[v5,05/23] ima: Align ima_post_read_file() definition with LSM infrastructure

Message ID 20231107134012.682009-6-roberto.sassu@huaweicloud.com
State New
Headers
Series security: Move IMA and EVM to the LSM infrastructure |

Commit Message

Roberto Sassu Nov. 7, 2023, 1:39 p.m. UTC
  From: Roberto Sassu <roberto.sassu@huawei.com>

Change ima_post_read_file() definition, by making "void *buf" a
"char *buf", so that it can be registered as implementation of the
post_read_file hook.

Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
---
 include/linux/ima.h               | 4 ++--
 security/integrity/ima/ima_main.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
  

Comments

Casey Schaufler Nov. 7, 2023, 5:25 p.m. UTC | #1
On 11/7/2023 5:39 AM, Roberto Sassu wrote:
> From: Roberto Sassu <roberto.sassu@huawei.com>
>
> Change ima_post_read_file() definition, by making "void *buf" a
> "char *buf", so that it can be registered as implementation of the
> post_read_file hook.
>
> Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>

Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>


> ---
>  include/linux/ima.h               | 4 ++--
>  security/integrity/ima/ima_main.c | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/include/linux/ima.h b/include/linux/ima.h
> index 678a03fddd7e..31ef6c3c3207 100644
> --- a/include/linux/ima.h
> +++ b/include/linux/ima.h
> @@ -30,7 +30,7 @@ extern int ima_post_load_data(char *buf, loff_t size,
>  			      enum kernel_load_data_id id, char *description);
>  extern int ima_read_file(struct file *file, enum kernel_read_file_id id,
>  			 bool contents);
> -extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
> +extern int ima_post_read_file(struct file *file, char *buf, loff_t size,
>  			      enum kernel_read_file_id id);
>  extern void ima_post_path_mknod(struct mnt_idmap *idmap,
>  				struct dentry *dentry);
> @@ -108,7 +108,7 @@ static inline int ima_read_file(struct file *file, enum kernel_read_file_id id,
>  	return 0;
>  }
>  
> -static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
> +static inline int ima_post_read_file(struct file *file, char *buf, loff_t size,
>  				     enum kernel_read_file_id id)
>  {
>  	return 0;
> diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
> index b3f5e8401056..02021ee467d3 100644
> --- a/security/integrity/ima/ima_main.c
> +++ b/security/integrity/ima/ima_main.c
> @@ -803,7 +803,7 @@ const int read_idmap[READING_MAX_ID] = {
>   * On success return 0.  On integrity appraisal error, assuming the file
>   * is in policy and IMA-appraisal is in enforcing mode, return -EACCES.
>   */
> -int ima_post_read_file(struct file *file, void *buf, loff_t size,
> +int ima_post_read_file(struct file *file, char *buf, loff_t size,
>  		       enum kernel_read_file_id read_id)
>  {
>  	enum ima_hooks func;
  

Patch

diff --git a/include/linux/ima.h b/include/linux/ima.h
index 678a03fddd7e..31ef6c3c3207 100644
--- a/include/linux/ima.h
+++ b/include/linux/ima.h
@@ -30,7 +30,7 @@  extern int ima_post_load_data(char *buf, loff_t size,
 			      enum kernel_load_data_id id, char *description);
 extern int ima_read_file(struct file *file, enum kernel_read_file_id id,
 			 bool contents);
-extern int ima_post_read_file(struct file *file, void *buf, loff_t size,
+extern int ima_post_read_file(struct file *file, char *buf, loff_t size,
 			      enum kernel_read_file_id id);
 extern void ima_post_path_mknod(struct mnt_idmap *idmap,
 				struct dentry *dentry);
@@ -108,7 +108,7 @@  static inline int ima_read_file(struct file *file, enum kernel_read_file_id id,
 	return 0;
 }
 
-static inline int ima_post_read_file(struct file *file, void *buf, loff_t size,
+static inline int ima_post_read_file(struct file *file, char *buf, loff_t size,
 				     enum kernel_read_file_id id)
 {
 	return 0;
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index b3f5e8401056..02021ee467d3 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -803,7 +803,7 @@  const int read_idmap[READING_MAX_ID] = {
  * On success return 0.  On integrity appraisal error, assuming the file
  * is in policy and IMA-appraisal is in enforcing mode, return -EACCES.
  */
-int ima_post_read_file(struct file *file, void *buf, loff_t size,
+int ima_post_read_file(struct file *file, char *buf, loff_t size,
 		       enum kernel_read_file_id read_id)
 {
 	enum ima_hooks func;