diff options
| -rw-r--r-- | include/linux/security.h | 17 | ||||
| -rw-r--r-- | security/capability.c | 6 | ||||
| -rw-r--r-- | security/security.c | 6 |
3 files changed, 29 insertions, 0 deletions
diff --git a/include/linux/security.h b/include/linux/security.h index 59820f8782a1..0ae4b147718a 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -702,6 +702,15 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts) * @inode points to the inode to use as a reference. * The current task must be the one that nominated @inode. * Return 0 if successful. + * @kernel_fw_from_file: + * Load firmware from userspace (not called for built-in firmware). + * @file contains the file structure pointing to the file containing + * the firmware to load. This argument will be NULL if the firmware + * was loaded via the uevent-triggered blob-based interface exposed + * by CONFIG_FW_LOADER_USER_HELPER. + * @buf pointer to buffer containing firmware contents. + * @size length of the firmware contents. + * Return 0 if permission is granted. * @kernel_module_request: * Ability to trigger the kernel to automatically upcall to userspace for * userspace to load a kernel module with the given name. @@ -1568,6 +1577,7 @@ struct security_operations { void (*cred_transfer)(struct cred *new, const struct cred *old); int (*kernel_act_as)(struct cred *new, u32 secid); int (*kernel_create_files_as)(struct cred *new, struct inode *inode); + int (*kernel_fw_from_file)(struct file *file, char *buf, size_t size); int (*kernel_module_request)(char *kmod_name); int (*kernel_module_from_file)(struct file *file); int (*task_fix_setuid) (struct cred *new, const struct cred *old, @@ -1840,6 +1850,7 @@ int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp); void security_transfer_creds(struct cred *new, const struct cred *old); int security_kernel_act_as(struct cred *new, u32 secid); int security_kernel_create_files_as(struct cred *new, struct inode *inode); +int security_kernel_fw_from_file(struct file *file, char *buf, size_t size); int security_kernel_module_request(char *kmod_name); int security_kernel_module_from_file(struct file *file); int security_task_fix_setuid(struct cred *new, const struct cred *old, @@ -2366,6 +2377,12 @@ static inline int security_kernel_create_files_as(struct cred *cred, return 0; } +static inline int security_kernel_fw_from_file(struct file *file, + char *buf, size_t size) +{ + return 0; +} + static inline int security_kernel_module_request(char *kmod_name) { return 0; diff --git a/security/capability.c b/security/capability.c index e76373de3129..a74fde6a7468 100644 --- a/security/capability.c +++ b/security/capability.c @@ -401,6 +401,11 @@ static int cap_kernel_create_files_as(struct cred *new, struct inode *inode) return 0; } +static int cap_kernel_fw_from_file(struct file *file, char *buf, size_t size) +{ + return 0; +} + static int cap_kernel_module_request(char *kmod_name) { return 0; @@ -1015,6 +1020,7 @@ void __init security_fixup_ops(struct security_operations *ops) set_to_cap_if_null(ops, cred_transfer); set_to_cap_if_null(ops, kernel_act_as); set_to_cap_if_null(ops, kernel_create_files_as); + set_to_cap_if_null(ops, kernel_fw_from_file); set_to_cap_if_null(ops, kernel_module_request); set_to_cap_if_null(ops, kernel_module_from_file); set_to_cap_if_null(ops, task_fix_setuid); diff --git a/security/security.c b/security/security.c index 31614e9e96e5..35d37d0f0d49 100644 --- a/security/security.c +++ b/security/security.c @@ -845,6 +845,12 @@ int security_kernel_create_files_as(struct cred *new, struct inode *inode) return security_ops->kernel_create_files_as(new, inode); } +int security_kernel_fw_from_file(struct file *file, char *buf, size_t size) +{ + return security_ops->kernel_fw_from_file(file, buf, size); +} +EXPORT_SYMBOL_GPL(security_kernel_fw_from_file); + int security_kernel_module_request(char *kmod_name) { return security_ops->kernel_module_request(kmod_name); |
