diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/binfmts.h | 21 | ||||
| -rw-r--r-- | include/linux/bpfilter.h | 7 | ||||
| -rw-r--r-- | include/linux/sched.h | 9 | ||||
| -rw-r--r-- | include/linux/sched/signal.h | 2 | ||||
| -rw-r--r-- | include/linux/umh.h | 15 | ||||
| -rw-r--r-- | include/linux/usermode_driver.h | 18 |
6 files changed, 32 insertions, 40 deletions
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h index 4a20b7517dd0..0571701ab1c5 100644 --- a/include/linux/binfmts.h +++ b/include/linux/binfmts.h @@ -45,17 +45,18 @@ struct linux_binprm { #ifdef __alpha__ unsigned int taso:1; #endif - struct file * executable; /* Executable to pass to the interpreter */ - struct file * interpreter; - struct file * file; + struct file *executable; /* Executable to pass to the interpreter */ + struct file *interpreter; + struct file *file; struct cred *cred; /* new credentials */ int unsafe; /* how unsafe this exec is (mask of LSM_UNSAFE_*) */ unsigned int per_clear; /* bits to clear in current->personality */ int argc, envc; - const char * filename; /* Name of binary as seen by procps */ - const char * interp; /* Name of the binary really executed. Most + const char *filename; /* Name of binary as seen by procps */ + const char *interp; /* Name of the binary really executed. Most of the time same as filename, but could be different for binfmt_{misc,script} */ + const char *fdpath; /* generated filename for execveat */ unsigned interp_flags; int execfd; /* File descriptor of the executable */ unsigned long loader, exec; @@ -134,13 +135,7 @@ int copy_string_kernel(const char *arg, struct linux_binprm *bprm); extern void set_binfmt(struct linux_binfmt *new); extern ssize_t read_code(struct file *, unsigned long, loff_t, size_t); -extern int do_execve(struct filename *, - const char __user * const __user *, - const char __user * const __user *); -extern int do_execveat(int, struct filename *, - const char __user * const __user *, - const char __user * const __user *, - int); -int do_execve_file(struct file *file, void *__argv, void *__envp); +int kernel_execve(const char *filename, + const char *const *argv, const char *const *envp); #endif /* _LINUX_BINFMTS_H */ diff --git a/include/linux/bpfilter.h b/include/linux/bpfilter.h index d815622cd31e..9b114c718a76 100644 --- a/include/linux/bpfilter.h +++ b/include/linux/bpfilter.h @@ -3,22 +3,23 @@ #define _LINUX_BPFILTER_H #include <uapi/linux/bpfilter.h> -#include <linux/umh.h> +#include <linux/usermode_driver.h> struct sock; int bpfilter_ip_set_sockopt(struct sock *sk, int optname, char __user *optval, unsigned int optlen); int bpfilter_ip_get_sockopt(struct sock *sk, int optname, char __user *optval, int __user *optlen); +void bpfilter_umh_cleanup(struct umd_info *info); + struct bpfilter_umh_ops { - struct umh_info info; + struct umd_info info; /* since ip_getsockopt() can run in parallel, serialize access to umh */ struct mutex lock; int (*sockopt)(struct sock *sk, int optname, char __user *optval, unsigned int optlen, bool is_set); int (*start)(void); - bool stop; }; extern struct bpfilter_umh_ops bpfilter_ops; #endif diff --git a/include/linux/sched.h b/include/linux/sched.h index 6d6683b48c2a..06ec60462af0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1507,7 +1507,6 @@ extern struct pid *cad_pid; #define PF_KTHREAD 0x00200000 /* I am a kernel thread */ #define PF_RANDOMIZE 0x00400000 /* Randomize virtual address space */ #define PF_SWAPWRITE 0x00800000 /* Allowed to write to swap */ -#define PF_UMH 0x02000000 /* I'm an Usermodehelper process */ #define PF_NO_SETAFFINITY 0x04000000 /* Userland is not allowed to meddle with cpus_mask */ #define PF_MCE_EARLY 0x08000000 /* Early kill for mce process policy */ #define PF_MEMALLOC_NOCMA 0x10000000 /* All allocation request will have _GFP_MOVABLE cleared */ @@ -2016,14 +2015,6 @@ static inline void rseq_execve(struct task_struct *t) #endif -void __exit_umh(struct task_struct *tsk); - -static inline void exit_umh(struct task_struct *tsk) -{ - if (unlikely(tsk->flags & PF_UMH)) - __exit_umh(tsk); -} - #ifdef CONFIG_DEBUG_RSEQ void rseq_syscall(struct pt_regs *regs); diff --git a/include/linux/sched/signal.h b/include/linux/sched/signal.h index 0ee5e696c5d8..1bad18a1d8ba 100644 --- a/include/linux/sched/signal.h +++ b/include/linux/sched/signal.h @@ -674,6 +674,8 @@ static inline int thread_group_empty(struct task_struct *p) #define delay_group_leader(p) \ (thread_group_leader(p) && !thread_group_empty(p)) +extern bool thread_group_exited(struct pid *pid); + extern struct sighand_struct *__lock_task_sighand(struct task_struct *task, unsigned long *flags); diff --git a/include/linux/umh.h b/include/linux/umh.h index 0c08de356d0d..244aff638220 100644 --- a/include/linux/umh.h +++ b/include/linux/umh.h @@ -22,10 +22,8 @@ struct subprocess_info { const char *path; char **argv; char **envp; - struct file *file; int wait; int retval; - pid_t pid; int (*init)(struct subprocess_info *info, struct cred *new); void (*cleanup)(struct subprocess_info *info); void *data; @@ -40,19 +38,6 @@ call_usermodehelper_setup(const char *path, char **argv, char **envp, int (*init)(struct subprocess_info *info, struct cred *new), void (*cleanup)(struct subprocess_info *), void *data); -struct subprocess_info *call_usermodehelper_setup_file(struct file *file, - int (*init)(struct subprocess_info *info, struct cred *new), - void (*cleanup)(struct subprocess_info *), void *data); -struct umh_info { - const char *cmdline; - struct file *pipe_to_umh; - struct file *pipe_from_umh; - struct list_head list; - void (*cleanup)(struct umh_info *info); - pid_t pid; -}; -int fork_usermode_blob(void *data, size_t len, struct umh_info *info); - extern int call_usermodehelper_exec(struct subprocess_info *info, int wait); diff --git a/include/linux/usermode_driver.h b/include/linux/usermode_driver.h new file mode 100644 index 000000000000..073a9e0ec07d --- /dev/null +++ b/include/linux/usermode_driver.h @@ -0,0 +1,18 @@ +#ifndef __LINUX_USERMODE_DRIVER_H__ +#define __LINUX_USERMODE_DRIVER_H__ + +#include <linux/umh.h> +#include <linux/path.h> + +struct umd_info { + const char *driver_name; + struct file *pipe_to_umh; + struct file *pipe_from_umh; + struct path wd; + struct pid *tgid; +}; +int umd_load_blob(struct umd_info *info, const void *data, size_t len); +int umd_unload_blob(struct umd_info *info); +int fork_usermode_driver(struct umd_info *info); + +#endif /* __LINUX_USERMODE_DRIVER_H__ */ |