linux-master/fs/exec.c

129 	struct filename *tmp = getname(library);
923 static struct file *do_open_execat(int fd, struct filename *name, int flags)
980 	struct filename *filename = getname_kernel(name);
981 	struct file *f = ERR_CAST(filename);
983 	if (!IS_ERR(filename)) {
984 		f = do_open_execat(AT_FDCWD, filename, 0);
985 		putname(filename);
1399 	__set_task_comm(me, kbasename(bprm->filename), true);
1548 	if (bprm->interp != bprm->filename)
1554 static struct linux_binprm *alloc_bprm(int fd, struct filename *filename, int flags)
1560 	file = do_open_execat(fd, filename, flags);
1572 	if (fd == AT_FDCWD || filename->name[0] == '/') {
1573 		bprm->filename = filename->name;
1575 		if (filename->name[0] == '\0')
1579 						  fd, filename->name);
1595 		bprm->filename = bprm->fdpath;
1597 	bprm->interp = bprm->filename;
1611 	if (bprm->interp != bprm->filename)
1922 static int do_execveat_common(int fd, struct filename *filename,
1930 	if (IS_ERR(filename))
1931 		return PTR_ERR(filename);
1949 	bprm = alloc_bprm(fd, filename, flags);
1958 			     current->comm, bprm->filename);
1972 	retval = copy_string_kernel(bprm->filename, bprm);
2003 	putname(filename);
2010 	struct filename *filename;
2019 	filename = getname_kernel(kernel_filename);
2020 	if (IS_ERR(filename))
2021 		return PTR_ERR(filename);
2023 	bprm = alloc_bprm(fd, filename, 0);
2045 	retval = copy_string_kernel(bprm->filename, bprm);
2062 	putname(filename);
2066 static int do_execve(struct filename *filename,
2072 	return do_execveat_common(AT_FDCWD, filename, argv, envp, 0);
2075 static int do_execveat(int fd, struct filename *filename,
2083 	return do_execveat_common(fd, filename, argv, envp, flags);
2087 static int compat_do_execve(struct filename *filename,
2099 	return do_execveat_common(AT_FDCWD, filename, argv, envp, 0);
2102 static int compat_do_execveat(int fd, struct filename *filename,
2115 	return do_execveat_common(fd, filename, argv, envp, flags);
2144 		const char __user *, filename,
2148 	return do_execve(getname(filename), argv, envp);
2152 		int, fd, const char __user *, filename,
2158 			   getname_uflags(filename, flags),
2163 COMPAT_SYSCALL_DEFINE3(execve, const char __user *, filename,
2167 	return compat_do_execve(getname(filename), argv, envp);
2171 		       const char __user *, filename,
2177 				  getname_uflags(filename, flags),