From: Alexei Starovoitov <ast@plumgrid.com>
To: "David S. Miller" <davem@davemloft.net>
Cc: Ingo Molnar <mingo@kernel.org>,
Linus Torvalds <torvalds@linuxfoundation.org>,
Andy Lutomirski <luto@amacapital.net>,
Steven Rostedt <rostedt@goodmis.org>,
Daniel Borkmann <dborkman@redhat.com>,
Hannes Frederic Sowa <hannes@stressinduktion.org>,
Chema Gonzalez <chema@google.com>,
Eric Dumazet <edumazet@google.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Pablo Neira Ayuso <pablo@netfilter.org>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linuxfoundation.org>,
Kees Cook <keescook@chromium.org>,
linux-api@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v11 net-next 11/12] net: filter: move eBPF instruction macros
Date: Tue, 9 Sep 2014 22:10:07 -0700 [thread overview]
Message-ID: <1410325808-3657-12-git-send-email-ast@plumgrid.com> (raw)
In-Reply-To: <1410325808-3657-1-git-send-email-ast@plumgrid.com>
move instruction macros (like BPF_MOV64_REG or BPF_ALU32_IMM)
from linux/filter.h into uapi/linux/bpf.h
so that userspace programs can use them.
verifier testsuite (in later patches) will be using them.
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
---
include/linux/filter.h | 226 ----------------------------------------------
include/uapi/linux/bpf.h | 226 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 226 insertions(+), 226 deletions(-)
diff --git a/include/linux/filter.h b/include/linux/filter.h
index c105af7420a8..15a96857039a 100644
--- a/include/linux/filter.h
+++ b/include/linux/filter.h
@@ -37,232 +37,6 @@ struct bpf_prog_info;
/* BPF program can access up to 512 bytes of stack space. */
#define MAX_BPF_STACK 512
-/* Helper macros for filter block array initializers. */
-
-/* ALU ops on registers, bpf_add|sub|...: dst_reg += src_reg */
-
-#define BPF_ALU64_REG(OP, DST, SRC) \
- ((struct bpf_insn) { \
- .code = BPF_ALU64 | BPF_OP(OP) | BPF_X, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = 0 })
-
-#define BPF_ALU32_REG(OP, DST, SRC) \
- ((struct bpf_insn) { \
- .code = BPF_ALU | BPF_OP(OP) | BPF_X, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = 0 })
-
-/* ALU ops on immediates, bpf_add|sub|...: dst_reg += imm32 */
-
-#define BPF_ALU64_IMM(OP, DST, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ALU64 | BPF_OP(OP) | BPF_K, \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = 0, \
- .imm = IMM })
-
-#define BPF_ALU32_IMM(OP, DST, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ALU | BPF_OP(OP) | BPF_K, \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = 0, \
- .imm = IMM })
-
-/* Endianess conversion, cpu_to_{l,b}e(), {l,b}e_to_cpu() */
-
-#define BPF_ENDIAN(TYPE, DST, LEN) \
- ((struct bpf_insn) { \
- .code = BPF_ALU | BPF_END | BPF_SRC(TYPE), \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = 0, \
- .imm = LEN })
-
-/* Short form of mov, dst_reg = src_reg */
-
-#define BPF_MOV64_REG(DST, SRC) \
- ((struct bpf_insn) { \
- .code = BPF_ALU64 | BPF_MOV | BPF_X, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = 0 })
-
-#define BPF_MOV32_REG(DST, SRC) \
- ((struct bpf_insn) { \
- .code = BPF_ALU | BPF_MOV | BPF_X, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = 0 })
-
-/* Short form of mov, dst_reg = imm32 */
-
-#define BPF_MOV64_IMM(DST, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ALU64 | BPF_MOV | BPF_K, \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = 0, \
- .imm = IMM })
-
-#define BPF_MOV32_IMM(DST, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ALU | BPF_MOV | BPF_K, \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = 0, \
- .imm = IMM })
-
-/* BPF_LD_IMM64 macro encodes single 'load 64-bit immediate' insn */
-#define BPF_LD_IMM64(DST, IMM) \
- BPF_LD_IMM64_RAW(DST, 0, IMM)
-
-#define BPF_LD_IMM64_RAW(DST, SRC, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_LD | BPF_DW | BPF_IMM, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = (__u32) (IMM) }), \
- ((struct bpf_insn) { \
- .code = 0, /* zero is reserved opcode */ \
- .dst_reg = 0, \
- .src_reg = 0, \
- .off = 0, \
- .imm = ((__u64) (IMM)) >> 32 })
-
-#define BPF_PSEUDO_MAP_FD 1
-
-/* pseudo BPF_LD_IMM64 insn used to refer to process-local map_fd */
-#define BPF_LD_MAP_FD(DST, MAP_FD) \
- BPF_LD_IMM64_RAW(DST, BPF_PSEUDO_MAP_FD, MAP_FD)
-
-/* Short form of mov based on type, BPF_X: dst_reg = src_reg, BPF_K: dst_reg = imm32 */
-
-#define BPF_MOV64_RAW(TYPE, DST, SRC, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ALU64 | BPF_MOV | BPF_SRC(TYPE), \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = IMM })
-
-#define BPF_MOV32_RAW(TYPE, DST, SRC, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ALU | BPF_MOV | BPF_SRC(TYPE), \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = IMM })
-
-/* Direct packet access, R0 = *(uint *) (skb->data + imm32) */
-
-#define BPF_LD_ABS(SIZE, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_LD | BPF_SIZE(SIZE) | BPF_ABS, \
- .dst_reg = 0, \
- .src_reg = 0, \
- .off = 0, \
- .imm = IMM })
-
-/* Indirect packet access, R0 = *(uint *) (skb->data + src_reg + imm32) */
-
-#define BPF_LD_IND(SIZE, SRC, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_LD | BPF_SIZE(SIZE) | BPF_IND, \
- .dst_reg = 0, \
- .src_reg = SRC, \
- .off = 0, \
- .imm = IMM })
-
-/* Memory load, dst_reg = *(uint *) (src_reg + off16) */
-
-#define BPF_LDX_MEM(SIZE, DST, SRC, OFF) \
- ((struct bpf_insn) { \
- .code = BPF_LDX | BPF_SIZE(SIZE) | BPF_MEM, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = OFF, \
- .imm = 0 })
-
-/* Memory store, *(uint *) (dst_reg + off16) = src_reg */
-
-#define BPF_STX_MEM(SIZE, DST, SRC, OFF) \
- ((struct bpf_insn) { \
- .code = BPF_STX | BPF_SIZE(SIZE) | BPF_MEM, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = OFF, \
- .imm = 0 })
-
-/* Memory store, *(uint *) (dst_reg + off16) = imm32 */
-
-#define BPF_ST_MEM(SIZE, DST, OFF, IMM) \
- ((struct bpf_insn) { \
- .code = BPF_ST | BPF_SIZE(SIZE) | BPF_MEM, \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = OFF, \
- .imm = IMM })
-
-/* Conditional jumps against registers, if (dst_reg 'op' src_reg) goto pc + off16 */
-
-#define BPF_JMP_REG(OP, DST, SRC, OFF) \
- ((struct bpf_insn) { \
- .code = BPF_JMP | BPF_OP(OP) | BPF_X, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = OFF, \
- .imm = 0 })
-
-/* Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 */
-
-#define BPF_JMP_IMM(OP, DST, IMM, OFF) \
- ((struct bpf_insn) { \
- .code = BPF_JMP | BPF_OP(OP) | BPF_K, \
- .dst_reg = DST, \
- .src_reg = 0, \
- .off = OFF, \
- .imm = IMM })
-
-/* Function call */
-
-#define BPF_EMIT_CALL(FUNC) \
- ((struct bpf_insn) { \
- .code = BPF_JMP | BPF_CALL, \
- .dst_reg = 0, \
- .src_reg = 0, \
- .off = 0, \
- .imm = ((FUNC) - __bpf_call_base) })
-
-/* Raw code statement block */
-
-#define BPF_RAW_INSN(CODE, DST, SRC, OFF, IMM) \
- ((struct bpf_insn) { \
- .code = CODE, \
- .dst_reg = DST, \
- .src_reg = SRC, \
- .off = OFF, \
- .imm = IMM })
-
-/* Program exit */
-
-#define BPF_EXIT_INSN() \
- ((struct bpf_insn) { \
- .code = BPF_JMP | BPF_EXIT, \
- .dst_reg = 0, \
- .src_reg = 0, \
- .off = 0, \
- .imm = 0 })
-
#define bytes_to_bpf_size(bytes) \
({ \
int bpf_size = -EINVAL; \
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index 693a797e6b3f..e55bcba833e5 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -54,6 +54,232 @@ enum {
/* BPF has 10 general purpose 64-bit registers and stack frame. */
#define MAX_BPF_REG __MAX_BPF_REG
+/* Helper macros for filter block array initializers. */
+
+/* ALU ops on registers, bpf_add|sub|...: dst_reg += src_reg */
+
+#define BPF_ALU64_REG(OP, DST, SRC) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU64 | BPF_OP(OP) | BPF_X, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = 0 })
+
+#define BPF_ALU32_REG(OP, DST, SRC) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU | BPF_OP(OP) | BPF_X, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = 0 })
+
+/* ALU ops on immediates, bpf_add|sub|...: dst_reg += imm32 */
+
+#define BPF_ALU64_IMM(OP, DST, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU64 | BPF_OP(OP) | BPF_K, \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = IMM })
+
+#define BPF_ALU32_IMM(OP, DST, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU | BPF_OP(OP) | BPF_K, \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = IMM })
+
+/* Endianess conversion, cpu_to_{l,b}e(), {l,b}e_to_cpu() */
+
+#define BPF_ENDIAN(TYPE, DST, LEN) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU | BPF_END | BPF_SRC(TYPE), \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = LEN })
+
+/* Short form of mov, dst_reg = src_reg */
+
+#define BPF_MOV64_REG(DST, SRC) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU64 | BPF_MOV | BPF_X, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = 0 })
+
+#define BPF_MOV32_REG(DST, SRC) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU | BPF_MOV | BPF_X, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = 0 })
+
+/* Short form of mov, dst_reg = imm32 */
+
+#define BPF_MOV64_IMM(DST, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU64 | BPF_MOV | BPF_K, \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = IMM })
+
+#define BPF_MOV32_IMM(DST, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU | BPF_MOV | BPF_K, \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = IMM })
+
+/* BPF_LD_IMM64 macro encodes single 'load 64-bit immediate' insn */
+#define BPF_LD_IMM64(DST, IMM) \
+ BPF_LD_IMM64_RAW(DST, 0, IMM)
+
+#define BPF_LD_IMM64_RAW(DST, SRC, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_LD | BPF_DW | BPF_IMM, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = (__u32) (IMM) }), \
+ ((struct bpf_insn) { \
+ .code = 0, /* zero is reserved opcode */ \
+ .dst_reg = 0, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = ((__u64) (IMM)) >> 32 })
+
+#define BPF_PSEUDO_MAP_FD 1
+
+/* pseudo BPF_LD_IMM64 insn used to refer to process-local map_fd */
+#define BPF_LD_MAP_FD(DST, MAP_FD) \
+ BPF_LD_IMM64_RAW(DST, BPF_PSEUDO_MAP_FD, MAP_FD)
+
+/* Short form of mov based on type, BPF_X: dst_reg = src_reg, BPF_K: dst_reg = imm32 */
+
+#define BPF_MOV64_RAW(TYPE, DST, SRC, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU64 | BPF_MOV | BPF_SRC(TYPE), \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = IMM })
+
+#define BPF_MOV32_RAW(TYPE, DST, SRC, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ALU | BPF_MOV | BPF_SRC(TYPE), \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = IMM })
+
+/* Direct packet access, R0 = *(uint *) (skb->data + imm32) */
+
+#define BPF_LD_ABS(SIZE, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_LD | BPF_SIZE(SIZE) | BPF_ABS, \
+ .dst_reg = 0, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = IMM })
+
+/* Indirect packet access, R0 = *(uint *) (skb->data + src_reg + imm32) */
+
+#define BPF_LD_IND(SIZE, SRC, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_LD | BPF_SIZE(SIZE) | BPF_IND, \
+ .dst_reg = 0, \
+ .src_reg = SRC, \
+ .off = 0, \
+ .imm = IMM })
+
+/* Memory load, dst_reg = *(uint *) (src_reg + off16) */
+
+#define BPF_LDX_MEM(SIZE, DST, SRC, OFF) \
+ ((struct bpf_insn) { \
+ .code = BPF_LDX | BPF_SIZE(SIZE) | BPF_MEM, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = OFF, \
+ .imm = 0 })
+
+/* Memory store, *(uint *) (dst_reg + off16) = src_reg */
+
+#define BPF_STX_MEM(SIZE, DST, SRC, OFF) \
+ ((struct bpf_insn) { \
+ .code = BPF_STX | BPF_SIZE(SIZE) | BPF_MEM, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = OFF, \
+ .imm = 0 })
+
+/* Memory store, *(uint *) (dst_reg + off16) = imm32 */
+
+#define BPF_ST_MEM(SIZE, DST, OFF, IMM) \
+ ((struct bpf_insn) { \
+ .code = BPF_ST | BPF_SIZE(SIZE) | BPF_MEM, \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = OFF, \
+ .imm = IMM })
+
+/* Conditional jumps against registers, if (dst_reg 'op' src_reg) goto pc + off16 */
+
+#define BPF_JMP_REG(OP, DST, SRC, OFF) \
+ ((struct bpf_insn) { \
+ .code = BPF_JMP | BPF_OP(OP) | BPF_X, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = OFF, \
+ .imm = 0 })
+
+/* Conditional jumps against immediates, if (dst_reg 'op' imm32) goto pc + off16 */
+
+#define BPF_JMP_IMM(OP, DST, IMM, OFF) \
+ ((struct bpf_insn) { \
+ .code = BPF_JMP | BPF_OP(OP) | BPF_K, \
+ .dst_reg = DST, \
+ .src_reg = 0, \
+ .off = OFF, \
+ .imm = IMM })
+
+/* Function call */
+
+#define BPF_EMIT_CALL(FUNC) \
+ ((struct bpf_insn) { \
+ .code = BPF_JMP | BPF_CALL, \
+ .dst_reg = 0, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = ((FUNC) - __bpf_call_base) })
+
+/* Raw code statement block */
+
+#define BPF_RAW_INSN(CODE, DST, SRC, OFF, IMM) \
+ ((struct bpf_insn) { \
+ .code = CODE, \
+ .dst_reg = DST, \
+ .src_reg = SRC, \
+ .off = OFF, \
+ .imm = IMM })
+
+/* Program exit */
+
+#define BPF_EXIT_INSN() \
+ ((struct bpf_insn) { \
+ .code = BPF_JMP | BPF_EXIT, \
+ .dst_reg = 0, \
+ .src_reg = 0, \
+ .off = 0, \
+ .imm = 0 })
+
struct bpf_insn {
__u8 code; /* opcode */
__u8 dst_reg:4; /* dest register */
--
1.7.9.5
next prev parent reply other threads:[~2014-09-10 5:11 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-10 5:09 [PATCH v11 net-next 00/12] eBPF syscall, verifier, testsuite Alexei Starovoitov
2014-09-10 5:09 ` Alexei Starovoitov
2014-09-10 5:09 ` [PATCH v11 net-next 01/12] bpf: introduce BPF syscall and maps Alexei Starovoitov
2014-09-10 5:09 ` [PATCH v11 net-next 02/12] bpf: enable bpf syscall on x64 and i386 Alexei Starovoitov
2014-09-10 5:09 ` [PATCH v11 net-next 03/12] bpf: add lookup/update/delete/iterate methods to BPF maps Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 04/12] bpf: expand BPF syscall with program load/unload Alexei Starovoitov
2014-09-10 8:04 ` Daniel Borkmann
2014-09-10 8:04 ` Daniel Borkmann
2014-09-10 17:19 ` Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 05/12] bpf: handle pseudo BPF_CALL insn Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 06/12] bpf: verifier (add docs) Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 07/12] bpf: verifier (add ability to receive verification log) Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 08/12] bpf: handle pseudo BPF_LD_IMM64 insn Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 09/12] bpf: verifier (add branch/goto checks) Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 10/12] bpf: verifier (add verifier core) Alexei Starovoitov
2014-09-10 5:10 ` Alexei Starovoitov
2014-09-10 5:10 ` Alexei Starovoitov [this message]
2014-09-10 11:24 ` [PATCH v11 net-next 11/12] net: filter: move eBPF instruction macros Daniel Borkmann
2014-09-10 11:24 ` Daniel Borkmann
2014-09-10 18:16 ` Alexei Starovoitov
2014-09-10 18:16 ` Alexei Starovoitov
2014-09-11 6:29 ` Daniel Borkmann
2014-09-11 6:45 ` Alexei Starovoitov
2014-09-10 5:10 ` [PATCH v11 net-next 12/12] bpf: mini eBPF library, test stubs and verifier testsuite Alexei Starovoitov
2014-09-10 11:35 ` Daniel Borkmann
2014-09-10 11:35 ` Daniel Borkmann
2014-09-10 18:08 ` Alexei Starovoitov
2014-09-10 18:08 ` Alexei Starovoitov
2014-09-17 7:16 ` Daniel Borkmann
2014-09-17 7:16 ` Daniel Borkmann
2014-09-17 16:17 ` Alexei Starovoitov
2014-09-17 21:59 ` Daniel Borkmann
2014-09-17 21:59 ` Daniel Borkmann
2014-09-17 22:16 ` Alexei Starovoitov
2014-09-10 8:19 ` [PATCH v11 net-next 00/12] eBPF syscall, verifier, testsuite Daniel Borkmann
2014-09-10 8:19 ` Daniel Borkmann
2014-09-10 17:28 ` Alexei Starovoitov
2014-09-10 9:03 ` Daniel Borkmann
2014-09-10 17:32 ` Alexei Starovoitov
2014-09-10 17:32 ` Alexei Starovoitov
2014-09-11 19:47 ` Daniel Borkmann
2014-09-11 19:47 ` Daniel Borkmann
2014-09-11 20:33 ` Alexei Starovoitov
2014-09-11 20:33 ` Alexei Starovoitov
2014-09-11 21:54 ` Andy Lutomirski
2014-09-11 21:54 ` Andy Lutomirski
2014-09-11 22:29 ` Alexei Starovoitov
2014-09-11 22:29 ` Alexei Starovoitov
2014-09-12 1:17 ` Andy Lutomirski
2014-09-12 1:29 ` Alexei Starovoitov
2014-09-12 22:40 ` Alexei Starovoitov
2014-09-10 9:21 ` Daniel Borkmann
2014-09-10 17:48 ` Alexei Starovoitov
2014-09-10 18:22 ` Andy Lutomirski
2014-09-10 20:21 ` Alexei Starovoitov
2014-09-10 20:21 ` Alexei Starovoitov
2014-09-11 19:54 ` Daniel Borkmann
2014-09-11 20:35 ` Alexei Starovoitov
2014-09-11 20:35 ` Alexei Starovoitov
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