[src/trunk]: src/tests/net Clone libbpfjit tests to check kernel implementati...

[alnsn <alnsn%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/775ce69aa63c
branches:  trunk
changeset: 797201:775ce69aa63c
user:      alnsn <alnsn%NetBSD.org@localhost>
date:      Tue Jul 08 21:44:26 2014 +0000

description:
Clone libbpfjit tests to check kernel implementation of bpfjit.
Old content of t_bpfjit.c will be moved to t_mbuf.c shortly.
Change packet buffers to unsigned char[] type.

diffstat:

 tests/net/bpf/h_bpf.h       |    40 +-
 tests/net/bpf/t_mbuf.c      |    46 +-
 tests/net/bpfjit/t_bpfjit.c |  4281 ++++++++++++++++++++++++++++++++++++++----
 3 files changed, 3854 insertions(+), 513 deletions(-)

diffs (truncated from 4736 to 300 lines):

diff -r bf7d07a1e7ec -r 775ce69aa63c tests/net/bpf/h_bpf.h
--- a/tests/net/bpf/h_bpf.h     Tue Jul 08 21:13:01 2014 +0000
+++ b/tests/net/bpf/h_bpf.h     Tue Jul 08 21:44:26 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: h_bpf.h,v 1.1 2014/07/07 19:34:32 alnsn Exp $  */
+/*     $NetBSD: h_bpf.h,v 1.2 2014/07/08 21:44:26 alnsn Exp $  */
 
 /*-
  * Copyright (c) 2014 Alexander Nasonov.
@@ -57,18 +57,18 @@
  */
 static inline const uint8_t *
 init_mchain2(struct mbuf *mb1, struct mbuf *mb2,
-    char pkt[], size_t pktsize, size_t split)
+    unsigned char pkt[], size_t pktsize, size_t split)
 {
 
        (void)memset(mb1, 0, sizeof(*mb1));
-       mb1->m_data = pkt;
+       mb1->m_data = (char *)pkt;
        mb1->m_next = (split < pktsize) ? mb2 : NULL;
        mb1->m_len = (split < pktsize) ? split : pktsize;
 
        if (split < pktsize) {
                (void)memset(mb2, 0, sizeof(*mb2));
                mb2->m_next = NULL;
-               mb2->m_data = &pkt[split];
+               mb2->m_data = (char *)&pkt[split];
                mb2->m_len = pktsize - split;
        }
 
@@ -76,11 +76,39 @@
 }
 
 /*
+ * Compile and run a filter program.
+ */
+static inline unsigned int
+exec_prog(struct bpf_insn *insns, size_t insn_count,
+    unsigned char pkt[], size_t pktsize)
+{
+       bpfjit_func_t fn;
+       bpf_args_t args;
+       unsigned int res;
+
+       args.pkt = (const uint8_t *)pkt;
+       args.buflen = pktsize;
+       args.wirelen = pktsize;
+
+       rump_schedule();
+       fn = rumpns_bpfjit_generate_code(NULL, insns, insn_count);
+       rump_unschedule();
+
+       res = fn(NULL, &args);
+
+       rump_schedule();
+       rumpns_bpfjit_free_code(fn);
+       rump_unschedule();
+
+       return res;
+}
+
+/*
  * Interpret a filter program with mbuf chain passed to bpf_filter_ext().
  */
 static inline unsigned int
 interp_prog_mchain2(struct bpf_insn *insns,
-    char *pkt, size_t pktsize, size_t split)
+    unsigned char pkt[], size_t pktsize, size_t split)
 {
        uint32_t mem[BPF_MEMWORDS];
        struct mbuf mb1, mb2;
@@ -104,7 +132,7 @@
  */
 static inline unsigned int
 exec_prog_mchain2(struct bpf_insn *insns, size_t insn_count,
-    char *pkt, size_t pktsize, size_t split)
+    unsigned char pkt[], size_t pktsize, size_t split)
 {
        bpfjit_func_t fn;
        struct mbuf mb1, mb2;
diff -r bf7d07a1e7ec -r 775ce69aa63c tests/net/bpf/t_mbuf.c
--- a/tests/net/bpf/t_mbuf.c    Tue Jul 08 21:13:01 2014 +0000
+++ b/tests/net/bpf/t_mbuf.c    Tue Jul 08 21:44:26 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: t_mbuf.c,v 1.1 2014/07/07 19:40:28 alnsn Exp $ */
+/*     $NetBSD: t_mbuf.c,v 1.2 2014/07/08 21:44:26 alnsn Exp $ */
 
 /*-
  * Copyright (c) 2014 Alexander Nasonov.
@@ -27,16 +27,14 @@
  */
 
 #include <sys/cdefs.h>
-__RCSID("$NetBSD: t_mbuf.c,v 1.1 2014/07/07 19:40:28 alnsn Exp $");
+__RCSID("$NetBSD: t_mbuf.c,v 1.2 2014/07/08 21:44:26 alnsn Exp $");
 
 #include <sys/param.h>
 #include <sys/mbuf.h>
-#include <unistd.h>
 
 #include <net/bpf.h>
 
 #include <stdint.h>
-#include <stdio.h>
 #include <string.h>
 
 #include <rump/rump.h>
@@ -79,7 +77,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A      */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 120;
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -109,7 +107,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A        */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 0x0a0e; /* 10 14 */
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -131,7 +129,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A       */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 0x03050709;
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -172,7 +170,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A       */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 15;
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -201,7 +199,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A         */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 0x05080b0e;
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -235,7 +233,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A         */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 0x0a0e; /* 10 14 */
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -274,7 +272,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),         /* ret A      */
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
        const unsigned int res = 120;
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
@@ -292,7 +290,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -309,7 +307,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -326,7 +324,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -343,7 +341,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -361,7 +359,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -379,7 +377,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -396,7 +394,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -414,7 +412,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -432,7 +430,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -449,7 +447,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -467,7 +465,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -485,7 +483,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
@@ -503,7 +501,7 @@
                BPF_STMT(BPF_RET+BPF_A, 0),
        };
 
-       static char P[] = { 1, 2, 3, 4, 5 };
+       static unsigned char P[] = { 1, 2, 3, 4, 5 };
 
        if (!prog_validate(insns, sizeof(insns) / sizeof(insns[0])))
                return false;
diff -r bf7d07a1e7ec -r 775ce69aa63c tests/net/bpfjit/t_bpfjit.c
--- a/tests/net/bpfjit/t_bpfjit.c       Tue Jul 08 21:13:01 2014 +0000
+++ b/tests/net/bpfjit/t_bpfjit.c       Tue Jul 08 21:44:26 2014 +0000
@@ -1,7 +1,7 @@
-/*     $NetBSD: t_bpfjit.c,v 1.1 2014/06/30 21:30:51 alnsn Exp $       */
+/*     $NetBSD: t_bpfjit.c,v 1.2 2014/07/08 21:44:26 alnsn Exp $ */
 
 /*-
- * Copyright (c) 2014 Alexander Nasonov.
+ * Copyright (c) 2011-2012, 2014 Alexander Nasonov.
  * All rights reserved.
  *