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Thu, 14 Jan 2016 17:44:13 +0000 Received: from casper.infradead.org ([2001:770:15f::2]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aJlwQ-0005EO-4y for linux-arm-kernel@bombadil.infradead.org; Thu, 14 Jan 2016 17:44:10 +0000 Received: from mail-by2on0100.outbound.protection.outlook.com ([207.46.100.100] helo=na01-by2-obe.outbound.protection.outlook.com) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1aJlhf-0007R0-SM for linux-arm-kernel@lists.infradead.org; Thu, 14 Jan 2016 17:29:01 +0000 Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Yuri.Norov@caviumnetworks.com; Received: from localhost (95.143.213.121) by BLUPR07MB609.namprd07.prod.outlook.com (10.141.207.12) with Microsoft SMTP Server (TLS) id 15.1.365.19; Thu, 14 Jan 2016 17:28:25 +0000 From: Yury Norov To: , , , Subject: [PATCH v6 20/21] all: s390: make compat wrappers the generic solution Date: Thu, 14 Jan 2016 20:23:17 +0300 Message-ID: <1452792198-10718-21-git-send-email-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.5.0 In-Reply-To: <1452792198-10718-1-git-send-email-ynorov@caviumnetworks.com> References: <1452792198-10718-1-git-send-email-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [95.143.213.121] X-ClientProxiedBy: DB5PR02CA0010.eurprd02.prod.outlook.com (25.161.237.20) To BLUPR07MB609.namprd07.prod.outlook.com (10.141.207.12) X-Microsoft-Exchange-Diagnostics: 1; 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BLUPR07MB609; 5:qgp2WcRHAgu1GIEWHxboNXo0sKGURwz6Oz3bAeMThOYOclvSp5cftKa1Rfwd71O3sgzWqKMX1FAvH0GztoUFlk/y2ux3KYg7+zLrRkVFP/3RUleehM+YKbDqQJBnZMNJAinhTmnbkOrwM36NbWpP+A==; 24:s4OTwo3VmJcwc1b7XuPlgp5Byyh6sIJ2tW+sNH5YCoiLRqDDBg2i74Qa5tYW1na37/B6GdeiHvh0uIvTh8aJ2JeHFSyBBvRgO1+x3D4p6Fk= SpamDiagnosticOutput: 1:23 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: caviumnetworks.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 14 Jan 2016 17:28:25.9770 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: BLUPR07MB609 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160114_172856_957106_FDBE4057 X-CRM114-Status: GOOD ( 23.44 ) X-Spam-Score: -1.9 (-) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pinskia@gmail.com, Prasun.Kapoor@caviumnetworks.com, schwab@suse.de, broonie@kernel.org, heiko.carstens@de.ibm.com, agraf@suse.de, klimov.linux@gmail.com, ynorov@caviumnetworks.com, jan.dakinevich@gmail.com, schwidefsky@de.ibm.com, Nathan_Lynch@mentor.com, joseph@codesourcery.com, christoph.muellner@theobroma-systems.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAD_ENC_HEADER,BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The problem that makes us to use wrappers is that some compat architectures allows user code to access top halves of registers. This is not a problem for syscalls that are already handled by compat code, or for that who has types of the same size in kernel and userspace. In case of lp64/ilp32 the problem is in pointer types, long, unsigned long. S390 folks already have the solution for it. In this patch, it is turned to be general, as arm64/ilp32 needs it too. Build-tested on s390. Signed-off-by: Yury Norov --- arch/Kconfig | 4 + arch/s390/Kconfig | 1 + arch/s390/include/asm/compat_wrapper.h | 25 +++ arch/s390/kernel/Makefile | 2 +- arch/s390/kernel/compat_linux.c | 6 + arch/s390/kernel/compat_wrapper.c | 179 ---------------------- include/linux/compat_wrapper.h | 270 +++++++++++++++++++++++++++++++++ include/uapi/asm-generic/unistd.h | 224 +++++++++++++-------------- kernel/Makefile | 1 + kernel/compat_wrapper.c | 167 ++++++++++++++++++++ 10 files changed, 589 insertions(+), 290 deletions(-) create mode 100644 arch/s390/include/asm/compat_wrapper.h delete mode 100644 arch/s390/kernel/compat_wrapper.c create mode 100644 include/linux/compat_wrapper.h create mode 100644 kernel/compat_wrapper.c diff --git a/arch/Kconfig b/arch/Kconfig index 4e949e5..ab7692e 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -518,6 +518,10 @@ config HAVE_COPY_THREAD_TLS normal C parameter passing, rather than extracting the syscall argument from pt_regs. +config COMPAT_WRAPPER + bool + depends on COMPAT + # # ABI hall of shame # diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 3a55f49..88f48b0 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -336,6 +336,7 @@ config COMPAT select COMPAT_BINFMT_ELF if BINFMT_ELF select ARCH_WANT_OLD_COMPAT_IPC select COMPAT_OLD_SIGACTION + select COMPAT_WRAPPER depends on MULTIUSER help Select this option if you want to enable your system kernel to diff --git a/arch/s390/include/asm/compat_wrapper.h b/arch/s390/include/asm/compat_wrapper.h new file mode 100644 index 0000000..d5a5c36 --- /dev/null +++ b/arch/s390/include/asm/compat_wrapper.h @@ -0,0 +1,25 @@ +#ifndef __ASM_COMPAT_WRAPPER +#define __ASM_COMPAT_WRAPPER + +/* + * Compat system call wrappers. + * + * Copyright IBM Corp. 2014 + */ + +#define __SC_COMPAT_CAST(t, a) \ +({ \ + long __ReS = a; \ + \ + BUILD_BUG_ON((sizeof(t) > 4) && !__TYPE_IS_L(t) && \ + !__TYPE_IS_UL(t) && !__TYPE_IS_PTR(t)); \ + if (__TYPE_IS_L(t)) \ + __ReS = (s32)a; \ + if (__TYPE_IS_UL(t)) \ + __ReS = (u32)a; \ + if (__TYPE_IS_PTR(t)) \ + __ReS = a & 0x7fffffff; \ + (t)__ReS; \ +}) + +#endif /* __ASM_COMPAT_WRAPPER */ diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index dc167a2..185cd88 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -55,7 +55,7 @@ obj-$(CONFIG_HIBERNATION) += suspend.o swsusp.o obj-$(CONFIG_AUDIT) += audit.o compat-obj-$(CONFIG_AUDIT) += compat_audit.o obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o -obj-$(CONFIG_COMPAT) += compat_wrapper.o $(compat-obj-y) +obj-$(CONFIG_COMPAT) += $(compat-obj-y) obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_KPROBES) += kprobes.o diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c index 437e611..22416a8 100644 --- a/arch/s390/kernel/compat_linux.c +++ b/arch/s390/kernel/compat_linux.c @@ -44,6 +44,7 @@ #include #include #include +#include #include #include #include @@ -86,6 +87,11 @@ #define SET_STAT_UID(stat, uid) (stat).st_uid = high2lowuid(uid) #define SET_STAT_GID(stat, gid) (stat).st_gid = high2lowgid(gid) +COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, + mmio_addr, const void __user *, user_buffer, const size_t, length); +COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, + mmio_addr, void __user *, user_buffer, const size_t, length); + COMPAT_SYSCALL_DEFINE3(s390_chown16, const char __user *, filename, u16, user, u16, group) { diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c deleted file mode 100644 index fac4eed..0000000 --- a/arch/s390/kernel/compat_wrapper.c +++ /dev/null @@ -1,179 +0,0 @@ -/* - * Compat system call wrappers. - * - * Copyright IBM Corp. 2014 - */ - -#include -#include -#include "entry.h" - -#define COMPAT_SYSCALL_WRAP1(name, ...) \ - COMPAT_SYSCALL_WRAPx(1, _##name, __VA_ARGS__) -#define COMPAT_SYSCALL_WRAP2(name, ...) \ - COMPAT_SYSCALL_WRAPx(2, _##name, __VA_ARGS__) -#define COMPAT_SYSCALL_WRAP3(name, ...) \ - COMPAT_SYSCALL_WRAPx(3, _##name, __VA_ARGS__) -#define COMPAT_SYSCALL_WRAP4(name, ...) \ - COMPAT_SYSCALL_WRAPx(4, _##name, __VA_ARGS__) -#define COMPAT_SYSCALL_WRAP5(name, ...) \ - COMPAT_SYSCALL_WRAPx(5, _##name, __VA_ARGS__) -#define COMPAT_SYSCALL_WRAP6(name, ...) \ - COMPAT_SYSCALL_WRAPx(6, _##name, __VA_ARGS__) - -#define __SC_COMPAT_TYPE(t, a) \ - __typeof(__builtin_choose_expr(sizeof(t) > 4, 0L, (t)0)) a - -#define __SC_COMPAT_CAST(t, a) \ -({ \ - long __ReS = a; \ - \ - BUILD_BUG_ON((sizeof(t) > 4) && !__TYPE_IS_L(t) && \ - !__TYPE_IS_UL(t) && !__TYPE_IS_PTR(t)); \ - if (__TYPE_IS_L(t)) \ - __ReS = (s32)a; \ - if (__TYPE_IS_UL(t)) \ - __ReS = (u32)a; \ - if (__TYPE_IS_PTR(t)) \ - __ReS = a & 0x7fffffff; \ - (t)__ReS; \ -}) - -/* - * The COMPAT_SYSCALL_WRAP macro generates system call wrappers to be used by - * compat tasks. These wrappers will only be used for system calls where only - * the system call arguments need sign or zero extension or zeroing of the upper - * 33 bits of pointers. - * Note: since the wrapper function will afterwards call a system call which - * again performs zero and sign extension for all system call arguments with - * a size of less than eight bytes, these compat wrappers only touch those - * system call arguments with a size of eight bytes ((unsigned) long and - * pointers). Zero and sign extension for e.g. int parameters will be done by - * the regular system call wrappers. - */ -#define COMPAT_SYSCALL_WRAPx(x, name, ...) \ -asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ -asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__));\ -asmlinkage long notrace compat_sys##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__)) \ -{ \ - return sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__)); \ -} - -COMPAT_SYSCALL_WRAP2(creat, const char __user *, pathname, umode_t, mode); -COMPAT_SYSCALL_WRAP2(link, const char __user *, oldname, const char __user *, newname); -COMPAT_SYSCALL_WRAP1(unlink, const char __user *, pathname); -COMPAT_SYSCALL_WRAP1(chdir, const char __user *, filename); -COMPAT_SYSCALL_WRAP3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev); -COMPAT_SYSCALL_WRAP2(chmod, const char __user *, filename, umode_t, mode); -COMPAT_SYSCALL_WRAP1(oldumount, char __user *, name); -COMPAT_SYSCALL_WRAP2(access, const char __user *, filename, int, mode); -COMPAT_SYSCALL_WRAP2(rename, const char __user *, oldname, const char __user *, newname); -COMPAT_SYSCALL_WRAP2(mkdir, const char __user *, pathname, umode_t, mode); -COMPAT_SYSCALL_WRAP1(rmdir, const char __user *, pathname); -COMPAT_SYSCALL_WRAP1(pipe, int __user *, fildes); -COMPAT_SYSCALL_WRAP1(brk, unsigned long, brk); -COMPAT_SYSCALL_WRAP2(signal, int, sig, __sighandler_t, handler); -COMPAT_SYSCALL_WRAP1(acct, const char __user *, name); -COMPAT_SYSCALL_WRAP2(umount, char __user *, name, int, flags); -COMPAT_SYSCALL_WRAP1(chroot, const char __user *, filename); -COMPAT_SYSCALL_WRAP3(sigsuspend, int, unused1, int, unused2, old_sigset_t, mask); -COMPAT_SYSCALL_WRAP2(sethostname, char __user *, name, int, len); -COMPAT_SYSCALL_WRAP2(symlink, const char __user *, old, const char __user *, new); -COMPAT_SYSCALL_WRAP3(readlink, const char __user *, path, char __user *, buf, int, bufsiz); -COMPAT_SYSCALL_WRAP1(uselib, const char __user *, library); -COMPAT_SYSCALL_WRAP2(swapon, const char __user *, specialfile, int, swap_flags); -COMPAT_SYSCALL_WRAP4(reboot, int, magic1, int, magic2, unsigned int, cmd, void __user *, arg); -COMPAT_SYSCALL_WRAP2(munmap, unsigned long, addr, size_t, len); -COMPAT_SYSCALL_WRAP3(syslog, int, type, char __user *, buf, int, len); -COMPAT_SYSCALL_WRAP1(swapoff, const char __user *, specialfile); -COMPAT_SYSCALL_WRAP2(setdomainname, char __user *, name, int, len); -COMPAT_SYSCALL_WRAP1(newuname, struct new_utsname __user *, name); -COMPAT_SYSCALL_WRAP3(mprotect, unsigned long, start, size_t, len, unsigned long, prot); -COMPAT_SYSCALL_WRAP3(init_module, void __user *, umod, unsigned long, len, const char __user *, uargs); -COMPAT_SYSCALL_WRAP2(delete_module, const char __user *, name_user, unsigned int, flags); -COMPAT_SYSCALL_WRAP4(quotactl, unsigned int, cmd, const char __user *, special, qid_t, id, void __user *, addr); -COMPAT_SYSCALL_WRAP2(bdflush, int, func, long, data); -COMPAT_SYSCALL_WRAP3(sysfs, int, option, unsigned long, arg1, unsigned long, arg2); -COMPAT_SYSCALL_WRAP5(llseek, unsigned int, fd, unsigned long, high, unsigned long, low, loff_t __user *, result, unsigned int, whence); -COMPAT_SYSCALL_WRAP3(msync, unsigned long, start, size_t, len, int, flags); -COMPAT_SYSCALL_WRAP2(mlock, unsigned long, start, size_t, len); -COMPAT_SYSCALL_WRAP2(munlock, unsigned long, start, size_t, len); -COMPAT_SYSCALL_WRAP2(sched_setparam, pid_t, pid, struct sched_param __user *, param); -COMPAT_SYSCALL_WRAP2(sched_getparam, pid_t, pid, struct sched_param __user *, param); -COMPAT_SYSCALL_WRAP3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param); -COMPAT_SYSCALL_WRAP5(mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, unsigned long, new_addr); -COMPAT_SYSCALL_WRAP3(poll, struct pollfd __user *, ufds, unsigned int, nfds, int, timeout); -COMPAT_SYSCALL_WRAP5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, unsigned long, arg4, unsigned long, arg5); -COMPAT_SYSCALL_WRAP2(getcwd, char __user *, buf, unsigned long, size); -COMPAT_SYSCALL_WRAP2(capget, cap_user_header_t, header, cap_user_data_t, dataptr); -COMPAT_SYSCALL_WRAP2(capset, cap_user_header_t, header, const cap_user_data_t, data); -COMPAT_SYSCALL_WRAP3(lchown, const char __user *, filename, uid_t, user, gid_t, group); -COMPAT_SYSCALL_WRAP2(getgroups, int, gidsetsize, gid_t __user *, grouplist); -COMPAT_SYSCALL_WRAP2(setgroups, int, gidsetsize, gid_t __user *, grouplist); -COMPAT_SYSCALL_WRAP3(getresuid, uid_t __user *, ruid, uid_t __user *, euid, uid_t __user *, suid); -COMPAT_SYSCALL_WRAP3(getresgid, gid_t __user *, rgid, gid_t __user *, egid, gid_t __user *, sgid); -COMPAT_SYSCALL_WRAP3(chown, const char __user *, filename, uid_t, user, gid_t, group); -COMPAT_SYSCALL_WRAP2(pivot_root, const char __user *, new_root, const char __user *, put_old); -COMPAT_SYSCALL_WRAP3(mincore, unsigned long, start, size_t, len, unsigned char __user *, vec); -COMPAT_SYSCALL_WRAP3(madvise, unsigned long, start, size_t, len, int, behavior); -COMPAT_SYSCALL_WRAP5(setxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags); -COMPAT_SYSCALL_WRAP5(lsetxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags); -COMPAT_SYSCALL_WRAP5(fsetxattr, int, fd, const char __user *, name, const void __user *, value, size_t, size, int, flags); -COMPAT_SYSCALL_WRAP3(getdents64, unsigned int, fd, struct linux_dirent64 __user *, dirent, unsigned int, count); -COMPAT_SYSCALL_WRAP4(getxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size); -COMPAT_SYSCALL_WRAP4(lgetxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size); -COMPAT_SYSCALL_WRAP4(fgetxattr, int, fd, const char __user *, name, void __user *, value, size_t, size); -COMPAT_SYSCALL_WRAP3(listxattr, const char __user *, path, char __user *, list, size_t, size); -COMPAT_SYSCALL_WRAP3(llistxattr, const char __user *, path, char __user *, list, size_t, size); -COMPAT_SYSCALL_WRAP3(flistxattr, int, fd, char __user *, list, size_t, size); -COMPAT_SYSCALL_WRAP2(removexattr, const char __user *, path, const char __user *, name); -COMPAT_SYSCALL_WRAP2(lremovexattr, const char __user *, path, const char __user *, name); -COMPAT_SYSCALL_WRAP2(fremovexattr, int, fd, const char __user *, name); -COMPAT_SYSCALL_WRAP1(set_tid_address, int __user *, tidptr); -COMPAT_SYSCALL_WRAP4(epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event); -COMPAT_SYSCALL_WRAP4(epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout); -COMPAT_SYSCALL_WRAP1(io_destroy, aio_context_t, ctx); -COMPAT_SYSCALL_WRAP3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result); -COMPAT_SYSCALL_WRAP1(mq_unlink, const char __user *, name); -COMPAT_SYSCALL_WRAP5(add_key, const char __user *, tp, const char __user *, dsc, const void __user *, pld, size_t, len, key_serial_t, id); -COMPAT_SYSCALL_WRAP4(request_key, const char __user *, tp, const char __user *, dsc, const char __user *, info, key_serial_t, id); -COMPAT_SYSCALL_WRAP5(remap_file_pages, unsigned long, start, unsigned long, size, unsigned long, prot, unsigned long, pgoff, unsigned long, flags); -COMPAT_SYSCALL_WRAP3(inotify_add_watch, int, fd, const char __user *, path, u32, mask); -COMPAT_SYSCALL_WRAP3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode); -COMPAT_SYSCALL_WRAP4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, unsigned, dev); -COMPAT_SYSCALL_WRAP5(fchownat, int, dfd, const char __user *, filename, uid_t, user, gid_t, group, int, flag); -COMPAT_SYSCALL_WRAP3(unlinkat, int, dfd, const char __user *, pathname, int, flag); -COMPAT_SYSCALL_WRAP4(renameat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname); -COMPAT_SYSCALL_WRAP5(linkat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, int, flags); -COMPAT_SYSCALL_WRAP3(symlinkat, const char __user *, oldname, int, newdfd, const char __user *, newname); -COMPAT_SYSCALL_WRAP4(readlinkat, int, dfd, const char __user *, path, char __user *, buf, int, bufsiz); -COMPAT_SYSCALL_WRAP3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode); -COMPAT_SYSCALL_WRAP3(faccessat, int, dfd, const char __user *, filename, int, mode); -COMPAT_SYSCALL_WRAP1(unshare, unsigned long, unshare_flags); -COMPAT_SYSCALL_WRAP6(splice, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags); -COMPAT_SYSCALL_WRAP4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags); -COMPAT_SYSCALL_WRAP3(getcpu, unsigned __user *, cpu, unsigned __user *, node, struct getcpu_cache __user *, cache); -COMPAT_SYSCALL_WRAP2(pipe2, int __user *, fildes, int, flags); -COMPAT_SYSCALL_WRAP5(perf_event_open, struct perf_event_attr __user *, attr_uptr, pid_t, pid, int, cpu, int, group_fd, unsigned long, flags); -COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, int __user *, parent_tidptr, int __user *, child_tidptr, unsigned long, tls); -COMPAT_SYSCALL_WRAP4(prlimit64, pid_t, pid, unsigned int, resource, const struct rlimit64 __user *, new_rlim, struct rlimit64 __user *, old_rlim); -COMPAT_SYSCALL_WRAP5(name_to_handle_at, int, dfd, const char __user *, name, struct file_handle __user *, handle, int __user *, mnt_id, int, flag); -COMPAT_SYSCALL_WRAP5(kcmp, pid_t, pid1, pid_t, pid2, int, type, unsigned long, idx1, unsigned long, idx2); -COMPAT_SYSCALL_WRAP3(finit_module, int, fd, const char __user *, uargs, int, flags); -COMPAT_SYSCALL_WRAP3(sched_setattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, flags); -COMPAT_SYSCALL_WRAP4(sched_getattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, size, unsigned int, flags); -COMPAT_SYSCALL_WRAP5(renameat2, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, unsigned int, flags); -COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, const char __user *, uargs) -COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags) -COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags) -COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size); -COMPAT_SYSCALL_WRAP3(s390_pci_mmio_write, const unsigned long, mmio_addr, const void __user *, user_buffer, const size_t, length); -COMPAT_SYSCALL_WRAP3(s390_pci_mmio_read, const unsigned long, mmio_addr, void __user *, user_buffer, const size_t, length); -COMPAT_SYSCALL_WRAP4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec); -COMPAT_SYSCALL_WRAP3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen); -COMPAT_SYSCALL_WRAP3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen); -COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags); -COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len); -COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len); -COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len); -COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags); diff --git a/include/linux/compat_wrapper.h b/include/linux/compat_wrapper.h new file mode 100644 index 0000000..6f22732 --- /dev/null +++ b/include/linux/compat_wrapper.h @@ -0,0 +1,270 @@ +#ifndef __COMPAT_WRAPPER +#define __COMPAT_WRAPPER + +#include + +#define COMPAT_SYSCALL_WRAP1(name, ...) \ + COMPAT_SYSCALL_WRAPx(1, _##name, __VA_ARGS__) +#define COMPAT_SYSCALL_WRAP2(name, ...) \ + COMPAT_SYSCALL_WRAPx(2, _##name, __VA_ARGS__) +#define COMPAT_SYSCALL_WRAP3(name, ...) \ + COMPAT_SYSCALL_WRAPx(3, _##name, __VA_ARGS__) +#define COMPAT_SYSCALL_WRAP4(name, ...) \ + COMPAT_SYSCALL_WRAPx(4, _##name, __VA_ARGS__) +#define COMPAT_SYSCALL_WRAP5(name, ...) \ + COMPAT_SYSCALL_WRAPx(5, _##name, __VA_ARGS__) +#define COMPAT_SYSCALL_WRAP6(name, ...) \ + COMPAT_SYSCALL_WRAPx(6, _##name, __VA_ARGS__) + +#ifndef __SC_COMPAT_TYPE +#define __SC_COMPAT_TYPE(t, a) \ + __typeof(__builtin_choose_expr(sizeof(t) > 4, 0L, (t)0)) a +#endif + +#ifndef __SC_COMPAT_CAST +#define __SC_COMPAT_CAST(t, a) ((t)(long) ((t)(-1) < 0 ? (s32)(a) : (u32)(a))) +#endif +/* + * The COMPAT_SYSCALL_WRAP macro generates system call wrappers to be used by + * compat tasks. These wrappers will only be used for system calls where only + * the system call arguments need sign or zero extension or zeroing of the upper + * 33 bits of pointers. + * Note: since the wrapper function will afterwards call a system call which + * again performs zero and sign extension for all system call arguments with + * a size of less than eight bytes, these compat wrappers only touch those + * system call arguments with a size of eight bytes ((unsigned) long and + * pointers). Zero and sign extension for e.g. int parameters will be done by + * the regular system call wrappers. + */ +#ifndef COMPAT_SYSCALL_WRAPx +#define COMPAT_SYSCALL_WRAPx(x, name, ...) \ +asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)); \ +asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) \ + __attribute__((alias(__stringify(compat_SyS##name)))); \ +asmlinkage long notrace compat_SyS##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__)); \ +asmlinkage long notrace compat_SyS##name(__MAP(x,__SC_COMPAT_TYPE,__VA_ARGS__)) \ +{ \ + return sys##name(__MAP(x,__SC_COMPAT_CAST,__VA_ARGS__)); \ +} +#endif + +asmlinkage long compat_sys_creat(const char __user *pathname, umode_t mode); +asmlinkage long compat_sys_link(const char __user *oldname, + const char __user *newname); +asmlinkage long compat_sys_chdir(const char __user *filename); +asmlinkage long compat_sys_mknod(const char __user *filename, umode_t mode, + unsigned dev); +asmlinkage long compat_sys_chmod(const char __user *filename, umode_t mode); +asmlinkage long compat_sys_oldumount(char __user *name); +asmlinkage long compat_sys_access(const char __user *filename, int mode); +asmlinkage long compat_sys_rename(const char __user *oldname, + const char __user *newname); +asmlinkage long compat_sys_mkdir(const char __user *pathname, umode_t mode); +asmlinkage long compat_sys_rmdir(const char __user *pathname); +asmlinkage long compat_sys_pipe(int __user *fildes); +asmlinkage long compat_sys_brk(unsigned long brk); +asmlinkage long compat_sys_signal(int sig, __sighandler_t handler); +asmlinkage long compat_sys_acct(const char __user *name); +asmlinkage long compat_sys_umount(char __user *name, int flags); +asmlinkage long compat_sys_chroot(const char __user *filename); + +#ifdef CONFIG_OLD_SIGSUSPEND +asmlinkage long compat_sys_sigsuspend(old_sigset_t mask); +#endif + +#ifdef CONFIG_OLD_SIGSUSPEND3 +asmlinkage long compat_sys_sigsuspend(int unused1, int unused2, old_sigset_t mask); +#endif + +asmlinkage long compat_sys_sethostname(char __user *name, int len); +asmlinkage long compat_sys_symlink(const char __user *old, const char __user *new); +asmlinkage long compat_sys_readlink(const char __user *path, + char __user *buf, int bufsiz); +asmlinkage long compat_sys_uselib(const char __user *library); +asmlinkage long compat_sys_swapon(const char __user *specialfile, int swap_flags); +asmlinkage long compat_sys_reboot(int magic1, int magic2, unsigned int cmd, + void __user *arg); +asmlinkage long compat_sys_munmap(unsigned long addr, size_t len); +asmlinkage long compat_sys_munmap(unsigned long addr, size_t len); +asmlinkage long compat_sys_syslog(int type, char __user *buf, int len); +asmlinkage long compat_sys_swapoff(const char __user *specialfile); +asmlinkage long compat_sys_setdomainname(char __user *name, int len); +asmlinkage long compat_sys_newuname(struct new_utsname __user *name); +asmlinkage long compat_sys_mprotect(unsigned long start, size_t len, + unsigned long prot); +asmlinkage long compat_sys_init_module(void __user *umod, unsigned long len, + const char __user *uargs); +asmlinkage long compat_sys_delete_module(const char __user *name_user, + unsigned int flags); +asmlinkage long compat_sys_quotactl(unsigned int cmd, const char __user *special, + qid_t id, void __user *addr); +asmlinkage long compat_sys_bdflush(int func, long data); +asmlinkage long compat_sys_sysfs(int option, + unsigned long arg1, unsigned long arg2); +asmlinkage long compat_sys_llseek(unsigned int fd, unsigned long offset_high, + unsigned long offset_low, loff_t __user *result, + unsigned int whence); +asmlinkage long compat_sys_msync(unsigned long start, size_t len, int flags); +asmlinkage long compat_sys_mlock(unsigned long start, size_t len); +asmlinkage long compat_sys_munlock(unsigned long start, size_t len); +asmlinkage long compat_sys_sched_setparam(pid_t pid, + struct sched_param __user *param); +asmlinkage long compat_sys_sched_getparam(pid_t pid, + struct sched_param __user *param); +asmlinkage long compat_sys_sched_setscheduler(pid_t pid, int policy, + struct sched_param __user *param); +asmlinkage long compat_sys_mremap(unsigned long addr, + unsigned long old_len, unsigned long new_len, + unsigned long flags, unsigned long new_addr); +asmlinkage long compat_sys_poll(struct pollfd __user *ufds, unsigned int nfds, + int timeout); +asmlinkage long compat_sys_prctl(int option, unsigned long arg2, unsigned long arg3, + unsigned long arg4, unsigned long arg5); +asmlinkage long compat_sys_getcwd(char __user *buf, unsigned long size); +asmlinkage long compat_sys_capget(cap_user_header_t header, + cap_user_data_t dataptr); +asmlinkage long compat_sys_capset(cap_user_header_t header, + const cap_user_data_t data); +asmlinkage long compat_sys_lchown(const char __user *filename, + uid_t user, gid_t group); +asmlinkage long compat_sys_getgroups(int gidsetsize, gid_t __user *grouplist); +asmlinkage long compat_sys_setgroups(int gidsetsize, gid_t __user *grouplist); +asmlinkage long compat_sys_getresuid(uid_t __user *ruid, uid_t __user *euid, uid_t __user *suid); +asmlinkage long compat_sys_getresgid(gid_t __user *rgid, gid_t __user *egid, gid_t __user *sgid); +asmlinkage long compat_sys_chown(const char __user *filename, + uid_t user, gid_t group); +asmlinkage long compat_sys_pivot_root(const char __user *new_root, + const char __user *put_old); +asmlinkage long compat_sys_mincore(unsigned long start, size_t len, + unsigned char __user * vec); +asmlinkage long compat_sys_madvise(unsigned long start, size_t len, int behavior); +asmlinkage long compat_sys_setxattr(const char __user *path, const char __user *name, + const void __user *value, size_t size, int flags); +asmlinkage long compat_sys_lsetxattr(const char __user *path, const char __user *name, + const void __user *value, size_t size, int flags); +asmlinkage long compat_sys_fsetxattr(int fd, const char __user *name, + const void __user *value, size_t size, int flags); +asmlinkage long compat_sys_getdents64(unsigned int fd, + struct linux_dirent64 __user *dirent, + unsigned int count); +asmlinkage long compat_sys_getxattr(const char __user *path, const char __user *name, + void __user *value, size_t size); +asmlinkage long compat_sys_lgetxattr(const char __user *path, const char __user *name, + void __user *value, size_t size); +asmlinkage long compat_sys_fgetxattr(int fd, const char __user *name, + void __user *value, size_t size); +asmlinkage long compat_sys_listxattr(const char __user *path, char __user *list, + size_t size); +asmlinkage long compat_sys_llistxattr(const char __user *path, char __user *list, + size_t size); +asmlinkage long compat_sys_flistxattr(int fd, char __user *list, size_t size); +asmlinkage long compat_sys_listxattr(const char __user *path, char __user *list, + size_t size); +asmlinkage long compat_sys_llistxattr(const char __user *path, char __user *list, + size_t size); +asmlinkage long compat_sys_flistxattr(int fd, char __user *list, size_t size); +asmlinkage long compat_sys_removexattr(const char __user *path, + const char __user *name); +asmlinkage long compat_sys_lremovexattr(const char __user *path, + const char __user *name); +asmlinkage long compat_sys_fremovexattr(int fd, const char __user *name); +asmlinkage long compat_sys_set_tid_address(int __user *tidptr); +asmlinkage long compat_sys_epoll_ctl(int epfd, int op, int fd, + struct epoll_event __user *event); +asmlinkage long compat_sys_epoll_wait(int epfd, struct epoll_event __user *events, + int maxevents, int timeout); +asmlinkage long compat_sys_io_destroy(aio_context_t ctx); +asmlinkage long compat_sys_io_cancel(aio_context_t ctx_id, struct iocb __user *iocb, + struct io_event __user *result); +asmlinkage long compat_sys_mq_unlink(const char __user *name); +asmlinkage long compat_sys_add_key(const char __user *_type, + const char __user *_description, + const void __user *_payload, + size_t plen, + key_serial_t destringid); +asmlinkage long compat_sys_request_key(const char __user *_type, + const char __user *_description, + const char __user *_callout_info, + key_serial_t destringid); +asmlinkage long compat_sys_remap_file_pages(unsigned long start, unsigned long size, + unsigned long prot, unsigned long pgoff, + unsigned long flags); +asmlinkage long compat_sys_inotify_add_watch(int fd, const char __user *path, + u32 mask); +asmlinkage long compat_sys_mknodat(int dfd, const char __user * filename, umode_t mode, + unsigned dev); +asmlinkage long compat_sys_mkdirat(int dfd, const char __user * pathname, umode_t mode); +asmlinkage long compat_sys_fchownat(int dfd, const char __user *filename, uid_t user, + gid_t group, int flag); +asmlinkage long compat_sys_unlinkat(int dfd, const char __user * pathname, int flag); +asmlinkage long compat_sys_renameat(int olddfd, const char __user * oldname, + int newdfd, const char __user * newname); +asmlinkage long compat_sys_symlinkat(const char __user * oldname, + int newdfd, const char __user * newname); +asmlinkage long compat_sys_linkat(int olddfd, const char __user *oldname, + int newdfd, const char __user *newname, int flags); +asmlinkage long compat_sys_readlinkat(int dfd, const char __user *path, char __user *buf, + int bufsiz); +asmlinkage long compat_sys_fchmodat(int dfd, const char __user * filename, + umode_t mode); +asmlinkage long compat_sys_faccessat(int dfd, const char __user *filename, int mode); +asmlinkage long compat_sys_unshare(unsigned long unshare_flags); +asmlinkage long compat_sys_splice(int fd_in, loff_t __user *off_in, + int fd_out, loff_t __user *off_out, + size_t len, unsigned int flags); +asmlinkage long compat_sys_tee(int fdin, int fdout, size_t len, unsigned int flags); +asmlinkage long compat_sys_getcpu(unsigned __user *cpu, unsigned __user *node, struct getcpu_cache __user *cache); +asmlinkage long compat_sys_pipe2(int __user *fildes, int flags); +asmlinkage long compat_sys_perf_event_open( + struct perf_event_attr __user *attr_uptr, + pid_t pid, int cpu, int group_fd, unsigned long flags); + +#ifdef CONFIG_CLONE_BACKWARDS +asmlinkage long compat_sys_clone(unsigned long, unsigned long, int __user *, unsigned long, + int __user *); +#else +#ifdef CONFIG_CLONE_BACKWARDS3 +asmlinkage long compat_sys_clone(unsigned long, unsigned long, int, int __user *, + int __user *, unsigned long); +#else +asmlinkage long compat_sys_clone(unsigned long, unsigned long, int __user *, + int __user *, unsigned long); +#endif +#endif + +asmlinkage long compat_sys_prlimit64(pid_t pid, unsigned int resource, + const struct rlimit64 __user *new_rlim, + struct rlimit64 __user *old_rlim); +asmlinkage long compat_sys_name_to_handle_at(int dfd, const char __user *name, + struct file_handle __user *handle, + int __user *mnt_id, int flag); +asmlinkage long compat_sys_kcmp(pid_t pid1, pid_t pid2, int type, + unsigned long idx1, unsigned long idx2); +asmlinkage long compat_sys_finit_module(int fd, const char __user *uargs, int flags); +asmlinkage long compat_sys_sched_setattr(pid_t pid, + struct sched_attr __user *attr, + unsigned int flags); +asmlinkage long compat_sys_sched_getattr(pid_t pid, + struct sched_attr __user *attr, + unsigned int size, + unsigned int flags); +asmlinkage long compat_sys_renameat2(int olddfd, const char __user *oldname, + int newdfd, const char __user *newname, + unsigned int flags); +asmlinkage long compat_sys_seccomp(unsigned int op, unsigned int flags, + const char __user *uargs); +asmlinkage long compat_sys_getrandom(char __user *buf, size_t count, + unsigned int flags); +asmlinkage long compat_sys_memfd_create(const char __user *uname_ptr, unsigned int flags); +asmlinkage long compat_sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); +asmlinkage long compat_sys_socketpair(int, int, int, int __user *); +asmlinkage long compat_sys_bind(int, struct sockaddr __user *, int); +asmlinkage long compat_sys_connect(int, struct sockaddr __user *, int); +asmlinkage long compat_sys_accept4(int, struct sockaddr __user *, int __user *, int); +asmlinkage long compat_sys_getsockname(int, struct sockaddr __user *, int __user *); +asmlinkage long compat_sys_getpeername(int, struct sockaddr __user *, int __user *); +asmlinkage long compat_sys_sendto(int, void __user *, size_t, unsigned, + struct sockaddr __user *, int); +asmlinkage long compat_sys_mlock2(unsigned long start, size_t len, int flags); + +#endif /*__COMPAT_WRAPPER */ diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 1324b02..5a5c53c 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -29,46 +29,50 @@ #define __SC_COMP_3264(_nr, _32, _64, _comp) __SC_3264(_nr, _32, _64) #endif +#ifndef __SC_WRAP +#define __SC_WRAP(x,y) __SYSCALL(x, y) +#endif + #define __NR_io_setup 0 __SC_COMP(__NR_io_setup, sys_io_setup, compat_sys_io_setup) #define __NR_io_destroy 1 -__SYSCALL(__NR_io_destroy, sys_io_destroy) +__SC_WRAP(__NR_io_destroy, sys_io_destroy) #define __NR_io_submit 2 __SC_COMP(__NR_io_submit, sys_io_submit, compat_sys_io_submit) #define __NR_io_cancel 3 -__SYSCALL(__NR_io_cancel, sys_io_cancel) +__SC_WRAP(__NR_io_cancel, sys_io_cancel) #define __NR_io_getevents 4 __SC_COMP(__NR_io_getevents, sys_io_getevents, compat_sys_io_getevents) /* fs/xattr.c */ #define __NR_setxattr 5 -__SYSCALL(__NR_setxattr, sys_setxattr) +__SC_WRAP(__NR_setxattr, sys_setxattr) #define __NR_lsetxattr 6 -__SYSCALL(__NR_lsetxattr, sys_lsetxattr) +__SC_WRAP(__NR_lsetxattr, sys_lsetxattr) #define __NR_fsetxattr 7 -__SYSCALL(__NR_fsetxattr, sys_fsetxattr) +__SC_WRAP(__NR_fsetxattr, sys_fsetxattr) #define __NR_getxattr 8 -__SYSCALL(__NR_getxattr, sys_getxattr) +__SC_WRAP(__NR_getxattr, sys_getxattr) #define __NR_lgetxattr 9 -__SYSCALL(__NR_lgetxattr, sys_lgetxattr) +__SC_WRAP(__NR_lgetxattr, sys_lgetxattr) #define __NR_fgetxattr 10 -__SYSCALL(__NR_fgetxattr, sys_fgetxattr) +__SC_WRAP(__NR_fgetxattr, sys_fgetxattr) #define __NR_listxattr 11 -__SYSCALL(__NR_listxattr, sys_listxattr) +__SC_WRAP(__NR_listxattr, sys_listxattr) #define __NR_llistxattr 12 -__SYSCALL(__NR_llistxattr, sys_llistxattr) +__SC_WRAP(__NR_llistxattr, sys_llistxattr) #define __NR_flistxattr 13 -__SYSCALL(__NR_flistxattr, sys_flistxattr) +__SC_WRAP(__NR_flistxattr, sys_flistxattr) #define __NR_removexattr 14 -__SYSCALL(__NR_removexattr, sys_removexattr) +__SC_WRAP(__NR_removexattr, sys_removexattr) #define __NR_lremovexattr 15 -__SYSCALL(__NR_lremovexattr, sys_lremovexattr) +__SC_WRAP(__NR_lremovexattr, sys_lremovexattr) #define __NR_fremovexattr 16 -__SYSCALL(__NR_fremovexattr, sys_fremovexattr) +__SC_WRAP(__NR_fremovexattr, sys_fremovexattr) /* fs/dcache.c */ #define __NR_getcwd 17 -__SYSCALL(__NR_getcwd, sys_getcwd) +__SC_WRAP(__NR_getcwd, sys_getcwd) /* fs/cookies.c */ #define __NR_lookup_dcookie 18 @@ -82,7 +86,7 @@ __SYSCALL(__NR_eventfd2, sys_eventfd2) #define __NR_epoll_create1 20 __SYSCALL(__NR_epoll_create1, sys_epoll_create1) #define __NR_epoll_ctl 21 -__SYSCALL(__NR_epoll_ctl, sys_epoll_ctl) +__SC_WRAP(__NR_epoll_ctl, sys_epoll_ctl) #define __NR_epoll_pwait 22 __SC_COMP(__NR_epoll_pwait, sys_epoll_pwait, compat_sys_epoll_pwait) @@ -98,7 +102,7 @@ __SC_COMP_3264(__NR3264_fcntl, sys_fcntl64, sys_fcntl, compat_sys_fcntl64) #define __NR_inotify_init1 26 __SYSCALL(__NR_inotify_init1, sys_inotify_init1) #define __NR_inotify_add_watch 27 -__SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch) +__SC_WRAP(__NR_inotify_add_watch, sys_inotify_add_watch) #define __NR_inotify_rm_watch 28 __SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch) @@ -118,17 +122,17 @@ __SYSCALL(__NR_flock, sys_flock) /* fs/namei.c */ #define __NR_mknodat 33 -__SYSCALL(__NR_mknodat, sys_mknodat) +__SC_WRAP(__NR_mknodat, sys_mknodat) #define __NR_mkdirat 34 -__SYSCALL(__NR_mkdirat, sys_mkdirat) +__SC_WRAP(__NR_mkdirat, sys_mkdirat) #define __NR_unlinkat 35 -__SYSCALL(__NR_unlinkat, sys_unlinkat) +__SC_WRAP(__NR_unlinkat, sys_unlinkat) #define __NR_symlinkat 36 -__SYSCALL(__NR_symlinkat, sys_symlinkat) +__SC_WRAP(__NR_symlinkat, sys_symlinkat) #define __NR_linkat 37 -__SYSCALL(__NR_linkat, sys_linkat) +__SC_WRAP(__NR_linkat, sys_linkat) #define __NR_renameat 38 -__SYSCALL(__NR_renameat, sys_renameat) +__SC_WRAP(__NR_renameat, sys_renameat) /* fs/namespace.c */ #define __NR_umount2 39 @@ -136,7 +140,7 @@ __SYSCALL(__NR_umount2, sys_umount) #define __NR_mount 40 __SC_COMP(__NR_mount, sys_mount, compat_sys_mount) #define __NR_pivot_root 41 -__SYSCALL(__NR_pivot_root, sys_pivot_root) +__SC_WRAP(__NR_pivot_root, sys_pivot_root) /* fs/nfsctl.c */ #define __NR_nfsservctl 42 @@ -159,19 +163,19 @@ __SC_COMP_3264(__NR3264_ftruncate, sys_ftruncate64, sys_ftruncate, \ #define __NR_fallocate 47 __SC_COMP(__NR_fallocate, sys_fallocate, compat_sys_fallocate) #define __NR_faccessat 48 -__SYSCALL(__NR_faccessat, sys_faccessat) +__SC_WRAP(__NR_faccessat, sys_faccessat) #define __NR_chdir 49 -__SYSCALL(__NR_chdir, sys_chdir) +__SC_WRAP(__NR_chdir, sys_chdir) #define __NR_fchdir 50 __SYSCALL(__NR_fchdir, sys_fchdir) #define __NR_chroot 51 -__SYSCALL(__NR_chroot, sys_chroot) +__SC_WRAP(__NR_chroot, sys_chroot) #define __NR_fchmod 52 __SYSCALL(__NR_fchmod, sys_fchmod) #define __NR_fchmodat 53 -__SYSCALL(__NR_fchmodat, sys_fchmodat) +__SC_WRAP(__NR_fchmodat, sys_fchmodat) #define __NR_fchownat 54 -__SYSCALL(__NR_fchownat, sys_fchownat) +__SC_WRAP(__NR_fchownat, sys_fchownat) #define __NR_fchown 55 __SYSCALL(__NR_fchown, sys_fchown) #define __NR_openat 56 @@ -183,11 +187,11 @@ __SYSCALL(__NR_vhangup, sys_vhangup) /* fs/pipe.c */ #define __NR_pipe2 59 -__SYSCALL(__NR_pipe2, sys_pipe2) +__SC_WRAP(__NR_pipe2, sys_pipe2) /* fs/quota.c */ #define __NR_quotactl 60 -__SYSCALL(__NR_quotactl, sys_quotactl) +__SC_WRAP(__NR_quotactl, sys_quotactl) /* fs/readdir.c */ #define __NR_getdents64 61 @@ -232,13 +236,13 @@ __SC_COMP(__NR_signalfd4, sys_signalfd4, compat_sys_signalfd4) #define __NR_vmsplice 75 __SC_COMP(__NR_vmsplice, sys_vmsplice, compat_sys_vmsplice) #define __NR_splice 76 -__SYSCALL(__NR_splice, sys_splice) +__SC_WRAP(__NR_splice, sys_splice) #define __NR_tee 77 -__SYSCALL(__NR_tee, sys_tee) +__SC_WRAP(__NR_tee, sys_tee) /* fs/stat.c */ #define __NR_readlinkat 78 -__SYSCALL(__NR_readlinkat, sys_readlinkat) +__SC_WRAP(__NR_readlinkat, sys_readlinkat) #define __NR3264_fstatat 79 __SC_3264(__NR3264_fstatat, sys_fstatat64, sys_newfstatat) #define __NR3264_fstat 80 @@ -277,13 +281,13 @@ __SC_COMP(__NR_utimensat, sys_utimensat, compat_sys_utimensat) /* kernel/acct.c */ #define __NR_acct 89 -__SYSCALL(__NR_acct, sys_acct) +__SC_WRAP(__NR_acct, sys_acct) /* kernel/capability.c */ #define __NR_capget 90 -__SYSCALL(__NR_capget, sys_capget) +__SC_WRAP(__NR_capget, sys_capget) #define __NR_capset 91 -__SYSCALL(__NR_capset, sys_capset) +__SC_WRAP(__NR_capset, sys_capset) /* kernel/exec_domain.c */ #define __NR_personality 92 @@ -299,9 +303,9 @@ __SC_COMP(__NR_waitid, sys_waitid, compat_sys_waitid) /* kernel/fork.c */ #define __NR_set_tid_address 96 -__SYSCALL(__NR_set_tid_address, sys_set_tid_address) +__SC_WRAP(__NR_set_tid_address, sys_set_tid_address) #define __NR_unshare 97 -__SYSCALL(__NR_unshare, sys_unshare) +__SC_WRAP(__NR_unshare, sys_unshare) /* kernel/futex.c */ #define __NR_futex 98 @@ -329,9 +333,9 @@ __SC_COMP(__NR_kexec_load, sys_kexec_load, compat_sys_kexec_load) /* kernel/module.c */ #define __NR_init_module 105 -__SYSCALL(__NR_init_module, sys_init_module) +__SC_WRAP(__NR_init_module, sys_init_module) #define __NR_delete_module 106 -__SYSCALL(__NR_delete_module, sys_delete_module) +__SC_WRAP(__NR_delete_module, sys_delete_module) /* kernel/posix-timers.c */ #define __NR_timer_create 107 @@ -356,7 +360,7 @@ __SC_COMP(__NR_clock_nanosleep, sys_clock_nanosleep, \ /* kernel/printk.c */ #define __NR_syslog 116 -__SYSCALL(__NR_syslog, sys_syslog) +__SC_WRAP(__NR_syslog, sys_syslog) /* kernel/ptrace.c */ #define __NR_ptrace 117 @@ -364,13 +368,13 @@ __SYSCALL(__NR_ptrace, sys_ptrace) /* kernel/sched/core.c */ #define __NR_sched_setparam 118 -__SYSCALL(__NR_sched_setparam, sys_sched_setparam) +__SC_WRAP(__NR_sched_setparam, sys_sched_setparam) #define __NR_sched_setscheduler 119 -__SYSCALL(__NR_sched_setscheduler, sys_sched_setscheduler) +__SC_WRAP(__NR_sched_setscheduler, sys_sched_setscheduler) #define __NR_sched_getscheduler 120 __SYSCALL(__NR_sched_getscheduler, sys_sched_getscheduler) #define __NR_sched_getparam 121 -__SYSCALL(__NR_sched_getparam, sys_sched_getparam) +__SC_WRAP(__NR_sched_getparam, sys_sched_getparam) #define __NR_sched_setaffinity 122 __SC_COMP(__NR_sched_setaffinity, sys_sched_setaffinity, \ compat_sys_sched_setaffinity) @@ -421,7 +425,7 @@ __SYSCALL(__NR_setpriority, sys_setpriority) #define __NR_getpriority 141 __SYSCALL(__NR_getpriority, sys_getpriority) #define __NR_reboot 142 -__SYSCALL(__NR_reboot, sys_reboot) +__SC_WRAP(__NR_reboot, sys_reboot) #define __NR_setregid 143 __SYSCALL(__NR_setregid, sys_setregid) #define __NR_setgid 144 @@ -433,11 +437,11 @@ __SYSCALL(__NR_setuid, sys_setuid) #define __NR_setresuid 147 __SYSCALL(__NR_setresuid, sys_setresuid) #define __NR_getresuid 148 -__SYSCALL(__NR_getresuid, sys_getresuid) +__SC_WRAP(__NR_getresuid, sys_getresuid) #define __NR_setresgid 149 __SYSCALL(__NR_setresgid, sys_setresgid) #define __NR_getresgid 150 -__SYSCALL(__NR_getresgid, sys_getresgid) +__SC_WRAP(__NR_getresgid, sys_getresgid) #define __NR_setfsuid 151 __SYSCALL(__NR_setfsuid, sys_setfsuid) #define __NR_setfsgid 152 @@ -453,15 +457,15 @@ __SYSCALL(__NR_getsid, sys_getsid) #define __NR_setsid 157 __SYSCALL(__NR_setsid, sys_setsid) #define __NR_getgroups 158 -__SYSCALL(__NR_getgroups, sys_getgroups) +__SC_WRAP(__NR_getgroups, sys_getgroups) #define __NR_setgroups 159 -__SYSCALL(__NR_setgroups, sys_setgroups) +__SC_WRAP(__NR_setgroups, sys_setgroups) #define __NR_uname 160 -__SYSCALL(__NR_uname, sys_newuname) +__SC_WRAP(__NR_uname, sys_newuname) #define __NR_sethostname 161 -__SYSCALL(__NR_sethostname, sys_sethostname) +__SC_WRAP(__NR_sethostname, sys_sethostname) #define __NR_setdomainname 162 -__SYSCALL(__NR_setdomainname, sys_setdomainname) +__SC_WRAP(__NR_setdomainname, sys_setdomainname) #define __NR_getrlimit 163 __SC_COMP(__NR_getrlimit, sys_getrlimit, compat_sys_getrlimit) #define __NR_setrlimit 164 @@ -471,9 +475,9 @@ __SC_COMP(__NR_getrusage, sys_getrusage, compat_sys_getrusage) #define __NR_umask 166 __SYSCALL(__NR_umask, sys_umask) #define __NR_prctl 167 -__SYSCALL(__NR_prctl, sys_prctl) +__SC_WRAP(__NR_prctl, sys_prctl) #define __NR_getcpu 168 -__SYSCALL(__NR_getcpu, sys_getcpu) +__SC_WRAP(__NR_getcpu, sys_getcpu) /* kernel/time.c */ #define __NR_gettimeofday 169 @@ -505,7 +509,7 @@ __SC_COMP(__NR_sysinfo, sys_sysinfo, compat_sys_sysinfo) #define __NR_mq_open 180 __SC_COMP(__NR_mq_open, sys_mq_open, compat_sys_mq_open) #define __NR_mq_unlink 181 -__SYSCALL(__NR_mq_unlink, sys_mq_unlink) +__SC_WRAP(__NR_mq_unlink, sys_mq_unlink) #define __NR_mq_timedsend 182 __SC_COMP(__NR_mq_timedsend, sys_mq_timedsend, compat_sys_mq_timedsend) #define __NR_mq_timedreceive 183 @@ -550,21 +554,21 @@ __SYSCALL(__NR_shmdt, sys_shmdt) #define __NR_socket 198 __SYSCALL(__NR_socket, sys_socket) #define __NR_socketpair 199 -__SYSCALL(__NR_socketpair, sys_socketpair) +__SC_WRAP(__NR_socketpair, sys_socketpair) #define __NR_bind 200 -__SYSCALL(__NR_bind, sys_bind) +__SC_WRAP(__NR_bind, sys_bind) #define __NR_listen 201 __SYSCALL(__NR_listen, sys_listen) #define __NR_accept 202 __SYSCALL(__NR_accept, sys_accept) #define __NR_connect 203 -__SYSCALL(__NR_connect, sys_connect) +__SC_WRAP(__NR_connect, sys_connect) #define __NR_getsockname 204 -__SYSCALL(__NR_getsockname, sys_getsockname) +__SC_WRAP(__NR_getsockname, sys_getsockname) #define __NR_getpeername 205 -__SYSCALL(__NR_getpeername, sys_getpeername) +__SC_WRAP(__NR_getpeername, sys_getpeername) #define __NR_sendto 206 -__SYSCALL(__NR_sendto, sys_sendto) +__SC_WRAP(__NR_sendto, sys_sendto) #define __NR_recvfrom 207 __SC_COMP(__NR_recvfrom, sys_recvfrom, compat_sys_recvfrom) #define __NR_setsockopt 208 @@ -584,23 +588,23 @@ __SC_COMP(__NR_readahead, sys_readahead, compat_sys_readahead) /* mm/nommu.c, also with MMU */ #define __NR_brk 214 -__SYSCALL(__NR_brk, sys_brk) +__SC_WRAP(__NR_brk, sys_brk) #define __NR_munmap 215 -__SYSCALL(__NR_munmap, sys_munmap) +__SC_WRAP(__NR_munmap, sys_munmap) #define __NR_mremap 216 -__SYSCALL(__NR_mremap, sys_mremap) +__SC_WRAP(__NR_mremap, sys_mremap) /* security/keys/keyctl.c */ #define __NR_add_key 217 -__SYSCALL(__NR_add_key, sys_add_key) +__SC_WRAP(__NR_add_key, sys_add_key) #define __NR_request_key 218 -__SYSCALL(__NR_request_key, sys_request_key) +__SC_WRAP(__NR_request_key, sys_request_key) #define __NR_keyctl 219 __SC_COMP(__NR_keyctl, sys_keyctl, compat_sys_keyctl) /* arch/example/kernel/sys_example.c */ #define __NR_clone 220 -__SYSCALL(__NR_clone, sys_clone) +__SC_WRAP(__NR_clone, sys_clone) #define __NR_execve 221 __SC_COMP(__NR_execve, sys_execve, compat_sys_execve) @@ -613,27 +617,27 @@ __SC_COMP(__NR3264_fadvise64, sys_fadvise64_64, compat_sys_fadvise64_64) /* mm/, CONFIG_MMU only */ #ifndef __ARCH_NOMMU #define __NR_swapon 224 -__SYSCALL(__NR_swapon, sys_swapon) +__SC_WRAP(__NR_swapon, sys_swapon) #define __NR_swapoff 225 -__SYSCALL(__NR_swapoff, sys_swapoff) +__SC_WRAP(__NR_swapoff, sys_swapoff) #define __NR_mprotect 226 -__SYSCALL(__NR_mprotect, sys_mprotect) +__SC_WRAP(__NR_mprotect, sys_mprotect) #define __NR_msync 227 -__SYSCALL(__NR_msync, sys_msync) +__SC_WRAP(__NR_msync, sys_msync) #define __NR_mlock 228 -__SYSCALL(__NR_mlock, sys_mlock) +__SC_WRAP(__NR_mlock, sys_mlock) #define __NR_munlock 229 -__SYSCALL(__NR_munlock, sys_munlock) +__SC_WRAP(__NR_munlock, sys_munlock) #define __NR_mlockall 230 __SYSCALL(__NR_mlockall, sys_mlockall) #define __NR_munlockall 231 __SYSCALL(__NR_munlockall, sys_munlockall) #define __NR_mincore 232 -__SYSCALL(__NR_mincore, sys_mincore) +__SC_WRAP(__NR_mincore, sys_mincore) #define __NR_madvise 233 -__SYSCALL(__NR_madvise, sys_madvise) +__SC_WRAP(__NR_madvise, sys_madvise) #define __NR_remap_file_pages 234 -__SYSCALL(__NR_remap_file_pages, sys_remap_file_pages) +__SC_WRAP(__NR_remap_file_pages, sys_remap_file_pages) #define __NR_mbind 235 __SC_COMP(__NR_mbind, sys_mbind, compat_sys_mbind) #define __NR_get_mempolicy 236 @@ -650,9 +654,9 @@ __SC_COMP(__NR_move_pages, sys_move_pages, compat_sys_move_pages) __SC_COMP(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo, \ compat_sys_rt_tgsigqueueinfo) #define __NR_perf_event_open 241 -__SYSCALL(__NR_perf_event_open, sys_perf_event_open) +__SC_WRAP(__NR_perf_event_open, sys_perf_event_open) #define __NR_accept4 242 -__SYSCALL(__NR_accept4, sys_accept4) +__SC_WRAP(__NR_accept4, sys_accept4) #define __NR_recvmmsg 243 __SC_COMP(__NR_recvmmsg, sys_recvmmsg, compat_sys_recvmmsg) @@ -665,13 +669,13 @@ __SC_COMP(__NR_recvmmsg, sys_recvmmsg, compat_sys_recvmmsg) #define __NR_wait4 260 __SC_COMP(__NR_wait4, sys_wait4, compat_sys_wait4) #define __NR_prlimit64 261 -__SYSCALL(__NR_prlimit64, sys_prlimit64) +__SC_WRAP(__NR_prlimit64, sys_prlimit64) #define __NR_fanotify_init 262 __SYSCALL(__NR_fanotify_init, sys_fanotify_init) #define __NR_fanotify_mark 263 __SYSCALL(__NR_fanotify_mark, sys_fanotify_mark) #define __NR_name_to_handle_at 264 -__SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at) +__SC_WRAP(__NR_name_to_handle_at, sys_name_to_handle_at) #define __NR_open_by_handle_at 265 __SC_COMP(__NR_open_by_handle_at, sys_open_by_handle_at, \ compat_sys_open_by_handle_at) @@ -690,23 +694,23 @@ __SC_COMP(__NR_process_vm_readv, sys_process_vm_readv, \ __SC_COMP(__NR_process_vm_writev, sys_process_vm_writev, \ compat_sys_process_vm_writev) #define __NR_kcmp 272 -__SYSCALL(__NR_kcmp, sys_kcmp) +__SC_WRAP(__NR_kcmp, sys_kcmp) #define __NR_finit_module 273 -__SYSCALL(__NR_finit_module, sys_finit_module) +__SC_WRAP(__NR_finit_module, sys_finit_module) #define __NR_sched_setattr 274 -__SYSCALL(__NR_sched_setattr, sys_sched_setattr) +__SC_WRAP(__NR_sched_setattr, sys_sched_setattr) #define __NR_sched_getattr 275 -__SYSCALL(__NR_sched_getattr, sys_sched_getattr) +__SC_WRAP(__NR_sched_getattr, sys_sched_getattr) #define __NR_renameat2 276 -__SYSCALL(__NR_renameat2, sys_renameat2) +__SC_WRAP(__NR_renameat2, sys_renameat2) #define __NR_seccomp 277 -__SYSCALL(__NR_seccomp, sys_seccomp) +__SC_WRAP(__NR_seccomp, sys_seccomp) #define __NR_getrandom 278 -__SYSCALL(__NR_getrandom, sys_getrandom) +__SC_WRAP(__NR_getrandom, sys_getrandom) #define __NR_memfd_create 279 -__SYSCALL(__NR_memfd_create, sys_memfd_create) +__SC_WRAP(__NR_memfd_create, sys_memfd_create) #define __NR_bpf 280 -__SYSCALL(__NR_bpf, sys_bpf) +__SC_WRAP(__NR_bpf, sys_bpf) #define __NR_execveat 281 __SC_COMP(__NR_execveat, sys_execveat, compat_sys_execveat) #define __NR_userfaultfd 282 @@ -714,7 +718,7 @@ __SYSCALL(__NR_userfaultfd, sys_userfaultfd) #define __NR_membarrier 283 __SYSCALL(__NR_membarrier, sys_membarrier) #define __NR_mlock2 284 -__SYSCALL(__NR_mlock2, sys_mlock2) +__SC_WRAP(__NR_mlock2, sys_mlock2) #undef __NR_syscalls #define __NR_syscalls 285 @@ -731,29 +735,29 @@ __SYSCALL(__NR_mlock2, sys_mlock2) #define __NR_open 1024 __SYSCALL(__NR_open, sys_open) #define __NR_link 1025 -__SYSCALL(__NR_link, sys_link) +__SC_WRAP(__NR_link, sys_link) #define __NR_unlink 1026 -__SYSCALL(__NR_unlink, sys_unlink) +__SC_WRAP(__NR_unlink, sys_unlink) #define __NR_mknod 1027 -__SYSCALL(__NR_mknod, sys_mknod) +__SC_WRAP(__NR_mknod, sys_mknod) #define __NR_chmod 1028 -__SYSCALL(__NR_chmod, sys_chmod) +__SC_WRAP(__NR_chmod, sys_chmod) #define __NR_chown 1029 -__SYSCALL(__NR_chown, sys_chown) +__SC_WRAP(__NR_chown, sys_chown) #define __NR_mkdir 1030 -__SYSCALL(__NR_mkdir, sys_mkdir) +__SC_WRAP(__NR_mkdir, sys_mkdir) #define __NR_rmdir 1031 -__SYSCALL(__NR_rmdir, sys_rmdir) +__SC_WRAP(__NR_rmdir, sys_rmdir) #define __NR_lchown 1032 -__SYSCALL(__NR_lchown, sys_lchown) +__SC_WRAP(__NR_lchown, sys_lchown) #define __NR_access 1033 -__SYSCALL(__NR_access, sys_access) +__SC_WRAP(__NR_access, sys_access) #define __NR_rename 1034 -__SYSCALL(__NR_rename, sys_rename) +__SC_WRAP(__NR_rename, sys_rename) #define __NR_readlink 1035 -__SYSCALL(__NR_readlink, sys_readlink) +__SC_WRAP(__NR_readlink, sys_readlink) #define __NR_symlink 1036 -__SYSCALL(__NR_symlink, sys_symlink) +__SC_WRAP(__NR_symlink, sys_symlink) #define __NR_utimes 1037 __SYSCALL(__NR_utimes, sys_utimes) #define __NR3264_stat 1038 @@ -767,7 +771,7 @@ __SC_3264(__NR3264_lstat, sys_lstat64, sys_newlstat) #ifdef __ARCH_WANT_SYSCALL_NO_FLAGS #define __NR_pipe 1040 -__SYSCALL(__NR_pipe, sys_pipe) +__SC_WRAP(__NR_pipe, sys_pipe) #define __NR_dup2 1041 __SYSCALL(__NR_dup2, sys_dup2) #define __NR_epoll_create 1042 @@ -837,7 +841,7 @@ __SYSCALL(__NR_time, sys_time) __SYSCALL(__NR_utime, sys_utime) #define __NR_creat 1064 -__SYSCALL(__NR_creat, sys_creat) +__SC_WRAP(__NR_creat, sys_creat) #define __NR_getdents 1065 #define __ARCH_WANT_SYS_GETDENTS __SYSCALL(__NR_getdents, sys_getdents) @@ -847,9 +851,9 @@ __SYSCALL(__NR_futimesat, sys_futimesat) #define __ARCH_WANT_SYS_SELECT __SYSCALL(__NR_select, sys_select) #define __NR_poll 1068 -__SYSCALL(__NR_poll, sys_poll) +__SC_WRAP(__NR_poll, sys_poll) #define __NR_epoll_wait 1069 -__SYSCALL(__NR_epoll_wait, sys_epoll_wait) +__SC_WRAP(__NR_epoll_wait, sys_epoll_wait) #define __NR_ustat 1070 __SYSCALL(__NR_ustat, sys_ustat) #define __NR_vfork 1071 @@ -861,12 +865,12 @@ __SYSCALL(__NR_recv, sys_recv) #define __NR_send 1074 __SYSCALL(__NR_send, sys_send) #define __NR_bdflush 1075 -__SYSCALL(__NR_bdflush, sys_bdflush) +__SC_WRAP(__NR_bdflush, sys_bdflush) #define __NR_umount 1076 -__SYSCALL(__NR_umount, sys_oldumount) +__SC_WRAP(__NR_umount, sys_oldumount) #define __ARCH_WANT_SYS_OLDUMOUNT #define __NR_uselib 1077 -__SYSCALL(__NR_uselib, sys_uselib) +__SC_WRAP(__NR_uselib, sys_uselib) #define __NR__sysctl 1078 __SYSCALL(__NR__sysctl, sys_sysctl) diff --git a/kernel/Makefile b/kernel/Makefile index 53abf00..4c0dc0e 100644 --- a/kernel/Makefile +++ b/kernel/Makefile @@ -82,6 +82,7 @@ obj-$(CONFIG_TRACEPOINTS) += tracepoint.o obj-$(CONFIG_LATENCYTOP) += latencytop.o obj-$(CONFIG_BINFMT_ELF) += elfcore.o obj-$(CONFIG_COMPAT_BINFMT_ELF) += elfcore.o +obj-$(CONFIG_COMPAT_WRAPPER) += compat_wrapper.o obj-$(CONFIG_BINFMT_ELF_FDPIC) += elfcore.o obj-$(CONFIG_FUNCTION_TRACER) += trace/ obj-$(CONFIG_TRACING) += trace/ diff --git a/kernel/compat_wrapper.c b/kernel/compat_wrapper.c new file mode 100644 index 0000000..4a99811 --- /dev/null +++ b/kernel/compat_wrapper.c @@ -0,0 +1,167 @@ +/* + * Compat system call wrappers. + * + * Copyright IBM Corp. 2014 + */ + +#include +#include +#include + +COMPAT_SYSCALL_WRAP2(creat, const char __user *, pathname, umode_t, mode); +COMPAT_SYSCALL_WRAP2(link, const char __user *, oldname, const char __user *, newname); +COMPAT_SYSCALL_WRAP1(unlink, const char __user *, pathname); +COMPAT_SYSCALL_WRAP1(chdir, const char __user *, filename); +COMPAT_SYSCALL_WRAP3(mknod, const char __user *, filename, umode_t, mode, unsigned, dev); +COMPAT_SYSCALL_WRAP2(chmod, const char __user *, filename, umode_t, mode); + +#ifdef __ARCH_WANT_SYS_OLDUMOUNT +COMPAT_SYSCALL_WRAP1(oldumount, char __user *, name); +#endif + +COMPAT_SYSCALL_WRAP2(access, const char __user *, filename, int, mode); +COMPAT_SYSCALL_WRAP2(rename, const char __user *, oldname, const char __user *, newname); +COMPAT_SYSCALL_WRAP2(mkdir, const char __user *, pathname, umode_t, mode); +COMPAT_SYSCALL_WRAP1(rmdir, const char __user *, pathname); +COMPAT_SYSCALL_WRAP1(pipe, int __user *, fildes); +COMPAT_SYSCALL_WRAP1(brk, unsigned long, brk); + +#ifdef __ARCH_WANT_SYS_SIGNAL +COMPAT_SYSCALL_WRAP2(signal, int, sig, __sighandler_t, handler); +#endif + +COMPAT_SYSCALL_WRAP1(acct, const char __user *, name); +COMPAT_SYSCALL_WRAP2(umount, char __user *, name, int, flags); +COMPAT_SYSCALL_WRAP1(chroot, const char __user *, filename); +COMPAT_SYSCALL_WRAP3(sigsuspend, int, unused1, int, unused2, old_sigset_t, mask); +COMPAT_SYSCALL_WRAP2(sethostname, char __user *, name, int, len); +COMPAT_SYSCALL_WRAP2(symlink, const char __user *, old, const char __user *, new); +COMPAT_SYSCALL_WRAP3(readlink, const char __user *, path, char __user *, buf, int, bufsiz); +COMPAT_SYSCALL_WRAP1(uselib, const char __user *, library); +COMPAT_SYSCALL_WRAP2(swapon, const char __user *, specialfile, int, swap_flags); +COMPAT_SYSCALL_WRAP4(reboot, int, magic1, int, magic2, unsigned int, cmd, void __user *, arg); +COMPAT_SYSCALL_WRAP2(munmap, unsigned long, addr, size_t, len); +COMPAT_SYSCALL_WRAP3(syslog, int, type, char __user *, buf, int, len); +COMPAT_SYSCALL_WRAP1(swapoff, const char __user *, specialfile); +COMPAT_SYSCALL_WRAP2(setdomainname, char __user *, name, int, len); +COMPAT_SYSCALL_WRAP1(newuname, struct new_utsname __user *, name); +COMPAT_SYSCALL_WRAP3(mprotect, unsigned long, start, size_t, len, unsigned long, prot); +COMPAT_SYSCALL_WRAP3(init_module, void __user *, umod, unsigned long, len, const char __user *, uargs); +COMPAT_SYSCALL_WRAP2(delete_module, const char __user *, name_user, unsigned int, flags); +COMPAT_SYSCALL_WRAP4(quotactl, unsigned int, cmd, const char __user *, special, qid_t, id, void __user *, addr); +COMPAT_SYSCALL_WRAP2(bdflush, int, func, long, data); +COMPAT_SYSCALL_WRAP3(sysfs, int, option, unsigned long, arg1, unsigned long, arg2); + +#ifdef __ARCH_WANT_SYS_LLSEEK +COMPAT_SYSCALL_WRAP5(llseek, unsigned int, fd, unsigned long, high, unsigned long, low, loff_t __user *, result, unsigned int, whence); +#endif + +COMPAT_SYSCALL_WRAP3(msync, unsigned long, start, size_t, len, int, flags); +COMPAT_SYSCALL_WRAP2(mlock, unsigned long, start, size_t, len); +COMPAT_SYSCALL_WRAP2(munlock, unsigned long, start, size_t, len); +COMPAT_SYSCALL_WRAP2(sched_setparam, pid_t, pid, struct sched_param __user *, param); +COMPAT_SYSCALL_WRAP2(sched_getparam, pid_t, pid, struct sched_param __user *, param); +COMPAT_SYSCALL_WRAP3(sched_setscheduler, pid_t, pid, int, policy, struct sched_param __user *, param); +COMPAT_SYSCALL_WRAP5(mremap, unsigned long, addr, unsigned long, old_len, unsigned long, new_len, unsigned long, flags, unsigned long, new_addr); +COMPAT_SYSCALL_WRAP3(poll, struct pollfd __user *, ufds, unsigned int, nfds, int, timeout); +COMPAT_SYSCALL_WRAP5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, unsigned long, arg4, unsigned long, arg5); +COMPAT_SYSCALL_WRAP2(getcwd, char __user *, buf, unsigned long, size); +COMPAT_SYSCALL_WRAP2(capget, cap_user_header_t, header, cap_user_data_t, dataptr); +COMPAT_SYSCALL_WRAP2(capset, cap_user_header_t, header, const cap_user_data_t, data); +COMPAT_SYSCALL_WRAP3(lchown, const char __user *, filename, uid_t, user, gid_t, group); +COMPAT_SYSCALL_WRAP2(getgroups, int, gidsetsize, gid_t __user *, grouplist); +COMPAT_SYSCALL_WRAP2(setgroups, int, gidsetsize, gid_t __user *, grouplist); +COMPAT_SYSCALL_WRAP3(getresuid, uid_t __user *, ruid, uid_t __user *, euid, uid_t __user *, suid); +COMPAT_SYSCALL_WRAP3(getresgid, gid_t __user *, rgid, gid_t __user *, egid, gid_t __user *, sgid); +COMPAT_SYSCALL_WRAP3(chown, const char __user *, filename, uid_t, user, gid_t, group); +COMPAT_SYSCALL_WRAP2(pivot_root, const char __user *, new_root, const char __user *, put_old); +COMPAT_SYSCALL_WRAP3(mincore, unsigned long, start, size_t, len, unsigned char __user *, vec); +COMPAT_SYSCALL_WRAP3(madvise, unsigned long, start, size_t, len, int, behavior); +COMPAT_SYSCALL_WRAP5(setxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags); +COMPAT_SYSCALL_WRAP5(lsetxattr, const char __user *, path, const char __user *, name, const void __user *, value, size_t, size, int, flags); +COMPAT_SYSCALL_WRAP5(fsetxattr, int, fd, const char __user *, name, const void __user *, value, size_t, size, int, flags); + +#ifndef __ARCH_WANT_COMPAT_SYS_GETDENTS64 +COMPAT_SYSCALL_WRAP3(getdents64, unsigned int, fd, struct linux_dirent64 __user *, dirent, unsigned int, count); +#endif + +COMPAT_SYSCALL_WRAP4(getxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size); +COMPAT_SYSCALL_WRAP4(lgetxattr, const char __user *, path, const char __user *, name, void __user *, value, size_t, size); +COMPAT_SYSCALL_WRAP4(fgetxattr, int, fd, const char __user *, name, void __user *, value, size_t, size); +COMPAT_SYSCALL_WRAP3(listxattr, const char __user *, path, char __user *, list, size_t, size); +COMPAT_SYSCALL_WRAP3(llistxattr, const char __user *, path, char __user *, list, size_t, size); +COMPAT_SYSCALL_WRAP3(flistxattr, int, fd, char __user *, list, size_t, size); +COMPAT_SYSCALL_WRAP2(removexattr, const char __user *, path, const char __user *, name); +COMPAT_SYSCALL_WRAP2(lremovexattr, const char __user *, path, const char __user *, name); +COMPAT_SYSCALL_WRAP2(fremovexattr, int, fd, const char __user *, name); +COMPAT_SYSCALL_WRAP1(set_tid_address, int __user *, tidptr); +COMPAT_SYSCALL_WRAP4(epoll_ctl, int, epfd, int, op, int, fd, struct epoll_event __user *, event); +COMPAT_SYSCALL_WRAP4(epoll_wait, int, epfd, struct epoll_event __user *, events, int, maxevents, int, timeout); +COMPAT_SYSCALL_WRAP1(io_destroy, aio_context_t, ctx); +COMPAT_SYSCALL_WRAP3(io_cancel, aio_context_t, ctx_id, struct iocb __user *, iocb, struct io_event __user *, result); +COMPAT_SYSCALL_WRAP1(mq_unlink, const char __user *, name); +COMPAT_SYSCALL_WRAP5(add_key, const char __user *, tp, const char __user *, dsc, const void __user *, pld, size_t, len, key_serial_t, id); +COMPAT_SYSCALL_WRAP4(request_key, const char __user *, tp, const char __user *, dsc, const char __user *, info, key_serial_t, id); +COMPAT_SYSCALL_WRAP5(remap_file_pages, unsigned long, start, unsigned long, size, unsigned long, prot, unsigned long, pgoff, unsigned long, flags); +COMPAT_SYSCALL_WRAP3(inotify_add_watch, int, fd, const char __user *, path, u32, mask); +COMPAT_SYSCALL_WRAP3(mkdirat, int, dfd, const char __user *, pathname, umode_t, mode); +COMPAT_SYSCALL_WRAP4(mknodat, int, dfd, const char __user *, filename, umode_t, mode, unsigned, dev); +COMPAT_SYSCALL_WRAP5(fchownat, int, dfd, const char __user *, filename, uid_t, user, gid_t, group, int, flag); +COMPAT_SYSCALL_WRAP3(unlinkat, int, dfd, const char __user *, pathname, int, flag); +COMPAT_SYSCALL_WRAP4(renameat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname); +COMPAT_SYSCALL_WRAP5(linkat, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, int, flags); +COMPAT_SYSCALL_WRAP3(symlinkat, const char __user *, oldname, int, newdfd, const char __user *, newname); +COMPAT_SYSCALL_WRAP4(readlinkat, int, dfd, const char __user *, path, char __user *, buf, int, bufsiz); +COMPAT_SYSCALL_WRAP3(fchmodat, int, dfd, const char __user *, filename, umode_t, mode); +COMPAT_SYSCALL_WRAP3(faccessat, int, dfd, const char __user *, filename, int, mode); +COMPAT_SYSCALL_WRAP1(unshare, unsigned long, unshare_flags); +COMPAT_SYSCALL_WRAP6(splice, int, fd_in, loff_t __user *, off_in, int, fd_out, loff_t __user *, off_out, size_t, len, unsigned int, flags); +COMPAT_SYSCALL_WRAP4(tee, int, fdin, int, fdout, size_t, len, unsigned int, flags); +COMPAT_SYSCALL_WRAP3(getcpu, unsigned __user *, cpu, unsigned __user *, node, struct getcpu_cache __user *, cache); +COMPAT_SYSCALL_WRAP2(pipe2, int __user *, fildes, int, flags); +COMPAT_SYSCALL_WRAP5(perf_event_open, struct perf_event_attr __user *, attr_uptr, pid_t, pid, int, cpu, int, group_fd, unsigned long, flags); + +#ifdef __ARCH_WANT_SYS_CLONE +#ifdef CONFIG_CLONE_BACKWARDS +COMPAT_SYSCALL_WRAP5(clone, unsigned long, clone_flags, unsigned long, newsp, + int __user *, parent_tidptr, + unsigned long, tls, + int __user *, child_tidptr); +#elif defined(CONFIG_CLONE_BACKWARDS2) +COMPAT_SYSCALL_WRAP5(clone, unsigned long, newsp, unsigned long, clone_flags, + int __user *, parent_tidptr, + int __user *, child_tidptr, + unsigned long, tls); +#elif defined(CONFIG_CLONE_BACKWARDS3) +COMPAT_SYSCALL_WRAP6(clone, unsigned long, clone_flags, unsigned long, newsp, + int, stack_size, + int __user *, parent_tidptr, + int __user *, child_tidptr, + unsigned long, tls); +#else +COMPAT_SYSCALL_WRAP5(clone, unsigned long, clone_flags, unsigned long, newsp, + int __user *, parent_tidptr, + int __user *, child_tidptr, + unsigned long, tls); +#endif +#endif + +COMPAT_SYSCALL_WRAP4(prlimit64, pid_t, pid, unsigned int, resource, const struct rlimit64 __user *, new_rlim, struct rlimit64 __user *, old_rlim); +COMPAT_SYSCALL_WRAP5(name_to_handle_at, int, dfd, const char __user *, name, struct file_handle __user *, handle, int __user *, mnt_id, int, flag); +COMPAT_SYSCALL_WRAP5(kcmp, pid_t, pid1, pid_t, pid2, int, type, unsigned long, idx1, unsigned long, idx2); +COMPAT_SYSCALL_WRAP3(finit_module, int, fd, const char __user *, uargs, int, flags); +COMPAT_SYSCALL_WRAP3(sched_setattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, flags); +COMPAT_SYSCALL_WRAP4(sched_getattr, pid_t, pid, struct sched_attr __user *, attr, unsigned int, size, unsigned int, flags); +COMPAT_SYSCALL_WRAP5(renameat2, int, olddfd, const char __user *, oldname, int, newdfd, const char __user *, newname, unsigned int, flags); +COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, const char __user *, uargs) +COMPAT_SYSCALL_WRAP3(getrandom, char __user *, buf, size_t, count, unsigned int, flags) +COMPAT_SYSCALL_WRAP2(memfd_create, const char __user *, uname, unsigned int, flags) +COMPAT_SYSCALL_WRAP3(bpf, int, cmd, union bpf_attr *, attr, unsigned int, size); +COMPAT_SYSCALL_WRAP4(socketpair, int, family, int, type, int, protocol, int __user *, usockvec); +COMPAT_SYSCALL_WRAP3(bind, int, fd, struct sockaddr __user *, umyaddr, int, addrlen); +COMPAT_SYSCALL_WRAP3(connect, int, fd, struct sockaddr __user *, uservaddr, int, addrlen); +COMPAT_SYSCALL_WRAP4(accept4, int, fd, struct sockaddr __user *, upeer_sockaddr, int __user *, upeer_addrlen, int, flags); +COMPAT_SYSCALL_WRAP3(getsockname, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len); +COMPAT_SYSCALL_WRAP3(getpeername, int, fd, struct sockaddr __user *, usockaddr, int __user *, usockaddr_len); +COMPAT_SYSCALL_WRAP6(sendto, int, fd, void __user *, buff, size_t, len, unsigned int, flags, struct sockaddr __user *, addr, int, addr_len); +COMPAT_SYSCALL_WRAP3(mlock2, unsigned long, start, size_t, len, int, flags);