/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2019 Apple 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
* 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
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
- *
+ *
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* $FreeBSD: src/sys/netinet/ip_divert.c,v 1.98 2004/08/17 22:05:54 andre Exp $
*/
-#ifndef INET
+#if !INET
#error "IPDIVERT requires INET."
#endif
#include <sys/systm.h>
#include <sys/proc.h>
+#include <machine/endian.h>
#include <net/if.h>
#include <net/route.h>
+#include <net/kpi_protocol.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip_divert.h>
#include <kern/zalloc.h>
+#include <libkern/OSAtomic.h>
/*
* Divert sockets
/*
* Allocate enough space to hold a full IP packet
*/
-#define DIVSNDQ (65536 + 100)
-#define DIVRCVQ (65536 + 100)
+#define DIVSNDQ (65536 + 100)
+#define DIVRCVQ (65536 + 100)
/*
* Divert sockets work in conjunction with ipfw, see the divert(4)
static struct inpcbhead divcb;
static struct inpcbinfo divcbinfo;
-static u_long div_sendspace = DIVSNDQ; /* XXX sysctl ? */
-static u_long div_recvspace = DIVRCVQ; /* XXX sysctl ? */
+static u_int32_t div_sendspace = DIVSNDQ; /* XXX sysctl ? */
+static u_int32_t div_recvspace = DIVRCVQ; /* XXX sysctl ? */
/* Optimization: have this preinitialized */
-static struct sockaddr_in divsrc = { sizeof(divsrc), AF_INET, };
+static struct sockaddr_in divsrc = {
+ .sin_len = sizeof(divsrc),
+ .sin_family = AF_INET,
+ .sin_port = 0,
+ .sin_addr = { .s_addr = 0 },
+ .sin_zero = { 0, 0, 0, 0, 0, 0, 0, 0 }
+};
/* Internal functions */
static int div_output(struct socket *so,
- struct mbuf *m, struct sockaddr *addr, struct mbuf *control);
+ struct mbuf *m, struct sockaddr_in *addr, struct mbuf *control);
extern int load_ipfw(void);
/*
* Initialize divert connection block queue.
*/
void
-div_init(void)
+div_init(struct protosw *pp, struct domain *dp)
{
+#pragma unused(dp)
+ static int div_initialized = 0;
struct inpcbinfo *pcbinfo;
+
+ VERIFY((pp->pr_flags & (PR_INITIALIZED | PR_ATTACHED)) == PR_ATTACHED);
+
+ if (div_initialized) {
+ return;
+ }
+ div_initialized = 1;
+
LIST_INIT(&divcb);
- divcbinfo.listhead = &divcb;
+ divcbinfo.ipi_listhead = &divcb;
/*
* XXX We don't use the hash list for divert IP, but it's easier
* to allocate a one entry hash list than it is to check all
- * over the place for hashbase == NULL.
+ * over the place for ipi_hashbase == NULL.
*/
- divcbinfo.hashbase = hashinit(1, M_PCB, &divcbinfo.hashmask);
- divcbinfo.porthashbase = hashinit(1, M_PCB, &divcbinfo.porthashmask);
- divcbinfo.ipi_zone = (void *) zinit(sizeof(struct inpcb),(maxsockets * sizeof(struct inpcb)),
- 4096, "divzone");
+ divcbinfo.ipi_hashbase = hashinit(1, M_PCB, &divcbinfo.ipi_hashmask);
+ divcbinfo.ipi_porthashbase = hashinit(1, M_PCB, &divcbinfo.ipi_porthashmask);
+ divcbinfo.ipi_zone = zinit(sizeof(struct inpcb), (512 * sizeof(struct inpcb)),
+ 4096, "divzone");
pcbinfo = &divcbinfo;
- /*
+ /*
* allocate lock group attribute and group for udp pcb mutexes
*/
- pcbinfo->mtx_grp_attr = lck_grp_attr_alloc_init();
+ pcbinfo->ipi_lock_grp_attr = lck_grp_attr_alloc_init();
+
+ pcbinfo->ipi_lock_grp = lck_grp_alloc_init("divcb", pcbinfo->ipi_lock_grp_attr);
- pcbinfo->mtx_grp = lck_grp_alloc_init("divcb", pcbinfo->mtx_grp_attr);
-
/*
* allocate the lock attribute for divert pcb mutexes
*/
- pcbinfo->mtx_attr = lck_attr_alloc_init();
- lck_attr_setdefault(pcbinfo->mtx_attr);
+ pcbinfo->ipi_lock_attr = lck_attr_alloc_init();
+
+ if ((pcbinfo->ipi_lock = lck_rw_alloc_init(pcbinfo->ipi_lock_grp,
+ pcbinfo->ipi_lock_attr)) == NULL) {
+ panic("%s: unable to allocate PCB lock\n", __func__);
+ /* NOTREACHED */
+ }
- if ((pcbinfo->mtx = lck_rw_alloc_init(pcbinfo->mtx_grp, pcbinfo->mtx_attr)) == NULL)
- return; /* pretty much dead if this fails... */
+ in_pcbinfo_attach(&divcbinfo);
+#if IPFIREWALL
if (!IPFW_LOADED) {
load_ipfw();
}
+#endif
}
/*
void
div_input(struct mbuf *m, __unused int off)
{
- ipstat.ips_noproto++;
+ OSAddAtomic(1, &ipstat.ips_noproto);
m_freem(m);
}
*
* Setup generic address and protocol structures for div_input routine,
* then pass them along with mbuf chain.
- * ###LOCK called in ip_mutex from ip_output/ip_input
*/
void
divert_packet(struct mbuf *m, int incoming, int port, int rule)
/* Sanity check */
KASSERT(port != 0, ("%s: port=0", __FUNCTION__));
- divsrc.sin_port = rule; /* record matching rule */
+ divsrc.sin_port = rule; /* record matching rule */
/* Assure header */
if (m->m_len < sizeof(struct ip) &&
/* Find IP address for receive interface */
ifnet_lock_shared(m->m_pkthdr.rcvif);
TAILQ_FOREACH(ifa, &m->m_pkthdr.rcvif->if_addrhead, ifa_link) {
- if (ifa->ifa_addr == NULL)
- continue;
- if (ifa->ifa_addr->sa_family != AF_INET)
+ IFA_LOCK(ifa);
+ if (ifa->ifa_addr->sa_family != AF_INET) {
+ IFA_UNLOCK(ifa);
continue;
+ }
divsrc.sin_addr =
- ((struct sockaddr_in *) ifa->ifa_addr)->sin_addr;
+ ((struct sockaddr_in *)(void *) ifa->ifa_addr)->sin_addr;
+ IFA_UNLOCK(ifa);
break;
}
ifnet_lock_done(m->m_pkthdr.rcvif);
bzero(&divsrc.sin_zero, sizeof(divsrc.sin_zero));
if (m->m_pkthdr.rcvif) {
/*
- * Hide the actual interface name in there in the
+ * Hide the actual interface name in there in the
* sin_zero array. XXX This needs to be moved to a
* different sockaddr type for divert, e.g.
- * sockaddr_div with multiple fields like
+ * sockaddr_div with multiple fields like
* sockaddr_dl. Presently we have only 7 bytes
* but that will do for now as most interfaces
* are 4 or less + 2 or less bytes for unit.
* and re-uses the sockaddr_in as suggested in the man pages,
* this iface name will come along for the ride.
* (see div_output for the other half of this.)
- */
+ */
snprintf(divsrc.sin_zero, sizeof(divsrc.sin_zero),
- "%s%d", m->m_pkthdr.rcvif->if_name,
- m->m_pkthdr.rcvif->if_unit);
+ "%s", if_name(m->m_pkthdr.rcvif));
}
/* Put packet on socket queue, if any */
sa = NULL;
nport = htons((u_int16_t)port);
- lck_rw_lock_shared(divcbinfo.mtx);
+ lck_rw_lock_shared(divcbinfo.ipi_lock);
LIST_FOREACH(inp, &divcb, inp_list) {
- if (inp->inp_lport == nport)
+ if (inp->inp_lport == nport) {
sa = inp->inp_socket;
+ }
}
if (sa) {
int error = 0;
-
+
socket_lock(sa, 1);
if (sbappendaddr(&sa->so_rcv, (struct sockaddr *)&divsrc,
- m, (struct mbuf *)0, &error) != 0)
+ m, (struct mbuf *)0, &error) != 0) {
sorwakeup(sa);
+ }
socket_unlock(sa, 1);
} else {
m_freem(m);
- ipstat.ips_noproto++;
- ipstat.ips_delivered--;
- }
- lck_rw_done(divcbinfo.mtx);
+ OSAddAtomic(1, &ipstat.ips_noproto);
+ OSAddAtomic(-1, &ipstat.ips_delivered);
+ }
+ lck_rw_done(divcbinfo.ipi_lock);
}
/*
* If no address specified, or address is 0.0.0.0, send to ip_output();
* otherwise, send to ip_input() and mark as having been received on
* the interface with that address.
- * ###LOCK called in inet_proto mutex when from div_send.
+ * ###LOCK called in inet_proto mutex when from div_send.
*/
static int
-div_output(so, m, addr, control)
- struct socket *so;
- register struct mbuf *m;
- struct sockaddr *addr;
- struct mbuf *control;
+div_output(struct socket *so, struct mbuf *m, struct sockaddr_in *sin,
+ struct mbuf *control)
{
- register struct inpcb *const inp = sotoinpcb(so);
- register struct ip *const ip = mtod(m, struct ip *);
- struct sockaddr_in *sin = (struct sockaddr_in *)addr;
+ struct inpcb *const inp = sotoinpcb(so);
+ struct ip *const ip = mtod(m, struct ip *);
int error = 0;
+ int sotc = SO_TC_UNSPEC;
- if (control)
- m_freem(control); /* XXX */
+ if (control != NULL) {
+ int ignored;
+
+ (void) so_tc_from_control(contro, &sotc, &ignored);
+
+ m_freem(control); /* XXX */
+ control = NULL;
+ }
+ if (sotc == SO_TC_UNSPEC) {
+ sotc = so->so_traffic_class;
+ }
/* Loopback avoidance and state recovery */
if (sin) {
struct m_tag *mtag;
struct divert_tag *dt;
- int len = 0;
- char *c = sin->sin_zero;
+ int len = 0;
+ char *c = sin->sin_zero;
- mtag = m_tag_alloc(KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_DIVERT,
- sizeof(struct divert_tag), M_NOWAIT);
+ mtag = m_tag_create(KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_DIVERT,
+ sizeof(struct divert_tag), M_NOWAIT, m);
if (mtag == NULL) {
error = ENOBUFS;
goto cantsend;
}
- dt = (struct divert_tag *)(mtag+1);
+ dt = (struct divert_tag *)(mtag + 1);
dt->info = 0;
dt->cookie = sin->sin_port;
m_tag_prepend(m, mtag);
/*
* Find receive interface with the given name or IP address.
- * The name is user supplied data so don't trust it's size or
+ * The name is user supplied data so don't trust it's size or
* that it is zero terminated. The name has priority.
- * We are presently assuming that the sockaddr_in
+ * We are presently assuming that the sockaddr_in
* has not been replaced by a sockaddr_div, so we limit it
* to 16 bytes in total. the name is stuffed (if it exists)
* in the sin_zero[] field.
*/
- while (*c++ && (len++ < sizeof(sin->sin_zero)));
- if ((len > 0) && (len < sizeof(sin->sin_zero)))
+ while (*c++ && (len++ < sizeof(sin->sin_zero))) {
+ ;
+ }
+ if ((len > 0) && (len < sizeof(sin->sin_zero))) {
m->m_pkthdr.rcvif = ifunit(sin->sin_zero);
+ }
}
/* Reinject packet into the system as incoming or outgoing */
if (!sin || sin->sin_addr.s_addr == 0) {
+ struct ip_out_args ipoa;
+ struct route ro;
+ struct ip_moptions *imo;
+
+ bzero(&ipoa, sizeof(ipoa));
+ ipoa.ipoa_boundif = IFSCOPE_NONE;
+ ipoa.ipoa_flags = IPOAF_SELECT_SRCIF;
+ ipoa.ipoa_sotc = SO_TC_UNSPEC;
+ ipoa.ipoa_netsvctype = _NET_SERVICE_TYPE_UNSPEC;
+
/*
* Don't allow both user specified and setsockopt options,
* and don't allow packet length sizes that will crash
*/
- if (((ip->ip_hl != (sizeof (*ip) >> 2)) && inp->inp_options) ||
- ((u_short)ntohs(ip->ip_len) > m->m_pkthdr.len)) {
+ if (((ip->ip_hl != (sizeof(*ip) >> 2)) && inp->inp_options) ||
+ ((u_short)ntohs(ip->ip_len) > m->m_pkthdr.len)) {
error = EINVAL;
goto cantsend;
}
/* Convert fields to host order for ip_output() */
+#if BYTE_ORDER != BIG_ENDIAN
NTOHS(ip->ip_len);
NTOHS(ip->ip_off);
+#endif
- /* Send packet to output processing */
- ipstat.ips_rawout++; /* XXX */
+ OSAddAtomic(1, &ipstat.ips_rawout);
+ /* Copy the cached route and take an extra reference */
+ inp_route_copyout(inp, &ro);
+
+ if (sotc != SO_TC_UNSPEC) {
+ ipoa.ipoa_flags |= IPOAF_QOSMARKING_ALLOWED;
+ ipoa.ipoa_sotc = sotc;
+ }
+ set_packet_service_class(m, so, sotc, 0);
+
+ imo = inp->inp_moptions;
+ if (imo != NULL) {
+ IMO_ADDREF(imo);
+ }
socket_unlock(so, 0);
- error = ip_output(m,
- inp->inp_options, &inp->inp_route,
- (so->so_options & SO_DONTROUTE) |
- IP_ALLOWBROADCAST | IP_RAWOUTPUT,
- inp->inp_moptions);
+#if CONFIG_MACF_NET
+ mac_mbuf_label_associate_inpcb(inp, m);
+#endif
+ /* Send packet to output processing */
+ error = ip_output(m, inp->inp_options, &ro,
+ (so->so_options & SO_DONTROUTE) |
+ IP_ALLOWBROADCAST | IP_RAWOUTPUT | IP_OUTARGS,
+ imo, &ipoa);
+
socket_lock(so, 0);
+ if (imo != NULL) {
+ IMO_REMREF(imo);
+ }
+ /* Synchronize cached PCB route */
+ inp_route_copyin(inp, &ro);
} else {
- struct ifaddr *ifa;
+ struct ifaddr *ifa;
/* If no luck with the name above. check by IP address. */
if (m->m_pkthdr.rcvif == NULL) {
+ struct sockaddr_in _sin;
/*
- * Make sure there are no distractions
- * for ifa_ifwithaddr. Clear the port and the ifname.
- * Maybe zap all 8 bytes at once using a 64bit write?
+ * Make sure there are no distractions for
+ * ifa_ifwithaddr; use sanitized version.
*/
- bzero(sin->sin_zero, sizeof(sin->sin_zero));
- /* *((u_int64_t *)sin->sin_zero) = 0; */ /* XXX ?? */
- sin->sin_port = 0;
- if (!(ifa = ifa_ifwithaddr((struct sockaddr *) sin))) {
+ bzero(&_sin, sizeof(_sin));
+ _sin.sin_family = AF_INET;
+ _sin.sin_len = sizeof(struct sockaddr_in);
+ _sin.sin_addr.s_addr = sin->sin_addr.s_addr;
+ if (!(ifa = ifa_ifwithaddr(SA(&_sin)))) {
error = EADDRNOTAVAIL;
goto cantsend;
}
m->m_pkthdr.rcvif = ifa->ifa_ifp;
- ifafree(ifa);
- }
-
- if ((~IF_HWASSIST_CSUM_FLAGS(m->m_pkthdr.rcvif->if_hwassist) &
- m->m_pkthdr.csum_flags) == 0) {
- if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA) {
- m->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA;
- }
- m->m_pkthdr.csum_flags |=
- CSUM_DATA_VALID | CSUM_PSEUDO_HDR |
- CSUM_IP_CHECKED | CSUM_IP_VALID;
- m->m_pkthdr.csum_data = 0xffff;
+ IFA_REMREF(ifa);
}
- else if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA) {
- int hlen;
-
-#ifdef _IP_VHL
- hlen = IP_VHL_HL(ip->ip_vhl) << 2;
-#else
- hlen = ip->ip_hl << 2;
+#if CONFIG_MACF_NET
+ mac_mbuf_label_associate_socket(so, m);
#endif
- in_delayed_cksum(m);
- m->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA;
- ip->ip_sum = in_cksum(m, hlen);
- }
-
/* Send packet to input processing */
proto_inject(PF_INET, m);
}
inp = sotoinpcb(so);
- if (inp)
+ if (inp) {
panic("div_attach");
- if (p && (error = proc_suser(p)) != 0)
+ }
+ if ((error = proc_suser(p)) != 0) {
return error;
+ }
error = soreserve(so, div_sendspace, div_recvspace);
- if (error)
+ if (error) {
return error;
+ }
error = in_pcballoc(so, &divcbinfo, p);
- if (error)
+ if (error) {
return error;
+ }
inp = (struct inpcb *)so->so_pcb;
inp->inp_ip_p = proto;
inp->inp_vflag |= INP_IPV4;
inp->inp_flags |= INP_HDRINCL;
/* The socket is always "connected" because
- we always know "where" to send the packet */
+ * we always know "where" to send the packet */
so->so_state |= SS_ISCONNECTED;
#ifdef MORE_DICVLOCK_DEBUG
- printf("div_attach: so=%x sopcb=%x lock=%x ref=%x\n",
- so, so->so_pcb, ((struct inpcb *)so->so_pcb)->inpcb_mtx, so->so_usecount);
+ printf("div_attach: so=0x%llx sopcb=0x%llx lock=0x%llx ref=%x\n",
+ (uint64_t)VM_KERNEL_ADDRPERM(so),
+ (uint64_t)VM_KERNEL_ADDRPERM(so->so_pcb),
+ (uint64_t)VM_KERNEL_ADDRPERM(&(sotoinpcb(so)->inpcb_mtx)),
+ so->so_usecount);
#endif
return 0;
}
struct inpcb *inp;
#ifdef MORE_DICVLOCK_DEBUG
- printf("div_detach: so=%x sopcb=%x lock=%x ref=%x\n",
- so, so->so_pcb, ((struct inpcb *)so->so_pcb)->inpcb_mtx, so->so_usecount);
+ printf("div_detach: so=0x%llx sopcb=0x%llx lock=0x%llx ref=%x\n",
+ (uint64_t)VM_KERNEL_ADDRPERM(so),
+ (uint64_t)VM_KERNEL_ADDRPERM(so->so_pcb),
+ (uint64_t)VM_KERNEL_ADDRPERM(&(sotoinpcb(so)->inpcb_mtx)),
+ so->so_usecount);
#endif
inp = sotoinpcb(so);
- if (inp == 0)
- panic("div_detach: so=%x null inp\n", so);
+ if (inp == 0) {
+ panic("div_detach: so=%p null inp\n", so);
+ }
in_pcbdetach(inp);
inp->inp_state = INPCB_STATE_DEAD;
return 0;
static int
div_disconnect(struct socket *so)
{
- if ((so->so_state & SS_ISCONNECTED) == 0)
+ if ((so->so_state & SS_ISCONNECTED) == 0) {
return ENOTCONN;
+ }
return div_abort(so);
}
inp = sotoinpcb(so);
/* in_pcbbind assumes that the socket is a sockaddr_in
- * and in_pcbbind requires a valid address. Since divert
- * sockets don't we need to make sure the address is
- * filled in properly.
- * XXX -- divert should not be abusing in_pcbind
- * and should probably have its own family.
- */
+ * and in_pcbbind requires a valid address. Since divert
+ * sockets don't we need to make sure the address is
+ * filled in properly.
+ * XXX -- divert should not be abusing in_pcbind
+ * and should probably have its own family.
+ */
if (nam->sa_family != AF_INET) {
error = EAFNOSUPPORT;
} else {
- ((struct sockaddr_in *)nam)->sin_addr.s_addr = INADDR_ANY;
+ ((struct sockaddr_in *)(void *)nam)->sin_addr.s_addr = INADDR_ANY;
error = in_pcbbind(inp, nam, p);
}
return error;
static int
div_send(struct socket *so, __unused int flags, struct mbuf *m, struct sockaddr *nam,
- struct mbuf *control, __unused struct proc *p)
+ struct mbuf *control, __unused struct proc *p)
{
/* Packet must have a header (but that's about it) */
- if (m->m_len < sizeof (struct ip) &&
- (m = m_pullup(m, sizeof (struct ip))) == 0) {
- ipstat.ips_toosmall++;
+ if (m->m_len < sizeof(struct ip) &&
+ (m = m_pullup(m, sizeof(struct ip))) == 0) {
+ OSAddAtomic(1, &ipstat.ips_toosmall);
m_freem(m);
return EINVAL;
}
/* Send packet */
- return div_output(so, m, nam, control);
+ return div_output(so, m, SIN(nam), control);
}
+#if 0
static int
div_pcblist SYSCTL_HANDLER_ARGS
{
+#pragma unused(oidp, arg1, arg2)
int error, i, n;
struct inpcb *inp, **inp_list;
inp_gen_t gencnt;
* The process of preparing the TCB list is too time-consuming and
* resource-intensive to repeat twice on every request.
*/
- lck_rw_lock_exclusive(divcbinfo.mtx);
+ lck_rw_lock_exclusive(divcbinfo.ipi_lock);
if (req->oldptr == USER_ADDR_NULL) {
n = divcbinfo.ipi_count;
req->oldidx = 2 * (sizeof xig)
- + (n + n/8) * sizeof(struct xinpcb);
- lck_rw_done(divcbinfo.mtx);
+ + (n + n / 8) * sizeof(struct xinpcb);
+ lck_rw_done(divcbinfo.ipi_lock);
return 0;
}
if (req->newptr != USER_ADDR_NULL) {
- lck_rw_done(divcbinfo.mtx);
+ lck_rw_done(divcbinfo.ipi_lock);
return EPERM;
}
xig.xig_sogen = so_gencnt;
error = SYSCTL_OUT(req, &xig, sizeof xig);
if (error) {
- lck_rw_done(divcbinfo.mtx);
+ lck_rw_done(divcbinfo.ipi_lock);
return error;
}
inp_list = _MALLOC(n * sizeof *inp_list, M_TEMP, M_WAITOK);
if (inp_list == 0) {
- lck_rw_done(divcbinfo.mtx);
+ lck_rw_done(divcbinfo.ipi_lock);
return ENOMEM;
}
-
- for (inp = LIST_FIRST(divcbinfo.listhead), i = 0; inp && i < n;
- inp = LIST_NEXT(inp, inp_list)) {
+
+ for (inp = LIST_FIRST(divcbinfo.ipi_listhead), i = 0; inp && i < n;
+ inp = LIST_NEXT(inp, inp_list)) {
#ifdef __APPLE__
if (inp->inp_gencnt <= gencnt && inp->inp_state != INPCB_STATE_DEAD)
#else
if (inp->inp_gencnt <= gencnt && !prison_xinpcb(req->p, inp))
#endif
- inp_list[i++] = inp;
+ { inp_list[i++] = inp;}
}
n = i;
xi.xi_len = sizeof xi;
/* XXX should avoid extra copy */
inpcb_to_compat(inp, &xi.xi_inp);
- if (inp->inp_socket)
+ if (inp->inp_socket) {
sotoxsocket(inp->inp_socket, &xi.xi_socket);
+ }
error = SYSCTL_OUT(req, &xi, sizeof xi);
}
}
error = SYSCTL_OUT(req, &xig, sizeof xig);
}
FREE(inp_list, M_TEMP);
- lck_rw_done(divcbinfo.mtx);
+ lck_rw_done(divcbinfo.ipi_lock);
return error;
}
+#endif
__private_extern__ int
-div_lock(struct socket *so, int refcount, int lr)
- {
- int lr_saved;
-#ifdef __ppc__
- if (lr == 0) {
- __asm__ volatile("mflr %0" : "=r" (lr_saved));
- }
- else lr_saved = lr;
-#endif
-
+div_lock(struct socket *so, int refcount, void *lr)
+{
+ void *lr_saved;
+
+ if (lr == NULL) {
+ lr_saved = __builtin_return_address(0);
+ } else {
+ lr_saved = lr;
+ }
+
#ifdef MORE_DICVLOCK_DEBUG
- printf("div_lock: so=%x sopcb=%x lock=%x ref=%x lr=%x\n",
- so,
- so->so_pcb,
- so->so_pcb ? ((struct inpcb *)so->so_pcb)->inpcb_mtx : 0,
- so->so_usecount,
- lr_saved);
+ printf("div_lock: so=0x%llx sopcb=0x%llx lock=0x%llx ref=%x "
+ "lr=0x%llx\n", (uint64_t)VM_KERNEL_ADDRPERM(so),
+ (uint64_t)VM_KERNEL_ADDRPERM(so->so_pcb), so->so_pcb ?
+ (uint64_t)VM_KERNEL_ADDRPERM(&(sotoinpcb(so)->inpcb_mtx)) : NULL,
+ so->so_usecount, (uint64_t)VM_KERNEL_ADDRPERM(lr_saved));
#endif
if (so->so_pcb) {
- lck_mtx_lock(((struct inpcb *)so->so_pcb)->inpcb_mtx);
- } else {
- panic("div_lock: so=%x NO PCB! lr=%x\n", so, lr_saved);
- lck_mtx_lock(so->so_proto->pr_domain->dom_mtx);
- }
-
- if (so->so_usecount < 0)
- panic("div_lock: so=%x so_pcb=%x lr=%x ref=%x\n",
- so, so->so_pcb, lr_saved, so->so_usecount);
-
- if (refcount)
+ lck_mtx_lock(&((struct inpcb *)so->so_pcb)->inpcb_mtx);
+ } else {
+ panic("div_lock: so=%p NO PCB! lr=%p lrh= lrh= %s\n",
+ so, lr_saved, solockhistory_nr(so));
+ /* NOTREACHED */
+ }
+
+ if (so->so_usecount < 0) {
+ panic("div_lock: so=%p so_pcb=%p lr=%p ref=%x lrh= %s\n",
+ so, so->so_pcb, lr_saved, so->so_usecount,
+ solockhistory_nr(so));
+ /* NOTREACHED */
+ }
+
+ if (refcount) {
so->so_usecount++;
- so->reserved3 = (void *)lr_saved;
+ }
+ so->lock_lr[so->next_lock_lr] = lr_saved;
+ so->next_lock_lr = (so->next_lock_lr + 1) % SO_LCKDBG_MAX;
- return (0);
+ return 0;
}
__private_extern__ int
-div_unlock(struct socket *so, int refcount, int lr)
+div_unlock(struct socket *so, int refcount, void *lr)
{
- int lr_saved;
+ void *lr_saved;
lck_mtx_t * mutex_held;
- struct inpcb *inp = sotoinpcb(so);
-#ifdef __ppc__
- if (lr == 0) {
- __asm__ volatile("mflr %0" : "=r" (lr_saved));
+ struct inpcb *inp = sotoinpcb(so);
+
+ if (lr == NULL) {
+ lr_saved = __builtin_return_address(0);
+ } else {
+ lr_saved = lr;
}
- else lr_saved = lr;
-#endif
-
+
#ifdef MORE_DICVLOCK_DEBUG
- printf("div_unlock: so=%x sopcb=%x lock=%x ref=%x lr=%x\n",
- so,
- so->so_pcb,
- so->so_pcb ? ((struct inpcb *)so->so_pcb)->inpcb_mtx : 0,
- so->so_usecount,
- lr_saved);
+ printf("div_unlock: so=0x%llx sopcb=0x%llx lock=0x%llx ref=%x "
+ "lr=0x%llx\n", (uint64_t)VM_KERNEL_ADDRPERM(so),
+ (uint64_t)VM_KERNEL_ADDRPERM(so->so_pcb), so->so_pcb ?
+ (uint64_t)VM_KERNEL_ADDRPERM(&(sotoinpcb(so)->inpcb_mtx)) : NULL,
+ so->so_usecount, lr_saved);
#endif
- if (refcount)
+ if (refcount) {
so->so_usecount--;
-
- if (so->so_usecount < 0)
- panic("div_unlock: so=%x usecount=%x\n", so, so->so_usecount);
+ }
+
+ if (so->so_usecount < 0) {
+ panic("div_unlock: so=%p usecount=%x lrh= %s\n",
+ so, so->so_usecount, solockhistory_nr(so));
+ /* NOTREACHED */
+ }
if (so->so_pcb == NULL) {
- panic("div_unlock: so=%x NO PCB usecount=%x lr=%x\n", so, so->so_usecount, lr_saved);
- mutex_held = so->so_proto->pr_domain->dom_mtx;
- } else {
- mutex_held = ((struct inpcb *)so->so_pcb)->inpcb_mtx;
+ panic("div_unlock: so=%p NO PCB usecount=%x lr=%p lrh= %s\n",
+ so, so->so_usecount, lr_saved, solockhistory_nr(so));
+ /* NOTREACHED */
}
+ mutex_held = &((struct inpcb *)so->so_pcb)->inpcb_mtx;
if (so->so_usecount == 0 && (inp->inp_wantcnt == WNT_STOPUSING)) {
- lck_rw_lock_exclusive(divcbinfo.mtx);
+ lck_rw_lock_exclusive(divcbinfo.ipi_lock);
+ if (inp->inp_state != INPCB_STATE_DEAD) {
+ in_pcbdetach(inp);
+ }
in_pcbdispose(inp);
- lck_rw_done(divcbinfo.mtx);
- return (0);
+ lck_rw_done(divcbinfo.ipi_lock);
+ return 0;
}
- lck_mtx_assert(mutex_held, LCK_MTX_ASSERT_OWNED);
+ LCK_MTX_ASSERT(mutex_held, LCK_MTX_ASSERT_OWNED);
+ so->unlock_lr[so->next_unlock_lr] = lr_saved;
+ so->next_unlock_lr = (so->next_unlock_lr + 1) % SO_LCKDBG_MAX;
lck_mtx_unlock(mutex_held);
- so->reserved4 = (void *)lr_saved;
- return (0);
+ return 0;
}
__private_extern__ lck_mtx_t *
-div_getlock(struct socket *so, __unused int locktype)
+div_getlock(struct socket *so, __unused int flags)
{
struct inpcb *inpcb = (struct inpcb *)so->so_pcb;
-
- if (so->so_pcb) {
- if (so->so_usecount < 0)
- panic("div_getlock: so=%x usecount=%x\n", so, so->so_usecount);
- return(inpcb->inpcb_mtx);
+
+ if (so->so_pcb) {
+ if (so->so_usecount < 0) {
+ panic("div_getlock: so=%p usecount=%x lrh= %s\n",
+ so, so->so_usecount, solockhistory_nr(so));
+ }
+ return &inpcb->inpcb_mtx;
} else {
- panic("div_getlock: so=%x NULL so_pcb\n", so);
- return (so->so_proto->pr_domain->dom_mtx);
+ panic("div_getlock: so=%p NULL NO PCB lrh= %s\n",
+ so, solockhistory_nr(so));
+ return so->so_proto->pr_domain->dom_mtx;
}
}
-
struct pr_usrreqs div_usrreqs = {
- div_abort, pru_accept_notsupp, div_attach, div_bind,
- pru_connect_notsupp, pru_connect2_notsupp, in_control, div_detach,
- div_disconnect, pru_listen_notsupp, in_setpeeraddr, pru_rcvd_notsupp,
- pru_rcvoob_notsupp, div_send, pru_sense_null, div_shutdown,
- in_setsockaddr, sosend, soreceive, pru_sopoll_notsupp
+ .pru_abort = div_abort,
+ .pru_attach = div_attach,
+ .pru_bind = div_bind,
+ .pru_control = in_control,
+ .pru_detach = div_detach,
+ .pru_disconnect = div_disconnect,
+ .pru_peeraddr = in_getpeeraddr,
+ .pru_send = div_send,
+ .pru_shutdown = div_shutdown,
+ .pru_sockaddr = in_getsockaddr,
+ .pru_sosend = sosend,
+ .pru_soreceive = soreceive,
};
-
projects / apple / xnu.git / blobdiff