15  * File: ima_main.c
20 #include <linux/file.h>
44  * 	- Opening a file for write when already open for read,
46  *	- Opening a file for read when already open for write,
47  * 	  could result in a file measurement error.
50 static void ima_rdwr_violation_check(struct file *file)  in ima_rdwr_violation_check()  argument
52 	struct dentry *dentry = file->f_path.dentry;  in ima_rdwr_violation_check()
54 	fmode_t mode = file->f_mode;  in ima_rdwr_violation_check()
61 	mutex_lock(&inode->i_mutex);	/* file metadata: permissions, xattr */  in ima_rdwr_violation_check()
88 				  struct file *file)  in ima_check_last_writer()  argument
90 	fmode_t mode = file->f_mode;  in ima_check_last_writer()
102  * @file: pointer to file structure being freed
106 void ima_file_free(struct file *file)  in ima_file_free()  argument
108 	struct inode *inode = file->f_dentry->d_inode;  in ima_file_free()
118 	ima_check_last_writer(iint, inode, file);  in ima_file_free()
121 static int process_measurement(struct file *file, const unsigned char *filename,  in process_measurement()  argument
124 	struct inode *inode = file->f_dentry->d_inode;  in process_measurement()
149 	rc = ima_collect_measurement(iint, file);  in process_measurement()
151 		ima_store_measurement(iint, file, filename);  in process_measurement()
159  * @file: pointer to the file to be measured (May be NULL)
168 int ima_file_mmap(struct file *file, unsigned long prot)  in ima_file_mmap()  argument
172 	if (!file)  in ima_file_mmap()
175 		rc = process_measurement(file, file->f_dentry->d_name.name,  in ima_file_mmap()
184  * The OS protects against an executable file, already open for write,
185  * from being executed in deny_write_access() and an executable file,
197 	rc = process_measurement(bprm->file, bprm->filename,  in ima_bprm_check()
204  * @file: pointer to the file to be measured
212 int ima_file_check(struct file *file, int mask)  in ima_file_check()  argument
216 	ima_rdwr_violation_check(file);  in ima_file_check()
217 	rc = process_measurement(file, file->f_dentry->d_name.name,  in ima_file_check()