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security/integrity: constify some read-only data

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Constify some static data that is never modified,
so that it is placed in .rodata.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Eric Biggers
2018-09-07 13:22:23 -07:00
committed by Mimi Zohar
parent 691115c351
commit b2724d5802
8 changed files with 16 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
security/integrity/ima/ima.h
View File

@@ -88,7 +88,7 @@ struct ima_template_desc {
char *name;
char *fmt;
int num_fields;
struct ima_template_field **fields;
const struct ima_template_field **fields;
};
struct ima_template_entry {

3
security/integrity/ima/ima_api.c
View File

@@ -51,7 +51,8 @@ int ima_alloc_init_template(struct ima_event_data *event_data,
(*entry)->template_desc = template_desc;
for (i = 0; i < template_desc->num_fields; i++) {
struct ima_template_field *field = template_desc->fields[i];
const struct ima_template_field *field =
template_desc->fields[i];
u32 len;
result = field->field_init(event_data,

3
security/integrity/ima/ima_fs.c
View File

@@ -179,7 +179,8 @@ int ima_measurements_show(struct seq_file *m, void *v)
/* 6th: template specific data */
for (i = 0; i < e->template_desc->num_fields; i++) {
enum ima_show_type show = IMA_SHOW_BINARY;
struct ima_template_field *field = e->template_desc->fields[i];
const struct ima_template_field *field =
e->template_desc->fields[i];
if (is_ima_template && strcmp(field->field_id, "d") == 0)
show = IMA_SHOW_BINARY_NO_FIELD_LEN;

2
security/integrity/ima/ima_init.c
View File

@@ -25,7 +25,7 @@
#include "ima.h"
/* name for boot aggregate entry */
static const char *boot_aggregate_name = "boot_aggregate";
static const char boot_aggregate_name[] = "boot_aggregate";
struct tpm_chip *ima_tpm_chip;
/* Add the boot aggregate to the IMA measurement list and extend

2
security/integrity/ima/ima_main.c
View File

@@ -440,7 +440,7 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id)
return 0;
}
static int read_idmap[READING_MAX_ID] = {
static const int read_idmap[READING_MAX_ID] = {
[READING_FIRMWARE] = FIRMWARE_CHECK,
[READING_FIRMWARE_PREALLOC_BUFFER] = FIRMWARE_CHECK,
[READING_MODULE] = MODULE_CHECK,

11
security/integrity/ima/ima_template.c
View File

@@ -32,7 +32,7 @@ static struct ima_template_desc builtin_templates[] = {
static LIST_HEAD(defined_templates);
static DEFINE_SPINLOCK(template_list);
static struct ima_template_field supported_fields[] = {
static const struct ima_template_field supported_fields[] = {
{.field_id = "d", .field_init = ima_eventdigest_init,
.field_show = ima_show_template_digest},
{.field_id = "n", .field_init = ima_eventname_init,
@@ -49,7 +49,7 @@ static struct ima_template_field supported_fields[] = {
static struct ima_template_desc *ima_template;
static struct ima_template_desc *lookup_template_desc(const char *name);
static int template_desc_init_fields(const char *template_fmt,
struct ima_template_field ***fields,
const struct ima_template_field ***fields,
int *num_fields);
static int __init ima_template_setup(char *str)
@@ -125,7 +125,8 @@ static struct ima_template_desc *lookup_template_desc(const char *name)
return found ? template_desc : NULL;
}
static struct ima_template_field *lookup_template_field(const char *field_id)
static const struct ima_template_field *
lookup_template_field(const char *field_id)
{
int i;
@@ -153,11 +154,11 @@ static int template_fmt_size(const char *template_fmt)
}
static int template_desc_init_fields(const char *template_fmt,
struct ima_template_field ***fields,
const struct ima_template_field ***fields,
int *num_fields)
{
const char *template_fmt_ptr;
struct ima_template_field *found_fields[IMA_TEMPLATE_NUM_FIELDS_MAX];
const struct ima_template_field *found_fields[IMA_TEMPLATE_NUM_FIELDS_MAX];
int template_num_fields;
int i, len;