linux-kernel - Re: [PATCH V8 2/3] Define a new ima template field buf

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Date:   Thu, 13 Jun 2019 15:59:40 -0400
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Prakhar Srivastava <prsriva02@...il.com>,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     roberto.sassu@...wei.com, vgoyal@...hat.com
Subject: Re: [PATCH V8 2/3] Define a new ima template field buf

On Wed, 2019-06-12 at 15:15 -0700, Prakhar Srivastava wrote:

As before, the patch title needs to be prefixed with "ima: ".

>  /* IMA template field data definition */
> diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
> index ea7d8cbf712f..83ca99d65e4b 100644
> --- a/security/integrity/ima/ima_api.c
> +++ b/security/integrity/ima/ima_api.c
> @@ -140,7 +140,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
>  	struct ima_template_entry *entry;
>  	struct inode *inode = file_inode(file);
>  	struct ima_event_data event_data = {iint, file, filename, NULL, 0,
> -					    cause};
> +					    cause, NULL, 0};

This change here and

>  	int violation = 1;
>  	int result;
>  
> @@ -296,7 +296,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
>  	struct inode *inode = file_inode(file);
>  	struct ima_template_entry *entry;
>  	struct ima_event_data event_data = {iint, file, filename, xattr_value,
> -					    xattr_len, NULL};
> +					    xattr_len, NULL, NULL, 0};

here and 

>  	int violation = 0;
>  
>  	if (iint->measured_pcrs & (0x1 << pcr))
> diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
> index 993d0f1915ff..c8591406c0e2 100644
> --- a/security/integrity/ima/ima_init.c
> +++ b/security/integrity/ima/ima_init.c
> @@ -50,7 +50,7 @@ static int __init ima_add_boot_aggregate(void)
>  	struct ima_template_entry *entry;
>  	struct integrity_iint_cache tmp_iint, *iint = &tmp_iint;
>  	struct ima_event_data event_data = {iint, NULL, boot_aggregate_name,
> -					    NULL, 0, NULL};
> +					    NULL, 0, NULL, NULL, 0};

here, don't belong in this patch.  It belongs in "IMA: support for per
policy rule template formats", in case it should ever be backported.
 Please post this as a separate patch, that will be squashed with
"IMA: support for per policy rule template formats".

>  	int result = -ENOMEM;
>  	int violation = 0;
>  	struct {


> diff --git a/security/integrity/ima/ima_template_lib.h b/security/integrity/ima/ima_template_lib.h
> index 6a3d8b831deb..f0178bc60c55 100644
> --- a/security/integrity/ima/ima_template_lib.h
> +++ b/security/integrity/ima/ima_template_lib.h
> @@ -29,6 +29,8 @@ void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
>  			      struct ima_field_data *field_data);
>  void ima_show_template_sig(struct seq_file *m, enum ima_show_type show,
>  			   struct ima_field_data *field_data);
> +void ima_show_template_buf(struct seq_file *m, enum ima_show_type show,
> +				struct ima_field_data *field_data);

Formatting ...

>  int ima_parse_buf(void *bufstartp, void *bufendp, void **bufcurp,
>  		  int maxfields, struct ima_field_data *fields, int *curfields,
>  		  unsigned long *len_mask, int enforce_mask, char *bufname);
> @@ -42,4 +44,6 @@ int ima_eventname_ng_init(struct ima_event_data *event_data,
>  			  struct ima_field_data *field_data);
>  int ima_eventsig_init(struct ima_event_data *event_data,
>  		      struct ima_field_data *field_data);
> +int ima_eventbuf_init(struct ima_event_data *event_data,
> +				struct ima_field_data *field_data);

Formatting ...

>  #endif /* __LINUX_IMA_TEMPLATE_LIB_H */