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Index: head/sys/netinet/tcp_usrreq.c
===================================================================
--- head/sys/netinet/tcp_usrreq.c
+++ head/sys/netinet/tcp_usrreq.c
@@ -133,6 +133,8 @@
static void tcp_usrclosed(struct tcpcb *);
static void tcp_fill_info(struct tcpcb *, struct tcp_info *);
+static int tcp_pru_options_support(struct tcpcb *tp, int flags);
+
#ifdef TCPDEBUG
#define TCPDEBUG0 int ostate = 0
#define TCPDEBUG1() ostate = tp ? tp->t_state : 0
@@ -979,6 +981,15 @@
goto out;
}
tp = intotcpcb(inp);
+ if (flags & PRUS_OOB) {
+ if ((error = tcp_pru_options_support(tp, PRUS_OOB)) != 0) {
+ if (control)
+ m_freem(control);
+ if (m && (flags & PRUS_NOTREADY) == 0)
+ m_freem(m);
+ goto out;
+ }
+ }
TCPDEBUG1();
if (nam != NULL && tp->t_state < TCPS_SYN_SENT) {
switch (nam->sa_family) {
@@ -1362,6 +1373,24 @@
NET_EPOCH_EXIT(et);
}
+static int
+tcp_pru_options_support(struct tcpcb *tp, int flags)
+{
+ /*
+ * If the specific TCP stack has a pru_options
+ * specified then it does not always support
+ * all the PRU_XX options and we must ask it.
+ * If the function is not specified then all
+ * of the PRU_XX options are supported.
+ */
+ int ret = 0;
+
+ if (tp->t_fb->tfb_pru_options) {
+ ret = (*tp->t_fb->tfb_pru_options)(tp, flags);
+ }
+ return (ret);
+}
+
/*
* Receive out-of-band data.
*/
@@ -1381,6 +1410,10 @@
goto out;
}
tp = intotcpcb(inp);
+ error = tcp_pru_options_support(tp, PRUS_OOB);
+ if (error) {
+ goto out;
+ }
TCPDEBUG1();
if ((so->so_oobmark == 0 &&
(so->so_rcv.sb_state & SBS_RCVATMARK) == 0) ||
Index: head/sys/netinet/tcp_var.h
===================================================================
--- head/sys/netinet/tcp_var.h
+++ head/sys/netinet/tcp_var.h
@@ -345,6 +345,7 @@
void (*tfb_tcp_rexmit_tmr)(struct tcpcb *);
int (*tfb_tcp_handoff_ok)(struct tcpcb *);
void (*tfb_tcp_mtu_chg)(struct tcpcb *);
+ int (*tfb_pru_options)(struct tcpcb *, int);
volatile uint32_t tfb_refcnt;
uint32_t tfb_flags;
uint8_t tfb_id;

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