/*
* NAME: tp_soisdisconnected()
*
* CALLED FROM:
* tp.trans
*
* FUNCTION and ARGUMENTS:
* Set state of the socket (so) to reflect that fact that we're disconnectED
* Set the state of the reference structure to closed, and
* recycle the suffix.
* Start a reference timer.
*
* RETURNS: Nada
*
* SIDE EFFECTS:
*
* NOTES:
* This differs from the regular soisdisconnected() in that the latter
* also sets the SS_CANTRECVMORE and SS_CANTSENDMORE flags.
* We don't want to set those flags because those flags will cause
* a SIGPIPE to be delivered in sosend() and we don't like that.
* If anyone else is sleeping on this socket, wake 'em up.
*/
void
tp_soisdisconnected(struct tp_pcb *tpcb)
{
struct socket *so = tpcb->tp_sock;
soisdisconnecting(so);
so->so_state &= ~SS_CANTSENDMORE;
#ifdef TP_PERF_MEAS
if (DOPERF(tpcb)) {
struct tp_pcb *ttpcb = sototpcb(so);
u_int fsufx, lsufx;
struct timeval now;
/* CHOKE */
bcopy((void *) ttpcb->tp_fsuffix, (void *) &fsufx,
sizeof(u_int));
bcopy((void *) ttpcb->tp_lsuffix, (void *) &lsufx,
sizeof(u_int));
getmicrotime(&now);
tpmeas(ttpcb->tp_lref, TPtime_close,
&now, &lsufx, &fsufx, ttpcb->tp_fref);
tpcb->tp_perf_on = 0; /* turn perf off */
}
#endif
tpcb->tp_refstate = REF_FROZEN;
tp_recycle_tsuffix(tpcb);
tp_etimeout(tpcb, TM_reference, (int) tpcb->tp_refer_ticks);
}
/*
* Initiate (or continue) disconnect.
* If embryonic state, just send reset (once).
* If in ``let data drain'' option and linger null, just drop.
* Otherwise (hard), mark socket disconnecting and drop
* current input data; switch states based on user close, and
* send segment to peer (with FIN).
*/
static void
tcp_disconnect(struct tcpcb *tp)
{
struct inpcb *inp = tp->t_inpcb;
struct socket *so = inp->inp_socket;
INP_INFO_WLOCK_ASSERT(&V_tcbinfo);
INP_WLOCK_ASSERT(inp);
/*
* Neither tcp_close() nor tcp_drop() should return NULL, as the
* socket is still open.
*/
if (tp->t_state < TCPS_ESTABLISHED) {
tp = tcp_close(tp);
KASSERT(tp != NULL,
("tcp_disconnect: tcp_close() returned NULL"));
} else if ((so->so_options & SO_LINGER) && so->so_linger == 0) {
tp = tcp_drop(tp, 0);
KASSERT(tp != NULL,
("tcp_disconnect: tcp_drop() returned NULL"));
} else {
soisdisconnecting(so);
sbflush(&so->so_rcv);
tcp_usrclosed(tp);
if (!(inp->inp_flags & INP_DROPPED))
tcp_output_disconnect(tp);
}
}
static int
rfcomm_disconnect(struct socket *so)
{
struct rfcomm_dlc *pcb = so->so_pcb;
KASSERT(solocked(so));
if (pcb == NULL)
return EINVAL;
soisdisconnecting(so);
return rfcomm_disconnect_pcb(pcb, so->so_linger);
}
struct tcpcb *
tcp_disconnect(struct tcpcb * tp)
{
struct socket * so = tp->t_inpcb->inp_socket;
if (tp->t_state < TCPS_ESTABLISHED)
tp = tcp_close(tp);
else if ((so->so_options & SO_LINGER) && so->so_linger == 0)
tp = tcp_drop(tp, 0);
else
{
soisdisconnecting(so);
sbflush(&so->so_rcv);
tp = tcp_usrclosed(tp);
if (tp)
(void) tcp_output(tp);
}
return (tp);
}
/*
* Initiate (or continue) disconnect.
* If embryonic state, just send reset (once).
* If in ``let data drain'' option and linger null, just drop.
* Otherwise (hard), mark socket disconnecting and drop
* current input data; switch states based on user close, and
* send segment to peer (with FIN).
*/
static struct tcpcb *
tcp_disconnect(struct tcpcb *tp)
{
struct socket *so = tp->t_inpcb->inp_socket;
if (tp->t_state < TCPS_ESTABLISHED) {
tp = tcp_close(tp);
} else if ((so->so_options & SO_LINGER) && so->so_linger == 0) {
tp = tcp_drop(tp, 0);
} else {
lwkt_gettoken(&so->so_rcv.ssb_token);
soisdisconnecting(so);
sbflush(&so->so_rcv.sb);
tp = tcp_usrclosed(tp);
if (tp)
tcp_output(tp);
lwkt_reltoken(&so->so_rcv.ssb_token);
}
return (tp);
}
/*
* NAME: tp_soisdisconnecting()
*
* CALLED FROM:
* tp.trans
*
* FUNCTION and ARGUMENTS:
* Set state of the socket (so) to reflect that fact that we're disconnectING
*
* RETURNS: Nada
*
* SIDE EFFECTS:
*
* NOTES:
* This differs from the regular soisdisconnecting() in that the latter
* also sets the SS_CANTRECVMORE and SS_CANTSENDMORE flags.
* We don't want to set those flags because those flags will cause
* a SIGPIPE to be delivered in sosend() and we don't like that.
* If anyone else is sleeping on this socket, wake 'em up.
*/
void
tp_soisdisconnecting(struct socket *so)
{
soisdisconnecting(so);
so->so_state &= ~SS_CANTSENDMORE;
#ifdef TP_PERF_MEAS
if (DOPERF(sototpcb(so))) {
struct tp_pcb *tpcb = sototpcb(so);
u_int fsufx, lsufx;
struct timeval now;
bcopy((void *) tpcb->tp_fsuffix, (void *) &fsufx,
sizeof(u_int));
bcopy((void *) tpcb->tp_lsuffix, (void *) &lsufx,
sizeof(u_int));
getmicrotime(&now);
tpmeas(tpcb->tp_lref, TPtime_close, &now, fsufx, lsufx,
tpcb->tp_fref);
tpcb->tp_perf_on = 0; /* turn perf off */
}
#endif
}
/*
* User Request.
* up is socket
* m is either
* optional mbuf chain containing message
* ioctl command (PRU_CONTROL)
* nam is either
* optional mbuf chain containing an address
* ioctl data (PRU_CONTROL)
* optionally protocol number (PRU_ATTACH)
* message flags (PRU_RCVD)
* ctl is either
* optional mbuf chain containing socket options
* optional interface pointer (PRU_CONTROL, PRU_PURGEIF)
* l is pointer to process requesting action (if any)
*
* we are responsible for disposing of m and ctl if
* they are mbuf chains
*/
int
rfcomm_usrreq(struct socket *up, int req, struct mbuf *m,
struct mbuf *nam, struct mbuf *ctl, struct lwp *l)
{
struct rfcomm_dlc *pcb = up->so_pcb;
struct sockaddr_bt *sa;
struct mbuf *m0;
int err = 0;
DPRINTFN(2, "%s\n", prurequests[req]);
switch (req) {
case PRU_CONTROL:
return EPASSTHROUGH;
case PRU_PURGEIF:
return EOPNOTSUPP;
case PRU_ATTACH:
if (up->so_lock == NULL) {
mutex_obj_hold(bt_lock);
up->so_lock = bt_lock;
solock(up);
}
KASSERT(solocked(up));
if (pcb != NULL)
return EINVAL;
/*
* Since we have nothing to add, we attach the DLC
* structure directly to our PCB pointer.
*/
err = soreserve(up, rfcomm_sendspace, rfcomm_recvspace);
if (err)
return err;
err = rfcomm_attach((struct rfcomm_dlc **)&up->so_pcb,
&rfcomm_proto, up);
if (err)
return err;
err = rfcomm_rcvd(up->so_pcb, sbspace(&up->so_rcv));
if (err) {
rfcomm_detach((struct rfcomm_dlc **)&up->so_pcb);
return err;
}
return 0;
}
if (pcb == NULL) {
err = EINVAL;
goto release;
}
switch(req) {
case PRU_DISCONNECT:
soisdisconnecting(up);
return rfcomm_disconnect(pcb, up->so_linger);
case PRU_ABORT:
rfcomm_disconnect(pcb, 0);
soisdisconnected(up);
/* fall through to */
case PRU_DETACH:
return rfcomm_detach((struct rfcomm_dlc **)&up->so_pcb);
case PRU_BIND:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
if (sa->bt_len != sizeof(struct sockaddr_bt))
return EINVAL;
if (sa->bt_family != AF_BLUETOOTH)
return EAFNOSUPPORT;
return rfcomm_bind(pcb, sa);
case PRU_CONNECT:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
if (sa->bt_len != sizeof(struct sockaddr_bt))
return EINVAL;
if (sa->bt_family != AF_BLUETOOTH)
return EAFNOSUPPORT;
soisconnecting(up);
return rfcomm_connect(pcb, sa);
case PRU_PEERADDR:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return rfcomm_peeraddr(pcb, sa);
case PRU_SOCKADDR:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return rfcomm_sockaddr(pcb, sa);
case PRU_SHUTDOWN:
socantsendmore(up);
break;
case PRU_SEND:
KASSERT(m != NULL);
if (ctl) /* no use for that */
m_freem(ctl);
m0 = m_copypacket(m, M_DONTWAIT);
if (m0 == NULL)
return ENOMEM;
sbappendstream(&up->so_snd, m);
return rfcomm_send(pcb, m0);
case PRU_SENSE:
return 0; /* (no release) */
case PRU_RCVD:
return rfcomm_rcvd(pcb, sbspace(&up->so_rcv));
case PRU_RCVOOB:
return EOPNOTSUPP; /* (no release) */
case PRU_LISTEN:
return rfcomm_listen(pcb);
case PRU_ACCEPT:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return rfcomm_peeraddr(pcb, sa);
case PRU_CONNECT2:
case PRU_SENDOOB:
case PRU_FASTTIMO:
case PRU_SLOWTIMO:
case PRU_PROTORCV:
case PRU_PROTOSEND:
err = EOPNOTSUPP;
break;
default:
UNKNOWN(req);
err = EOPNOTSUPP;
break;
}
release:
if (m) m_freem(m);
if (ctl) m_freem(ctl);
return err;
}
/*
* User Request.
* up is socket
* m is either
* optional mbuf chain containing message
* ioctl command (PRU_CONTROL)
* nam is either
* optional mbuf chain containing an address
* ioctl data (PRU_CONTROL)
* optionally protocol number (PRU_ATTACH)
* message flags (PRU_RCVD)
* ctl is either
* optional mbuf chain containing socket options
* optional interface pointer (PRU_CONTROL, PRU_PURGEIF)
* l is pointer to process requesting action (if any)
*
* we are responsible for disposing of m and ctl if
* they are mbuf chains
*/
int
l2cap_usrreq(struct socket *up, int req, struct mbuf *m,
struct mbuf *nam, struct mbuf *ctl, struct proc *p)
{
struct l2cap_channel *pcb = up->so_pcb;
struct sockaddr_bt *sa;
struct mbuf *m0;
int err = 0;
#ifdef notyet /* XXX */
DPRINTFN(2, "%s\n", prurequests[req]);
#endif
switch (req) {
case PRU_CONTROL:
return EPASSTHROUGH;
#ifdef notyet /* XXX */
case PRU_PURGEIF:
return EOPNOTSUPP;
#endif
case PRU_ATTACH:
/* XXX solock() and bt_lock fiddling in NetBSD */
if (pcb != NULL)
return EINVAL;
/*
* For L2CAP socket PCB we just use an l2cap_channel structure
* since we have nothing to add..
*/
err = soreserve(up, l2cap_sendspace, l2cap_recvspace);
if (err)
return err;
return l2cap_attach((struct l2cap_channel **)&up->so_pcb,
&l2cap_proto, up);
}
if (pcb == NULL) {
err = EINVAL;
goto release;
}
switch(req) {
case PRU_DISCONNECT:
soisdisconnecting(up);
return l2cap_disconnect(pcb, up->so_linger);
case PRU_ABORT:
l2cap_disconnect(pcb, 0);
soisdisconnected(up);
/* fall through to */
case PRU_DETACH:
return l2cap_detach((struct l2cap_channel **)&up->so_pcb);
case PRU_BIND:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
if (sa->bt_len != sizeof(struct sockaddr_bt))
return EINVAL;
if (sa->bt_family != AF_BLUETOOTH)
return EAFNOSUPPORT;
return l2cap_bind(pcb, sa);
case PRU_CONNECT:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
if (sa->bt_len != sizeof(struct sockaddr_bt))
return EINVAL;
if (sa->bt_family != AF_BLUETOOTH)
return EAFNOSUPPORT;
soisconnecting(up);
return l2cap_connect(pcb, sa);
case PRU_PEERADDR:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return l2cap_peeraddr(pcb, sa);
case PRU_SOCKADDR:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return l2cap_sockaddr(pcb, sa);
case PRU_SHUTDOWN:
socantsendmore(up);
break;
case PRU_SEND:
KASSERT(m != NULL);
if (m->m_pkthdr.len == 0)
break;
if (m->m_pkthdr.len > pcb->lc_omtu) {
err = EMSGSIZE;
break;
}
m0 = m_copym(m, 0, M_COPYALL, M_DONTWAIT);
if (m0 == NULL) {
err = ENOMEM;
break;
}
if (ctl) /* no use for that */
m_freem(ctl);
sbappendrecord(&up->so_snd, m);
return l2cap_send(pcb, m0);
case PRU_SENSE:
return 0; /* (no release) */
case PRU_RCVD:
case PRU_RCVOOB:
return EOPNOTSUPP; /* (no release) */
case PRU_LISTEN:
return l2cap_listen(pcb);
case PRU_ACCEPT:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return l2cap_peeraddr(pcb, sa);
case PRU_CONNECT2:
case PRU_SENDOOB:
case PRU_FASTTIMO:
case PRU_SLOWTIMO:
case PRU_PROTORCV:
case PRU_PROTOSEND:
err = EOPNOTSUPP;
break;
default:
UNKNOWN(req);
err = EOPNOTSUPP;
break;
}
release:
if (m) m_freem(m);
if (ctl) m_freem(ctl);
return err;
}
/*
* User Request.
* up is socket
* m is either
* optional mbuf chain containing message
* ioctl command (PRU_CONTROL)
* nam is either
* optional mbuf chain containing an address
* ioctl data (PRU_CONTROL)
* ctl is optional mbuf chain containing socket options
* l is pointer to process requesting action (if any)
*
* we are responsible for disposing of m and ctl if
* they are mbuf chains
*/
static int
sco_usrreq(struct socket *up, int req, struct mbuf *m,
struct mbuf *nam, struct mbuf *ctl, struct lwp *l)
{
struct sco_pcb *pcb = (struct sco_pcb *)up->so_pcb;
struct sockaddr_bt *sa;
struct mbuf *m0;
int err = 0;
DPRINTFN(2, "%s\n", prurequests[req]);
KASSERT(req != PRU_ATTACH);
KASSERT(req != PRU_DETACH);
switch(req) {
case PRU_CONTROL:
return EOPNOTSUPP;
case PRU_PURGEIF:
return EOPNOTSUPP;
}
/* anything after here *requires* a pcb */
if (pcb == NULL) {
err = EINVAL;
goto release;
}
switch(req) {
case PRU_DISCONNECT:
soisdisconnecting(up);
return sco_disconnect(pcb, up->so_linger);
case PRU_ABORT:
sco_disconnect(pcb, 0);
soisdisconnected(up);
sco_detach(up);
return 0;
case PRU_BIND:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
if (sa->bt_len != sizeof(struct sockaddr_bt))
return EINVAL;
if (sa->bt_family != AF_BLUETOOTH)
return EAFNOSUPPORT;
return sco_bind(pcb, sa);
case PRU_CONNECT:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
if (sa->bt_len != sizeof(struct sockaddr_bt))
return EINVAL;
if (sa->bt_family != AF_BLUETOOTH)
return EAFNOSUPPORT;
soisconnecting(up);
return sco_connect(pcb, sa);
case PRU_PEERADDR:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return sco_peeraddr(pcb, sa);
case PRU_SOCKADDR:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return sco_sockaddr(pcb, sa);
case PRU_SHUTDOWN:
socantsendmore(up);
break;
case PRU_SEND:
KASSERT(m != NULL);
if (m->m_pkthdr.len == 0)
break;
if (m->m_pkthdr.len > pcb->sp_mtu) {
err = EMSGSIZE;
break;
}
m0 = m_copypacket(m, M_DONTWAIT);
if (m0 == NULL) {
err = ENOMEM;
break;
}
if (ctl) /* no use for that */
m_freem(ctl);
sbappendrecord(&up->so_snd, m);
return sco_send(pcb, m0);
case PRU_SENSE:
return 0; /* (no sense - Doh!) */
case PRU_RCVD:
case PRU_RCVOOB:
return EOPNOTSUPP; /* (no release) */
case PRU_LISTEN:
return sco_listen(pcb);
case PRU_ACCEPT:
KASSERT(nam != NULL);
sa = mtod(nam, struct sockaddr_bt *);
nam->m_len = sizeof(struct sockaddr_bt);
return sco_peeraddr(pcb, sa);
case PRU_CONNECT2:
case PRU_SENDOOB:
case PRU_FASTTIMO:
case PRU_SLOWTIMO:
case PRU_PROTORCV:
case PRU_PROTOSEND:
err = EOPNOTSUPP;
break;
default:
UNKNOWN(req);
err = EOPNOTSUPP;
break;
}
release:
if (m) m_freem(m);
if (ctl) m_freem(ctl);
return err;
}
