From: Eugene Syromyatnikov <evgsyr@gmail.com>
Date: Thu, 22 Feb 2018 01:44:04 +0000 (+0100)
Subject: bpf: print kern_version in the form of KERNEL_VERSION macro
X-Git-Tag: v4.22~106
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=ffcd3a837f734ddf3a55d40117edbb9a7c4e90e2;p=strace

bpf: print kern_version in the form of KERNEL_VERSION macro

* bpf.c (DEF_BPF_CMD_DECODER(BPF_PROG_LOAD)): Print
union bpf_attr.kern_version in the form of KERNEL_VERSION macro call.
* tests/bpf.c: Update expected output.
---

diff --git a/bpf.c b/bpf.c
index 59d1e749..0e07444a 100644
--- a/bpf.c
+++ b/bpf.c
@@ -213,7 +213,10 @@ DEF_BPF_CMD_DECODER(BPF_PROG_LOAD)
 	PRINT_FIELD_U(", ", attr, log_level);
 	PRINT_FIELD_U(", ", attr, log_size);
 	PRINT_FIELD_X(", ", attr, log_buf);
-	PRINT_FIELD_U(", ", attr, kern_version);
+	tprintf(", kern_version=KERNEL_VERSION(%u, %u, %u)",
+		attr.kern_version >> 16,
+		(attr.kern_version >> 8) & 0xFF,
+		attr.kern_version & 0xFF);
 	PRINT_FIELD_FLAGS(", ", attr, prog_flags, bpf_prog_flags, "BPF_F_???");
 	decode_attr_extra_data(tcp, data, size, sizeof(attr));
 	tprints("}");
diff --git a/tests/bpf.c b/tests/bpf.c
index 3f963fa3..a275fded 100644
--- a/tests/bpf.c
+++ b/tests/bpf.c
@@ -376,7 +376,7 @@ print_BPF_PROG_LOAD_first(const unsigned long addr)
 
 	printf("prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=0, insns=0"
 	       ", license=NULL, log_level=0, log_size=0, log_buf=0"
-	       ", kern_version=0, prog_flags=0");
+	       ", kern_version=KERNEL_VERSION(0, 0, 0), prog_flags=0");
 }
 
 static const struct bpf_insn insns[] = {
@@ -411,9 +411,10 @@ print_BPF_PROG_LOAD_attr(const unsigned long addr)
 {
 	printf("prog_type=BPF_PROG_TYPE_SOCKET_FILTER, insn_cnt=%u, insns=%p"
 	       ", license=\"GPL\", log_level=42, log_size=4096, log_buf=%p"
-	       ", kern_version=%u, prog_flags=BPF_F_STRICT_ALIGNMENT",
+	       ", kern_version=KERNEL_VERSION(51966, 240, 13)"
+	       ", prog_flags=BPF_F_STRICT_ALIGNMENT",
 	       (unsigned int) ARRAY_SIZE(insns), insns,
-	       log_buf, 0xcafef00d);
+	       log_buf);
 }
 
 # endif /* HAVE_UNION_BPF_ATTR_PROG_FLAGS */