From 749730ce42a2121e1c88350d69478bff3994b10a Mon Sep 17 00:00:00 2001 From: Alexei Starovoitov <ast@plumgrid.com> Date: Fri, 26 Sep 2014 00:16:58 -0700 Subject: [PATCH] bpf: enable bpf syscall on x64 and i386 done as separate commit to ease conflict resolution Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- arch/x86/syscalls/syscall_32.tbl | 1 + arch/x86/syscalls/syscall_64.tbl | 1 + include/linux/syscalls.h | 3 ++- include/uapi/asm-generic/unistd.h | 4 +++- kernel/sys_ni.c | 3 +++ 5 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/x86/syscalls/syscall_32.tbl b/arch/x86/syscalls/syscall_32.tbl index 028b78168d85a..9fe1b5d002f0a 100644 --- a/arch/x86/syscalls/syscall_32.tbl +++ b/arch/x86/syscalls/syscall_32.tbl @@ -363,3 +363,4 @@ 354 i386 seccomp sys_seccomp 355 i386 getrandom sys_getrandom 356 i386 memfd_create sys_memfd_create +357 i386 bpf sys_bpf diff --git a/arch/x86/syscalls/syscall_64.tbl b/arch/x86/syscalls/syscall_64.tbl index 35dd922727b9a..281150b539a2f 100644 --- a/arch/x86/syscalls/syscall_64.tbl +++ b/arch/x86/syscalls/syscall_64.tbl @@ -327,6 +327,7 @@ 318 common getrandom sys_getrandom 319 common memfd_create sys_memfd_create 320 common kexec_file_load sys_kexec_file_load +321 common bpf sys_bpf # # x32-specific system call numbers start at 512 to avoid cache impact diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h index 0f86d85a9ce44..bda9b81357ccf 100644 --- a/include/linux/syscalls.h +++ b/include/linux/syscalls.h @@ -65,6 +65,7 @@ struct old_linux_dirent; struct perf_event_attr; struct file_handle; struct sigaltstack; +union bpf_attr; #include <linux/types.h> #include <linux/aio_abi.h> @@ -875,5 +876,5 @@ asmlinkage long sys_seccomp(unsigned int op, unsigned int flags, const char __user *uargs); 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); #endif diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h index 11d11bc5c78f2..22749c1341177 100644 --- a/include/uapi/asm-generic/unistd.h +++ b/include/uapi/asm-generic/unistd.h @@ -705,9 +705,11 @@ __SYSCALL(__NR_seccomp, sys_seccomp) __SYSCALL(__NR_getrandom, sys_getrandom) #define __NR_memfd_create 279 __SYSCALL(__NR_memfd_create, sys_memfd_create) +#define __NR_bpf 280 +__SYSCALL(__NR_bpf, sys_bpf) #undef __NR_syscalls -#define __NR_syscalls 280 +#define __NR_syscalls 281 /* * All syscalls below here should go away really, diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index 391d4ddb6f4bb..b4b5083f5f5ed 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -218,3 +218,6 @@ cond_syscall(sys_kcmp); /* operate on Secure Computing state */ cond_syscall(sys_seccomp); + +/* access BPF programs and maps */ +cond_syscall(sys_bpf); -- GitLab