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Diffstat (limited to 'security/integrity/ima/ima_main.c')
-rw-r--r--security/integrity/ima/ima_main.c15
1 files changed, 9 insertions, 6 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 5da0b9c00072..f76488162c1e 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -339,6 +339,13 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id)
return 0;
}
+static int read_idmap[READING_MAX_ID] = {
+ [READING_FIRMWARE] = FIRMWARE_CHECK,
+ [READING_MODULE] = MODULE_CHECK,
+ [READING_KEXEC_IMAGE] = KEXEC_KERNEL_CHECK,
+ [READING_KEXEC_INITRAMFS] = KEXEC_INITRAMFS_CHECK,
+};
+
/**
* ima_post_read_file - in memory collect/appraise/audit measurement
* @file: pointer to the file to be measured/appraised/audit
@@ -355,7 +362,7 @@ int ima_read_file(struct file *file, enum kernel_read_file_id read_id)
int ima_post_read_file(struct file *file, void *buf, loff_t size,
enum kernel_read_file_id read_id)
{
- enum ima_hooks func = FILE_CHECK;
+ enum ima_hooks func;
if (!file && read_id == READING_FIRMWARE) {
if ((ima_appraise & IMA_APPRAISE_FIRMWARE) &&
@@ -373,11 +380,7 @@ int ima_post_read_file(struct file *file, void *buf, loff_t size,
return 0;
}
- if (read_id == READING_FIRMWARE)
- func = FIRMWARE_CHECK;
- else if (read_id == READING_MODULE)
- func = MODULE_CHECK;
-
+ func = read_idmap[read_id] ?: FILE_CHECK;
return process_measurement(file, buf, size, MAY_READ, func, 0);
}