* [RFC PATCH 2/2] fs/xattr: wire up syscalls
@ 2022-08-30 15:28 Christian Göttsche
2022-08-30 15:56 ` Christian Brauner
2022-08-31 19:54 ` Richard Guy Briggs
0 siblings, 2 replies; 3+ messages in thread
From: Christian Göttsche @ 2022-08-30 15:28 UTC (permalink / raw)
To: selinux
Cc: Richard Henderson, Ivan Kokshaysky, Matt Turner, Russell King,
Catalin Marinas, Will Deacon, Geert Uytterhoeven, Michal Simek,
Thomas Bogendoerfer, James E.J. Bottomley, Helge Deller,
Michael Ellerman, Nicholas Piggin, Christophe Leroy,
Heiko Carstens, Vasily Gorbik, Alexander Gordeev,
Christian Borntraeger, Sven Schnelle, Yoshinori Sato,
Rich Felker, David S. Miller, Andy Lutomirski, Thomas Gleixner,
Ingo Molnar, Borislav Petkov, Dave Hansen, x86, H. Peter Anvin,
Chris Zankel, Max Filippov, Alexander Viro, Paul Moore,
Eric Paris, Arnd Bergmann, Andrew Morton, Suren Baghdasaryan,
André Almeida, Aneesh Kumar K.V, Guo Ren,
Peter Zijlstra (Intel),
Wang Haojun, linux-alpha, linux-kernel, linux-arm-kernel,
linux-ia64, linux-m68k, linux-mips, linux-parisc, linuxppc-dev,
linux-s390, linux-sh, sparclinux, linux-xtensa, linux-fsdevel,
linux-audit, linux-arch, linux-api
Enable the new added extended attribute related syscalls.
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
---
TODO:
- deprecate traditional syscalls (setxattr, ...)?
- resolve possible conflicts with proposed readfile syscall
---
arch/alpha/kernel/syscalls/syscall.tbl | 4 ++++
arch/arm/tools/syscall.tbl | 4 ++++
arch/arm64/include/asm/unistd.h | 2 +-
arch/arm64/include/asm/unistd32.h | 8 ++++++++
arch/ia64/kernel/syscalls/syscall.tbl | 4 ++++
arch/m68k/kernel/syscalls/syscall.tbl | 4 ++++
arch/microblaze/kernel/syscalls/syscall.tbl | 4 ++++
arch/mips/kernel/syscalls/syscall_n32.tbl | 4 ++++
arch/mips/kernel/syscalls/syscall_n64.tbl | 4 ++++
arch/mips/kernel/syscalls/syscall_o32.tbl | 4 ++++
arch/parisc/kernel/syscalls/syscall.tbl | 4 ++++
arch/powerpc/kernel/syscalls/syscall.tbl | 4 ++++
arch/s390/kernel/syscalls/syscall.tbl | 4 ++++
arch/sh/kernel/syscalls/syscall.tbl | 4 ++++
arch/sparc/kernel/syscalls/syscall.tbl | 4 ++++
arch/x86/entry/syscalls/syscall_32.tbl | 4 ++++
arch/x86/entry/syscalls/syscall_64.tbl | 4 ++++
arch/xtensa/kernel/syscalls/syscall.tbl | 4 ++++
include/asm-generic/audit_change_attr.h | 6 ++++++
include/linux/syscalls.h | 8 ++++++++
include/uapi/asm-generic/unistd.h | 12 +++++++++++-
21 files changed, 98 insertions(+), 2 deletions(-)
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
index 3515bc4f16a4..826a8a36da81 100644
--- a/arch/alpha/kernel/syscalls/syscall.tbl
+++ b/arch/alpha/kernel/syscalls/syscall.tbl
@@ -490,3 +490,7 @@
558 common process_mrelease sys_process_mrelease
559 common futex_waitv sys_futex_waitv
560 common set_mempolicy_home_node sys_ni_syscall
+561 common setxattrat sys_setxattrat
+562 common getxattrat sys_getxattrat
+563 common listxattrat sys_listxattrat
+564 common removexattrat sys_removexattrat
diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
index ac964612d8b0..f0e9d9d487f0 100644
--- a/arch/arm/tools/syscall.tbl
+++ b/arch/arm/tools/syscall.tbl
@@ -464,3 +464,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 037feba03a51..63a8a9c4abc1 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -39,7 +39,7 @@
#define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
#define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
-#define __NR_compat_syscalls 451
+#define __NR_compat_syscalls 455
#endif
#define __ARCH_WANT_SYS_CLONE
diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
index 604a2053d006..cd6ac63376d1 100644
--- a/arch/arm64/include/asm/unistd32.h
+++ b/arch/arm64/include/asm/unistd32.h
@@ -907,6 +907,14 @@ __SYSCALL(__NR_process_mrelease, sys_process_mrelease)
__SYSCALL(__NR_futex_waitv, sys_futex_waitv)
#define __NR_set_mempolicy_home_node 450
__SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
+#define __NR_setxattrat 451
+__SYSCALL(__NR_setxattrat, sys_setxattrat)
+#define __NR_getxattrat 452
+__SYSCALL(__NR_getxattrat, sys_getxattrat)
+#define __NR_listxattrat 453
+__SYSCALL(__NR_listxattrat, sys_listxattrat)
+#define __NR_removexattrat 454
+__SYSCALL(__NR_removexattrat, sys_removexattrat)
/*
* Please add new compat syscalls above this comment and update
diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
index 78b1d03e86e1..6e942a935a27 100644
--- a/arch/ia64/kernel/syscalls/syscall.tbl
+++ b/arch/ia64/kernel/syscalls/syscall.tbl
@@ -371,3 +371,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
index b1f3940bc298..0847efdee734 100644
--- a/arch/m68k/kernel/syscalls/syscall.tbl
+++ b/arch/m68k/kernel/syscalls/syscall.tbl
@@ -450,3 +450,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
index 820145e47350..7f619bbc718d 100644
--- a/arch/microblaze/kernel/syscalls/syscall.tbl
+++ b/arch/microblaze/kernel/syscalls/syscall.tbl
@@ -456,3 +456,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
index 253ff994ed2e..5e4206c0aede 100644
--- a/arch/mips/kernel/syscalls/syscall_n32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
@@ -389,3 +389,7 @@
448 n32 process_mrelease sys_process_mrelease
449 n32 futex_waitv sys_futex_waitv
450 n32 set_mempolicy_home_node sys_set_mempolicy_home_node
+451 n32 setxattrat sys_setxattrat
+452 n32 getxattrat sys_getxattrat
+453 n32 listxattrat sys_listxattrat
+454 n32 removexattrat sys_removexattrat
diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
index 3f1886ad9d80..df0f053e76cd 100644
--- a/arch/mips/kernel/syscalls/syscall_n64.tbl
+++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
@@ -365,3 +365,7 @@
448 n64 process_mrelease sys_process_mrelease
449 n64 futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 n64 setxattrat sys_setxattrat
+452 n64 getxattrat sys_getxattrat
+453 n64 listxattrat sys_listxattrat
+454 n64 removexattrat sys_removexattrat
diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
index 8f243e35a7b2..09ec31ad475f 100644
--- a/arch/mips/kernel/syscalls/syscall_o32.tbl
+++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
@@ -438,3 +438,7 @@
448 o32 process_mrelease sys_process_mrelease
449 o32 futex_waitv sys_futex_waitv
450 o32 set_mempolicy_home_node sys_set_mempolicy_home_node
+451 o32 setxattrat sys_setxattrat
+452 o32 getxattrat sys_getxattrat
+453 o32 listxattrat sys_listxattrat
+454 o32 removexattrat sys_removexattrat
diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
index 8a99c998da9b..fe3f4f41aee6 100644
--- a/arch/parisc/kernel/syscalls/syscall.tbl
+++ b/arch/parisc/kernel/syscalls/syscall.tbl
@@ -448,3 +448,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
index 2600b4237292..bee27f650397 100644
--- a/arch/powerpc/kernel/syscalls/syscall.tbl
+++ b/arch/powerpc/kernel/syscalls/syscall.tbl
@@ -530,3 +530,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 nospu set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
index 799147658dee..d1fbad4b7864 100644
--- a/arch/s390/kernel/syscalls/syscall.tbl
+++ b/arch/s390/kernel/syscalls/syscall.tbl
@@ -453,3 +453,7 @@
448 common process_mrelease sys_process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat sys_removexattrat
diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
index 2de85c977f54..d4daa8afe45c 100644
--- a/arch/sh/kernel/syscalls/syscall.tbl
+++ b/arch/sh/kernel/syscalls/syscall.tbl
@@ -453,3 +453,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
index 4398cc6fb68d..510d5175f80a 100644
--- a/arch/sparc/kernel/syscalls/syscall.tbl
+++ b/arch/sparc/kernel/syscalls/syscall.tbl
@@ -496,3 +496,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 320480a8db4f..8488cc157fe0 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -455,3 +455,7 @@
448 i386 process_mrelease sys_process_mrelease
449 i386 futex_waitv sys_futex_waitv
450 i386 set_mempolicy_home_node sys_set_mempolicy_home_node
+451 i386 setxattrat sys_setxattrat
+452 i386 getxattrat sys_getxattrat
+453 i386 listxattrat sys_listxattrat
+454 i386 removexattrat sys_removexattrat
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index c84d12608cd2..f45d723d5a30 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -372,6 +372,10 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
#
# Due to a historical design error, certain syscalls are numbered differently
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
index 52c94ab5c205..dbafe441a83f 100644
--- a/arch/xtensa/kernel/syscalls/syscall.tbl
+++ b/arch/xtensa/kernel/syscalls/syscall.tbl
@@ -421,3 +421,7 @@
448 common process_mrelease sys_process_mrelease
449 common futex_waitv sys_futex_waitv
450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+451 common setxattrat sys_setxattrat
+452 common getxattrat sys_getxattrat
+453 common listxattrat sys_listxattrat
+454 common removexattrat sys_removexattrat
diff --git a/include/asm-generic/audit_change_attr.h b/include/asm-generic/audit_change_attr.h
index 331670807cf0..cc840537885f 100644
--- a/include/asm-generic/audit_change_attr.h
+++ b/include/asm-generic/audit_change_attr.h
@@ -11,9 +11,15 @@ __NR_lchown,
__NR_fchown,
#endif
__NR_setxattr,
+#ifdef __NR_setxattrat
+__NR_setxattrat,
+#endif
__NR_lsetxattr,
__NR_fsetxattr,
__NR_removexattr,
+#ifdef __NR_removexattrat
+__NR_removexattrat,
+#endif
__NR_lremovexattr,
__NR_fremovexattr,
#ifdef __NR_fchownat
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a34b0f9a9972..090b9b5229a0 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -348,23 +348,31 @@ asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
/* fs/xattr.c */
asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
const void __user *value, size_t size, int flags);
+asmlinkage long sys_setxattrat(int dfd, const char __user *path, const char __user *name,
+ const void __user *value, size_t size, int flags);
asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
const void __user *value, size_t size, int flags);
asmlinkage long sys_fsetxattr(int fd, const char __user *name,
const void __user *value, size_t size, int flags);
asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
void __user *value, size_t size);
+asmlinkage long sys_getxattrat(int dfd, const char __user *path, const char __user *name,
+ void __user *value, size_t size, int flags);
asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
void __user *value, size_t size);
asmlinkage long sys_fgetxattr(int fd, const char __user *name,
void __user *value, size_t size);
asmlinkage long sys_listxattr(const char __user *path, char __user *list,
size_t size);
+asmlinkage long sys_listxattrat(int dfd, const char __user *path, char __user *list,
+ size_t size, int flags);
asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
size_t size);
asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
asmlinkage long sys_removexattr(const char __user *path,
const char __user *name);
+asmlinkage long sys_removexattrat(int dfd, const char __user *path,
+ const char __user *name, int flags);
asmlinkage long sys_lremovexattr(const char __user *path,
const char __user *name);
asmlinkage long sys_fremovexattr(int fd, const char __user *name);
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 45fa180cc56a..4fcc71612b7a 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -886,8 +886,18 @@ __SYSCALL(__NR_futex_waitv, sys_futex_waitv)
#define __NR_set_mempolicy_home_node 450
__SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
+/* fs/xattr.c */
+#define __NR_setxattrat 451
+__SYSCALL(__NR_setxattrat, sys_setxattrat)
+#define __NR_getxattrat 452
+__SYSCALL(__NR_getxattrat, sys_getxattrat)
+#define __NR_listxattrat 453
+__SYSCALL(__NR_listxattrat, sys_listxattrat)
+#define __NR_removexattrat 454
+__SYSCALL(__NR_removexattrat, sys_removexattrat)
+
#undef __NR_syscalls
-#define __NR_syscalls 451
+#define __NR_syscalls 455
/*
* 32 bit systems traditionally used different
--
2.37.2
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [RFC PATCH 2/2] fs/xattr: wire up syscalls
2022-08-30 15:28 [RFC PATCH 2/2] fs/xattr: wire up syscalls Christian Göttsche
@ 2022-08-30 15:56 ` Christian Brauner
2022-08-31 19:54 ` Richard Guy Briggs
1 sibling, 0 replies; 3+ messages in thread
From: Christian Brauner @ 2022-08-30 15:56 UTC (permalink / raw)
To: Christian Göttsche
Cc: selinux, Richard Henderson, Ivan Kokshaysky, Matt Turner,
Russell King, Catalin Marinas, Will Deacon, Geert Uytterhoeven,
Michal Simek, Thomas Bogendoerfer, James E.J. Bottomley,
Helge Deller, Michael Ellerman, Nicholas Piggin,
Christophe Leroy, Heiko Carstens, Vasily Gorbik,
Alexander Gordeev, Christian Borntraeger, Sven Schnelle,
Yoshinori Sato, Rich Felker, David S. Miller, Andy Lutomirski,
Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen, x86,
H. Peter Anvin, Chris Zankel, Max Filippov, Alexander Viro,
Paul Moore, Eric Paris, Arnd Bergmann, Andrew Morton,
Suren Baghdasaryan, André Almeida, Aneesh Kumar K.V,
Guo Ren, Peter Zijlstra (Intel),
Wang Haojun, linux-alpha, linux-kernel, linux-arm-kernel,
linux-ia64, linux-m68k, linux-mips, linux-parisc, linuxppc-dev,
linux-s390, linux-sh, sparclinux, linux-xtensa, linux-fsdevel,
linux-audit, linux-arch, linux-api
On Tue, Aug 30, 2022 at 05:28:38PM +0200, Christian Göttsche wrote:
> Enable the new added extended attribute related syscalls.
>
> Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
> ---
Fwiw, I think a while ago it was pointed out that for most syscall
additions you can just fold the hookup patch in. It probably also
wouldn't hurt to trim that Cc list significantly down to mostly the
lists...
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [RFC PATCH 2/2] fs/xattr: wire up syscalls
2022-08-30 15:28 [RFC PATCH 2/2] fs/xattr: wire up syscalls Christian Göttsche
2022-08-30 15:56 ` Christian Brauner
@ 2022-08-31 19:54 ` Richard Guy Briggs
1 sibling, 0 replies; 3+ messages in thread
From: Richard Guy Briggs @ 2022-08-31 19:54 UTC (permalink / raw)
To: Christian Göttsche
Cc: selinux, linux-alpha, linux-kernel, linux-arm-kernel, linux-ia64,
linux-m68k, linux-mips, linux-parisc, linuxppc-dev, linux-s390,
linux-sh, sparclinux, linux-xtensa, linux-fsdevel, linux-audit,
linux-arch, linux-api
On 2022-08-30 17:28, Christian Göttsche wrote:
> Enable the new added extended attribute related syscalls.
>
> Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
I can't speak to the completeness of the arch list, but I'm glad to see
the audit attr change bits in there.
> ---
> TODO:
> - deprecate traditional syscalls (setxattr, ...)?
> - resolve possible conflicts with proposed readfile syscall
> ---
> arch/alpha/kernel/syscalls/syscall.tbl | 4 ++++
> arch/arm/tools/syscall.tbl | 4 ++++
> arch/arm64/include/asm/unistd.h | 2 +-
> arch/arm64/include/asm/unistd32.h | 8 ++++++++
> arch/ia64/kernel/syscalls/syscall.tbl | 4 ++++
> arch/m68k/kernel/syscalls/syscall.tbl | 4 ++++
> arch/microblaze/kernel/syscalls/syscall.tbl | 4 ++++
> arch/mips/kernel/syscalls/syscall_n32.tbl | 4 ++++
> arch/mips/kernel/syscalls/syscall_n64.tbl | 4 ++++
> arch/mips/kernel/syscalls/syscall_o32.tbl | 4 ++++
> arch/parisc/kernel/syscalls/syscall.tbl | 4 ++++
> arch/powerpc/kernel/syscalls/syscall.tbl | 4 ++++
> arch/s390/kernel/syscalls/syscall.tbl | 4 ++++
> arch/sh/kernel/syscalls/syscall.tbl | 4 ++++
> arch/sparc/kernel/syscalls/syscall.tbl | 4 ++++
> arch/x86/entry/syscalls/syscall_32.tbl | 4 ++++
> arch/x86/entry/syscalls/syscall_64.tbl | 4 ++++
> arch/xtensa/kernel/syscalls/syscall.tbl | 4 ++++
> include/asm-generic/audit_change_attr.h | 6 ++++++
> include/linux/syscalls.h | 8 ++++++++
> include/uapi/asm-generic/unistd.h | 12 +++++++++++-
> 21 files changed, 98 insertions(+), 2 deletions(-)
>
> diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl
> index 3515bc4f16a4..826a8a36da81 100644
> --- a/arch/alpha/kernel/syscalls/syscall.tbl
> +++ b/arch/alpha/kernel/syscalls/syscall.tbl
> @@ -490,3 +490,7 @@
> 558 common process_mrelease sys_process_mrelease
> 559 common futex_waitv sys_futex_waitv
> 560 common set_mempolicy_home_node sys_ni_syscall
> +561 common setxattrat sys_setxattrat
> +562 common getxattrat sys_getxattrat
> +563 common listxattrat sys_listxattrat
> +564 common removexattrat sys_removexattrat
> diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl
> index ac964612d8b0..f0e9d9d487f0 100644
> --- a/arch/arm/tools/syscall.tbl
> +++ b/arch/arm/tools/syscall.tbl
> @@ -464,3 +464,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
> index 037feba03a51..63a8a9c4abc1 100644
> --- a/arch/arm64/include/asm/unistd.h
> +++ b/arch/arm64/include/asm/unistd.h
> @@ -39,7 +39,7 @@
> #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5)
> #define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800)
>
> -#define __NR_compat_syscalls 451
> +#define __NR_compat_syscalls 455
> #endif
>
> #define __ARCH_WANT_SYS_CLONE
> diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h
> index 604a2053d006..cd6ac63376d1 100644
> --- a/arch/arm64/include/asm/unistd32.h
> +++ b/arch/arm64/include/asm/unistd32.h
> @@ -907,6 +907,14 @@ __SYSCALL(__NR_process_mrelease, sys_process_mrelease)
> __SYSCALL(__NR_futex_waitv, sys_futex_waitv)
> #define __NR_set_mempolicy_home_node 450
> __SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
> +#define __NR_setxattrat 451
> +__SYSCALL(__NR_setxattrat, sys_setxattrat)
> +#define __NR_getxattrat 452
> +__SYSCALL(__NR_getxattrat, sys_getxattrat)
> +#define __NR_listxattrat 453
> +__SYSCALL(__NR_listxattrat, sys_listxattrat)
> +#define __NR_removexattrat 454
> +__SYSCALL(__NR_removexattrat, sys_removexattrat)
>
> /*
> * Please add new compat syscalls above this comment and update
> diff --git a/arch/ia64/kernel/syscalls/syscall.tbl b/arch/ia64/kernel/syscalls/syscall.tbl
> index 78b1d03e86e1..6e942a935a27 100644
> --- a/arch/ia64/kernel/syscalls/syscall.tbl
> +++ b/arch/ia64/kernel/syscalls/syscall.tbl
> @@ -371,3 +371,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl
> index b1f3940bc298..0847efdee734 100644
> --- a/arch/m68k/kernel/syscalls/syscall.tbl
> +++ b/arch/m68k/kernel/syscalls/syscall.tbl
> @@ -450,3 +450,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl
> index 820145e47350..7f619bbc718d 100644
> --- a/arch/microblaze/kernel/syscalls/syscall.tbl
> +++ b/arch/microblaze/kernel/syscalls/syscall.tbl
> @@ -456,3 +456,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl
> index 253ff994ed2e..5e4206c0aede 100644
> --- a/arch/mips/kernel/syscalls/syscall_n32.tbl
> +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl
> @@ -389,3 +389,7 @@
> 448 n32 process_mrelease sys_process_mrelease
> 449 n32 futex_waitv sys_futex_waitv
> 450 n32 set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 n32 setxattrat sys_setxattrat
> +452 n32 getxattrat sys_getxattrat
> +453 n32 listxattrat sys_listxattrat
> +454 n32 removexattrat sys_removexattrat
> diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl
> index 3f1886ad9d80..df0f053e76cd 100644
> --- a/arch/mips/kernel/syscalls/syscall_n64.tbl
> +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl
> @@ -365,3 +365,7 @@
> 448 n64 process_mrelease sys_process_mrelease
> 449 n64 futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 n64 setxattrat sys_setxattrat
> +452 n64 getxattrat sys_getxattrat
> +453 n64 listxattrat sys_listxattrat
> +454 n64 removexattrat sys_removexattrat
> diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl
> index 8f243e35a7b2..09ec31ad475f 100644
> --- a/arch/mips/kernel/syscalls/syscall_o32.tbl
> +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl
> @@ -438,3 +438,7 @@
> 448 o32 process_mrelease sys_process_mrelease
> 449 o32 futex_waitv sys_futex_waitv
> 450 o32 set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 o32 setxattrat sys_setxattrat
> +452 o32 getxattrat sys_getxattrat
> +453 o32 listxattrat sys_listxattrat
> +454 o32 removexattrat sys_removexattrat
> diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl
> index 8a99c998da9b..fe3f4f41aee6 100644
> --- a/arch/parisc/kernel/syscalls/syscall.tbl
> +++ b/arch/parisc/kernel/syscalls/syscall.tbl
> @@ -448,3 +448,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl
> index 2600b4237292..bee27f650397 100644
> --- a/arch/powerpc/kernel/syscalls/syscall.tbl
> +++ b/arch/powerpc/kernel/syscalls/syscall.tbl
> @@ -530,3 +530,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 nospu set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl
> index 799147658dee..d1fbad4b7864 100644
> --- a/arch/s390/kernel/syscalls/syscall.tbl
> +++ b/arch/s390/kernel/syscalls/syscall.tbl
> @@ -453,3 +453,7 @@
> 448 common process_mrelease sys_process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat sys_removexattrat
> diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl
> index 2de85c977f54..d4daa8afe45c 100644
> --- a/arch/sh/kernel/syscalls/syscall.tbl
> +++ b/arch/sh/kernel/syscalls/syscall.tbl
> @@ -453,3 +453,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl
> index 4398cc6fb68d..510d5175f80a 100644
> --- a/arch/sparc/kernel/syscalls/syscall.tbl
> +++ b/arch/sparc/kernel/syscalls/syscall.tbl
> @@ -496,3 +496,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
> index 320480a8db4f..8488cc157fe0 100644
> --- a/arch/x86/entry/syscalls/syscall_32.tbl
> +++ b/arch/x86/entry/syscalls/syscall_32.tbl
> @@ -455,3 +455,7 @@
> 448 i386 process_mrelease sys_process_mrelease
> 449 i386 futex_waitv sys_futex_waitv
> 450 i386 set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 i386 setxattrat sys_setxattrat
> +452 i386 getxattrat sys_getxattrat
> +453 i386 listxattrat sys_listxattrat
> +454 i386 removexattrat sys_removexattrat
> diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
> index c84d12608cd2..f45d723d5a30 100644
> --- a/arch/x86/entry/syscalls/syscall_64.tbl
> +++ b/arch/x86/entry/syscalls/syscall_64.tbl
> @@ -372,6 +372,10 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
>
> #
> # Due to a historical design error, certain syscalls are numbered differently
> diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl
> index 52c94ab5c205..dbafe441a83f 100644
> --- a/arch/xtensa/kernel/syscalls/syscall.tbl
> +++ b/arch/xtensa/kernel/syscalls/syscall.tbl
> @@ -421,3 +421,7 @@
> 448 common process_mrelease sys_process_mrelease
> 449 common futex_waitv sys_futex_waitv
> 450 common set_mempolicy_home_node sys_set_mempolicy_home_node
> +451 common setxattrat sys_setxattrat
> +452 common getxattrat sys_getxattrat
> +453 common listxattrat sys_listxattrat
> +454 common removexattrat sys_removexattrat
> diff --git a/include/asm-generic/audit_change_attr.h b/include/asm-generic/audit_change_attr.h
> index 331670807cf0..cc840537885f 100644
> --- a/include/asm-generic/audit_change_attr.h
> +++ b/include/asm-generic/audit_change_attr.h
> @@ -11,9 +11,15 @@ __NR_lchown,
> __NR_fchown,
> #endif
> __NR_setxattr,
> +#ifdef __NR_setxattrat
> +__NR_setxattrat,
> +#endif
> __NR_lsetxattr,
> __NR_fsetxattr,
> __NR_removexattr,
> +#ifdef __NR_removexattrat
> +__NR_removexattrat,
> +#endif
> __NR_lremovexattr,
> __NR_fremovexattr,
> #ifdef __NR_fchownat
> diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
> index a34b0f9a9972..090b9b5229a0 100644
> --- a/include/linux/syscalls.h
> +++ b/include/linux/syscalls.h
> @@ -348,23 +348,31 @@ asmlinkage long sys_io_uring_register(unsigned int fd, unsigned int op,
> /* fs/xattr.c */
> asmlinkage long sys_setxattr(const char __user *path, const char __user *name,
> const void __user *value, size_t size, int flags);
> +asmlinkage long sys_setxattrat(int dfd, const char __user *path, const char __user *name,
> + const void __user *value, size_t size, int flags);
> asmlinkage long sys_lsetxattr(const char __user *path, const char __user *name,
> const void __user *value, size_t size, int flags);
> asmlinkage long sys_fsetxattr(int fd, const char __user *name,
> const void __user *value, size_t size, int flags);
> asmlinkage long sys_getxattr(const char __user *path, const char __user *name,
> void __user *value, size_t size);
> +asmlinkage long sys_getxattrat(int dfd, const char __user *path, const char __user *name,
> + void __user *value, size_t size, int flags);
> asmlinkage long sys_lgetxattr(const char __user *path, const char __user *name,
> void __user *value, size_t size);
> asmlinkage long sys_fgetxattr(int fd, const char __user *name,
> void __user *value, size_t size);
> asmlinkage long sys_listxattr(const char __user *path, char __user *list,
> size_t size);
> +asmlinkage long sys_listxattrat(int dfd, const char __user *path, char __user *list,
> + size_t size, int flags);
> asmlinkage long sys_llistxattr(const char __user *path, char __user *list,
> size_t size);
> asmlinkage long sys_flistxattr(int fd, char __user *list, size_t size);
> asmlinkage long sys_removexattr(const char __user *path,
> const char __user *name);
> +asmlinkage long sys_removexattrat(int dfd, const char __user *path,
> + const char __user *name, int flags);
> asmlinkage long sys_lremovexattr(const char __user *path,
> const char __user *name);
> asmlinkage long sys_fremovexattr(int fd, const char __user *name);
> diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
> index 45fa180cc56a..4fcc71612b7a 100644
> --- a/include/uapi/asm-generic/unistd.h
> +++ b/include/uapi/asm-generic/unistd.h
> @@ -886,8 +886,18 @@ __SYSCALL(__NR_futex_waitv, sys_futex_waitv)
> #define __NR_set_mempolicy_home_node 450
> __SYSCALL(__NR_set_mempolicy_home_node, sys_set_mempolicy_home_node)
>
> +/* fs/xattr.c */
> +#define __NR_setxattrat 451
> +__SYSCALL(__NR_setxattrat, sys_setxattrat)
> +#define __NR_getxattrat 452
> +__SYSCALL(__NR_getxattrat, sys_getxattrat)
> +#define __NR_listxattrat 453
> +__SYSCALL(__NR_listxattrat, sys_listxattrat)
> +#define __NR_removexattrat 454
> +__SYSCALL(__NR_removexattrat, sys_removexattrat)
> +
> #undef __NR_syscalls
> -#define __NR_syscalls 451
> +#define __NR_syscalls 455
>
> /*
> * 32 bit systems traditionally used different
> --
> 2.37.2
>
- RGB
--
Richard Guy Briggs <rgb@redhat.com>
Sr. S/W Engineer, Kernel Security, Base Operating Systems
Remote, Ottawa, Red Hat Canada
IRC: rgb, SunRaycer
Voice: +1.647.777.2635, Internal: (81) 32635
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2022-08-30 15:28 [RFC PATCH 2/2] fs/xattr: wire up syscalls Christian Göttsche
2022-08-30 15:56 ` Christian Brauner
2022-08-31 19:54 ` Richard Guy Briggs
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