ima: pass the filename argument up to ima_add_template_entry()
Pass the filename argument to ima_add_template_entry() in order to
eliminate a dependency on template specific data (third argument of
integrity_audit_msg).
This change is required because, with the new template management
mechanism, the generation of a new measurement entry will be performed
by new specific functions (introduced in next patches) and the current IMA
code will not be aware anymore of how data is stored in the entry payload.
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index d7bec6f..27d2ffb 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -69,7 +69,8 @@
void ima_fs_cleanup(void);
int ima_inode_alloc(struct inode *inode);
int ima_add_template_entry(struct ima_template_entry *entry, int violation,
- const char *op, struct inode *inode);
+ const char *op, struct inode *inode,
+ const unsigned char *filename);
int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
int ima_calc_buffer_hash(const void *data, int len,
struct ima_digest_data *hash);
@@ -107,7 +108,7 @@
void ima_audit_measurement(struct integrity_iint_cache *iint,
const unsigned char *filename);
int ima_store_template(struct ima_template_entry *entry, int violation,
- struct inode *inode);
+ struct inode *inode, const unsigned char *filename);
void ima_template_show(struct seq_file *m, void *e, enum ima_show_type show);
const char *ima_d_path(struct path *path, char **pathbuf);
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 98160a3..a0fe504 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -40,7 +40,8 @@
* Returns 0 on success, error code otherwise
*/
int ima_store_template(struct ima_template_entry *entry,
- int violation, struct inode *inode)
+ int violation, struct inode *inode,
+ const unsigned char *filename)
{
const char *op = "add_template_measure";
const char *audit_cause = "hashing_error";
@@ -67,7 +68,7 @@
}
memcpy(entry->digest, hash.hdr.digest, hash.hdr.length);
}
- result = ima_add_template_entry(entry, violation, op, inode);
+ result = ima_add_template_entry(entry, violation, op, inode, filename);
return result;
}
@@ -96,7 +97,7 @@
}
memset(&entry->template, 0, sizeof(entry->template));
strncpy(entry->template.file_name, filename, IMA_EVENT_NAME_LEN_MAX);
- result = ima_store_template(entry, violation, inode);
+ result = ima_store_template(entry, violation, inode, filename);
if (result < 0)
kfree(entry);
err_out:
@@ -248,7 +249,7 @@
(strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ?
file->f_dentry->d_name.name : filename);
- result = ima_store_template(entry, violation, inode);
+ result = ima_store_template(entry, violation, inode, filename);
if (!result || result == -EEXIST)
iint->flags |= IMA_MEASURED;
if (result < 0)
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 77cd500..d42fac3 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -71,7 +71,8 @@
memcpy(entry->template.digest, hash.hdr.digest,
hash.hdr.length);
}
- result = ima_store_template(entry, violation, NULL);
+ result = ima_store_template(entry, violation, NULL,
+ boot_aggregate_name);
if (result < 0)
kfree(entry);
return;
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index e63ff33..d85e997 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -104,7 +104,8 @@
* and extend the pcr.
*/
int ima_add_template_entry(struct ima_template_entry *entry, int violation,
- const char *op, struct inode *inode)
+ const char *op, struct inode *inode,
+ const unsigned char *filename)
{
u8 digest[TPM_DIGEST_SIZE];
const char *audit_cause = "hash_added";
@@ -141,8 +142,7 @@
}
out:
mutex_unlock(&ima_extend_list_mutex);
- integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
- entry->template.file_name,
+ integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
op, audit_cause, result, audit_info);
return result;
}