diff options
28 files changed, 36 insertions, 123 deletions
diff --git a/arch/ia64/include/asm/compat.h b/arch/ia64/include/asm/compat.h index dfcf75b8426d..f90edc85b509 100644 --- a/arch/ia64/include/asm/compat.h +++ b/arch/ia64/include/asm/compat.h @@ -5,7 +5,8 @@ */ #include <linux/types.h> -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "i686\0\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h index f58aed354bfd..613f6912dfc1 100644 --- a/arch/mips/include/asm/compat.h +++ b/arch/mips/include/asm/compat.h @@ -8,7 +8,8 @@ #include <asm/page.h> #include <asm/ptrace.h> -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "mips\0\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index bde79ef602e6..a39d0597a375 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -249,22 +249,6 @@ SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz, } #endif -SYSCALL_DEFINE1(32_newuname, struct new_utsname __user *, name) -{ - int ret = 0; - - down_read(&uts_sem); - if (copy_to_user(name, utsname(), sizeof *name)) - ret = -EFAULT; - up_read(&uts_sem); - - if (current->personality == PER_LINUX32 && !ret) - if (copy_to_user(name->machine, "mips\0\0\0", 8)) - ret = -EFAULT; - - return ret; -} - SYSCALL_DEFINE1(32_personality, unsigned long, personality) { int ret; diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 66b5a48676dd..44337ba03717 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -181,7 +181,7 @@ EXPORT(sysn32_call_table) PTR sys_exit PTR compat_sys_wait4 PTR sys_kill /* 6060 */ - PTR sys_32_newuname + PTR sys_newuname PTR sys_semget PTR sys_semop PTR sys_n32_semctl diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 515f9eab2b28..813689ef2384 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -325,7 +325,7 @@ sys_call_table: PTR sys32_sigreturn PTR sys32_clone /* 4120 */ PTR sys_setdomainname - PTR sys_32_newuname + PTR sys_newuname PTR sys_ni_syscall /* sys_modify_ldt */ PTR compat_sys_adjtimex PTR sys_mprotect /* 4125 */ diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h index 7f32611a7a5e..02b77baa5da6 100644 --- a/arch/parisc/include/asm/compat.h +++ b/arch/parisc/include/asm/compat.h @@ -7,7 +7,8 @@ #include <linux/sched.h> #include <linux/thread_info.h> -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "parisc\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c index 9147391afb03..c9b932260f47 100644 --- a/arch/parisc/kernel/sys_parisc.c +++ b/arch/parisc/kernel/sys_parisc.c @@ -234,18 +234,3 @@ long parisc_personality(unsigned long personality) return err; } - -long parisc_newuname(struct new_utsname __user *name) -{ - int err = sys_newuname(name); - -#ifdef CONFIG_COMPAT - if (!err && personality(current->personality) == PER_LINUX32) { - if (__put_user(0, name->machine + 6) || - __put_user(0, name->machine + 7)) - err = -EFAULT; - } -#endif - - return err; -} diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S index de5f6dab48b7..3d52c978738f 100644 --- a/arch/parisc/kernel/syscall_table.S +++ b/arch/parisc/kernel/syscall_table.S @@ -127,7 +127,7 @@ ENTRY_SAME(socketpair) ENTRY_SAME(setpgid) ENTRY_SAME(send) - ENTRY_OURS(newuname) + ENTRY_SAME(newuname) ENTRY_SAME(umask) /* 60 */ ENTRY_SAME(chroot) ENTRY_COMP(ustat) diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h index 4774c2f92232..396d21a80058 100644 --- a/arch/powerpc/include/asm/compat.h +++ b/arch/powerpc/include/asm/compat.h @@ -7,7 +7,8 @@ #include <linux/types.h> #include <linux/sched.h> -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "ppc\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/powerpc/include/asm/syscalls.h b/arch/powerpc/include/asm/syscalls.h index 23bb74e7f946..4084e567d28e 100644 --- a/arch/powerpc/include/asm/syscalls.h +++ b/arch/powerpc/include/asm/syscalls.h @@ -7,7 +7,6 @@ #include <linux/types.h> #include <asm/signal.h> -struct new_utsname; struct pt_regs; struct rtas_args; struct sigaction; @@ -38,7 +37,6 @@ asmlinkage long sys_rt_sigaction(int sig, asmlinkage long ppc64_personality(unsigned long personality); asmlinkage int ppc_rtas(struct rtas_args __user *uargs); asmlinkage time_t sys64_time(time_t __user * tloc); -asmlinkage long ppc_newuname(struct new_utsname __user * name); asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize); diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index 07d2d19ab5e9..a5ee345b6a5c 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -125,7 +125,7 @@ SYSCALL_SPU(fsync) SYS32ONLY(sigreturn) PPC_SYS(clone) COMPAT_SYS_SPU(setdomainname) -PPC_SYS_SPU(newuname) +SYSCALL_SPU(newuname) SYSCALL(ni_syscall) COMPAT_SYS_SPU(adjtimex) SYSCALL_SPU(mprotect) diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index 5251221e7a5a..69d3c5d50a54 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -132,19 +132,6 @@ static inline int override_machine(char __user *mach) return 0; } -long ppc_newuname(struct new_utsname __user * name) -{ - int err = 0; - - down_read(&uts_sem); - if (copy_to_user(name, utsname(), sizeof(*name))) - err = -EFAULT; - up_read(&uts_sem); - if (!err) - err = override_machine(name->machine); - return err; -} - int sys_uname(struct old_utsname __user *name) { int err = 0; diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index 01a08020bc0e..104f2007f097 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -35,7 +35,8 @@ extern long psw32_user_bits; -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "s390\0\0\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/s390/kernel/compat_wrapper.S b/arch/s390/kernel/compat_wrapper.S index 30de2d0e52bb..672ce52341b4 100644 --- a/arch/s390/kernel/compat_wrapper.S +++ b/arch/s390/kernel/compat_wrapper.S @@ -547,7 +547,7 @@ sys32_setdomainname_wrapper: .globl sys32_newuname_wrapper sys32_newuname_wrapper: llgtr %r2,%r2 # struct new_utsname * - jg sys_s390_newuname # branch to system call + jg sys_newuname # branch to system call .globl compat_sys_adjtimex_wrapper compat_sys_adjtimex_wrapper: diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h index 15fd68b196c0..eb15c12ec158 100644 --- a/arch/s390/kernel/entry.h +++ b/arch/s390/kernel/entry.h @@ -24,7 +24,6 @@ int __cpuinit start_secondary(void *cpuvoid); void __init startup_init(void); void die(const char * str, struct pt_regs * regs, long err); -struct new_utsname; struct s390_mmap_arg_struct; struct fadvise64_64_args; struct old_sigaction; @@ -32,7 +31,6 @@ struct old_sigaction; long sys_mmap2(struct s390_mmap_arg_struct __user *arg); long sys_s390_ipc(uint call, int first, unsigned long second, unsigned long third, void __user *ptr); -long sys_s390_newuname(struct new_utsname __user *name); long sys_s390_personality(unsigned long personality); long sys_s390_fadvise64(int fd, u32 offset_high, u32 offset_low, size_t len, int advice); diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c index b8b78092ab7c..7b6b0f81a283 100644 --- a/arch/s390/kernel/sys_s390.c +++ b/arch/s390/kernel/sys_s390.c @@ -131,17 +131,6 @@ SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second, } #ifdef CONFIG_64BIT -SYSCALL_DEFINE1(s390_newuname, struct new_utsname __user *, name) -{ - int ret = sys_newuname(name); - - if (personality(current->personality) == PER_LINUX32 && !ret) { - ret = copy_to_user(name->machine, "s390\0\0\0\0", 8); - if (ret) ret = -EFAULT; - } - return ret; -} - SYSCALL_DEFINE1(s390_personality, unsigned long, personality) { int ret; diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 990ac8b321c8..201ce6bed34e 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -130,7 +130,7 @@ SYSCALL(sys_fsync,sys_fsync,sys32_fsync_wrapper) SYSCALL(sys_sigreturn,sys_sigreturn,sys32_sigreturn) SYSCALL(sys_clone,sys_clone,sys_clone_wrapper) /* 120 */ SYSCALL(sys_setdomainname,sys_setdomainname,sys32_setdomainname_wrapper) -SYSCALL(sys_newuname,sys_s390_newuname,sys32_newuname_wrapper) +SYSCALL(sys_newuname,sys_newuname,sys32_newuname_wrapper) NI_SYSCALL /* modify_ldt for i386 */ SYSCALL(sys_adjtimex,sys_adjtimex,compat_sys_adjtimex_wrapper) SYSCALL(sys_mprotect,sys_mprotect,sys32_mprotect_wrapper) /* 125 */ diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h index 0e706257918f..5016f76ea98a 100644 --- a/arch/sparc/include/asm/compat.h +++ b/arch/sparc/include/asm/compat.h @@ -5,7 +5,8 @@ */ #include <linux/types.h> -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "sparc\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c index 45410e939628..3d435c42e6db 100644 --- a/arch/sparc/kernel/sys_sparc_64.c +++ b/arch/sparc/kernel/sys_sparc_64.c @@ -510,17 +510,6 @@ out: return err; } -SYSCALL_DEFINE1(sparc64_newuname, struct new_utsname __user *, name) -{ - int ret = sys_newuname(name); - - if (current->personality == PER_LINUX32 && !ret) { - ret = (copy_to_user(name->machine, "sparc\0\0", 8) - ? -EFAULT : 0); - } - return ret; -} - SYSCALL_DEFINE1(sparc64_personality, unsigned long, personality) { int ret; diff --git a/arch/sparc/kernel/systbls.h b/arch/sparc/kernel/systbls.h index 2c331c37e748..118759cd7342 100644 --- a/arch/sparc/kernel/systbls.h +++ b/arch/sparc/kernel/systbls.h @@ -6,15 +6,12 @@ #include <asm/utrap.h> #include <asm/signal.h> -struct new_utsname; - extern asmlinkage unsigned long sys_getpagesize(void); extern asmlinkage long sparc_pipe(struct pt_regs *regs); extern asmlinkage long sys_sparc_ipc(unsigned int call, int first, unsigned long second, unsigned long third, void __user *ptr, long fifth); -extern asmlinkage long sparc64_newuname(struct new_utsname __user *name); extern asmlinkage long sparc64_personality(unsigned long personality); extern asmlinkage long sys64_munmap(unsigned long addr, size_t len); extern asmlinkage unsigned long sys64_mremap(unsigned long addr, diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 30ca2b1d3a17..9db058dd039e 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -55,7 +55,7 @@ sys_call_table32: /*170*/ .word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents .word sys_setsid, sys_fchdir, sys32_fgetxattr, sys_listxattr, sys_llistxattr /*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall - .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sys_sparc64_newuname + .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sys_newuname /*190*/ .word sys32_init_module, sys_sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask /*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir @@ -130,7 +130,7 @@ sys_call_table: /*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents .word sys_setsid, sys_fchdir, sys_fgetxattr, sys_listxattr, sys_llistxattr /*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall - .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_sparc64_newuname + .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sys_newuname /*190*/ .word sys_init_module, sys_sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask /*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall diff --git a/arch/um/sys-x86_64/syscall_table.c b/arch/um/sys-x86_64/syscall_table.c index dd21d69715e6..47d469e7e7ce 100644 --- a/arch/um/sys-x86_64/syscall_table.c +++ b/arch/um/sys-x86_64/syscall_table.c @@ -26,11 +26,6 @@ /* On UML we call it this way ("old" means it's not mmap2) */ #define sys_mmap old_mmap -/* - * On x86-64 sys_uname is actually sys_newuname plus a compatibility trick. - * See arch/x86_64/kernel/sys_x86_64.c - */ -#define sys_uname sys_uname64 #define stub_clone sys_clone #define stub_fork sys_fork diff --git a/arch/um/sys-x86_64/syscalls.c b/arch/um/sys-x86_64/syscalls.c index f1199fd34d38..f3d82bb6e15a 100644 --- a/arch/um/sys-x86_64/syscalls.c +++ b/arch/um/sys-x86_64/syscalls.c @@ -12,20 +12,6 @@ #include "asm/uaccess.h" #include "os.h" -asmlinkage long sys_uname64(struct new_utsname __user * name) -{ - int err; - - down_read(&uts_sem); - err = copy_to_user(name, utsname(), sizeof (*name)); - up_read(&uts_sem); - - if (personality(current->personality) == PER_LINUX32) - err |= copy_to_user(&name->machine, "i686", 5); - - return err ? -EFAULT : 0; -} - long arch_prctl(struct task_struct *task, int code, unsigned long __user *addr) { unsigned long *ptr = addr, tmp; diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h index 9a9c7bdc923d..306160e58b48 100644 --- a/arch/x86/include/asm/compat.h +++ b/arch/x86/include/asm/compat.h @@ -8,7 +8,8 @@ #include <linux/sched.h> #include <asm/user32.h> -#define COMPAT_USER_HZ 100 +#define COMPAT_USER_HZ 100 +#define COMPAT_UTS_MACHINE "i686\0\0" typedef u32 compat_size_t; typedef s32 compat_ssize_t; diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h index 50f6a569f0d1..47cd606c3537 100644 --- a/arch/x86/include/asm/syscalls.h +++ b/arch/x86/include/asm/syscalls.h @@ -68,11 +68,8 @@ int sys_vm86(unsigned long, unsigned long, struct pt_regs *); long sys_arch_prctl(int, unsigned long); /* kernel/sys_x86_64.c */ -struct new_utsname; - asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); -asmlinkage long sys_uname(struct new_utsname __user *); #endif /* CONFIG_X86_32 */ #endif /* _ASM_X86_SYSCALLS_H */ diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h index 4843f7ba754a..83e2d6dc5038 100644 --- a/arch/x86/include/asm/unistd_64.h +++ b/arch/x86/include/asm/unistd_64.h @@ -146,7 +146,7 @@ __SYSCALL(__NR_wait4, sys_wait4) #define __NR_kill 62 __SYSCALL(__NR_kill, sys_kill) #define __NR_uname 63 -__SYSCALL(__NR_uname, sys_uname) +__SYSCALL(__NR_uname, sys_newuname) #define __NR_semget 64 __SYSCALL(__NR_semget, sys_semget) diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index 8aa2057efd12..ff14a5044ce6 100644 --- a/arch/x86/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c @@ -209,15 +209,3 @@ bottomup: return addr; } - - -SYSCALL_DEFINE1(uname, struct new_utsname __user *, name) -{ - int err; - down_read(&uts_sem); - err = copy_to_user(name, utsname(), sizeof(*name)); - up_read(&uts_sem); - if (personality(current->personality) == PER_LINUX32) - err |= copy_to_user(&name->machine, "i686", 5); - return err ? -EFAULT : 0; -} diff --git a/kernel/sys.c b/kernel/sys.c index 9814e43fb23b..e483eb5530e4 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -33,6 +33,7 @@ #include <linux/task_io_accounting_ops.h> #include <linux/seccomp.h> #include <linux/cpu.h> +#include <linux/personality.h> #include <linux/ptrace.h> #include <linux/fs_struct.h> @@ -1114,6 +1115,15 @@ out: DECLARE_RWSEM(uts_sem); +#ifdef COMPAT_UTS_MACHINE +#define override_architecture(name) \ + (current->personality == PER_LINUX32 && \ + copy_to_user(name->machine, COMPAT_UTS_MACHINE, \ + sizeof(COMPAT_UTS_MACHINE))) +#else +#define override_architecture(name) 0 +#endif + SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name) { int errno = 0; @@ -1122,6 +1132,9 @@ SYSCALL_DEFINE1(newuname, struct new_utsname __user *, name) if (copy_to_user(name, utsname(), sizeof *name)) errno = -EFAULT; up_read(&uts_sem); + + if (!errno && override_architecture(name)) + errno = -EFAULT; return errno; } |