/*
- * Copyright (c) 2000-2013 Apple 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@
*/
/*
/*
* 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_int32_t div_sendspace = DIVSNDQ; /* XXX sysctl ? */
-static u_int32_t 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, 0, { 0 }, { 0,0,0,0,0,0,0,0 } };
+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_in *addr, struct mbuf *control);
+ struct mbuf *m, struct sockaddr_in *addr, struct mbuf *control);
extern int load_ipfw(void);
/*
static int div_initialized = 0;
struct inpcbinfo *pcbinfo;
- VERIFY((pp->pr_flags & (PR_INITIALIZED|PR_ATTACHED)) == PR_ATTACHED);
+ VERIFY((pp->pr_flags & (PR_INITIALIZED | PR_ATTACHED)) == PR_ATTACHED);
- if (div_initialized)
+ if (div_initialized) {
return;
+ }
div_initialized = 1;
LIST_INIT(&divcb);
*/
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");
+ 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->ipi_lock_grp_attr = lck_grp_attr_alloc_init();
/* 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) &&
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", if_name(m->m_pkthdr.rcvif));
+ "%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.ipi_lock);
+ 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);
OSAddAtomic(1, &ipstat.ips_noproto);
OSAddAtomic(-1, &ipstat.ips_delivered);
- }
- lck_rw_done(divcbinfo.ipi_lock);
+ }
+ 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(struct socket *so, struct mbuf *m, struct sockaddr_in *sin,
- struct mbuf *control)
+ struct mbuf *control)
{
struct inpcb *const inp = sotoinpcb(so);
struct ip *const ip = mtod(m, struct ip *);
int error = 0;
- mbuf_svc_class_t msc = MBUF_SC_UNSPEC;
+ int sotc = SO_TC_UNSPEC;
if (control != NULL) {
- msc = mbuf_service_class_from_control(control);
+ int ignored;
- m_freem(control); /* XXX */
+ (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_create(KERNEL_MODULE_TAG_ID, KERNEL_TAG_TYPE_DIVERT,
- sizeof(struct divert_tag), M_NOWAIT, m);
+ 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 =
- { IFSCOPE_NONE, { 0 }, IPOAF_SELECT_SRCIF, 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;
}
/* Copy the cached route and take an extra reference */
inp_route_copyout(inp, &ro);
- set_packet_service_class(m, so, msc, 0);
+ 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)
+ if (imo != NULL) {
IMO_ADDREF(imo);
+ }
socket_unlock(so, 0);
#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);
+ (so->so_options & SO_DONTROUTE) |
+ IP_ALLOWBROADCAST | IP_RAWOUTPUT | IP_OUTARGS,
+ imo, &ipoa);
socket_lock(so, 0);
- if (imo != NULL)
+ 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) {
* Make sure there are no distractions for
* ifa_ifwithaddr; use sanitized version.
*/
- bzero(&_sin, sizeof (_sin));
+ bzero(&_sin, sizeof(_sin));
_sin.sin_family = AF_INET;
- _sin.sin_len = sizeof (struct sockaddr_in);
+ _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;
inp = sotoinpcb(so);
- if (inp)
+ if (inp) {
panic("div_attach");
- if ((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
so->so_usecount);
#endif
inp = sotoinpcb(so);
- if (inp == 0)
+ 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 *)(void *)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) {
+ 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;
if (req->oldptr == USER_ADDR_NULL) {
n = divcbinfo.ipi_count;
req->oldidx = 2 * (sizeof xig)
- + (n + n/8) * sizeof(struct xinpcb);
+ + (n + n / 8) * sizeof(struct xinpcb);
lck_rw_done(divcbinfo.ipi_lock);
return 0;
}
lck_rw_done(divcbinfo.ipi_lock);
return ENOMEM;
}
-
+
for (inp = LIST_FIRST(divcbinfo.ipi_listhead), i = 0; inp && i < n;
- inp = LIST_NEXT(inp, inp_list)) {
+ 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);
}
}
{
void *lr_saved;
- if (lr == NULL)
+ if (lr == NULL) {
lr_saved = __builtin_return_address(0);
- else
+ } else {
lr_saved = lr;
+ }
#ifdef MORE_DICVLOCK_DEBUG
printf("div_lock: so=0x%llx sopcb=0x%llx lock=0x%llx ref=%x "
#endif
if (so->so_pcb) {
lck_mtx_lock(&((struct inpcb *)so->so_pcb)->inpcb_mtx);
- } else {
- panic("div_lock: so=%p NO PCB! lr=%p lrh= lrh= %s\n",
+ } else {
+ panic("div_lock: so=%p NO PCB! lr=%p lrh= lrh= %s\n",
so, lr_saved, solockhistory_nr(so));
/* NOTREACHED */
}
/* NOTREACHED */
}
- if (refcount)
+ if (refcount) {
so->so_usecount++;
+ }
so->lock_lr[so->next_lock_lr] = lr_saved;
- so->next_lock_lr = (so->next_lock_lr+1) % SO_LCKDBG_MAX;
+ so->next_lock_lr = (so->next_lock_lr + 1) % SO_LCKDBG_MAX;
- return (0);
+ return 0;
}
__private_extern__ int
lck_mtx_t * mutex_held;
struct inpcb *inp = sotoinpcb(so);
- if (lr == NULL)
+ if (lr == NULL) {
lr_saved = __builtin_return_address(0);
- else
+ } else {
lr_saved = lr;
+ }
#ifdef MORE_DICVLOCK_DEBUG
printf("div_unlock: so=0x%llx sopcb=0x%llx lock=0x%llx ref=%x "
(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=%p usecount=%x lrh= %s\n",
+ panic("div_unlock: so=%p usecount=%x lrh= %s\n",
so, so->so_usecount, solockhistory_nr(so));
/* NOTREACHED */
}
if (so->so_usecount == 0 && (inp->inp_wantcnt == WNT_STOPUSING)) {
lck_rw_lock_exclusive(divcbinfo.ipi_lock);
- if (inp->inp_state != INPCB_STATE_DEAD)
+ if (inp->inp_state != INPCB_STATE_DEAD) {
in_pcbdetach(inp);
+ }
in_pcbdispose(inp);
lck_rw_done(divcbinfo.ipi_lock);
- return (0);
+ 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;
+ so->next_unlock_lr = (so->next_unlock_lr + 1) % SO_LCKDBG_MAX;
lck_mtx_unlock(mutex_held);
- 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=%p usecount=%x lrh= %s\n",
+
+ 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);
+ }
+ return &inpcb->inpcb_mtx;
} else {
- panic("div_getlock: so=%p NULL NO PCB lrh= %s\n",
+ panic("div_getlock: so=%p NULL NO PCB lrh= %s\n",
so, solockhistory_nr(so));
- return (so->so_proto->pr_domain->dom_mtx);
+ return so->so_proto->pr_domain->dom_mtx;
}
}
struct pr_usrreqs div_usrreqs = {
- .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,
+ .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