version 1.36, 1998/07/31 22:50:52 |
version 1.50.4.4, 2002/06/12 20:41:45 |
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#include <sys/socketvar.h> |
#include <sys/socketvar.h> |
#include <sys/signalvar.h> |
#include <sys/signalvar.h> |
#include <sys/resourcevar.h> |
#include <sys/resourcevar.h> |
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#include <sys/pool.h> |
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struct pool socket_pool; |
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|
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extern int somaxconn; /* patchable (XXX sysctl) */ |
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int somaxconn = SOMAXCONN; |
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|
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void |
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soinit() |
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{ |
|
|
|
pool_init(&socket_pool, sizeof(struct socket), 0, 0, 0, |
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"sockpl", 0, NULL, NULL, M_SOCKET); |
|
} |
|
|
/* |
/* |
* Socket operation routines. |
* Socket operation routines. |
|
|
socreate(dom, aso, type, proto) |
socreate(dom, aso, type, proto) |
int dom; |
int dom; |
struct socket **aso; |
struct socket **aso; |
register int type; |
int type; |
int proto; |
int proto; |
{ |
{ |
struct proc *p = curproc; /* XXX */ |
struct proc *p = curproc; /* XXX */ |
register struct protosw *prp; |
struct protosw *prp; |
register struct socket *so; |
struct socket *so; |
register int error; |
int error; |
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int s; |
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if (proto) |
if (proto) |
prp = pffindproto(dom, proto, type); |
prp = pffindproto(dom, proto, type); |
Line 79 socreate(dom, aso, type, proto) |
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Line 94 socreate(dom, aso, type, proto) |
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return (EPROTONOSUPPORT); |
return (EPROTONOSUPPORT); |
if (prp->pr_type != type) |
if (prp->pr_type != type) |
return (EPROTOTYPE); |
return (EPROTOTYPE); |
MALLOC(so, struct socket *, sizeof(*so), M_SOCKET, M_WAIT); |
s = splsoftnet(); |
bzero((caddr_t)so, sizeof(*so)); |
so = pool_get(&socket_pool, PR_WAITOK); |
|
memset((caddr_t)so, 0, sizeof(*so)); |
TAILQ_INIT(&so->so_q0); |
TAILQ_INIT(&so->so_q0); |
TAILQ_INIT(&so->so_q); |
TAILQ_INIT(&so->so_q); |
so->so_type = type; |
so->so_type = type; |
so->so_proto = prp; |
so->so_proto = prp; |
so->so_send = sosend; |
so->so_send = sosend; |
so->so_receive = soreceive; |
so->so_receive = soreceive; |
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if (p != 0) |
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so->so_uid = p->p_ucred->cr_uid; |
error = (*prp->pr_usrreq)(so, PRU_ATTACH, (struct mbuf *)0, |
error = (*prp->pr_usrreq)(so, PRU_ATTACH, (struct mbuf *)0, |
(struct mbuf *)(long)proto, (struct mbuf *)0, p); |
(struct mbuf *)(long)proto, (struct mbuf *)0, p); |
if (error) { |
if (error) { |
so->so_state |= SS_NOFDREF; |
so->so_state |= SS_NOFDREF; |
sofree(so); |
sofree(so); |
|
splx(s); |
return (error); |
return (error); |
} |
} |
#ifdef COMPAT_SUNOS |
#ifdef COMPAT_SUNOS |
Line 101 socreate(dom, aso, type, proto) |
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Line 120 socreate(dom, aso, type, proto) |
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so->so_options |= SO_BROADCAST; |
so->so_options |= SO_BROADCAST; |
} |
} |
#endif |
#endif |
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splx(s); |
*aso = so; |
*aso = so; |
return (0); |
return (0); |
} |
} |
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int |
int |
sobind(so, nam) |
sobind(so, nam, p) |
struct socket *so; |
struct socket *so; |
struct mbuf *nam; |
struct mbuf *nam; |
|
struct proc *p; |
{ |
{ |
struct proc *p = curproc; /* XXX */ |
|
int s = splsoftnet(); |
int s = splsoftnet(); |
int error; |
int error; |
|
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int |
int |
solisten(so, backlog) |
solisten(so, backlog) |
register struct socket *so; |
struct socket *so; |
int backlog; |
int backlog; |
{ |
{ |
int s = splsoftnet(), error; |
int s = splsoftnet(), error; |
Line 137 solisten(so, backlog) |
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Line 157 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(so) |
register struct socket *so; |
struct socket *so; |
{ |
{ |
|
|
if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0) |
if (so->so_pcb || (so->so_state & SS_NOFDREF) == 0) |
return; |
return; |
if (so->so_head) { |
if (so->so_head) { |
if (!soqremque(so, 0) && !soqremque(so, 1)) |
/* |
panic("sofree dq"); |
* We must not decommission a socket that's on the accept(2) |
so->so_head = 0; |
* queue. If we do, then accept(2) may hang after select(2) |
|
* indicated that the listening socket was ready. |
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*/ |
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if (!soqremque(so, 0)) |
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return; |
} |
} |
sbrelease(&so->so_snd); |
sbrelease(&so->so_snd); |
sorflush(so); |
sorflush(so); |
FREE(so, M_SOCKET); |
pool_put(&socket_pool, so); |
} |
} |
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/* |
/* |
|
|
*/ |
*/ |
int |
int |
soclose(so) |
soclose(so) |
register struct socket *so; |
struct socket *so; |
{ |
{ |
|
struct socket *so2; |
int s = splsoftnet(); /* conservative */ |
int s = splsoftnet(); /* conservative */ |
int error = 0; |
int error = 0; |
|
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if (so->so_options & SO_ACCEPTCONN) { |
if (so->so_options & SO_ACCEPTCONN) { |
while (so->so_q0.tqh_first) |
while ((so2 = so->so_q0.tqh_first) != 0) { |
(void) soabort(so->so_q0.tqh_first); |
(void) soqremque(so2, 0); |
while (so->so_q.tqh_first) |
(void) soabort(so2); |
(void) soabort(so->so_q.tqh_first); |
} |
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while ((so2 = so->so_q.tqh_first) != 0) { |
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(void) soqremque(so2, 1); |
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(void) soabort(so2); |
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} |
} |
} |
if (so->so_pcb == 0) |
if (so->so_pcb == 0) |
goto discard; |
goto discard; |
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|
|
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int |
int |
soaccept(so, nam) |
soaccept(so, nam) |
register struct socket *so; |
struct socket *so; |
struct mbuf *nam; |
struct mbuf *nam; |
{ |
{ |
int s = splsoftnet(); |
int s = splsoftnet(); |
int error; |
int error = 0; |
|
|
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; |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, (struct mbuf *)0, |
if ((so->so_state & SS_ISDISCONNECTED) == 0) |
nam, (struct mbuf *)0, (struct proc *)0); |
error = (*so->so_proto->pr_usrreq)(so, PRU_ACCEPT, |
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(struct mbuf *)0, nam, (struct mbuf *)0, (struct proc *)0); |
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else |
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nam->m_len = 0; |
|
|
splx(s); |
splx(s); |
return (error); |
return (error); |
} |
} |
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int |
int |
soconnect(so, nam) |
soconnect(so, nam) |
register struct socket *so; |
struct socket *so; |
struct mbuf *nam; |
struct mbuf *nam; |
{ |
{ |
struct proc *p = curproc; /* XXX */ |
struct proc *p = curproc; /* XXX */ |
Line 275 soconnect(so, nam) |
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Line 308 soconnect(so, nam) |
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int |
int |
soconnect2(so1, so2) |
soconnect2(so1, so2) |
register struct socket *so1; |
struct socket *so1; |
struct socket *so2; |
struct socket *so2; |
{ |
{ |
int s = splsoftnet(); |
int s = splsoftnet(); |
Line 290 soconnect2(so1, so2) |
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Line 323 soconnect2(so1, so2) |
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|
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int |
int |
sodisconnect(so) |
sodisconnect(so) |
register struct socket *so; |
struct socket *so; |
{ |
{ |
int s = splsoftnet(); |
int s = splsoftnet(); |
int error; |
int error; |
|
|
*/ |
*/ |
int |
int |
sosend(so, addr, uio, top, control, flags) |
sosend(so, addr, uio, top, control, flags) |
register struct socket *so; |
struct socket *so; |
struct mbuf *addr; |
struct mbuf *addr; |
struct uio *uio; |
struct uio *uio; |
struct mbuf *top; |
struct mbuf *top; |
Line 340 sosend(so, addr, uio, top, control, flag |
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Line 373 sosend(so, addr, uio, top, control, flag |
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{ |
{ |
struct proc *p = curproc; /* XXX */ |
struct proc *p = curproc; /* XXX */ |
struct mbuf **mp; |
struct mbuf **mp; |
register struct mbuf *m; |
struct mbuf *m; |
register long space, len, resid; |
long space, len, resid; |
int clen = 0, error, s, dontroute, mlen; |
int clen = 0, error, s, dontroute, mlen; |
int atomic = sosendallatonce(so) || top; |
int atomic = sosendallatonce(so) || top; |
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|
|
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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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|
mp = ⊤ |
mp = ⊤ |
space -= clen; |
space -= clen; |
do { |
do { |
if (uio == NULL) { |
if (uio == NULL) { |
/* |
/* |
* Data is prepackaged in "top". |
* Data is prepackaged in "top". |
*/ |
*/ |
resid = 0; |
resid = 0; |
if (flags & MSG_EOR) |
if (flags & MSG_EOR) |
top->m_flags |= M_EOR; |
top->m_flags |= M_EOR; |
} else do { |
} else do { |
if (top == 0) { |
if (top == 0) { |
MGETHDR(m, M_WAIT, MT_DATA); |
MGETHDR(m, M_WAIT, MT_DATA); |
mlen = MHLEN; |
mlen = MHLEN; |
m->m_pkthdr.len = 0; |
m->m_pkthdr.len = 0; |
m->m_pkthdr.rcvif = (struct ifnet *)0; |
m->m_pkthdr.rcvif = (struct ifnet *)0; |
} else { |
} else { |
MGET(m, M_WAIT, MT_DATA); |
MGET(m, M_WAIT, MT_DATA); |
mlen = MLEN; |
mlen = MLEN; |
} |
} |
if (resid >= MINCLSIZE && space >= MCLBYTES) { |
if (resid >= MINCLSIZE && space >= MCLBYTES) { |
MCLGET(m, M_WAIT); |
MCLGET(m, M_WAIT); |
if ((m->m_flags & M_EXT) == 0) |
if ((m->m_flags & M_EXT) == 0) |
goto nopages; |
goto nopages; |
mlen = MCLBYTES; |
mlen = MCLBYTES; |
#ifdef MAPPED_MBUFS |
#ifdef MAPPED_MBUFS |
len = min(MCLBYTES, resid); |
|
#else |
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if (atomic && top == 0) { |
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len = min(MCLBYTES - max_hdr, resid); |
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m->m_data += max_hdr; |
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} else |
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len = min(MCLBYTES, resid); |
len = min(MCLBYTES, resid); |
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#else |
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if (atomic && top == 0) { |
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len = min(MCLBYTES - max_hdr, resid); |
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m->m_data += max_hdr; |
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} else |
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len = min(MCLBYTES, resid); |
#endif |
#endif |
space -= len; |
space -= len; |
} else { |
} else { |
nopages: |
nopages: |
len = min(min(mlen, resid), space); |
len = min(min(mlen, resid), space); |
space -= len; |
space -= len; |
/* |
/* |
* For datagram protocols, leave room |
* For datagram protocols, leave room |
* for protocol headers in first mbuf. |
* for protocol headers in first mbuf. |
*/ |
*/ |
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; |
top->m_pkthdr.len += len; |
top->m_pkthdr.len += len; |
|
if (error) |
|
goto release; |
|
mp = &m->m_next; |
|
if (resid <= 0) { |
|
if (flags & MSG_EOR) |
|
top->m_flags |= M_EOR; |
|
break; |
|
} |
|
} while (space > 0 && atomic); |
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|
|
s = splsoftnet(); |
|
|
|
if (so->so_state & SS_CANTSENDMORE) |
|
snderr(EPIPE); |
|
|
|
if (dontroute) |
|
so->so_options |= SO_DONTROUTE; |
|
if (resid > 0) |
|
so->so_state |= SS_MORETOCOME; |
|
error = (*so->so_proto->pr_usrreq)(so, |
|
(flags & MSG_OOB) ? PRU_SENDOOB : PRU_SEND, |
|
top, addr, control, p); |
|
if (dontroute) |
|
so->so_options &= ~SO_DONTROUTE; |
|
if (resid > 0) |
|
so->so_state &= ~SS_MORETOCOME; |
|
splx(s); |
|
|
|
clen = 0; |
|
control = 0; |
|
top = 0; |
|
mp = ⊤ |
if (error) |
if (error) |
goto release; |
goto release; |
mp = &m->m_next; |
|
if (resid <= 0) { |
|
if (flags & MSG_EOR) |
|
top->m_flags |= M_EOR; |
|
break; |
|
} |
|
} while (space > 0 && atomic); |
|
if (dontroute) |
|
so->so_options |= SO_DONTROUTE; |
|
s = splsoftnet(); /* XXX */ |
|
error = (*so->so_proto->pr_usrreq)(so, |
|
(flags & MSG_OOB) ? PRU_SENDOOB : PRU_SEND, |
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top, addr, control, p); |
|
splx(s); |
|
if (dontroute) |
|
so->so_options &= ~SO_DONTROUTE; |
|
clen = 0; |
|
control = 0; |
|
top = 0; |
|
mp = ⊤ |
|
if (error) |
|
goto release; |
|
} while (resid && space > 0); |
} while (resid && space > 0); |
} while (resid); |
} while (resid); |
|
|
|
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*/ |
*/ |
int |
int |
soreceive(so, paddr, uio, mp0, controlp, flagsp) |
soreceive(so, paddr, uio, mp0, controlp, flagsp) |
register struct socket *so; |
struct socket *so; |
struct mbuf **paddr; |
struct mbuf **paddr; |
struct uio *uio; |
struct uio *uio; |
struct mbuf **mp0; |
struct mbuf **mp0; |
struct mbuf **controlp; |
struct mbuf **controlp; |
int *flagsp; |
int *flagsp; |
{ |
{ |
register struct mbuf *m, **mp; |
struct mbuf *m, **mp; |
register int flags, len, error, s, offset; |
int flags, len, error, s, offset; |
struct protosw *pr = so->so_proto; |
struct protosw *pr = so->so_proto; |
struct mbuf *nextrecord; |
struct mbuf *nextrecord; |
int moff, type = 0; |
int moff, type = 0; |
int orig_resid = uio->uio_resid; |
int orig_resid = uio->uio_resid; |
|
int mbuf_removed = 0; |
|
|
mp = mp0; |
mp = mp0; |
if (paddr) |
if (paddr) |
|
|
m = m->m_next; |
m = m->m_next; |
} else { |
} else { |
sbfree(&so->so_rcv, m); |
sbfree(&so->so_rcv, m); |
|
mbuf_removed = 1; |
if (paddr) { |
if (paddr) { |
*paddr = m; |
*paddr = m; |
so->so_rcv.sb_mb = m->m_next; |
so->so_rcv.sb_mb = m->m_next; |
|
|
m = m->m_next; |
m = m->m_next; |
} else { |
} else { |
sbfree(&so->so_rcv, m); |
sbfree(&so->so_rcv, m); |
|
mbuf_removed = 1; |
if (controlp) { |
if (controlp) { |
if (pr->pr_domain->dom_externalize && |
if (pr->pr_domain->dom_externalize && |
mtod(m, struct cmsghdr *)->cmsg_type == |
mtod(m, struct cmsghdr *)->cmsg_type == |
SCM_RIGHTS) |
SCM_RIGHTS) |
error = (*pr->pr_domain->dom_externalize)(m); |
error = (*pr->pr_domain->dom_externalize)(m); |
*controlp = m; |
*controlp = m; |
so->so_rcv.sb_mb = m->m_next; |
so->so_rcv.sb_mb = m->m_next; |
m->m_next = 0; |
m->m_next = 0; |
|
|
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(); |
|
if (error) { |
|
/* |
|
* If any part of the record has been removed |
|
* (such as the MT_SONAME mbuf, which will |
|
* happen when PR_ADDR, and thus also |
|
* PR_ATOMIC, is set), then drop the entire |
|
* record to maintain the atomicity of the |
|
* receive operation. |
|
* |
|
* This avoids a later panic("receive 1a") |
|
* when compiled with DIAGNOSTIC. |
|
*/ |
|
if (m && mbuf_removed |
|
&& (pr->pr_flags & PR_ATOMIC)) |
|
(void) sbdroprecord(&so->so_rcv); |
|
|
|
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 829 soshutdown(so, how) |
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Line 897 soshutdown(so, how) |
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|
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void |
void |
sorflush(so) |
sorflush(so) |
register struct socket *so; |
struct socket *so; |
{ |
{ |
register struct sockbuf *sb = &so->so_rcv; |
struct sockbuf *sb = &so->so_rcv; |
register struct protosw *pr = so->so_proto; |
struct protosw *pr = so->so_proto; |
register int s; |
int s; |
struct sockbuf asb; |
struct sockbuf asb; |
|
|
sb->sb_flags |= SB_NOINTR; |
sb->sb_flags |= SB_NOINTR; |
|
|
socantrcvmore(so); |
socantrcvmore(so); |
sbunlock(sb); |
sbunlock(sb); |
asb = *sb; |
asb = *sb; |
bzero((caddr_t)sb, sizeof(*sb)); |
memset((caddr_t)sb, 0, sizeof(*sb)); |
splx(s); |
splx(s); |
if (pr->pr_flags & PR_RIGHTS && pr->pr_domain->dom_dispose) |
if (pr->pr_flags & PR_RIGHTS && pr->pr_domain->dom_dispose) |
(*pr->pr_domain->dom_dispose)(asb.sb_mb); |
(*pr->pr_domain->dom_dispose)(asb.sb_mb); |
|
|
|
|
int |
int |
sosetopt(so, level, optname, m0) |
sosetopt(so, level, optname, m0) |
register struct socket *so; |
struct socket *so; |
int level, optname; |
int level, optname; |
struct mbuf *m0; |
struct mbuf *m0; |
{ |
{ |
int error = 0; |
int error = 0; |
register struct mbuf *m = m0; |
struct mbuf *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) |
|
|
|
|
int |
int |
sogetopt(so, level, optname, mp) |
sogetopt(so, level, optname, mp) |
register struct socket *so; |
struct socket *so; |
int level, optname; |
int level, optname; |
struct mbuf **mp; |
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 1078 sogetopt(so, level, optname, mp) |
|
Line 1146 sogetopt(so, level, optname, mp) |
|
|
|
void |
void |
sohasoutofband(so) |
sohasoutofband(so) |
register struct socket *so; |
struct socket *so; |
{ |
{ |
struct proc *p; |
struct proc *p; |
|
|