diff options
Diffstat (limited to 'security/integrity/ima/ima_api.c')
| -rw-r--r-- | security/integrity/ima/ima_api.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c index c38bbce8c6a..d9cd5ce14d2 100644 --- a/security/integrity/ima/ima_api.c +++ b/security/integrity/ima/ima_api.c @@ -92,8 +92,8 @@ int ima_store_template(struct ima_template_entry *entry, int violation, struct inode *inode, const unsigned char *filename) { - const char *op = "add_template_measure"; - const char *audit_cause = "hashing_error"; + static const char op[] = "add_template_measure"; + static const char audit_cause[] = "hashing_error"; char *template_name = entry->template_desc->name; int result; struct { @@ -132,7 +132,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename, const char *op, const char *cause) { struct ima_template_entry *entry; - struct inode *inode = file->f_dentry->d_inode; + struct inode *inode = file_inode(file); int violation = 1; int result; @@ -160,10 +160,10 @@ err_out: * @function: calling function (FILE_CHECK, BPRM_CHECK, MMAP_CHECK, MODULE_CHECK) * * The policy is defined in terms of keypairs: - * subj=, obj=, type=, func=, mask=, fsmagic= + * subj=, obj=, type=, func=, mask=, fsmagic= * subj,obj, and type: are LSM specific. - * func: FILE_CHECK | BPRM_CHECK | MMAP_CHECK | MODULE_CHECK - * mask: contains the permission mask + * func: FILE_CHECK | BPRM_CHECK | MMAP_CHECK | MODULE_CHECK + * mask: contains the permission mask * fsmagic: hex value * * Returns IMA_MEASURE, IMA_APPRAISE mask. @@ -199,6 +199,7 @@ int ima_collect_measurement(struct integrity_iint_cache *iint, struct evm_ima_xattr_data **xattr_value, int *xattr_len) { + const char *audit_cause = "failed"; struct inode *inode = file_inode(file); const char *filename = file->f_dentry->d_name.name; int result = 0; @@ -213,6 +214,12 @@ int ima_collect_measurement(struct integrity_iint_cache *iint, if (!(iint->flags & IMA_COLLECTED)) { u64 i_version = file_inode(file)->i_version; + if (file->f_flags & O_DIRECT) { + audit_cause = "failed(directio)"; + result = -EACCES; + goto out; + } + /* use default hash algorithm */ hash.hdr.algo = ima_hash_algo; @@ -233,9 +240,10 @@ int ima_collect_measurement(struct integrity_iint_cache *iint, result = -ENOMEM; } } +out: if (result) integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode, - filename, "collect_data", "failed", + filename, "collect_data", audit_cause, result, 0); return result; } @@ -248,7 +256,7 @@ int ima_collect_measurement(struct integrity_iint_cache *iint, * * We only get here if the inode has not already been measured, * but the measurement could already exist: - * - multiple copies of the same file on either the same or + * - multiple copies of the same file on either the same or * different filesystems. * - the inode was previously flushed as well as the iint info, * containing the hashing info. @@ -260,8 +268,8 @@ void ima_store_measurement(struct integrity_iint_cache *iint, struct evm_ima_xattr_data *xattr_value, int xattr_len) { - const char *op = "add_template_measure"; - const char *audit_cause = "ENOMEM"; + static const char op[] = "add_template_measure"; + static const char audit_cause[] = "ENOMEM"; int result = -ENOMEM; struct inode *inode = file_inode(file); struct ima_template_entry *entry; @@ -332,5 +340,5 @@ const char *ima_d_path(struct path *path, char **pathbuf) pathname = NULL; } } - return pathname; + return pathname ?: (const char *)path->dentry->d_name.name; } |