diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/ipc.h | 2 | ||||
| -rw-r--r-- | include/linux/lsm_hooks.h | 32 | ||||
| -rw-r--r-- | include/linux/msg.h | 18 | ||||
| -rw-r--r-- | include/linux/security.h | 67 | ||||
| -rw-r--r-- | include/linux/sem.h | 40 | ||||
| -rw-r--r-- | include/linux/shm.h | 22 |
6 files changed, 50 insertions, 131 deletions
diff --git a/include/linux/ipc.h b/include/linux/ipc.h index 821b2f260992..6cc2df7f7ac9 100644 --- a/include/linux/ipc.h +++ b/include/linux/ipc.h @@ -8,8 +8,6 @@ #include <uapi/linux/ipc.h> #include <linux/refcount.h> -#define IPCMNI 32768 /* <= MAX_INT limit for ipc arrays (including sysctl changes) */ - /* used by in-kernel data structures */ struct kern_ipc_perm { spinlock_t lock; diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h index 7161d8e7ee79..bde167fa2c51 100644 --- a/include/linux/lsm_hooks.h +++ b/include/linux/lsm_hooks.h @@ -1575,28 +1575,28 @@ union security_list_options { int (*msg_msg_alloc_security)(struct msg_msg *msg); void (*msg_msg_free_security)(struct msg_msg *msg); - int (*msg_queue_alloc_security)(struct msg_queue *msq); - void (*msg_queue_free_security)(struct msg_queue *msq); - int (*msg_queue_associate)(struct msg_queue *msq, int msqflg); - int (*msg_queue_msgctl)(struct msg_queue *msq, int cmd); - int (*msg_queue_msgsnd)(struct msg_queue *msq, struct msg_msg *msg, + int (*msg_queue_alloc_security)(struct kern_ipc_perm *msq); + void (*msg_queue_free_security)(struct kern_ipc_perm *msq); + int (*msg_queue_associate)(struct kern_ipc_perm *msq, int msqflg); + int (*msg_queue_msgctl)(struct kern_ipc_perm *msq, int cmd); + int (*msg_queue_msgsnd)(struct kern_ipc_perm *msq, struct msg_msg *msg, int msqflg); - int (*msg_queue_msgrcv)(struct msg_queue *msq, struct msg_msg *msg, + int (*msg_queue_msgrcv)(struct kern_ipc_perm *msq, struct msg_msg *msg, struct task_struct *target, long type, int mode); - int (*shm_alloc_security)(struct shmid_kernel *shp); - void (*shm_free_security)(struct shmid_kernel *shp); - int (*shm_associate)(struct shmid_kernel *shp, int shmflg); - int (*shm_shmctl)(struct shmid_kernel *shp, int cmd); - int (*shm_shmat)(struct shmid_kernel *shp, char __user *shmaddr, + int (*shm_alloc_security)(struct kern_ipc_perm *shp); + void (*shm_free_security)(struct kern_ipc_perm *shp); + int (*shm_associate)(struct kern_ipc_perm *shp, int shmflg); + int (*shm_shmctl)(struct kern_ipc_perm *shp, int cmd); + int (*shm_shmat)(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); - int (*sem_alloc_security)(struct sem_array *sma); - void (*sem_free_security)(struct sem_array *sma); - int (*sem_associate)(struct sem_array *sma, int semflg); - int (*sem_semctl)(struct sem_array *sma, int cmd); - int (*sem_semop)(struct sem_array *sma, struct sembuf *sops, + int (*sem_alloc_security)(struct kern_ipc_perm *sma); + void (*sem_free_security)(struct kern_ipc_perm *sma); + int (*sem_associate)(struct kern_ipc_perm *sma, int semflg); + int (*sem_semctl)(struct kern_ipc_perm *sma, int cmd); + int (*sem_semop)(struct kern_ipc_perm *sma, struct sembuf *sops, unsigned nsops, int alter); int (*netlink_send)(struct sock *sk, struct sk_buff *skb); diff --git a/include/linux/msg.h b/include/linux/msg.h index 0a7eefeee0d1..9a972a296b95 100644 --- a/include/linux/msg.h +++ b/include/linux/msg.h @@ -3,7 +3,6 @@ #define _LINUX_MSG_H #include <linux/list.h> -#include <linux/time64.h> #include <uapi/linux/msg.h> /* one msg_msg structure for each message */ @@ -16,21 +15,4 @@ struct msg_msg { /* the actual message follows immediately */ }; -/* one msq_queue structure for each present queue on the system */ -struct msg_queue { - struct kern_ipc_perm q_perm; - time64_t q_stime; /* last msgsnd time */ - time64_t q_rtime; /* last msgrcv time */ - time64_t q_ctime; /* last change time */ - unsigned long q_cbytes; /* current number of bytes on queue */ - unsigned long q_qnum; /* number of messages in queue */ - unsigned long q_qbytes; /* max number of bytes on queue */ - pid_t q_lspid; /* pid of last msgsnd */ - pid_t q_lrpid; /* last receive pid */ - - struct list_head q_messages; - struct list_head q_receivers; - struct list_head q_senders; -} __randomize_layout; - #endif /* _LINUX_MSG_H */ diff --git a/include/linux/security.h b/include/linux/security.h index 73f1ef625d40..128e1e4a5346 100644 --- a/include/linux/security.h +++ b/include/linux/security.h @@ -36,7 +36,6 @@ struct linux_binprm; struct cred; struct rlimit; struct siginfo; -struct sem_array; struct sembuf; struct kern_ipc_perm; struct audit_context; @@ -50,9 +49,7 @@ struct qstr; struct iattr; struct fown_struct; struct file_operations; -struct shmid_kernel; struct msg_msg; -struct msg_queue; struct xattr; struct xfrm_sec_ctx; struct mm_struct; @@ -355,24 +352,24 @@ int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag); void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid); int security_msg_msg_alloc(struct msg_msg *msg); void security_msg_msg_free(struct msg_msg *msg); -int security_msg_queue_alloc(struct msg_queue *msq); -void security_msg_queue_free(struct msg_queue *msq); -int security_msg_queue_associate(struct msg_queue *msq, int msqflg); -int security_msg_queue_msgctl(struct msg_queue *msq, int cmd); -int security_msg_queue_msgsnd(struct msg_queue *msq, +int security_msg_queue_alloc(struct kern_ipc_perm *msq); +void security_msg_queue_free(struct kern_ipc_perm *msq); +int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg); +int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd); +int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, struct msg_msg *msg, int msqflg); -int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, +int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, struct task_struct *target, long type, int mode); -int security_shm_alloc(struct shmid_kernel *shp); -void security_shm_free(struct shmid_kernel *shp); -int security_shm_associate(struct shmid_kernel *shp, int shmflg); -int security_shm_shmctl(struct shmid_kernel *shp, int cmd); -int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg); -int security_sem_alloc(struct sem_array *sma); -void security_sem_free(struct sem_array *sma); -int security_sem_associate(struct sem_array *sma, int semflg); -int security_sem_semctl(struct sem_array *sma, int cmd); -int security_sem_semop(struct sem_array *sma, struct sembuf *sops, +int security_shm_alloc(struct kern_ipc_perm *shp); +void security_shm_free(struct kern_ipc_perm *shp); +int security_shm_associate(struct kern_ipc_perm *shp, int shmflg); +int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd); +int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg); +int security_sem_alloc(struct kern_ipc_perm *sma); +void security_sem_free(struct kern_ipc_perm *sma); +int security_sem_associate(struct kern_ipc_perm *sma, int semflg); +int security_sem_semctl(struct kern_ipc_perm *sma, int cmd); +int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, unsigned nsops, int alter); void security_d_instantiate(struct dentry *dentry, struct inode *inode); int security_getprocattr(struct task_struct *p, char *name, char **value); @@ -1045,32 +1042,32 @@ static inline int security_msg_msg_alloc(struct msg_msg *msg) static inline void security_msg_msg_free(struct msg_msg *msg) { } -static inline int security_msg_queue_alloc(struct msg_queue *msq) +static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq) { return 0; } -static inline void security_msg_queue_free(struct msg_queue *msq) +static inline void security_msg_queue_free(struct kern_ipc_perm *msq) { } -static inline int security_msg_queue_associate(struct msg_queue *msq, +static inline int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg) { return 0; } -static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) +static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) { return 0; } -static inline int security_msg_queue_msgsnd(struct msg_queue *msq, +static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, struct msg_msg *msg, int msqflg) { return 0; } -static inline int security_msg_queue_msgrcv(struct msg_queue *msq, +static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, struct task_struct *target, long type, int mode) @@ -1078,50 +1075,50 @@ static inline int security_msg_queue_msgrcv(struct msg_queue *msq, return 0; } -static inline int security_shm_alloc(struct shmid_kernel *shp) +static inline int security_shm_alloc(struct kern_ipc_perm *shp) { return 0; } -static inline void security_shm_free(struct shmid_kernel *shp) +static inline void security_shm_free(struct kern_ipc_perm *shp) { } -static inline int security_shm_associate(struct shmid_kernel *shp, +static inline int security_shm_associate(struct kern_ipc_perm *shp, int shmflg) { return 0; } -static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd) +static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) { return 0; } -static inline int security_shm_shmat(struct shmid_kernel *shp, +static inline int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg) { return 0; } -static inline int security_sem_alloc(struct sem_array *sma) +static inline int security_sem_alloc(struct kern_ipc_perm *sma) { return 0; } -static inline void security_sem_free(struct sem_array *sma) +static inline void security_sem_free(struct kern_ipc_perm *sma) { } -static inline int security_sem_associate(struct sem_array *sma, int semflg) +static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg) { return 0; } -static inline int security_sem_semctl(struct sem_array *sma, int cmd) +static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) { return 0; } -static inline int security_sem_semop(struct sem_array *sma, +static inline int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, unsigned nsops, int alter) { diff --git a/include/linux/sem.h b/include/linux/sem.h index 9badd322dcee..5608a500c43e 100644 --- a/include/linux/sem.h +++ b/include/linux/sem.h @@ -2,48 +2,10 @@ #ifndef _LINUX_SEM_H #define _LINUX_SEM_H -#include <linux/atomic.h> -#include <linux/rcupdate.h> -#include <linux/cache.h> -#include <linux/time64.h> #include <uapi/linux/sem.h> struct task_struct; - -/* One semaphore structure for each semaphore in the system. */ -struct sem { - int semval; /* current value */ - /* - * PID of the process that last modified the semaphore. For - * Linux, specifically these are: - * - semop - * - semctl, via SETVAL and SETALL. - * - at task exit when performing undo adjustments (see exit_sem). - */ - int sempid; - spinlock_t lock; /* spinlock for fine-grained semtimedop */ - struct list_head pending_alter; /* pending single-sop operations */ - /* that alter the semaphore */ - struct list_head pending_const; /* pending single-sop operations */ - /* that do not alter the semaphore*/ - time_t sem_otime; /* candidate for sem_otime */ -} ____cacheline_aligned_in_smp; - -/* One sem_array data structure for each set of semaphores in the system. */ -struct sem_array { - struct kern_ipc_perm sem_perm; /* permissions .. see ipc.h */ - time64_t sem_ctime; /* create/last semctl() time */ - struct list_head pending_alter; /* pending operations */ - /* that alter the array */ - struct list_head pending_const; /* pending complex operations */ - /* that do not alter semvals */ - struct list_head list_id; /* undo requests on this array */ - int sem_nsems; /* no. of semaphores in array */ - int complex_count; /* pending complex operations */ - unsigned int use_global_lock;/* >0: global lock required */ - - struct sem sems[]; -} __randomize_layout; +struct sem_undo_list; #ifdef CONFIG_SYSVIPC diff --git a/include/linux/shm.h b/include/linux/shm.h index 2bbafacfbfc9..d8e69aed3d32 100644 --- a/include/linux/shm.h +++ b/include/linux/shm.h @@ -7,27 +7,7 @@ #include <uapi/linux/shm.h> #include <asm/shmparam.h> -struct shmid_kernel /* private to the kernel */ -{ - struct kern_ipc_perm shm_perm; - struct file *shm_file; - unsigned long shm_nattch; - unsigned long shm_segsz; - time64_t shm_atim; - time64_t shm_dtim; - time64_t shm_ctim; - pid_t shm_cprid; - pid_t shm_lprid; - struct user_struct *mlock_user; - - /* The task created the shm object. NULL if the task is dead. */ - struct task_struct *shm_creator; - struct list_head shm_clist; /* list by creator */ -} __randomize_layout; - -/* shm_mode upper byte flags */ -#define SHM_DEST 01000 /* segment will be destroyed on last detach */ -#define SHM_LOCKED 02000 /* segment will not be swapped */ +struct file; #ifdef CONFIG_SYSVIPC struct sysv_shm { |