inode_post_removexattr hook Roberto Sassu
2023-03-06 19:17 ` Stefan Berger
2023-03-08 15:43 ` Mimi Zohar
2023-03-09 13:07 ` Roberto Sassu
2023-08-30 9:31 ` Roberto Sassu
2023-08-30 9:53 ` Christian Brauner
2023-03-03 18:18 ` [PATCH 16/28] security: Introduce file_post_open hook Roberto Sassu
2023-03-06 19:24 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 17/28] security: Introduce file_pre_free_security hook Roberto Sassu
2023-03-06 19:26 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 18/28] security: Introduce path_post_mknod hook Roberto Sassu
2023-03-06 19:29 ` Stefan Berger
2023-03-08 15:47 ` Mimi Zohar
2023-03-03 18:18 ` [PATCH 19/28] security: Introduce inode_post_create_tmpfile hook Roberto Sassu
2023-03-06 19:35 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 20/28] security: Introduce inode_post_set_acl hook Roberto Sassu
2023-03-06 19:45 ` Stefan Berger
2023-03-03 18:18 ` [PATCH 21/28] security: Introduce inode_post_remove_acl hook Roberto Sassu
2023-03-06 15:22 ` Stefan Berger
2023-03-06 15:34 ` Roberto Sassu
2023-03-06 16:16 ` Stefan Berger
2023-03-06 16:50 ` Roberto Sassu
2023-03-03 18:18 ` [PATCH 22/28] security: Introduce key_post_create_or_update hook Roberto Sassu
2023-03-07 17:48 ` Stefan Berger
2023-03-08 15:49 ` Mimi Zohar
2023-03-03 18:25 ` [PATCH 23/28] security: Introduce LSM_ORDER_LAST Roberto Sassu
2023-03-07 18:04 ` Stefan Berger
2023-03-08 8:06 ` Roberto Sassu
2023-03-08 13:13 ` Mimi Zohar
2023-03-08 13:26 ` Roberto Sassu
2023-03-08 14:00 ` Mimi Zohar
2023-03-08 14:35 ` Roberto Sassu
2023-03-08 15:52 ` Mimi Zohar
2023-03-03 18:25 ` [PATCH 24/28] ima: Move to LSM infrastructure Roberto Sassu
2023-03-03 18:25 ` [PATCH 25/28] ima: Move IMA-Appraisal " Roberto Sassu
2023-03-03 18:26 ` [PATCH 26/28] evm: Move " Roberto Sassu
2023-03-04 21:36 ` Casey Schaufler
2023-03-06 9:21 ` Roberto Sassu
2023-03-07 16:54 ` Casey Schaufler
2023-03-07 16:57 ` Roberto Sassu
2023-03-03 18:26 ` [PATCH 27/28] integrity: Move integrity functions to the " Roberto Sassu
2023-03-03 18:26 ` [PATCH 28/28] integrity: Switch from rbtree to LSM-managed blob for integrity_iint_cache Roberto Sassu
2023-03-08 15:14 ` [PATCH 00/28] security: Move IMA and EVM to the LSM infrastructure Mimi Zohar
2023-03-08 16:23 ` Roberto Sassu
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