Implement the ip, tcp, and udp DTrace providers. The probe definitions use

dynamic translation so that their arguments match the definitions for
these providers in Solaris and illumos. Thus, existing scripts for these
providers should work unmodified on FreeBSD.

Tested by:	gnn, hiren
MFC after:	1 month

1 files changed, 127 insertions, 0 deletions

diff --git a/sys/netinet/in_kdtrace.c b/sys/netinet/in_kdtrace.c
new file mode 100644
index 0000000..85a5a4e
--- /dev/null
+++ b/sys/netinet/in_kdtrace.c
@@ -0,0 +1,127 @@
+/*-
+ * Copyright (c) 2013 Mark Johnston <markj@FreeBSD.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "opt_kdtrace.h"
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sdt.h>
+
+SDT_PROVIDER_DEFINE(ip);
+SDT_PROVIDER_DEFINE(tcp);
+SDT_PROVIDER_DEFINE(udp);
+
+SDT_PROBE_DEFINE6_XLATE(ip, , , receive, receive,
+    "void *", "pktinfo_t *",
+    "void *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct ifnet *", "ifinfo_t *",
+    "struct ip *", "ipv4info_t *",
+    "struct ip6_hdr *", "ipv6info_t *");
+
+SDT_PROBE_DEFINE6_XLATE(ip, , , send, send,
+    "void *", "pktinfo_t *",
+    "void *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct ifnet *", "ifinfo_t *",
+    "struct ip *", "ipv4info_t *",
+    "struct ip6_hdr *", "ipv6info_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , accept_established, accept-established,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , accept_refused, accept-refused,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , connect_established, connect-established,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , connect_refused, connect-refused,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , connect_request, connect-request,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , receive, receive,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(tcp, , , send, send,
+    "void *", "pktinfo_t *",
+    "struct tcpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct tcpcb *", "tcpsinfo_t *" ,
+    "struct tcphdr *", "tcpinfo_t *");
+
+SDT_PROBE_DEFINE6_XLATE(tcp, , , state_change, state-change,
+    "void *", "void *",
+    "struct tcpcb *", "csinfo_t *",
+    "void *", "void *",
+    "struct tcpcb *", "tcpsinfo_t *",
+    "void *", "void *",
+    "int", "tcplsinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(udp, , , receive, receive,
+    "void *", "pktinfo_t *",
+    "struct inpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct inpcb *", "udpsinfo_t *",
+    "struct udphdr *", "udpinfo_t *");
+
+SDT_PROBE_DEFINE5_XLATE(udp, , , send, send,
+    "void *", "pktinfo_t *",
+    "struct inpcb *", "csinfo_t *",
+    "uint8_t *", "ipinfo_t *",
+    "struct inpcb *", "udpsinfo_t *",
+    "struct udphdr *", "udpinfo_t *");