version 1.56, 2001/04/13 23:30:10 |
version 1.56.2.4, 2002/03/15 21:36:11 |
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* @(#)uipc_socket.c 8.6 (Berkeley) 5/2/95 |
* @(#)uipc_socket.c 8.6 (Berkeley) 5/2/95 |
*/ |
*/ |
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#include "opt_compat_sunos.h" |
#include <sys/cdefs.h> |
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__KERNEL_RCSID(0, "$NetBSD$"); |
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#include <sys/param.h> |
#include <sys/param.h> |
#include <sys/systm.h> |
#include <sys/systm.h> |
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#include <sys/signalvar.h> |
#include <sys/signalvar.h> |
#include <sys/resourcevar.h> |
#include <sys/resourcevar.h> |
#include <sys/pool.h> |
#include <sys/pool.h> |
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#include <sys/event.h> |
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static void filt_sordetach(struct knote *kn); |
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static int filt_soread(struct knote *kn, long hint); |
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static void filt_sowdetach(struct knote *kn); |
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static int filt_sowrite(struct knote *kn, long hint); |
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static int filt_solisten(struct knote *kn, long hint); |
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static const struct filterops solisten_filtops = |
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{ 1, NULL, filt_sordetach, filt_solisten }; |
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const struct filterops soread_filtops = |
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{ 1, NULL, filt_sordetach, filt_soread }; |
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const struct filterops sowrite_filtops = |
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{ 1, NULL, filt_sowdetach, filt_sowrite }; |
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struct pool socket_pool; |
struct pool socket_pool; |
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Line 109 socreate(int dom, struct socket **aso, i |
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Line 124 socreate(int dom, struct socket **aso, i |
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splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
#ifdef COMPAT_SUNOS |
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{ |
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extern struct emul emul_sunos; |
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if (p->p_emul == &emul_sunos && type == SOCK_DGRAM) |
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so->so_options |= SO_BROADCAST; |
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} |
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#endif |
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splx(s); |
splx(s); |
*aso = so; |
*aso = so; |
return (0); |
return (0); |
Line 353 sosend(struct socket *so, struct mbuf *a |
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Line 361 sosend(struct socket *so, struct mbuf *a |
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{ |
{ |
struct proc *p; |
struct proc *p; |
struct mbuf **mp, *m; |
struct mbuf **mp, *m; |
long space, len, resid; |
long space, len, resid, clen, mlen; |
int clen, error, s, dontroute, mlen, atomic; |
int error, s, dontroute, atomic; |
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p = curproc; /* XXX */ |
p = curproc; /* XXX */ |
clen = 0; |
clen = 0; |
Line 447 sosend(struct socket *so, struct mbuf *a |
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Line 455 sosend(struct socket *so, struct mbuf *a |
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goto nopages; |
goto nopages; |
mlen = MCLBYTES; |
mlen = MCLBYTES; |
#ifdef MAPPED_MBUFS |
#ifdef MAPPED_MBUFS |
len = min(MCLBYTES, resid); |
len = lmin(MCLBYTES, resid); |
#else |
#else |
if (atomic && top == 0) { |
if (atomic && top == 0) { |
len = min(MCLBYTES - max_hdr, |
len = lmin(MCLBYTES - max_hdr, |
resid); |
resid); |
m->m_data += max_hdr; |
m->m_data += max_hdr; |
} else |
} else |
len = min(MCLBYTES, resid); |
len = lmin(MCLBYTES, resid); |
#endif |
#endif |
space -= len; |
space -= len; |
} else { |
} else { |
nopages: |
nopages: |
len = min(min(mlen, resid), space); |
len = lmin(lmin(mlen, resid), space); |
space -= len; |
space -= len; |
/* |
/* |
* For datagram protocols, leave room |
* For datagram protocols, leave room |
Line 736 soreceive(struct socket *so, struct mbuf |
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Line 744 soreceive(struct socket *so, struct mbuf |
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splx(s); |
splx(s); |
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio); |
error = uiomove(mtod(m, caddr_t) + moff, (int)len, uio); |
s = splsoftnet(); |
s = splsoftnet(); |
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if (error) |
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goto release; |
} else |
} else |
uio->uio_resid -= len; |
uio->uio_resid -= len; |
if (len == m->m_len - moff) { |
if (len == m->m_len - moff) { |
Line 1108 sohasoutofband(struct socket *so) |
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Line 1118 sohasoutofband(struct socket *so) |
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psignal(p, SIGURG); |
psignal(p, SIGURG); |
selwakeup(&so->so_rcv.sb_sel); |
selwakeup(&so->so_rcv.sb_sel); |
} |
} |
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int |
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soo_kqfilter(struct file *fp, struct knote *kn) |
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{ |
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struct socket *so; |
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struct sockbuf *sb; |
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so = (struct socket *)kn->kn_fp->f_data; |
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switch (kn->kn_filter) { |
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case EVFILT_READ: |
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if (so->so_options & SO_ACCEPTCONN) |
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kn->kn_fop = &solisten_filtops; |
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else |
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kn->kn_fop = &soread_filtops; |
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sb = &so->so_rcv; |
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break; |
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case EVFILT_WRITE: |
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kn->kn_fop = &sowrite_filtops; |
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sb = &so->so_snd; |
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break; |
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default: |
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return (1); |
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} |
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SLIST_INSERT_HEAD(&sb->sb_sel.si_klist, kn, kn_selnext); |
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sb->sb_flags |= SB_KNOTE; |
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return (0); |
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} |
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static void |
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filt_sordetach(struct knote *kn) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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SLIST_REMOVE(&so->so_rcv.sb_sel.si_klist, kn, knote, kn_selnext); |
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if (SLIST_EMPTY(&so->so_rcv.sb_sel.si_klist)) |
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so->so_rcv.sb_flags &= ~SB_KNOTE; |
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} |
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/*ARGSUSED*/ |
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static int |
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filt_soread(struct knote *kn, long hint) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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kn->kn_data = so->so_rcv.sb_cc; |
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if (so->so_state & SS_CANTRCVMORE) { |
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kn->kn_flags |= EV_EOF; |
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kn->kn_fflags = so->so_error; |
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return (1); |
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} |
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if (so->so_error) /* temporary udp error */ |
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return (1); |
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if (kn->kn_sfflags & NOTE_LOWAT) |
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return (kn->kn_data >= kn->kn_sdata); |
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return (kn->kn_data >= so->so_rcv.sb_lowat); |
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} |
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static void |
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filt_sowdetach(struct knote *kn) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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SLIST_REMOVE(&so->so_snd.sb_sel.si_klist, kn, knote, kn_selnext); |
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if (SLIST_EMPTY(&so->so_snd.sb_sel.si_klist)) |
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so->so_snd.sb_flags &= ~SB_KNOTE; |
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} |
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/*ARGSUSED*/ |
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static int |
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filt_sowrite(struct knote *kn, long hint) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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kn->kn_data = sbspace(&so->so_snd); |
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if (so->so_state & SS_CANTSENDMORE) { |
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kn->kn_flags |= EV_EOF; |
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kn->kn_fflags = so->so_error; |
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return (1); |
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} |
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if (so->so_error) /* temporary udp error */ |
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return (1); |
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if (((so->so_state & SS_ISCONNECTED) == 0) && |
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(so->so_proto->pr_flags & PR_CONNREQUIRED)) |
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return (0); |
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if (kn->kn_sfflags & NOTE_LOWAT) |
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return (kn->kn_data >= kn->kn_sdata); |
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return (kn->kn_data >= so->so_snd.sb_lowat); |
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} |
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/*ARGSUSED*/ |
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static int |
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filt_solisten(struct knote *kn, long hint) |
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{ |
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struct socket *so; |
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so = (struct socket *)kn->kn_fp->f_data; |
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/* |
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* Set kn_data to number of incoming connections, not |
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* counting partial (incomplete) connections. |
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*/ |
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kn->kn_data = so->so_qlen; |
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return (kn->kn_data > 0); |
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} |