diff options
Diffstat (limited to 'sys/netinet/tcp_output.c')
| -rw-r--r-- | sys/netinet/tcp_output.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/sys/netinet/tcp_output.c b/sys/netinet/tcp_output.c index b4342f3b7b3f5..00d541596b026 100644 --- a/sys/netinet/tcp_output.c +++ b/sys/netinet/tcp_output.c @@ -35,6 +35,7 @@ __FBSDID("$FreeBSD$"); #include "opt_inet.h" #include "opt_inet6.h" #include "opt_ipsec.h" +#include "opt_kdtrace.h" #include "opt_tcpdebug.h" #include <sys/param.h> @@ -46,6 +47,7 @@ __FBSDID("$FreeBSD$"); #include <sys/mbuf.h> #include <sys/mutex.h> #include <sys/protosw.h> +#include <sys/sdt.h> #include <sys/socket.h> #include <sys/socketvar.h> #include <sys/sysctl.h> @@ -56,6 +58,7 @@ __FBSDID("$FreeBSD$"); #include <netinet/cc.h> #include <netinet/in.h> +#include <netinet/in_kdtrace.h> #include <netinet/in_systm.h> #include <netinet/ip.h> #include <netinet/in_pcb.h> @@ -1174,6 +1177,18 @@ send: */ ip6->ip6_hlim = in6_selecthlim(tp->t_inpcb, NULL); + /* + * Set the packet size here for the benefit of DTrace probes. + * ip6_output() will set it properly; it's supposed to include + * the option header lengths as well. + */ + ip6->ip6_plen = htons(m->m_pkthdr.len - sizeof(*ip6)); + + if (tp->t_state == TCPS_SYN_SENT) + TCP_PROBE5(connect_request, NULL, tp, ip6, tp, th); + + TCP_PROBE5(send, NULL, tp, ip6, tp, th); + /* TODO: IPv6 IP6TOS_ECT bit on */ error = ip6_output(m, tp->t_inpcb->in6p_outputopts, &ro, ((so->so_options & SO_DONTROUTE) ? IP_ROUTETOIF : 0), @@ -1208,6 +1223,11 @@ send: if (V_path_mtu_discovery && tp->t_maxopd > V_tcp_minmss) ip->ip_off |= htons(IP_DF); + if (tp->t_state == TCPS_SYN_SENT) + TCP_PROBE5(connect_request, NULL, tp, ip, tp, th); + + TCP_PROBE5(send, NULL, tp, ip, tp, th); + error = ip_output(m, tp->t_inpcb->inp_options, &ro, ((so->so_options & SO_DONTROUTE) ? IP_ROUTETOIF : 0), 0, tp->t_inpcb); |