version 1.45, 1999/05/15 16:42:48 |
version 1.56.2.2, 2001/09/07 22:01:53 |
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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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struct pool socket_pool; |
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; |
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extern int somaxconn; /* patchable (XXX sysctl) */ |
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int somaxconn = SOMAXCONN; |
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void |
void |
soinit() |
soinit(void) |
{ |
{ |
|
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pool_init(&socket_pool, sizeof(struct socket), 0, 0, 0, |
pool_init(&socket_pool, sizeof(struct socket), 0, 0, 0, |
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*/ |
*/ |
/*ARGSUSED*/ |
/*ARGSUSED*/ |
int |
int |
socreate(dom, aso, type, proto) |
socreate(int dom, struct socket **aso, int type, int proto) |
int dom; |
{ |
struct socket **aso; |
struct proc *p; |
register int type; |
struct protosw *prp; |
int proto; |
struct socket *so; |
{ |
int error, s; |
struct proc *p = curproc; /* XXX */ |
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register struct protosw *prp; |
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register struct socket *so; |
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register int error; |
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int s; |
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|
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p = curproc; /* XXX */ |
if (proto) |
if (proto) |
prp = pffindproto(dom, proto, type); |
prp = pffindproto(dom, proto, type); |
else |
else |
Line 123 socreate(dom, aso, type, proto) |
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Line 136 socreate(dom, aso, type, proto) |
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} |
} |
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int |
int |
sobind(so, nam) |
sobind(struct socket *so, struct mbuf *nam, struct proc *p) |
struct socket *so; |
{ |
struct mbuf *nam; |
int s, error; |
{ |
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struct proc *p = curproc; /* XXX */ |
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int s = splsoftnet(); |
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int error; |
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|
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s = splsoftnet(); |
error = (*so->so_proto->pr_usrreq)(so, PRU_BIND, (struct mbuf *)0, |
error = (*so->so_proto->pr_usrreq)(so, PRU_BIND, (struct mbuf *)0, |
nam, (struct mbuf *)0, p); |
nam, (struct mbuf *)0, p); |
splx(s); |
splx(s); |
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|
} |
} |
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int |
int |
solisten(so, backlog) |
solisten(struct socket *so, int backlog) |
register struct socket *so; |
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int backlog; |
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{ |
{ |
int s = splsoftnet(), error; |
int s, error; |
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|
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s = splsoftnet(); |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, (struct mbuf *)0, |
error = (*so->so_proto->pr_usrreq)(so, PRU_LISTEN, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
if (error) { |
if (error) { |
Line 154 solisten(so, backlog) |
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Line 163 solisten(so, backlog) |
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so->so_options |= SO_ACCEPTCONN; |
so->so_options |= SO_ACCEPTCONN; |
if (backlog < 0) |
if (backlog < 0) |
backlog = 0; |
backlog = 0; |
so->so_qlimit = min(backlog, SOMAXCONN); |
so->so_qlimit = min(backlog, somaxconn); |
splx(s); |
splx(s); |
return (0); |
return (0); |
} |
} |
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void |
void |
sofree(so) |
sofree(struct socket *so) |
register struct socket *so; |
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{ |
{ |
|
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if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0) |
if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0) |
|
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* Free socket when disconnect complete. |
* Free socket when disconnect complete. |
*/ |
*/ |
int |
int |
soclose(so) |
soclose(struct socket *so) |
register struct socket *so; |
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{ |
{ |
struct socket *so2; |
struct socket *so2; |
int s = splsoftnet(); /* conservative */ |
int s, error; |
int error = 0; |
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|
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error = 0; |
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s = splsoftnet(); /* conservative */ |
if (so->so_options & SO_ACCEPTCONN) { |
if (so->so_options & SO_ACCEPTCONN) { |
while ((so2 = so->so_q0.tqh_first) != 0) { |
while ((so2 = so->so_q0.tqh_first) != 0) { |
(void) soqremque(so2, 0); |
(void) soqremque(so2, 0); |
|
|
} |
} |
} |
} |
} |
} |
drop: |
drop: |
if (so->so_pcb) { |
if (so->so_pcb) { |
int error2 = (*so->so_proto->pr_usrreq)(so, PRU_DETACH, |
int error2 = (*so->so_proto->pr_usrreq)(so, PRU_DETACH, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0, |
|
|
if (error == 0) |
if (error == 0) |
error = error2; |
error = error2; |
} |
} |
discard: |
discard: |
if (so->so_state & SS_NOFDREF) |
if (so->so_state & SS_NOFDREF) |
panic("soclose: NOFDREF"); |
panic("soclose: NOFDREF"); |
so->so_state |= SS_NOFDREF; |
so->so_state |= SS_NOFDREF; |
|
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* Must be called at splsoftnet... |
* Must be called at splsoftnet... |
*/ |
*/ |
int |
int |
soabort(so) |
soabort(struct socket *so) |
struct socket *so; |
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{ |
{ |
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return (*so->so_proto->pr_usrreq)(so, PRU_ABORT, (struct mbuf *)0, |
return (*so->so_proto->pr_usrreq)(so, PRU_ABORT, (struct mbuf *)0, |
|
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} |
} |
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int |
int |
soaccept(so, nam) |
soaccept(struct socket *so, struct mbuf *nam) |
register struct socket *so; |
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struct mbuf *nam; |
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{ |
{ |
int s = splsoftnet(); |
int s, error; |
int error; |
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error = 0; |
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s = splsoftnet(); |
if ((so->so_state & SS_NOFDREF) == 0) |
if ((so->so_state & SS_NOFDREF) == 0) |
panic("soaccept: !NOFDREF"); |
panic("soaccept: !NOFDREF"); |
so->so_state &= ~SS_NOFDREF; |
so->so_state &= ~SS_NOFDREF; |
if ((so->so_state & SS_ISDISCONNECTED) == 0) |
if ((so->so_state & SS_ISDISCONNECTED) == 0 || |
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(so->so_proto->pr_flags & PR_ABRTACPTDIS) == 0) |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, |
(struct mbuf *)0, nam, (struct mbuf *)0, (struct proc *)0); |
(struct mbuf *)0, nam, (struct mbuf *)0, (struct proc *)0); |
else |
else |
error = 0; |
error = ECONNABORTED; |
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splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
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int |
int |
soconnect(so, nam) |
soconnect(struct socket *so, struct mbuf *nam) |
register struct socket *so; |
{ |
struct mbuf *nam; |
struct proc *p; |
{ |
int s, error; |
struct proc *p = curproc; /* XXX */ |
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int s; |
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int error; |
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p = curproc; /* XXX */ |
if (so->so_options & SO_ACCEPTCONN) |
if (so->so_options & SO_ACCEPTCONN) |
return (EOPNOTSUPP); |
return (EOPNOTSUPP); |
s = splsoftnet(); |
s = splsoftnet(); |
Line 303 soconnect(so, nam) |
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Line 309 soconnect(so, nam) |
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} |
} |
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int |
int |
soconnect2(so1, so2) |
soconnect2(struct socket *so1, struct socket *so2) |
register struct socket *so1; |
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struct socket *so2; |
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{ |
{ |
int s = splsoftnet(); |
int s, error; |
int error; |
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s = splsoftnet(); |
error = (*so1->so_proto->pr_usrreq)(so1, PRU_CONNECT2, |
error = (*so1->so_proto->pr_usrreq)(so1, PRU_CONNECT2, |
(struct mbuf *)0, (struct mbuf *)so2, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)so2, (struct mbuf *)0, |
(struct proc *)0); |
(struct proc *)0); |
Line 318 soconnect2(so1, so2) |
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Line 322 soconnect2(so1, so2) |
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} |
} |
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int |
int |
sodisconnect(so) |
sodisconnect(struct socket *so) |
register struct socket *so; |
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{ |
{ |
int s = splsoftnet(); |
int s, error; |
int error; |
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s = splsoftnet(); |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
error = ENOTCONN; |
error = ENOTCONN; |
goto bad; |
goto bad; |
Line 335 sodisconnect(so) |
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Line 338 sodisconnect(so) |
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error = (*so->so_proto->pr_usrreq)(so, PRU_DISCONNECT, |
error = (*so->so_proto->pr_usrreq)(so, PRU_DISCONNECT, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct mbuf *)0, |
(struct proc *)0); |
(struct proc *)0); |
bad: |
bad: |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
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* Data and control buffers are freed on return. |
* Data and control buffers are freed on return. |
*/ |
*/ |
int |
int |
sosend(so, addr, uio, top, control, flags) |
sosend(struct socket *so, struct mbuf *addr, struct uio *uio, struct mbuf *top, |
register struct socket *so; |
struct mbuf *control, int flags) |
struct mbuf *addr; |
{ |
struct uio *uio; |
struct proc *p; |
struct mbuf *top; |
struct mbuf **mp, *m; |
struct mbuf *control; |
long space, len, resid; |
int flags; |
int clen, error, s, dontroute, mlen, atomic; |
{ |
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struct proc *p = curproc; /* XXX */ |
p = curproc; /* XXX */ |
struct mbuf **mp; |
clen = 0; |
register struct mbuf *m; |
atomic = sosendallatonce(so) || top; |
register long space, len, resid; |
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int clen = 0, error, s, dontroute, mlen; |
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int atomic = sosendallatonce(so) || top; |
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if (uio) |
if (uio) |
resid = uio->uio_resid; |
resid = uio->uio_resid; |
else |
else |
Line 397 sosend(so, addr, uio, top, control, flag |
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Line 396 sosend(so, addr, uio, top, control, flag |
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clen = control->m_len; |
clen = control->m_len; |
#define snderr(errno) { error = errno; splx(s); goto release; } |
#define snderr(errno) { error = errno; splx(s); goto release; } |
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restart: |
restart: |
if ((error = sblock(&so->so_snd, SBLOCKWAIT(flags))) != 0) |
if ((error = sblock(&so->so_snd, SBLOCKWAIT(flags))) != 0) |
goto out; |
goto out; |
do { |
do { |
s = splsoftnet(); |
s = splsoftnet(); |
if (so->so_state & SS_CANTSENDMORE) |
if (so->so_state & SS_CANTSENDMORE) |
snderr(EPIPE); |
snderr(EPIPE); |
if (so->so_error) |
if (so->so_error) { |
snderr(so->so_error); |
error = so->so_error; |
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so->so_error = 0; |
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splx(s); |
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goto release; |
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} |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
if ((so->so_state & SS_ISCONNECTED) == 0) { |
if (so->so_proto->pr_flags & PR_CONNREQUIRED) { |
if (so->so_proto->pr_flags & PR_CONNREQUIRED) { |
if ((so->so_state & SS_ISCONFIRMING) == 0 && |
if ((so->so_state & SS_ISCONFIRMING) == 0 && |
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|
len = min(MCLBYTES, resid); |
len = min(MCLBYTES, resid); |
#else |
#else |
if (atomic && top == 0) { |
if (atomic && top == 0) { |
len = min(MCLBYTES - max_hdr, resid); |
len = min(MCLBYTES - max_hdr, |
|
resid); |
m->m_data += max_hdr; |
m->m_data += max_hdr; |
} else |
} else |
len = min(MCLBYTES, resid); |
len = min(MCLBYTES, resid); |
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if (atomic && top == 0 && len < mlen) |
if (atomic && top == 0 && len < mlen) |
MH_ALIGN(m, len); |
MH_ALIGN(m, len); |
} |
} |
error = uiomove(mtod(m, caddr_t), (int)len, uio); |
error = uiomove(mtod(m, caddr_t), (int)len, |
|
uio); |
resid = uio->uio_resid; |
resid = uio->uio_resid; |
m->m_len = len; |
m->m_len = len; |
*mp = m; |
*mp = m; |
|
|
break; |
break; |
} |
} |
} while (space > 0 && atomic); |
} while (space > 0 && atomic); |
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|
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s = splsoftnet(); |
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if (so->so_state & SS_CANTSENDMORE) |
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snderr(EPIPE); |
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if (dontroute) |
if (dontroute) |
so->so_options |= SO_DONTROUTE; |
so->so_options |= SO_DONTROUTE; |
if (resid > 0) |
if (resid > 0) |
so->so_state |= SS_MORETOCOME; |
so->so_state |= SS_MORETOCOME; |
|
error = (*so->so_proto->pr_usrreq)(so, |
s = splsoftnet(); /* XXX */ |
(flags & MSG_OOB) ? PRU_SENDOOB : PRU_SEND, |
if (so->so_state & SS_CANTSENDMORE) |
top, addr, control, p); |
error = EPIPE; |
|
else |
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error = (*so->so_proto->pr_usrreq)(so, |
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(flags & MSG_OOB) ? PRU_SENDOOB : PRU_SEND, |
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top, addr, control, p); |
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splx(s); |
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if (dontroute) |
if (dontroute) |
so->so_options &= ~SO_DONTROUTE; |
so->so_options &= ~SO_DONTROUTE; |
if (resid > 0) |
if (resid > 0) |
so->so_state &= ~SS_MORETOCOME; |
so->so_state &= ~SS_MORETOCOME; |
|
splx(s); |
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clen = 0; |
clen = 0; |
control = 0; |
control = 0; |
top = 0; |
top = 0; |
|
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} while (resid && space > 0); |
} while (resid && space > 0); |
} while (resid); |
} while (resid); |
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release: |
release: |
sbunlock(&so->so_snd); |
sbunlock(&so->so_snd); |
out: |
out: |
if (top) |
if (top) |
m_freem(top); |
m_freem(top); |
if (control) |
if (control) |
|
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* only for the count in uio_resid. |
* only for the count in uio_resid. |
*/ |
*/ |
int |
int |
soreceive(so, paddr, uio, mp0, controlp, flagsp) |
soreceive(struct socket *so, struct mbuf **paddr, struct uio *uio, |
register struct socket *so; |
struct mbuf **mp0, struct mbuf **controlp, int *flagsp) |
struct mbuf **paddr; |
{ |
struct uio *uio; |
struct mbuf *m, **mp; |
struct mbuf **mp0; |
int flags, len, error, s, offset, moff, type, orig_resid; |
struct mbuf **controlp; |
struct protosw *pr; |
int *flagsp; |
struct mbuf *nextrecord; |
{ |
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register struct mbuf *m, **mp; |
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register int flags, len, error, s, offset; |
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struct protosw *pr = so->so_proto; |
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struct mbuf *nextrecord; |
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int moff, type = 0; |
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int orig_resid = uio->uio_resid; |
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pr = so->so_proto; |
mp = mp0; |
mp = mp0; |
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type = 0; |
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orig_resid = uio->uio_resid; |
if (paddr) |
if (paddr) |
*paddr = 0; |
*paddr = 0; |
if (controlp) |
if (controlp) |
Line 583 soreceive(so, paddr, uio, mp0, controlp, |
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Line 584 soreceive(so, paddr, uio, mp0, controlp, |
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(int) min(uio->uio_resid, m->m_len), uio); |
(int) min(uio->uio_resid, m->m_len), uio); |
m = m_free(m); |
m = m_free(m); |
} while (uio->uio_resid && error == 0 && m); |
} while (uio->uio_resid && error == 0 && m); |
bad: |
bad: |
if (m) |
if (m) |
m_freem(m); |
m_freem(m); |
return (error); |
return (error); |
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(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(*pr->pr_usrreq)(so, PRU_RCVD, (struct mbuf *)0, |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
(struct mbuf *)0, (struct mbuf *)0, (struct proc *)0); |
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restart: |
restart: |
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0) |
if ((error = sblock(&so->so_rcv, SBLOCKWAIT(flags))) != 0) |
return (error); |
return (error); |
s = splsoftnet(); |
s = splsoftnet(); |
|
|
return (error); |
return (error); |
goto restart; |
goto restart; |
} |
} |
dontblock: |
dontblock: |
#ifdef notyet /* XXXX */ |
#ifdef notyet /* XXXX */ |
if (uio->uio_procp) |
if (uio->uio_procp) |
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
uio->uio_procp->p_stats->p_ru.ru_msgrcv++; |
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|
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if (flagsp) |
if (flagsp) |
*flagsp |= flags; |
*flagsp |= flags; |
release: |
release: |
sbunlock(&so->so_rcv); |
sbunlock(&so->so_rcv); |
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
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int |
int |
soshutdown(so, how) |
soshutdown(struct socket *so, int how) |
struct socket *so; |
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int how; |
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{ |
{ |
struct protosw *pr = so->so_proto; |
struct protosw *pr; |
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pr = so->so_proto; |
if (!(how == SHUT_RD || how == SHUT_WR || how == SHUT_RDWR)) |
if (!(how == SHUT_RD || how == SHUT_WR || how == SHUT_RDWR)) |
return (EINVAL); |
return (EINVAL); |
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Line 867 soshutdown(so, how) |
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Line 867 soshutdown(so, how) |
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} |
} |
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void |
void |
sorflush(so) |
sorflush(struct socket *so) |
register struct socket *so; |
|
{ |
{ |
register struct sockbuf *sb = &so->so_rcv; |
struct sockbuf *sb, asb; |
register struct protosw *pr = so->so_proto; |
struct protosw *pr; |
register int s; |
int s; |
struct sockbuf asb; |
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|
|
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sb = &so->so_rcv; |
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pr = so->so_proto; |
sb->sb_flags |= SB_NOINTR; |
sb->sb_flags |= SB_NOINTR; |
(void) sblock(sb, M_WAITOK); |
(void) sblock(sb, M_WAITOK); |
s = splimp(); |
s = splnet(); |
socantrcvmore(so); |
socantrcvmore(so); |
sbunlock(sb); |
sbunlock(sb); |
asb = *sb; |
asb = *sb; |
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} |
} |
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int |
int |
sosetopt(so, level, optname, m0) |
sosetopt(struct socket *so, int level, int optname, struct mbuf *m0) |
register struct socket *so; |
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int level, optname; |
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struct mbuf *m0; |
|
{ |
{ |
int error = 0; |
int error; |
register struct mbuf *m = m0; |
struct mbuf *m; |
|
|
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error = 0; |
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m = m0; |
if (level != SOL_SOCKET) { |
if (level != SOL_SOCKET) { |
if (so->so_proto && so->so_proto->pr_ctloutput) |
if (so->so_proto && so->so_proto->pr_ctloutput) |
return ((*so->so_proto->pr_ctloutput) |
return ((*so->so_proto->pr_ctloutput) |
Line 1023 sosetopt(so, level, optname, m0) |
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Line 1022 sosetopt(so, level, optname, m0) |
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m = NULL; /* freed by protocol */ |
m = NULL; /* freed by protocol */ |
} |
} |
} |
} |
bad: |
bad: |
if (m) |
if (m) |
(void) m_free(m); |
(void) m_free(m); |
return (error); |
return (error); |
} |
} |
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int |
int |
sogetopt(so, level, optname, mp) |
sogetopt(struct socket *so, int level, int optname, struct mbuf **mp) |
register struct socket *so; |
|
int level, optname; |
|
struct mbuf **mp; |
|
{ |
{ |
register struct mbuf *m; |
struct mbuf *m; |
|
|
if (level != SOL_SOCKET) { |
if (level != SOL_SOCKET) { |
if (so->so_proto && so->so_proto->pr_ctloutput) { |
if (so->so_proto && so->so_proto->pr_ctloutput) { |
Line 1116 sogetopt(so, level, optname, mp) |
|
Line 1112 sogetopt(so, level, optname, mp) |
|
} |
} |
|
|
void |
void |
sohasoutofband(so) |
sohasoutofband(struct socket *so) |
register struct socket *so; |
|
{ |
{ |
struct proc *p; |
struct proc *p; |
|
|
Line 1127 sohasoutofband(so) |
|
Line 1122 sohasoutofband(so) |
|
psignal(p, SIGURG); |
psignal(p, SIGURG); |
selwakeup(&so->so_rcv.sb_sel); |
selwakeup(&so->so_rcv.sb_sel); |
} |
} |
|
|
|
|
|
int |
|
soo_kqfilter(struct file *fp, struct knote *kn) |
|
{ |
|
struct socket *so; |
|
struct sockbuf *sb; |
|
int s; |
|
|
|
so = (struct socket *)kn->kn_fp->f_data; |
|
switch (kn->kn_filter) { |
|
case EVFILT_READ: |
|
if (so->so_options & SO_ACCEPTCONN) |
|
kn->kn_fop = &solisten_filtops; |
|
else |
|
kn->kn_fop = &soread_filtops; |
|
sb = &so->so_rcv; |
|
break; |
|
case EVFILT_WRITE: |
|
kn->kn_fop = &sowrite_filtops; |
|
sb = &so->so_snd; |
|
break; |
|
default: |
|
return (1); |
|
} |
|
s = splnet(); /* XXXLUKEM: maybe splsoftnet() ? */ |
|
SLIST_INSERT_HEAD(&sb->sb_sel.si_klist, kn, kn_selnext); |
|
sb->sb_flags |= SB_KNOTE; |
|
splx(s); |
|
return (0); |
|
} |
|
|
|
static void |
|
filt_sordetach(struct knote *kn) |
|
{ |
|
struct socket *so; |
|
int s; |
|
|
|
so = (struct socket *)kn->kn_fp->f_data; |
|
s = splnet(); /* XXXLUKEM: maybe splsoftnet() ? */ |
|
SLIST_REMOVE(&so->so_rcv.sb_sel.si_klist, kn, knote, kn_selnext); |
|
if (SLIST_EMPTY(&so->so_rcv.sb_sel.si_klist)) |
|
so->so_rcv.sb_flags &= ~SB_KNOTE; |
|
splx(s); |
|
} |
|
|
|
/*ARGSUSED*/ |
|
static int |
|
filt_soread(struct knote *kn, long hint) |
|
{ |
|
struct socket *so; |
|
|
|
so = (struct socket *)kn->kn_fp->f_data; |
|
kn->kn_data = so->so_rcv.sb_cc; |
|
if (so->so_state & SS_CANTRCVMORE) { |
|
kn->kn_flags |= EV_EOF; |
|
kn->kn_fflags = so->so_error; |
|
return (1); |
|
} |
|
if (so->so_error) /* temporary udp error */ |
|
return (1); |
|
if (kn->kn_sfflags & NOTE_LOWAT) |
|
return (kn->kn_data >= kn->kn_sdata); |
|
return (kn->kn_data >= so->so_rcv.sb_lowat); |
|
} |
|
|
|
static void |
|
filt_sowdetach(struct knote *kn) |
|
{ |
|
struct socket *so; |
|
int s; |
|
|
|
so = (struct socket *)kn->kn_fp->f_data; |
|
s = splnet(); /* XXXLUKEM: maybe splsoftnet() ? */ |
|
SLIST_REMOVE(&so->so_snd.sb_sel.si_klist, kn, knote, kn_selnext); |
|
if (SLIST_EMPTY(&so->so_snd.sb_sel.si_klist)) |
|
so->so_snd.sb_flags &= ~SB_KNOTE; |
|
splx(s); |
|
} |
|
|
|
/*ARGSUSED*/ |
|
static int |
|
filt_sowrite(struct knote *kn, long hint) |
|
{ |
|
struct socket *so; |
|
|
|
so = (struct socket *)kn->kn_fp->f_data; |
|
kn->kn_data = sbspace(&so->so_snd); |
|
if (so->so_state & SS_CANTSENDMORE) { |
|
kn->kn_flags |= EV_EOF; |
|
kn->kn_fflags = so->so_error; |
|
return (1); |
|
} |
|
if (so->so_error) /* temporary udp error */ |
|
return (1); |
|
if (((so->so_state & SS_ISCONNECTED) == 0) && |
|
(so->so_proto->pr_flags & PR_CONNREQUIRED)) |
|
return (0); |
|
if (kn->kn_sfflags & NOTE_LOWAT) |
|
return (kn->kn_data >= kn->kn_sdata); |
|
return (kn->kn_data >= so->so_snd.sb_lowat); |
|
} |
|
|
|
/*ARGSUSED*/ |
|
static int |
|
filt_solisten(struct knote *kn, long hint) |
|
{ |
|
struct socket *so; |
|
|
|
so = (struct socket *)kn->kn_fp->f_data; |
|
#if 0 |
|
/* |
|
* XXXLUKEM: this was freebsd's code. it appears that they |
|
* XXXLUKEM: modified the socket code to store the count |
|
* XXXLUKEM: of all connections in so_qlen, and separately |
|
* XXXLUKEM: track the number of incompletes in so_incqlen. |
|
* XXXLUKEM: as we appear to keep only completed connections |
|
* XXXLUKEM: on so_qlen we can just return that. |
|
* XXXLUKEM: that said, a socket guru should double check for me :) |
|
*/ |
|
kn->kn_data = so->so_qlen - so->so_incqlen; |
|
return (! TAILQ_EMPTY(&so->so_comp)); |
|
#else |
|
kn->kn_data = so->so_qlen; |
|
return (kn->kn_data > 0); |
|
#endif |
|
} |