/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* Please see the License for the specific language governing rights and
* limitations under the License.
*
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* Copyright (c) 1982, 1986, 1988, 1993
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/proc.h>
+#include <sys/domain.h>
#include <sys/protosw.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#if IPSEC
extern int ipsec_bypass;
+extern lck_mtx_t *sadb_mutex;
#endif
+extern u_long route_generation;
struct inpcbhead ripcb;
struct inpcbinfo ripcbinfo;
+/* control hooks for ipfw and dummynet */
+ip_fw_ctl_t *ip_fw_ctl_ptr;
+#if DUMMYNET
+ip_dn_ctl_t *ip_dn_ctl_ptr;
+#endif /* DUMMYNET */
+
/*
* Nominal space allocated to a raw ip socket.
*/
void
rip_init()
{
+ struct inpcbinfo *pcbinfo;
+
LIST_INIT(&ripcb);
ripcbinfo.listhead = &ripcb;
/*
(4096 * sizeof(struct inpcb)),
4096, "ripzone");
+ pcbinfo = &ripcbinfo;
+ /*
+ * allocate lock group attribute and group for udp pcb mutexes
+ */
+ pcbinfo->mtx_grp_attr = lck_grp_attr_alloc_init();
+
+ pcbinfo->mtx_grp = lck_grp_alloc_init("ripcb", pcbinfo->mtx_grp_attr);
+
+ /*
+ * allocate the lock attribute for udp pcb mutexes
+ */
+ pcbinfo->mtx_attr = lck_attr_alloc_init();
+
+ if ((pcbinfo->mtx = lck_rw_alloc_init(pcbinfo->mtx_grp, pcbinfo->mtx_attr)) == NULL)
+ return; /* pretty much dead if this fails... */
+
}
static struct sockaddr_in ripsrc = { sizeof(ripsrc), AF_INET };
register struct inpcb *inp;
struct inpcb *last = 0;
struct mbuf *opts = 0;
+ int skipit;
ripsrc.sin_addr = ip->ip_src;
+ lck_rw_lock_shared(ripcbinfo.mtx);
LIST_FOREACH(inp, &ripcb, inp_list) {
#if INET6
if ((inp->inp_vflag & INP_IPV4) == 0)
continue;
if (last) {
struct mbuf *n = m_copy(m, 0, (int)M_COPYALL);
-
+
#if IPSEC
/* check AH/ESP integrity. */
- if (ipsec_bypass == 0 && n && ipsec4_in_reject_so(n, last->inp_socket)) {
- m_freem(n);
- ipsecstat.in_polvio++;
- /* do not inject data to pcb */
- } else
+ skipit = 0;
+ if (ipsec_bypass == 0 && n) {
+ lck_mtx_lock(sadb_mutex);
+ if (ipsec4_in_reject_so(n, last->inp_socket)) {
+ m_freem(n);
+ ipsecstat.in_polvio++;
+ /* do not inject data to pcb */
+ skipit = 1;
+ }
+ lck_mtx_unlock(sadb_mutex);
+ }
#endif /*IPSEC*/
- if (n) {
+ if (n && skipit == 0) {
+ int error = 0;
if (last->inp_flags & INP_CONTROLOPTS ||
last->inp_socket->so_options & SO_TIMESTAMP)
ip_savecontrol(last, &opts, ip, n);
n->m_pkthdr.len -= iphlen;
n->m_data += iphlen;
}
+// ###LOCK need to lock that socket?
if (sbappendaddr(&last->inp_socket->so_rcv,
(struct sockaddr *)&ripsrc, n,
- opts) == 0) {
- /* should notify about lost packet */
- kprintf("rip_input can't append to socket\n");
- m_freem(n);
- if (opts)
- m_freem(opts);
- } else
+ opts, &error) != 0) {
sorwakeup(last->inp_socket);
+ }
+ else {
+ if (error) {
+ /* should notify about lost packet */
+ kprintf("rip_input can't append to socket\n");
+ }
+ }
opts = 0;
}
}
last = inp;
}
+ lck_rw_done(ripcbinfo.mtx);
#if IPSEC
/* check AH/ESP integrity. */
- if (ipsec_bypass == 0 && last && ipsec4_in_reject_so(m, last->inp_socket)) {
- m_freem(m);
- ipsecstat.in_polvio++;
- ipstat.ips_delivered--;
- /* do not inject data to pcb */
- } else
+ skipit = 0;
+ if (ipsec_bypass == 0 && last) {
+ lck_mtx_lock(sadb_mutex);
+ if (ipsec4_in_reject_so(m, last->inp_socket)) {
+ m_freem(m);
+ ipsecstat.in_polvio++;
+ ipstat.ips_delivered--;
+ /* do not inject data to pcb */
+ skipit = 1;
+ }
+ lck_mtx_unlock(sadb_mutex);
+ }
#endif /*IPSEC*/
- if (last) {
- if (last->inp_flags & INP_CONTROLOPTS ||
- last->inp_socket->so_options & SO_TIMESTAMP)
- ip_savecontrol(last, &opts, ip, m);
- if (last->inp_flags & INP_STRIPHDR) {
- m->m_len -= iphlen;
- m->m_pkthdr.len -= iphlen;
- m->m_data += iphlen;
- }
- if (sbappendaddr(&last->inp_socket->so_rcv,
- (struct sockaddr *)&ripsrc, m, opts) == 0) {
- kprintf("rip_input(2) can't append to socket\n");
+ if (skipit == 0) {
+ if (last) {
+ if (last->inp_flags & INP_CONTROLOPTS ||
+ last->inp_socket->so_options & SO_TIMESTAMP)
+ ip_savecontrol(last, &opts, ip, m);
+ if (last->inp_flags & INP_STRIPHDR) {
+ m->m_len -= iphlen;
+ m->m_pkthdr.len -= iphlen;
+ m->m_data += iphlen;
+ }
+ if (sbappendaddr(&last->inp_socket->so_rcv,
+ (struct sockaddr *)&ripsrc, m, opts, NULL) != 0) {
+ sorwakeup(last->inp_socket);
+ } else {
+ kprintf("rip_input(2) can't append to socket\n");
+ }
+ } else {
m_freem(m);
- if (opts)
- m_freem(opts);
- } else
- sorwakeup(last->inp_socket);
- } else {
- m_freem(m);
- ipstat.ips_noproto++;
- ipstat.ips_delivered--;
+ ipstat.ips_noproto++;
+ ipstat.ips_delivered--;
+ }
}
}
}
#endif /*IPSEC*/
- return (ip_output(m, inp->inp_options, &inp->inp_route, flags,
+ if (inp->inp_route.ro_rt && inp->inp_route.ro_rt->generation_id != route_generation) {
+ rtfree(inp->inp_route.ro_rt);
+ inp->inp_route.ro_rt = (struct rtentry *)0;
+ }
+
+ return (ip_output_list(m, 0, inp->inp_options, &inp->inp_route, flags,
inp->inp_moptions));
}
+extern int
+load_ipfw()
+{
+ kern_return_t err;
+
+ ipfw_init();
+
+#if DUMMYNET
+ if (!DUMMYNET_LOADED)
+ ip_dn_init();
+#endif /* DUMMYNET */
+ err = 0;
+
+ return err == 0 && ip_fw_ctl_ptr == NULL ? -1 : err;
+}
+
/*
* Raw IP socket option processing.
*/
case IP_OLD_FW_ADD:
case IP_OLD_FW_GET:
if (ip_fw_ctl_ptr == 0)
- error = ENOPROTOOPT;
- else
+ error = load_ipfw();
+ if (ip_fw_ctl_ptr && error == 0)
error = ip_fw_ctl_ptr(sopt);
+ else
+ error = ENOPROTOOPT;
break;
#if DUMMYNET
case IP_DUMMYNET_GET:
- if (ip_dn_ctl_ptr == NULL)
- error = ENOPROTOOPT ;
- else
+ if (DUMMYNET_LOADED)
error = ip_dn_ctl_ptr(sopt);
+ else
+ error = ENOPROTOOPT;
break ;
#endif /* DUMMYNET */
case IP_OLD_FW_ZERO:
case IP_OLD_FW_RESETLOG:
if (ip_fw_ctl_ptr == 0)
- error = ENOPROTOOPT;
- else
+ error = load_ipfw();
+ if (ip_fw_ctl_ptr && error == 0)
error = ip_fw_ctl_ptr(sopt);
+ else
+ error = ENOPROTOOPT;
break;
#if DUMMYNET
case IP_DUMMYNET_CONFIGURE:
case IP_DUMMYNET_DEL:
case IP_DUMMYNET_FLUSH:
- if (ip_dn_ctl_ptr == NULL)
- error = ENOPROTOOPT ;
- else
+ if (DUMMYNET_LOADED)
error = ip_dn_ctl_ptr(sopt);
+ else
+ error = ENOPROTOOPT ;
break ;
#endif
switch (cmd) {
case PRC_IFDOWN:
+ lck_mtx_lock(rt_mtx);
for (ia = in_ifaddrhead.tqh_first; ia;
ia = ia->ia_link.tqe_next) {
if (ia->ia_ifa.ifa_addr == sa
/*
* in_ifscrub kills the interface route.
*/
- in_ifscrub(ia->ia_ifp, ia);
+ in_ifscrub(ia->ia_ifp, ia, 1);
/*
* in_ifadown gets rid of all the rest of
* the routes. This is not quite the right
break;
}
}
+ lck_mtx_unlock(rt_mtx);
break;
case PRC_IFUP:
+ lck_mtx_lock(rt_mtx);
for (ia = in_ifaddrhead.tqh_first; ia;
ia = ia->ia_link.tqe_next) {
if (ia->ia_ifa.ifa_addr == sa)
break;
}
- if (ia == 0 || (ia->ia_flags & IFA_ROUTE))
+ if (ia == 0 || (ia->ia_flags & IFA_ROUTE)) {
+ lck_mtx_unlock(rt_mtx);
return;
+ }
flags = RTF_UP;
ifp = ia->ia_ifa.ifa_ifp;
|| (ifp->if_flags & IFF_POINTOPOINT))
flags |= RTF_HOST;
- err = rtinit(&ia->ia_ifa, RTM_ADD, flags);
+ err = rtinit_locked(&ia->ia_ifa, RTM_ADD, flags);
+ lck_mtx_unlock(rt_mtx);
if (err == 0)
ia->ia_flags |= IFA_ROUTE;
break;
{
struct inpcb *inp = sotoinpcb(so);
struct sockaddr_in *addr = (struct sockaddr_in *)nam;
+ struct ifaddr *ifa = NULL;
if (nam->sa_len != sizeof(*addr))
return EINVAL;
- if (TAILQ_EMPTY(&ifnet) || ((addr->sin_family != AF_INET) &&
+ if (TAILQ_EMPTY(&ifnet_head) || ((addr->sin_family != AF_INET) &&
(addr->sin_family != AF_IMPLINK)) ||
(addr->sin_addr.s_addr &&
- ifa_ifwithaddr((struct sockaddr *)addr) == 0))
+ (ifa = ifa_ifwithaddr((struct sockaddr *)addr)) == 0)) {
return EADDRNOTAVAIL;
+ }
+ else if (ifa) {
+ ifafree(ifa);
+ ifa = NULL;
+ }
inp->inp_laddr = addr->sin_addr;
return 0;
}
if (nam->sa_len != sizeof(*addr))
return EINVAL;
- if (TAILQ_EMPTY(&ifnet))
+ if (TAILQ_EMPTY(&ifnet_head))
return EADDRNOTAVAIL;
if ((addr->sin_family != AF_INET) &&
(addr->sin_family != AF_IMPLINK))
return rip_output(m, so, dst);
}
+/* note: rip_unlock is called from different protos instead of the generic socket_unlock,
+ * it will handle the socket dealloc on last reference
+ * */
+int
+rip_unlock(struct socket *so, int refcount, int debug)
+{
+ int lr_saved;
+ struct inpcb *inp = sotoinpcb(so);
+
+ if (debug == 0)
+ lr_saved = (unsigned int) __builtin_return_address(0);
+ else lr_saved = debug;
+
+ if (refcount) {
+ if (so->so_usecount <= 0)
+ panic("rip_unlock: bad refoucnt so=%x val=%x\n", so, so->so_usecount);
+ so->so_usecount--;
+ if (so->so_usecount == 0 && (inp->inp_wantcnt == WNT_STOPUSING)) {
+ /* cleanup after last reference */
+ lck_mtx_unlock(so->so_proto->pr_domain->dom_mtx);
+ lck_rw_lock_exclusive(ripcbinfo.mtx);
+ in_pcbdispose(inp);
+ lck_rw_done(ripcbinfo.mtx);
+ return(0);
+ }
+ }
+ so->unlock_lr[so->next_unlock_lr] = (u_int *)lr_saved;
+ so->next_unlock_lr = (so->next_unlock_lr+1) % SO_LCKDBG_MAX;
+ lck_mtx_unlock(so->so_proto->pr_domain->dom_mtx);
+ return(0);
+}
+
static int
rip_pcblist SYSCTL_HANDLER_ARGS
{
* The process of preparing the TCB list is too time-consuming and
* resource-intensive to repeat twice on every request.
*/
- if (req->oldptr == 0) {
+ lck_rw_lock_exclusive(ripcbinfo.mtx);
+ if (req->oldptr == USER_ADDR_NULL) {
n = ripcbinfo.ipi_count;
req->oldidx = 2 * (sizeof xig)
+ (n + n/8) * sizeof(struct xinpcb);
+ lck_rw_done(ripcbinfo.mtx);
return 0;
}
- if (req->newptr != 0)
+ if (req->newptr != USER_ADDR_NULL) {
+ lck_rw_done(ripcbinfo.mtx);
return EPERM;
+ }
/*
* OK, now we're committed to doing something.
*/
- s = splnet();
gencnt = ripcbinfo.ipi_gencnt;
n = ripcbinfo.ipi_count;
- splx(s);
-
+
+ bzero(&xig, sizeof(xig));
xig.xig_len = sizeof xig;
xig.xig_count = n;
xig.xig_gen = gencnt;
xig.xig_sogen = so_gencnt;
error = SYSCTL_OUT(req, &xig, sizeof xig);
- if (error)
+ if (error) {
+ lck_rw_done(ripcbinfo.mtx);
return error;
+ }
/*
* We are done if there is no pcb
*/
- if (n == 0)
+ if (n == 0) {
+ lck_rw_done(ripcbinfo.mtx);
return 0;
+ }
inp_list = _MALLOC(n * sizeof *inp_list, M_TEMP, M_WAITOK);
- if (inp_list == 0)
+ if (inp_list == 0) {
+ lck_rw_done(ripcbinfo.mtx);
return ENOMEM;
+ }
- s = splnet();
for (inp = ripcbinfo.listhead->lh_first, i = 0; inp && i < n;
inp = inp->inp_list.le_next) {
- if (inp->inp_gencnt <= gencnt)
+ if (inp->inp_gencnt <= gencnt && inp->inp_state != INPCB_STATE_DEAD)
inp_list[i++] = inp;
}
- splx(s);
n = i;
error = 0;
for (i = 0; i < n; i++) {
inp = inp_list[i];
- if (inp->inp_gencnt <= gencnt) {
+ if (inp->inp_gencnt <= gencnt && inp->inp_state != INPCB_STATE_DEAD) {
struct xinpcb xi;
+
+ bzero(&xi, sizeof(xi));
xi.xi_len = sizeof xi;
/* XXX should avoid extra copy */
- bcopy(inp, &xi.xi_inp, sizeof *inp);
+ inpcb_to_compat(inp, &xi.xi_inp);
if (inp->inp_socket)
sotoxsocket(inp->inp_socket, &xi.xi_socket);
error = SYSCTL_OUT(req, &xi, sizeof xi);
* while we were processing this request, and it
* might be necessary to retry.
*/
- s = splnet();
+ bzero(&xig, sizeof(xig));
+ xig.xig_len = sizeof xig;
xig.xig_gen = ripcbinfo.ipi_gencnt;
xig.xig_sogen = so_gencnt;
xig.xig_count = ripcbinfo.ipi_count;
- splx(s);
error = SYSCTL_OUT(req, &xig, sizeof xig);
}
FREE(inp_list, M_TEMP);
+ lck_rw_done(ripcbinfo.mtx);
return error;
}
pru_connect2_notsupp, in_control, rip_detach, rip_disconnect,
pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp,
pru_rcvoob_notsupp, rip_send, pru_sense_null, rip_shutdown,
- in_setsockaddr, sosend, soreceive, sopoll
+ in_setsockaddr, sosend, soreceive, pru_sopoll_notsupp
};
projects / apple / xnu.git / blobdiff