LSM: imbed ima calls in the security hooks

[firefly-linux-kernel-4.4.55.git] / security / security.c

diff --git a/security/security.c b/security/security.c
index 279757314a05204492201e6b8d9f008b9080c7b1..684d5ee655dabeaac7638897ac8554de6eea53e7 100644 (file)
--- a/security/security.c
+++ b/security/security.c
@@ -16,6 +16,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/security.h>
+#include <linux/ima.h>
 
 /* Boot-time LSM user choice */
 static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1];
@@ -235,7 +236,12 @@ int security_bprm_set_creds(struct linux_binprm *bprm)
 
 int security_bprm_check(struct linux_binprm *bprm)
 {
-       return security_ops->bprm_check_security(bprm);
+       int ret;
+
+       ret = security_ops->bprm_check_security(bprm);
+       if (ret)
+               return ret;
+       return ima_bprm_check(bprm);
 }
 
 void security_bprm_committing_creds(struct linux_binprm *bprm)
@@ -352,12 +358,21 @@ EXPORT_SYMBOL(security_sb_parse_opts_str);
 
 int security_inode_alloc(struct inode *inode)
 {
+       int ret;
+
        inode->i_security = NULL;
-       return security_ops->inode_alloc_security(inode);
+       ret =  security_ops->inode_alloc_security(inode);
+       if (ret)
+               return ret;
+       ret = ima_inode_alloc(inode);
+       if (ret)
+               security_inode_free(inode);
+       return ret;
 }
 
 void security_inode_free(struct inode *inode)
 {
+       ima_inode_free(inode);
        security_ops->inode_free_security(inode);
 }
 
@@ -648,6 +663,8 @@ int security_file_alloc(struct file *file)
 void security_file_free(struct file *file)
 {
        security_ops->file_free_security(file);
+       if (file->f_dentry)
+               ima_file_free(file);
 }
 
 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
@@ -659,7 +676,12 @@ int security_file_mmap(struct file *file, unsigned long reqprot,
                        unsigned long prot, unsigned long flags,
                        unsigned long addr, unsigned long addr_only)
 {
-       return security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
+       int ret;
+
+       ret = security_ops->file_mmap(file, reqprot, prot, flags, addr, addr_only);
+       if (ret)
+               return ret;
+       return ima_file_mmap(file, prot);
 }
 
 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,