#include <sys/param.h>
#include <sys/systm.h>
#include <sys/file.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/filio.h>
#include <sys/sockio.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include <sys/filedesc.h>
#include <net/if.h>
#include <net/route.h>
int soo_read __P((struct file *fp, struct uio *uio,
struct ucred *cred, int flags, struct proc *p));
int soo_write __P((struct file *fp, struct uio *uio,
struct ucred *cred, int flags, struct proc *p));
int soo_close __P((struct file *fp, struct proc *p));
int soo_select __P((struct file *fp, int which, void * wql, struct proc *p));
struct fileops socketops =
{ soo_read, soo_write, soo_ioctl, soo_select, soo_close };
int
soo_read(fp, uio, cred, flags, p)
struct file *fp;
struct uio *uio;
struct ucred *cred;
int flags;
struct proc *p;
{
struct socket *so;
struct kextcb *kp;
int stat;
int (*fsoreceive) __P((struct socket *so,
struct sockaddr **paddr,
struct uio *uio, struct mbuf **mp0,
struct mbuf **controlp, int *flagsp));
thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
if ((so = (struct socket *)fp->f_data) == NULL) {
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (EBADF);
}
fsoreceive = so->so_proto->pr_usrreqs->pru_soreceive;
if (fsoreceive != soreceive)
{ kp = sotokextcb(so);
while (kp)
{ if (kp->e_soif && kp->e_soif->sf_soreceive)
(*kp->e_soif->sf_soreceive)(so, 0, &uio,
0, 0, 0, kp);
kp = kp->e_next;
}
}
stat = (*fsoreceive)(so, 0, uio, 0, 0, 0);
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return stat;
}
int
soo_write(fp, uio, cred, flags, p)
struct file *fp;
struct uio *uio;
struct ucred *cred;
int flags;
struct proc *p;
{
struct socket *so;
int (*fsosend) __P((struct socket *so, struct sockaddr *addr,
struct uio *uio, struct mbuf *top,
struct mbuf *control, int flags));
struct kextcb *kp;
int stat;
thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
if ((so = (struct socket *)fp->f_data) == NULL) {
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (EBADF);
}
fsosend = so->so_proto->pr_usrreqs->pru_sosend;
if (fsosend != sosend)
{ kp = sotokextcb(so);
while (kp)
{ if (kp->e_soif && kp->e_soif->sf_sosend)
(*kp->e_soif->sf_sosend)(so, 0, &uio,
0, 0, 0, kp);
kp = kp->e_next;
}
}
stat = (*fsosend)(so, 0, uio, 0, 0, 0);
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
if (stat == EPIPE && uio->uio_procp && !(so->so_flags & SOF_NOSIGPIPE))
psignal(uio->uio_procp, SIGPIPE);
return stat;
}
int
soo_ioctl(fp, cmd, data, p)
struct file *fp;
u_long cmd;
register caddr_t data;
struct proc *p;
{
register struct socket *so;
struct sockopt sopt;
struct kextcb *kp;
int error = 0;
thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
if ((so = (struct socket *)fp->f_data) == NULL) {
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (EBADF);
}
kp = sotokextcb(so);
sopt.sopt_level = cmd;
sopt.sopt_name = (int)data;
sopt.sopt_p = p;
while (kp)
{ if (kp->e_soif && kp->e_soif->sf_socontrol)
(*kp->e_soif->sf_socontrol)(so, &sopt, kp);
kp = kp->e_next;
}
switch (cmd) {
case FIONBIO:
if (*(int *)data)
so->so_state |= SS_NBIO;
else
so->so_state &= ~SS_NBIO;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (0);
case FIOASYNC:
if (*(int *)data) {
so->so_state |= SS_ASYNC;
so->so_rcv.sb_flags |= SB_ASYNC;
so->so_snd.sb_flags |= SB_ASYNC;
} else {
so->so_state &= ~SS_ASYNC;
so->so_rcv.sb_flags &= ~SB_ASYNC;
so->so_snd.sb_flags &= ~SB_ASYNC;
}
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (0);
case FIONREAD:
*(int *)data = so->so_rcv.sb_cc;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (0);
case SIOCSPGRP:
so->so_pgid = *(int *)data;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (0);
case SIOCGPGRP:
*(int *)data = so->so_pgid;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (0);
case SIOCATMARK:
*(int *)data = (so->so_state&SS_RCVATMARK) != 0;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (0);
case SIOCSETOT: {
struct socket *cloned_so = NULL;
int cloned_fd = *(int *)data;
if (cloned_fd != -1) {
struct file *cloned_fp;
error = getsock(p->p_fd, cloned_fd, &cloned_fp);
if (error) {
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (error);
}
cloned_so = (struct socket *)cloned_fp->f_data;
}
fp->f_flag |= FNONBLOCK;
so->so_state |= SS_NBIO;
so->so_options |= SO_DONTTRUNC | SO_WANTMORE;
so->so_flags |= SOF_NOSIGPIPE;
if (cloned_so && so != cloned_so) {
so->so_options |= cloned_so->so_options & ~SO_ACCEPTCONN;
if (so->so_options & SO_LINGER)
so->so_linger = cloned_so->so_linger;
if (cloned_so->so_snd.sb_hiwat > 0) {
if (sbreserve(&so->so_snd, cloned_so->so_snd.sb_hiwat) == 0) {
error = ENOBUFS;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (error);
}
}
if (cloned_so->so_rcv.sb_hiwat > 0) {
if (sbreserve(&so->so_rcv, cloned_so->so_rcv.sb_hiwat) == 0) {
error = ENOBUFS;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (error);
}
}
so->so_snd.sb_lowat =
(cloned_so->so_snd.sb_lowat > so->so_snd.sb_hiwat) ?
so->so_snd.sb_hiwat : cloned_so->so_snd.sb_lowat;
so->so_rcv.sb_lowat =
(cloned_so->so_rcv.sb_lowat > so->so_rcv.sb_hiwat) ?
so->so_rcv.sb_hiwat : cloned_so->so_rcv.sb_lowat;
so->so_snd.sb_timeo = cloned_so->so_snd.sb_timeo;
so->so_rcv.sb_timeo = cloned_so->so_rcv.sb_timeo;
}
error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
if (error == EOPNOTSUPP)
error = 0;
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return (error);
}
}
if (IOCGROUP(cmd) == 'i')
error = ifioctl(so, cmd, data, p);
else
if (IOCGROUP(cmd) == 'r')
error = rtioctl(cmd, data, p);
else
error = (*so->so_proto->pr_usrreqs->pru_control)(so, cmd, data, 0, p);
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return error;
}
int
soo_select(fp, which, wql, p)
struct file *fp;
int which;
void * wql;
struct proc *p;
{
register struct socket *so = (struct socket *)fp->f_data;
register int s = splnet();
int retnum=0;
switch (which) {
case FREAD:
so->so_rcv.sb_flags |= SB_SEL;
if (soreadable(so)) {
splx(s);
retnum = 1;
so->so_rcv.sb_flags &= ~SB_SEL;
goto done;
}
selrecord(p, &so->so_rcv.sb_sel, wql);
break;
case FWRITE:
so->so_snd.sb_flags |= SB_SEL;
if (sowriteable(so)) {
splx(s);
retnum = 1;
so->so_snd.sb_flags &= ~SB_SEL;
goto done;
}
selrecord(p, &so->so_snd.sb_sel, wql);
break;
case 0:
so->so_rcv.sb_flags |= SB_SEL;
if (so->so_oobmark || (so->so_state & SS_RCVATMARK)) {
splx(s);
retnum = 1;
so->so_rcv.sb_flags &= ~SB_SEL;
goto done;
}
selrecord(p, &so->so_rcv.sb_sel, wql);
break;
}
splx(s);
done:
return (retnum);
}
int
soo_stat(so, ub)
register struct socket *so;
register struct stat *ub;
{
int stat;
thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
bzero((caddr_t)ub, sizeof (*ub));
ub->st_mode = S_IFSOCK;
stat = (*so->so_proto->pr_usrreqs->pru_sense)(so, ub);
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
return stat;
}
int
soo_close(fp, p)
struct file *fp;
struct proc *p;
{
int error = 0;
thread_funnel_switch(KERNEL_FUNNEL, NETWORK_FUNNEL);
if (fp->f_data)
error = soclose((struct socket *)fp->f_data);
thread_funnel_switch(NETWORK_FUNNEL, KERNEL_FUNNEL);
fp->f_data = 0;
return (error);
}