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Message-Id: <1417494919-4577-3-git-send-email-oakad@yahoo.com> Date: Tue, 2 Dec 2014 15:35:19 +1100 From: Alex Dubov <alex.dubov@...il.com> To: linux-kernel@...r.kernel.org Cc: alex.dubov@...il.com, Alex Dubov <oakad@...oo.com> Subject: [PATCH 2/2] fs: Wire up sendfd() syscall (all architectures) Signed-off-by: Alex Dubov <oakad@...oo.com> --- arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm/kernel/calls.S | 1 + arch/arm64/include/asm/unistd32.h | 2 ++ arch/ia64/include/uapi/asm/unistd.h | 1 + arch/ia64/kernel/entry.S | 1 + arch/m68k/include/uapi/asm/unistd.h | 1 + arch/m68k/kernel/syscalltable.S | 1 + arch/microblaze/include/uapi/asm/unistd.h | 1 + arch/microblaze/kernel/syscall_table.S | 1 + arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------ arch/mips/kernel/scall32-o32.S | 1 + arch/mips/kernel/scall64-64.S | 1 + arch/mips/kernel/scall64-n32.S | 1 + arch/mips/kernel/scall64-o32.S | 1 + arch/parisc/include/uapi/asm/unistd.h | 3 ++- arch/powerpc/include/asm/systbl.h | 1 + arch/powerpc/include/uapi/asm/unistd.h | 1 + arch/s390/include/uapi/asm/unistd.h | 3 ++- arch/s390/kernel/compat_wrapper.c | 1 + arch/s390/kernel/syscalls.S | 1 + arch/sparc/include/uapi/asm/unistd.h | 3 ++- arch/sparc/kernel/systbls_32.S | 2 +- arch/sparc/kernel/systbls_64.S | 4 ++-- arch/x86/syscalls/syscall_32.tbl | 1 + arch/x86/syscalls/syscall_64.tbl | 1 + arch/xtensa/include/uapi/asm/unistd.h | 5 +++-- include/linux/syscalls.h | 1 + include/uapi/asm-generic/unistd.h | 4 +++- kernel/sys_ni.c | 3 +++ 29 files changed, 48 insertions(+), 15 deletions(-) diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h index 705bb76..6428823 100644 --- a/arch/arm/include/uapi/asm/unistd.h +++ b/arch/arm/include/uapi/asm/unistd.h @@ -413,6 +413,7 @@ #define __NR_getrandom (__NR_SYSCALL_BASE+384) #define __NR_memfd_create (__NR_SYSCALL_BASE+385) #define __NR_bpf (__NR_SYSCALL_BASE+386) +#define __NR_sendfd (__NR_SYSCALL_BASE+387) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index e51833f..30bdeb5 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -396,6 +396,7 @@ CALL(sys_getrandom) /* 385 */ CALL(sys_memfd_create) CALL(sys_bpf) + CALL(sys_sendfd) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 9dfdac4..7f19595 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -794,3 +794,5 @@ __SYSCALL(__NR_getrandom, sys_getrandom) __SYSCALL(__NR_memfd_create, sys_memfd_create) #define __NR_bpf 386 __SYSCALL(__NR_bpf, sys_bpf) +#define __NR_sendfd 387 +__SYSCALL(__NR_sendfd, sys_sendfd) diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h index 4c2240c..55be68c 100644 --- a/arch/ia64/include/uapi/asm/unistd.h +++ b/arch/ia64/include/uapi/asm/unistd.h @@ -331,5 +331,6 @@ #define __NR_getrandom 1339 #define __NR_memfd_create 1340 #define __NR_bpf 1341 +#define __NR_sendfd 1342 #endif /* _UAPI_ASM_IA64_UNISTD_H */ diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index f5e96df..97596a3 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1779,6 +1779,7 @@ sys_call_table: data8 sys_getrandom data8 sys_memfd_create // 1340 data8 sys_bpf + data8 sys_sendfd .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ diff --git a/arch/m68k/include/uapi/asm/unistd.h b/arch/m68k/include/uapi/asm/unistd.h index 2c1bec9..77e7098 100644 --- a/arch/m68k/include/uapi/asm/unistd.h +++ b/arch/m68k/include/uapi/asm/unistd.h @@ -360,5 +360,6 @@ #define __NR_getrandom 352 #define __NR_memfd_create 353 #define __NR_bpf 354 +#define __NR_sendfd 355 #endif /* _UAPI_ASM_M68K_UNISTD_H_ */ diff --git a/arch/m68k/kernel/syscalltable.S b/arch/m68k/kernel/syscalltable.S index 2ca219e..3ea20d4 100644 --- a/arch/m68k/kernel/syscalltable.S +++ b/arch/m68k/kernel/syscalltable.S @@ -375,4 +375,5 @@ ENTRY(sys_call_table) .long sys_getrandom .long sys_memfd_create .long sys_bpf + .long sys_sendfd diff --git a/arch/microblaze/include/uapi/asm/unistd.h b/arch/microblaze/include/uapi/asm/unistd.h index c712677..f69e30a 100644 --- a/arch/microblaze/include/uapi/asm/unistd.h +++ b/arch/microblaze/include/uapi/asm/unistd.h @@ -403,5 +403,6 @@ #define __NR_getrandom 385 #define __NR_memfd_create 386 #define __NR_bpf 387 +#define __NR_sendfd 388 #endif /* _UAPI_ASM_MICROBLAZE_UNISTD_H */ diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S index 0166e89..1550f45 100644 --- a/arch/microblaze/kernel/syscall_table.S +++ b/arch/microblaze/kernel/syscall_table.S @@ -388,3 +388,4 @@ ENTRY(sys_call_table) .long sys_getrandom /* 385 */ .long sys_memfd_create .long sys_bpf + .long sys_sendfd diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h index d001bb1..24109dc 100644 --- a/arch/mips/include/uapi/asm/unistd.h +++ b/arch/mips/include/uapi/asm/unistd.h @@ -376,16 +376,17 @@ #define __NR_getrandom (__NR_Linux + 353) #define __NR_memfd_create (__NR_Linux + 354) #define __NR_bpf (__NR_Linux + 355) +#define __NR_sendfd (__NR_Linux + 356) /* * Offset of the last Linux o32 flavoured syscall */ -#define __NR_Linux_syscalls 355 +#define __NR_Linux_syscalls 356 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */ #define __NR_O32_Linux 4000 -#define __NR_O32_Linux_syscalls 355 +#define __NR_O32_Linux_syscalls 356 #if _MIPS_SIM == _MIPS_SIM_ABI64 @@ -709,16 +710,17 @@ #define __NR_getrandom (__NR_Linux + 313) #define __NR_memfd_create (__NR_Linux + 314) #define __NR_bpf (__NR_Linux + 315) +#define __NR_sendfd (__NR_Linux + 316) /* * Offset of the last Linux 64-bit flavoured syscall */ -#define __NR_Linux_syscalls 315 +#define __NR_Linux_syscalls 316 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */ #define __NR_64_Linux 5000 -#define __NR_64_Linux_syscalls 315 +#define __NR_64_Linux_syscalls 316 #if _MIPS_SIM == _MIPS_SIM_NABI32 @@ -1046,15 +1048,16 @@ #define __NR_getrandom (__NR_Linux + 317) #define __NR_memfd_create (__NR_Linux + 318) #define __NR_bpf (__NR_Linux + 319) +#define __NR_sendfd (__NR_Linux + 320) /* * Offset of the last N32 flavoured syscall */ -#define __NR_Linux_syscalls 319 +#define __NR_Linux_syscalls 320 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */ #define __NR_N32_Linux 6000 -#define __NR_N32_Linux_syscalls 319 +#define __NR_N32_Linux_syscalls 320 #endif /* _UAPI_ASM_UNISTD_H */ diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S index 00cad10..94a7014 100644 --- a/arch/mips/kernel/scall32-o32.S +++ b/arch/mips/kernel/scall32-o32.S @@ -580,3 +580,4 @@ EXPORT(sys_call_table) PTR sys_getrandom PTR sys_memfd_create PTR sys_bpf /* 4355 */ + PTR sys_sendfd diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S index 5251565..cc2440d 100644 --- a/arch/mips/kernel/scall64-64.S +++ b/arch/mips/kernel/scall64-64.S @@ -435,4 +435,5 @@ EXPORT(sys_call_table) PTR sys_getrandom PTR sys_memfd_create PTR sys_bpf /* 5315 */ + PTR sys_sendfd .size sys_call_table,.-sys_call_table diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 77e7439..ff1de3a 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -428,4 +428,5 @@ EXPORT(sysn32_call_table) PTR sys_getrandom PTR sys_memfd_create PTR sys_bpf + PTR sys_sendfd .size sysn32_call_table,.-sysn32_call_table diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index 6f8db9f..87d3a33 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -565,4 +565,5 @@ EXPORT(sys32_call_table) PTR sys_getrandom PTR sys_memfd_create PTR sys_bpf /* 4355 */ + PTR sys_sendfd .size sys32_call_table,.-sys32_call_table diff --git a/arch/parisc/include/uapi/asm/unistd.h b/arch/parisc/include/uapi/asm/unistd.h index 5f5c037..f182787 100644 --- a/arch/parisc/include/uapi/asm/unistd.h +++ b/arch/parisc/include/uapi/asm/unistd.h @@ -834,8 +834,9 @@ #define __NR_getrandom (__NR_Linux + 339) #define __NR_memfd_create (__NR_Linux + 340) #define __NR_bpf (__NR_Linux + 341) +#define __NR_sendfd (__NR_Linux + 342) -#define __NR_Linux_syscalls (__NR_bpf + 1) +#define __NR_Linux_syscalls (__NR_sendfd + 1) #define __IGNORE_select /* newselect */ diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index ce9577d..4aa6c22 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -366,3 +366,4 @@ SYSCALL_SPU(seccomp) SYSCALL_SPU(getrandom) SYSCALL_SPU(memfd_create) SYSCALL_SPU(bpf) +SYSCALL_SPU(sendfd) diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h index f55351f..2d55338 100644 --- a/arch/powerpc/include/uapi/asm/unistd.h +++ b/arch/powerpc/include/uapi/asm/unistd.h @@ -384,5 +384,6 @@ #define __NR_getrandom 359 #define __NR_memfd_create 360 #define __NR_bpf 361 +#define __NR_sendfd 362 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */ diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h index 4197c89..7248c4a 100644 --- a/arch/s390/include/uapi/asm/unistd.h +++ b/arch/s390/include/uapi/asm/unistd.h @@ -287,7 +287,8 @@ #define __NR_getrandom 349 #define __NR_memfd_create 350 #define __NR_bpf 351 -#define NR_syscalls 352 +#define __NR_sendfd 352 +#define NR_syscalls 353 /* * There are some system calls that are not present on 64 bit, some diff --git a/arch/s390/kernel/compat_wrapper.c b/arch/s390/kernel/compat_wrapper.c index c4f7a3d..d931326 100644 --- a/arch/s390/kernel/compat_wrapper.c +++ b/arch/s390/kernel/compat_wrapper.c @@ -218,3 +218,4 @@ COMPAT_SYSCALL_WRAP3(seccomp, unsigned int, op, unsigned int, flags, const char 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(sendfd, pid_t, pid, int, sig, int, fd); diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S index 9f7087f..b1beaf1 100644 --- a/arch/s390/kernel/syscalls.S +++ b/arch/s390/kernel/syscalls.S @@ -360,3 +360,4 @@ SYSCALL(sys_seccomp,sys_seccomp,compat_sys_seccomp) SYSCALL(sys_getrandom,sys_getrandom,compat_sys_getrandom) SYSCALL(sys_memfd_create,sys_memfd_create,compat_sys_memfd_create) /* 350 */ SYSCALL(sys_bpf,sys_bpf,compat_sys_bpf) +SYSCALL(sys_sendfd,sys_sendfd,compat_sys_sendfd) diff --git a/arch/sparc/include/uapi/asm/unistd.h b/arch/sparc/include/uapi/asm/unistd.h index 46d8384..a43637a 100644 --- a/arch/sparc/include/uapi/asm/unistd.h +++ b/arch/sparc/include/uapi/asm/unistd.h @@ -415,8 +415,9 @@ #define __NR_getrandom 347 #define __NR_memfd_create 348 #define __NR_bpf 349 +#define __NR_sendfd 350 -#define NR_syscalls 350 +#define NR_syscalls 351 /* Bitmask values returned from kern_features system call. */ #define KERN_FEATURE_MIXED_MODE_STACK 0x00000001 diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S index ad0cdf4..1b3ff92 100644 --- a/arch/sparc/kernel/systbls_32.S +++ b/arch/sparc/kernel/systbls_32.S @@ -86,4 +86,4 @@ sys_call_table: /*330*/ .long sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime /*335*/ .long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev /*340*/ .long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr -/*345*/ .long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf +/*345*/ .long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf, sys_sendfd diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S index 580cde9..ebbafb1 100644 --- a/arch/sparc/kernel/systbls_64.S +++ b/arch/sparc/kernel/systbls_64.S @@ -87,7 +87,7 @@ sys_call_table32: /*330*/ .word compat_sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, compat_sys_open_by_handle_at, compat_sys_clock_adjtime .word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv, compat_sys_process_vm_writev /*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr - .word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf + .word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf, sys_sendfd #endif /* CONFIG_COMPAT */ @@ -166,4 +166,4 @@ sys_call_table: /*330*/ .word sys_fanotify_mark, sys_prlimit64, sys_name_to_handle_at, sys_open_by_handle_at, sys_clock_adjtime .word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv, sys_process_vm_writev /*340*/ .word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr, sys_sched_getattr - .word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf + .word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf, sys_sendfd diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl index 9fe1b5d..dfe91f7 100644 --- a/arch/x86/syscalls/syscall_32.tbl +++ b/arch/x86/syscalls/syscall_32.tbl @@ -364,3 +364,4 @@ 355 i386 getrandom sys_getrandom 356 i386 memfd_create sys_memfd_create 357 i386 bpf sys_bpf +358 i386 sendfd sys_sendfd diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl index 281150b..4d6b55d 100644 --- a/arch/x86/syscalls/syscall_64.tbl +++ b/arch/x86/syscalls/syscall_64.tbl @@ -328,6 +328,7 @@ 319 common memfd_create sys_memfd_create 320 common kexec_file_load sys_kexec_file_load 321 common bpf sys_bpf +322 common sendfd sys_sendfd # # x32-specific system call numbers start at 512 to avoid cache impact diff --git a/arch/xtensa/include/uapi/asm/unistd.h b/arch/xtensa/include/uapi/asm/unistd.h index db5bb72..3705d28 100644 --- a/arch/xtensa/include/uapi/asm/unistd.h +++ b/arch/xtensa/include/uapi/asm/unistd.h @@ -749,8 +749,9 @@ __SYSCALL(337, sys_seccomp, 3) __SYSCALL(338, sys_getrandom, 3) #define __NR_memfd_create 339 __SYSCALL(339, sys_memfd_create, 2) - -#define __NR_syscall_count 340 +#define __NR_sendfd 340 +__SYSCALL(340, sys_sendfd, 3) +#define __NR_syscall_count 341 /* * sysxtensa syscall handler diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index bda9b81..1871b72f 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -877,4 +877,5 @@ asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, asmlinkage long sys_getrandom(char __user *buf, size_t count, unsigned int flags); asmlinkage long sys_bpf(int cmd, union bpf_attr *attr, unsigned int size); +asmlinkage long sys_sendfd(pid_t pid, int sig, int fd); #endif diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 22749c1..270aa02 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -707,9 +707,11 @@ __SYSCALL(__NR_getrandom, sys_getrandom) __SYSCALL(__NR_memfd_create, sys_memfd_create) #define __NR_bpf 280 __SYSCALL(__NR_bpf, sys_bpf) +#define __NR_sendfd 281 +__SYSCALL(__NR_sendfd, sys_sendfd) #undef __NR_syscalls -#define __NR_syscalls 281 +#define __NR_syscalls 282 /* * All syscalls below here should go away really, diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 02aa418..353cddb 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -224,3 +224,6 @@ cond_syscall(sys_seccomp); /* access BPF programs and maps */ cond_syscall(sys_bpf); + +/* send file descriptor to another process */ +cond_syscall(sys_sendfd); -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at 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