From: Mickaël Salaün mic@linux.microsoft.com
Wire up the following system calls for all architectures: * landlock_create_ruleset(2) * landlock_add_rule(2) * landlock_enforce_ruleset_current(2)
Cc: Arnd Bergmann arnd@arndb.de Cc: James Morris jmorris@namei.org Cc: Jann Horn jannh@google.com Cc: Kees Cook keescook@chromium.org Cc: Serge E. Hallyn serge@hallyn.com Signed-off-by: Mickaël Salaün mic@linux.microsoft.com ---
Changes since v20: * Remove landlock_get_features(2). * Decrease syscall numbers to stick to process_madvise(2) in -next. * Rename landlock_enforce_ruleset(2) to landlock_enforce_ruleset_current(2).
Changes since v19: * Increase syscall numbers by 4 to leave space for new ones (in linux-next): watch_mount(2), watch_sb(2), fsinfo(2) and process_madvise(2) (requested by Arnd Bergmann). * Replace the previous multiplexor landlock(2) with 4 syscalls: landlock_get_features(2), landlock_create_ruleset(2), landlock_add_rule(2) and landlock_enforce_ruleset(2).
Changes since v18: * Increase the syscall number because of the new faccessat2(2).
Changes since v14: * Add all architectures.
Changes since v13: * New implementation. --- arch/alpha/kernel/syscalls/syscall.tbl | 3 +++ arch/arm/tools/syscall.tbl | 3 +++ arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 6 ++++++ arch/ia64/kernel/syscalls/syscall.tbl | 3 +++ arch/m68k/kernel/syscalls/syscall.tbl | 3 +++ arch/microblaze/kernel/syscalls/syscall.tbl | 3 +++ arch/mips/kernel/syscalls/syscall_n32.tbl | 3 +++ arch/mips/kernel/syscalls/syscall_n64.tbl | 3 +++ arch/mips/kernel/syscalls/syscall_o32.tbl | 3 +++ arch/parisc/kernel/syscalls/syscall.tbl | 3 +++ arch/powerpc/kernel/syscalls/syscall.tbl | 3 +++ arch/s390/kernel/syscalls/syscall.tbl | 3 +++ arch/sh/kernel/syscalls/syscall.tbl | 3 +++ arch/sparc/kernel/syscalls/syscall.tbl | 3 +++ arch/x86/entry/syscalls/syscall_32.tbl | 3 +++ arch/x86/entry/syscalls/syscall_64.tbl | 3 +++ arch/xtensa/kernel/syscalls/syscall.tbl | 3 +++ include/uapi/asm-generic/unistd.h | 8 +++++++- 19 files changed, 62 insertions(+), 2 deletions(-)
diff --git a/arch/alpha/kernel/syscalls/syscall.tbl b/arch/alpha/kernel/syscalls/syscall.tbl index ec8bed9e7b75..227027a0c6a8 100644 --- a/arch/alpha/kernel/syscalls/syscall.tbl +++ b/arch/alpha/kernel/syscalls/syscall.tbl @@ -479,3 +479,6 @@ 547 common openat2 sys_openat2 548 common pidfd_getfd sys_pidfd_getfd 549 common faccessat2 sys_faccessat2 +552 common landlock_create_ruleset sys_landlock_create_ruleset +553 common landlock_add_rule sys_landlock_add_rule +554 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index 171077cbf419..fa06bad9b5c2 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -453,3 +453,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index 3b859596840d..64ebdc1ec581 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -38,7 +38,7 @@ #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 440 +#define __NR_compat_syscalls 445 #endif
#define __ARCH_WANT_SYS_CLONE diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 734860ac7cf9..77b4445ef502 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -887,6 +887,12 @@ __SYSCALL(__NR_openat2, sys_openat2) __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd) #define __NR_faccessat2 439 __SYSCALL(__NR_faccessat2, sys_faccessat2) +#define __NR_landlock_create_ruleset 442 +__SYSCALL(__NR_landlock_create_ruleset, sys_landlock_create_ruleset) +#define __NR_landlock_add_rule 443 +__SYSCALL(__NR_landlock_add_rule, sys_landlock_add_rule) +#define __NR_landlock_enforce_ruleset_current 444 +__SYSCALL(__NR_landlock_enforce_ruleset_current, sys_landlock_enforce_ruleset_current)
/* * 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 f52a41f4c340..d6b2a1352c54 100644 --- a/arch/ia64/kernel/syscalls/syscall.tbl +++ b/arch/ia64/kernel/syscalls/syscall.tbl @@ -360,3 +360,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/m68k/kernel/syscalls/syscall.tbl b/arch/m68k/kernel/syscalls/syscall.tbl index 81fc799d8392..ee50b7897f2d 100644 --- a/arch/m68k/kernel/syscalls/syscall.tbl +++ b/arch/m68k/kernel/syscalls/syscall.tbl @@ -439,3 +439,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/microblaze/kernel/syscalls/syscall.tbl b/arch/microblaze/kernel/syscalls/syscall.tbl index b4e263916f41..6f53689c1d75 100644 --- a/arch/microblaze/kernel/syscalls/syscall.tbl +++ b/arch/microblaze/kernel/syscalls/syscall.tbl @@ -445,3 +445,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/mips/kernel/syscalls/syscall_n32.tbl b/arch/mips/kernel/syscalls/syscall_n32.tbl index f9df9edb67a4..4f27b6245dc6 100644 --- a/arch/mips/kernel/syscalls/syscall_n32.tbl +++ b/arch/mips/kernel/syscalls/syscall_n32.tbl @@ -378,3 +378,6 @@ 437 n32 openat2 sys_openat2 438 n32 pidfd_getfd sys_pidfd_getfd 439 n32 faccessat2 sys_faccessat2 +442 n32 landlock_create_ruleset sys_landlock_create_ruleset +443 n32 landlock_add_rule sys_landlock_add_rule +444 n32 landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/mips/kernel/syscalls/syscall_n64.tbl b/arch/mips/kernel/syscalls/syscall_n64.tbl index 557f9954a2b9..faa708b1793a 100644 --- a/arch/mips/kernel/syscalls/syscall_n64.tbl +++ b/arch/mips/kernel/syscalls/syscall_n64.tbl @@ -354,3 +354,6 @@ 437 n64 openat2 sys_openat2 438 n64 pidfd_getfd sys_pidfd_getfd 439 n64 faccessat2 sys_faccessat2 +442 n64 landlock_create_ruleset sys_landlock_create_ruleset +443 n64 landlock_add_rule sys_landlock_add_rule +444 n64 landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/mips/kernel/syscalls/syscall_o32.tbl b/arch/mips/kernel/syscalls/syscall_o32.tbl index 195b43cf27c8..690733712a6b 100644 --- a/arch/mips/kernel/syscalls/syscall_o32.tbl +++ b/arch/mips/kernel/syscalls/syscall_o32.tbl @@ -427,3 +427,6 @@ 437 o32 openat2 sys_openat2 438 o32 pidfd_getfd sys_pidfd_getfd 439 o32 faccessat2 sys_faccessat2 +442 o32 landlock_create_ruleset sys_landlock_create_ruleset +443 o32 landlock_add_rule sys_landlock_add_rule +444 o32 landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/parisc/kernel/syscalls/syscall.tbl b/arch/parisc/kernel/syscalls/syscall.tbl index def64d221cd4..c94b6ae18db3 100644 --- a/arch/parisc/kernel/syscalls/syscall.tbl +++ b/arch/parisc/kernel/syscalls/syscall.tbl @@ -437,3 +437,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index c2d737ff2e7b..d57acab56da2 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -529,3 +529,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/s390/kernel/syscalls/syscall.tbl b/arch/s390/kernel/syscalls/syscall.tbl index 10456bc936fb..5fc8c88ff347 100644 --- a/arch/s390/kernel/syscalls/syscall.tbl +++ b/arch/s390/kernel/syscalls/syscall.tbl @@ -442,3 +442,6 @@ 437 common openat2 sys_openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/sh/kernel/syscalls/syscall.tbl b/arch/sh/kernel/syscalls/syscall.tbl index ae0a00beea5f..5e7416148dca 100644 --- a/arch/sh/kernel/syscalls/syscall.tbl +++ b/arch/sh/kernel/syscalls/syscall.tbl @@ -442,3 +442,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/sparc/kernel/syscalls/syscall.tbl b/arch/sparc/kernel/syscalls/syscall.tbl index 4af114e84f20..b5c63d533374 100644 --- a/arch/sparc/kernel/syscalls/syscall.tbl +++ b/arch/sparc/kernel/syscalls/syscall.tbl @@ -485,3 +485,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 9d1102873666..51ff6d351647 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -444,3 +444,6 @@ 437 i386 openat2 sys_openat2 438 i386 pidfd_getfd sys_pidfd_getfd 439 i386 faccessat2 sys_faccessat2 +442 i386 landlock_create_ruleset sys_landlock_create_ruleset +443 i386 landlock_add_rule sys_landlock_add_rule +444 i386 landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index f30d6ae9a688..6726431ed37e 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -361,6 +361,9 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current
# # x32-specific system call numbers start at 512 to avoid cache impact diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl index 6276e3c2d3fc..b0f0a0397de2 100644 --- a/arch/xtensa/kernel/syscalls/syscall.tbl +++ b/arch/xtensa/kernel/syscalls/syscall.tbl @@ -410,3 +410,6 @@ 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd 439 common faccessat2 sys_faccessat2 +442 common landlock_create_ruleset sys_landlock_create_ruleset +443 common landlock_add_rule sys_landlock_add_rule +444 common landlock_enforce_ruleset_current sys_landlock_enforce_ruleset_current diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 995b36c2ea7d..1fa9412677af 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -859,9 +859,15 @@ __SYSCALL(__NR_openat2, sys_openat2) __SYSCALL(__NR_pidfd_getfd, sys_pidfd_getfd) #define __NR_faccessat2 439 __SYSCALL(__NR_faccessat2, sys_faccessat2) +#define __NR_landlock_create_ruleset 442 +__SYSCALL(__NR_landlock_create_ruleset, sys_landlock_create_ruleset) +#define __NR_landlock_add_rule 443 +__SYSCALL(__NR_landlock_add_rule, sys_landlock_add_rule) +#define __NR_landlock_enforce_ruleset_current 444 +__SYSCALL(__NR_landlock_enforce_ruleset_current, sys_landlock_enforce_ruleset_current)
#undef __NR_syscalls -#define __NR_syscalls 440 +#define __NR_syscalls 445
/* * 32 bit systems traditionally used different