diff options
Diffstat (limited to 'security/integrity/ima/ima_main.c')
| -rw-r--r-- | security/integrity/ima/ima_main.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c index 09baa335ebc..2917f980bf3 100644 --- a/security/integrity/ima/ima_main.c +++ b/security/integrity/ima/ima_main.c @@ -88,8 +88,6 @@ static void ima_rdwr_violation_check(struct file *file) if (!S_ISREG(inode->i_mode) || !ima_initialized) return; - mutex_lock(&inode->i_mutex); /* file metadata: permissions, xattr */ - if (mode & FMODE_WRITE) { if (atomic_read(&inode->i_readcount) && IS_IMA(inode)) { struct integrity_iint_cache *iint; @@ -104,8 +102,6 @@ static void ima_rdwr_violation_check(struct file *file) send_writers = true; } - mutex_unlock(&inode->i_mutex); - if (!send_tomtou && !send_writers) return; @@ -163,7 +159,7 @@ static int process_measurement(struct file *file, const char *filename, { struct inode *inode = file_inode(file); struct integrity_iint_cache *iint; - struct ima_template_desc *template_desc = ima_template_desc_current(); + struct ima_template_desc *template_desc; char *pathbuf = NULL; const char *pathname = NULL; int rc = -ENOMEM, action, must_appraise, _func; @@ -207,6 +203,7 @@ static int process_measurement(struct file *file, const char *filename, goto out_digsig; } + template_desc = ima_template_desc_current(); if (strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0) { if (action & IMA_APPRAISE_SUBMASK) xattr_ptr = &xattr_value; @@ -322,14 +319,31 @@ int ima_module_check(struct file *file) return process_measurement(file, NULL, MAY_EXEC, MODULE_CHECK); } +int ima_fw_from_file(struct file *file, char *buf, size_t size) +{ + if (!file) { + if ((ima_appraise & IMA_APPRAISE_FIRMWARE) && + (ima_appraise & IMA_APPRAISE_ENFORCE)) + return -EACCES; /* INTEGRITY_UNKNOWN */ + return 0; + } + return process_measurement(file, NULL, MAY_EXEC, FIRMWARE_CHECK); +} + static int __init init_ima(void) { int error; hash_setup(CONFIG_IMA_DEFAULT_HASH); error = ima_init(); - if (!error) - ima_initialized = 1; + if (error) + goto out; + + error = ima_init_keyring(INTEGRITY_KEYRING_IMA); + if (error) + goto out; + ima_initialized = 1; +out: return error; } |