#include "kpi_interface.h"
#include <sys/queue.h>
#include <sys/param.h>
#include <kern/debug.h>
#include <sys/errno.h>
#include <sys/socket.h>
#include <sys/kern_event.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/kpi_mbuf.h>
#include <sys/mcache.h>
#include <sys/protosw.h>
#include <sys/syslog.h>
#include <net/if_var.h>
#include <net/if_dl.h>
#include <net/dlil.h>
#include <net/if_types.h>
#include <net/if_dl.h>
#include <net/if_arp.h>
#include <net/if_llreach.h>
#include <net/if_ether.h>
#include <net/net_api_stats.h>
#include <net/route.h>
#include <net/if_ports_used.h>
#include <libkern/libkern.h>
#include <libkern/OSAtomic.h>
#include <kern/locks.h>
#include <kern/clock.h>
#include <sys/sockio.h>
#include <sys/proc.h>
#include <sys/sysctl.h>
#include <sys/mbuf.h>
#include <netinet/ip_var.h>
#include <netinet/udp.h>
#include <netinet/udp_var.h>
#include <netinet/tcp.h>
#include <netinet/tcp_var.h>
#include <netinet/in_pcb.h>
#ifdef INET
#include <netinet/igmp_var.h>
#endif
#ifdef INET6
#include <netinet6/mld6_var.h>
#endif
#include <netkey/key.h>
#include <stdbool.h>
#include "net/net_str_id.h"
#if CONFIG_MACF
#include <sys/kauth.h>
#include <security/mac_framework.h>
#endif
#undef ifnet_allocate
errno_t ifnet_allocate(const struct ifnet_init_params *init,
ifnet_t *ifp);
static errno_t ifnet_allocate_common(const struct ifnet_init_params *init,
ifnet_t *ifp, bool is_internal);
#define TOUCHLASTCHANGE(__if_lastchange) { \
(__if_lastchange)->tv_sec = net_uptime(); \
(__if_lastchange)->tv_usec = 0; \
}
static errno_t ifnet_defrouter_llreachinfo(ifnet_t, int,
struct ifnet_llreach_info *);
static void ifnet_kpi_free(ifnet_t);
static errno_t ifnet_list_get_common(ifnet_family_t, boolean_t, ifnet_t **,
u_int32_t *);
static errno_t ifnet_set_lladdr_internal(ifnet_t, const void *, size_t,
u_char, int);
static errno_t ifnet_awdl_check_eflags(ifnet_t, u_int32_t *, u_int32_t *);
static void
ifnet_kpi_free(ifnet_t ifp)
{
ifnet_detached_func detach_func = ifp->if_kpi_storage;
if (detach_func != NULL)
detach_func(ifp);
if (ifp->if_broadcast.length > sizeof (ifp->if_broadcast.u.buffer)) {
FREE(ifp->if_broadcast.u.ptr, M_IFADDR);
ifp->if_broadcast.u.ptr = NULL;
}
dlil_if_release(ifp);
}
errno_t
ifnet_allocate_common(const struct ifnet_init_params *init,
ifnet_t *ifp, bool is_internal)
{
struct ifnet_init_eparams einit;
bzero(&einit, sizeof (einit));
einit.ver = IFNET_INIT_CURRENT_VERSION;
einit.len = sizeof (einit);
einit.flags = IFNET_INIT_LEGACY | IFNET_INIT_NX_NOAUTO;
if (!is_internal) {
einit.flags |= IFNET_INIT_ALLOC_KPI;
}
einit.uniqueid = init->uniqueid;
einit.uniqueid_len = init->uniqueid_len;
einit.name = init->name;
einit.unit = init->unit;
einit.family = init->family;
einit.type = init->type;
einit.output = init->output;
einit.demux = init->demux;
einit.add_proto = init->add_proto;
einit.del_proto = init->del_proto;
einit.check_multi = init->check_multi;
einit.framer = init->framer;
einit.softc = init->softc;
einit.ioctl = init->ioctl;
einit.set_bpf_tap = init->set_bpf_tap;
einit.detach = init->detach;
einit.event = init->event;
einit.broadcast_addr = init->broadcast_addr;
einit.broadcast_len = init->broadcast_len;
return (ifnet_allocate_extended(&einit, ifp));
}
errno_t
ifnet_allocate_internal(const struct ifnet_init_params *init, ifnet_t *ifp)
{
return (ifnet_allocate_common(init, ifp, true));
}
errno_t
ifnet_allocate(const struct ifnet_init_params *init, ifnet_t *ifp)
{
return (ifnet_allocate_common(init, ifp, false));
}
errno_t
ifnet_allocate_extended(const struct ifnet_init_eparams *einit0,
ifnet_t *interface)
{
struct ifnet_init_eparams einit;
struct ifnet *ifp = NULL;
char if_xname[IFXNAMSIZ] = {0};
int error;
einit = *einit0;
if (einit.ver != IFNET_INIT_CURRENT_VERSION ||
einit.len < sizeof (einit))
return (EINVAL);
if (einit.family == 0 || einit.name == NULL ||
strlen(einit.name) >= IFNAMSIZ ||
(einit.type & 0xFFFFFF00) != 0 || einit.type == 0)
return (EINVAL);
if (einit.flags & IFNET_INIT_LEGACY) {
if (einit.output == NULL ||
(einit.flags & IFNET_INIT_INPUT_POLL))
return (EINVAL);
einit.pre_enqueue = NULL;
einit.start = NULL;
einit.output_ctl = NULL;
einit.output_sched_model = IFNET_SCHED_MODEL_NORMAL;
einit.input_poll = NULL;
einit.input_ctl = NULL;
} else {
if (einit.start == NULL)
return (EINVAL);
einit.output = NULL;
if (einit.output_sched_model >= IFNET_SCHED_MODEL_MAX)
return (EINVAL);
if (einit.flags & IFNET_INIT_INPUT_POLL) {
if (einit.input_poll == NULL || einit.input_ctl == NULL)
return (EINVAL);
} else {
einit.input_poll = NULL;
einit.input_ctl = NULL;
}
}
(void) snprintf(if_xname, sizeof (if_xname), "%s%d",
einit.name, einit.unit);
if (einit.uniqueid == NULL) {
einit.uniqueid = if_xname;
einit.uniqueid_len = strlen(if_xname);
}
error = dlil_if_acquire(einit.family, einit.uniqueid,
einit.uniqueid_len, if_xname, &ifp);
if (error == 0) {
u_int64_t br;
strlcpy(__DECONST(char *, ifp->if_name), einit.name, IFNAMSIZ);
ifp->if_type = einit.type;
ifp->if_family = einit.family;
ifp->if_subfamily = einit.subfamily;
ifp->if_unit = einit.unit;
ifp->if_output = einit.output;
ifp->if_pre_enqueue = einit.pre_enqueue;
ifp->if_start = einit.start;
ifp->if_output_ctl = einit.output_ctl;
ifp->if_output_sched_model = einit.output_sched_model;
ifp->if_output_bw.eff_bw = einit.output_bw;
ifp->if_output_bw.max_bw = einit.output_bw_max;
ifp->if_output_lt.eff_lt = einit.output_lt;
ifp->if_output_lt.max_lt = einit.output_lt_max;
ifp->if_input_poll = einit.input_poll;
ifp->if_input_ctl = einit.input_ctl;
ifp->if_input_bw.eff_bw = einit.input_bw;
ifp->if_input_bw.max_bw = einit.input_bw_max;
ifp->if_input_lt.eff_lt = einit.input_lt;
ifp->if_input_lt.max_lt = einit.input_lt_max;
ifp->if_demux = einit.demux;
ifp->if_add_proto = einit.add_proto;
ifp->if_del_proto = einit.del_proto;
ifp->if_check_multi = einit.check_multi;
ifp->if_framer_legacy = einit.framer;
ifp->if_framer = einit.framer_extended;
ifp->if_softc = einit.softc;
ifp->if_ioctl = einit.ioctl;
ifp->if_set_bpf_tap = einit.set_bpf_tap;
ifp->if_free = ifnet_kpi_free;
ifp->if_event = einit.event;
ifp->if_kpi_storage = einit.detach;
snprintf(__DECONST(char *, ifp->if_xname), IFXNAMSIZ,
"%s", if_xname);
#if CONFIG_EMBEDDED
if (ifp->if_framer == NULL && ifp->if_framer_legacy != NULL)
ifp->if_framer = ifp->if_framer_legacy;
#else
if (ifp->if_framer == NULL && ifp->if_framer_legacy != NULL) {
if (ifp->if_framer_legacy == ether_frameout)
ifp->if_framer = ether_frameout_extended;
else
ifp->if_framer = ifnet_framer_stub;
}
#endif
if (ifp->if_output_bw.eff_bw > ifp->if_output_bw.max_bw)
ifp->if_output_bw.max_bw = ifp->if_output_bw.eff_bw;
else if (ifp->if_output_bw.eff_bw == 0)
ifp->if_output_bw.eff_bw = ifp->if_output_bw.max_bw;
if (ifp->if_input_bw.eff_bw > ifp->if_input_bw.max_bw)
ifp->if_input_bw.max_bw = ifp->if_input_bw.eff_bw;
else if (ifp->if_input_bw.eff_bw == 0)
ifp->if_input_bw.eff_bw = ifp->if_input_bw.max_bw;
if (ifp->if_output_bw.max_bw == 0)
ifp->if_output_bw = ifp->if_input_bw;
else if (ifp->if_input_bw.max_bw == 0)
ifp->if_input_bw = ifp->if_output_bw;
br = MAX(ifp->if_output_bw.max_bw, ifp->if_input_bw.max_bw);
if (br != 0)
ifp->if_baudrate = (br > 0xFFFFFFFF) ? 0xFFFFFFFF : br;
if (ifp->if_output_lt.eff_lt > ifp->if_output_lt.max_lt)
ifp->if_output_lt.max_lt = ifp->if_output_lt.eff_lt;
else if (ifp->if_output_lt.eff_lt == 0)
ifp->if_output_lt.eff_lt = ifp->if_output_lt.max_lt;
if (ifp->if_input_lt.eff_lt > ifp->if_input_lt.max_lt)
ifp->if_input_lt.max_lt = ifp->if_input_lt.eff_lt;
else if (ifp->if_input_lt.eff_lt == 0)
ifp->if_input_lt.eff_lt = ifp->if_input_lt.max_lt;
if (ifp->if_output_lt.max_lt == 0)
ifp->if_output_lt = ifp->if_input_lt;
else if (ifp->if_input_lt.max_lt == 0)
ifp->if_input_lt = ifp->if_output_lt;
if (ifp->if_ioctl == NULL)
ifp->if_ioctl = ifp_if_ioctl;
ifp->if_eflags = 0;
if (ifp->if_start != NULL) {
ifp->if_eflags |= IFEF_TXSTART;
if (ifp->if_pre_enqueue == NULL)
ifp->if_pre_enqueue = ifnet_enqueue;
ifp->if_output = ifp->if_pre_enqueue;
} else {
ifp->if_eflags &= ~IFEF_TXSTART;
}
if (ifp->if_input_poll != NULL)
ifp->if_eflags |= IFEF_RXPOLL;
else
ifp->if_eflags &= ~IFEF_RXPOLL;
ifp->if_output_dlil = dlil_output_handler;
ifp->if_input_dlil = dlil_input_handler;
VERIFY(!(einit.flags & IFNET_INIT_LEGACY) ||
(ifp->if_pre_enqueue == NULL && ifp->if_start == NULL &&
ifp->if_output_ctl == NULL && ifp->if_input_poll == NULL &&
ifp->if_input_ctl == NULL));
VERIFY(!(einit.flags & IFNET_INIT_INPUT_POLL) ||
(ifp->if_input_poll != NULL && ifp->if_input_ctl != NULL));
if (einit.broadcast_len && einit.broadcast_addr) {
if (einit.broadcast_len >
sizeof (ifp->if_broadcast.u.buffer)) {
MALLOC(ifp->if_broadcast.u.ptr, u_char *,
einit.broadcast_len, M_IFADDR, M_NOWAIT);
if (ifp->if_broadcast.u.ptr == NULL) {
error = ENOMEM;
} else {
bcopy(einit.broadcast_addr,
ifp->if_broadcast.u.ptr,
einit.broadcast_len);
}
} else {
bcopy(einit.broadcast_addr,
ifp->if_broadcast.u.buffer,
einit.broadcast_len);
}
ifp->if_broadcast.length = einit.broadcast_len;
} else {
bzero(&ifp->if_broadcast, sizeof (ifp->if_broadcast));
}
ifp->if_xflags = 0;
IFCQ_TARGET_QDELAY(&ifp->if_snd) =
einit.output_target_qdelay * 1000 * 1000;
IFCQ_MAXLEN(&ifp->if_snd) = einit.sndq_maxlen;
ifnet_enqueue_multi_setup(ifp, einit.start_delay_qlen,
einit.start_delay_timeout);
IFCQ_PKT_DROP_LIMIT(&ifp->if_snd) = IFCQ_DEFAULT_PKT_DROP_LIMIT;
ifp->if_refflags = IFRF_EMBRYONIC;
OSIncrementAtomic64(&net_api_stats.nas_ifnet_alloc_count);
INC_ATOMIC_INT64_LIM(net_api_stats.nas_ifnet_alloc_total);
if (einit.flags & IFNET_INIT_ALLOC_KPI) {
ifp->if_xflags |= IFXF_ALLOC_KPI;
} else {
OSIncrementAtomic64(
&net_api_stats.nas_ifnet_alloc_os_count);
INC_ATOMIC_INT64_LIM(
net_api_stats.nas_ifnet_alloc_os_total);
}
if (error == 0) {
*interface = ifp;
ifnet_reference(ifp);
} else {
dlil_if_release(ifp);
*interface = NULL;
}
}
return (error);
}
errno_t
ifnet_reference(ifnet_t ifp)
{
return (dlil_if_ref(ifp));
}
errno_t
ifnet_release(ifnet_t ifp)
{
return (dlil_if_free(ifp));
}
errno_t
ifnet_interface_family_find(const char *module_string,
ifnet_family_t *family_id)
{
if (module_string == NULL || family_id == NULL)
return (EINVAL);
return (net_str_id_find_internal(module_string, family_id,
NSI_IF_FAM_ID, 1));
}
void *
ifnet_softc(ifnet_t interface)
{
return ((interface == NULL) ? NULL : interface->if_softc);
}
const char *
ifnet_name(ifnet_t interface)
{
return ((interface == NULL) ? NULL : interface->if_name);
}
ifnet_family_t
ifnet_family(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_family);
}
ifnet_subfamily_t
ifnet_subfamily(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_subfamily);
}
u_int32_t
ifnet_unit(ifnet_t interface)
{
return ((interface == NULL) ? (u_int32_t)0xffffffff :
(u_int32_t)interface->if_unit);
}
u_int32_t
ifnet_index(ifnet_t interface)
{
return ((interface == NULL) ? (u_int32_t)0xffffffff :
interface->if_index);
}
errno_t
ifnet_set_flags(ifnet_t interface, u_int16_t new_flags, u_int16_t mask)
{
uint16_t old_flags;
if (interface == NULL)
return (EINVAL);
ifnet_lock_exclusive(interface);
if ((mask & IFF_UP) != 0) {
if_updown(interface, (new_flags & IFF_UP) == IFF_UP);
}
old_flags = interface->if_flags;
interface->if_flags = (new_flags & mask) | (interface->if_flags & ~mask);
if ((old_flags & IFF_MULTICAST) !=
(interface->if_flags & IFF_MULTICAST)) {
#if INET
if (IGMP_IFINFO(interface) != NULL)
igmp_initsilent(interface, IGMP_IFINFO(interface));
#endif
#if INET6
if (MLD_IFINFO(interface) != NULL)
mld6_initsilent(interface, MLD_IFINFO(interface));
#endif
}
ifnet_lock_done(interface);
return (0);
}
u_int16_t
ifnet_flags(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_flags);
}
static errno_t
ifnet_awdl_check_eflags(ifnet_t ifp, u_int32_t *new_eflags, u_int32_t *mask)
{
u_int32_t eflags;
ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE);
eflags = (*new_eflags & *mask) | (ifp->if_eflags & ~(*mask));
if (ifp->if_eflags & IFEF_AWDL) {
if (eflags & IFEF_AWDL) {
if ((eflags & IFEF_AWDL_MASK) != IFEF_AWDL_MASK)
return (EINVAL);
} else {
*new_eflags &= ~IFEF_AWDL_MASK;
*mask |= IFEF_AWDL_MASK;
}
} else if (eflags & IFEF_AWDL) {
*new_eflags |= IFEF_AWDL_MASK;
*mask |= IFEF_AWDL_MASK;
} else if (eflags & IFEF_AWDL_RESTRICTED &&
!(ifp->if_eflags & IFEF_AWDL))
return (EINVAL);
return (0);
}
errno_t
ifnet_set_eflags(ifnet_t interface, u_int32_t new_flags, u_int32_t mask)
{
uint32_t oeflags;
struct kev_msg ev_msg;
struct net_event_data ev_data;
if (interface == NULL)
return (EINVAL);
bzero(&ev_msg, sizeof(ev_msg));
ifnet_lock_exclusive(interface);
if (ifnet_awdl_check_eflags(interface, &new_flags, &mask) != 0) {
ifnet_lock_done(interface);
return (EINVAL);
}
oeflags = interface->if_eflags;
interface->if_eflags =
(new_flags & mask) | (interface->if_eflags & ~mask);
ifnet_lock_done(interface);
if (interface->if_eflags & IFEF_AWDL_RESTRICTED &&
!(oeflags & IFEF_AWDL_RESTRICTED)) {
ev_msg.event_code = KEV_DL_AWDL_RESTRICTED;
} else if (oeflags & IFEF_AWDL_RESTRICTED &&
!(interface->if_eflags & IFEF_AWDL_RESTRICTED))
ev_msg.event_code = KEV_DL_AWDL_UNRESTRICTED;
if (ev_msg.event_code) {
bzero(&ev_data, sizeof(ev_data));
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_class = KEV_NETWORK_CLASS;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
strlcpy(ev_data.if_name, interface->if_name, IFNAMSIZ);
ev_data.if_family = interface->if_family;
ev_data.if_unit = interface->if_unit;
ev_msg.dv[0].data_length = sizeof(struct net_event_data);
ev_msg.dv[0].data_ptr = &ev_data;
ev_msg.dv[1].data_length = 0;
dlil_post_complete_msg(interface, &ev_msg);
}
return (0);
}
u_int32_t
ifnet_eflags(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_eflags);
}
errno_t
ifnet_set_idle_flags_locked(ifnet_t ifp, u_int32_t new_flags, u_int32_t mask)
{
int before, after;
if (ifp == NULL)
return (EINVAL);
LCK_MTX_ASSERT(rnh_lock, LCK_MTX_ASSERT_OWNED);
ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE);
if (!ifnet_is_attached(ifp, 0)) {
ifp->if_idle_new_flags = new_flags;
ifp->if_idle_new_flags_mask = mask;
return (0);
} else {
ifp->if_idle_new_flags = ifp->if_idle_new_flags_mask = 0;
}
before = ifp->if_idle_flags;
ifp->if_idle_flags = (new_flags & mask) | (ifp->if_idle_flags & ~mask);
after = ifp->if_idle_flags;
if ((after - before) < 0 && ifp->if_idle_flags == 0 &&
ifp->if_want_aggressive_drain != 0) {
ifp->if_want_aggressive_drain = 0;
} else if ((after - before) > 0 && ifp->if_want_aggressive_drain == 0) {
ifp->if_want_aggressive_drain++;
}
return (0);
}
errno_t
ifnet_set_idle_flags(ifnet_t ifp, u_int32_t new_flags, u_int32_t mask)
{
errno_t err;
lck_mtx_lock(rnh_lock);
ifnet_lock_exclusive(ifp);
err = ifnet_set_idle_flags_locked(ifp, new_flags, mask);
ifnet_lock_done(ifp);
lck_mtx_unlock(rnh_lock);
return (err);
}
u_int32_t
ifnet_idle_flags(ifnet_t ifp)
{
return ((ifp == NULL) ? 0 : ifp->if_idle_flags);
}
errno_t
ifnet_set_link_quality(ifnet_t ifp, int quality)
{
errno_t err = 0;
if (ifp == NULL || quality < IFNET_LQM_MIN || quality > IFNET_LQM_MAX) {
err = EINVAL;
goto done;
}
if (!ifnet_is_attached(ifp, 0)) {
err = ENXIO;
goto done;
}
if_lqm_update(ifp, quality, 0);
done:
return (err);
}
int
ifnet_link_quality(ifnet_t ifp)
{
int lqm;
if (ifp == NULL)
return (IFNET_LQM_THRESH_OFF);
ifnet_lock_shared(ifp);
lqm = ifp->if_interface_state.lqm_state;
ifnet_lock_done(ifp);
return (lqm);
}
errno_t
ifnet_set_interface_state(ifnet_t ifp,
struct if_interface_state *if_interface_state)
{
errno_t err = 0;
if (ifp == NULL || if_interface_state == NULL) {
err = EINVAL;
goto done;
}
if (!ifnet_is_attached(ifp, 0)) {
err = ENXIO;
goto done;
}
if_state_update(ifp, if_interface_state);
done:
return (err);
}
errno_t
ifnet_get_interface_state(ifnet_t ifp,
struct if_interface_state *if_interface_state)
{
errno_t err = 0;
if (ifp == NULL || if_interface_state == NULL) {
err = EINVAL;
goto done;
}
if (!ifnet_is_attached(ifp, 0)) {
err = ENXIO;
goto done;
}
if_get_state(ifp, if_interface_state);
done:
return (err);
}
static errno_t
ifnet_defrouter_llreachinfo(ifnet_t ifp, int af,
struct ifnet_llreach_info *iflri)
{
if (ifp == NULL || iflri == NULL)
return (EINVAL);
VERIFY(af == AF_INET || af == AF_INET6);
return (ifnet_llreach_get_defrouter(ifp, af, iflri));
}
errno_t
ifnet_inet_defrouter_llreachinfo(ifnet_t ifp, struct ifnet_llreach_info *iflri)
{
return (ifnet_defrouter_llreachinfo(ifp, AF_INET, iflri));
}
errno_t
ifnet_inet6_defrouter_llreachinfo(ifnet_t ifp, struct ifnet_llreach_info *iflri)
{
return (ifnet_defrouter_llreachinfo(ifp, AF_INET6, iflri));
}
errno_t
ifnet_set_capabilities_supported(ifnet_t ifp, u_int32_t new_caps,
u_int32_t mask)
{
errno_t error = 0;
int tmp;
if (ifp == NULL)
return (EINVAL);
ifnet_lock_exclusive(ifp);
tmp = (new_caps & mask) | (ifp->if_capabilities & ~mask);
if ((tmp & ~IFCAP_VALID))
error = EINVAL;
else
ifp->if_capabilities = tmp;
ifnet_lock_done(ifp);
return (error);
}
u_int32_t
ifnet_capabilities_supported(ifnet_t ifp)
{
return ((ifp == NULL) ? 0 : ifp->if_capabilities);
}
errno_t
ifnet_set_capabilities_enabled(ifnet_t ifp, u_int32_t new_caps,
u_int32_t mask)
{
errno_t error = 0;
int tmp;
struct kev_msg ev_msg;
struct net_event_data ev_data;
if (ifp == NULL)
return (EINVAL);
ifnet_lock_exclusive(ifp);
tmp = (new_caps & mask) | (ifp->if_capenable & ~mask);
if ((tmp & ~IFCAP_VALID) || (tmp & ~ifp->if_capabilities))
error = EINVAL;
else
ifp->if_capenable = tmp;
ifnet_lock_done(ifp);
bzero(&ev_data, sizeof (struct net_event_data));
bzero(&ev_msg, sizeof (struct kev_msg));
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_class = KEV_NETWORK_CLASS;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
ev_msg.event_code = KEV_DL_IFCAP_CHANGED;
strlcpy(&ev_data.if_name[0], ifp->if_name, IFNAMSIZ);
ev_data.if_family = ifp->if_family;
ev_data.if_unit = (u_int32_t)ifp->if_unit;
ev_msg.dv[0].data_length = sizeof (struct net_event_data);
ev_msg.dv[0].data_ptr = &ev_data;
ev_msg.dv[1].data_length = 0;
dlil_post_complete_msg(ifp, &ev_msg);
return (error);
}
u_int32_t
ifnet_capabilities_enabled(ifnet_t ifp)
{
return ((ifp == NULL) ? 0 : ifp->if_capenable);
}
static const ifnet_offload_t offload_mask =
(IFNET_CSUM_IP | IFNET_CSUM_TCP | IFNET_CSUM_UDP | IFNET_CSUM_FRAGMENT |
IFNET_IP_FRAGMENT | IFNET_CSUM_TCPIPV6 | IFNET_CSUM_UDPIPV6 |
IFNET_IPV6_FRAGMENT | IFNET_CSUM_PARTIAL | IFNET_CSUM_ZERO_INVERT |
IFNET_VLAN_TAGGING | IFNET_VLAN_MTU | IFNET_MULTIPAGES |
IFNET_TSO_IPV4 | IFNET_TSO_IPV6 | IFNET_TX_STATUS | IFNET_HW_TIMESTAMP |
IFNET_SW_TIMESTAMP);
static const ifnet_offload_t any_offload_csum = IFNET_CHECKSUMF;
errno_t
ifnet_set_offload(ifnet_t interface, ifnet_offload_t offload)
{
u_int32_t ifcaps = 0;
if (interface == NULL)
return (EINVAL);
ifnet_lock_exclusive(interface);
interface->if_hwassist = (offload & offload_mask);
if (interface->if_hwassist & IFNET_CSUM_PARTIAL) {
interface->if_hwassist |= (IFNET_CSUM_TCP | IFNET_CSUM_UDP |
IFNET_CSUM_TCPIPV6 | IFNET_CSUM_UDPIPV6);
}
if (dlil_verbose) {
log(LOG_DEBUG, "%s: set offload flags=%b\n",
if_name(interface),
interface->if_hwassist, IFNET_OFFLOADF_BITS);
}
ifnet_lock_done(interface);
if ((offload & any_offload_csum))
ifcaps |= IFCAP_HWCSUM;
if ((offload & IFNET_TSO_IPV4))
ifcaps |= IFCAP_TSO4;
if ((offload & IFNET_TSO_IPV6))
ifcaps |= IFCAP_TSO6;
if ((offload & IFNET_VLAN_MTU))
ifcaps |= IFCAP_VLAN_MTU;
if ((offload & IFNET_VLAN_TAGGING))
ifcaps |= IFCAP_VLAN_HWTAGGING;
if ((offload & IFNET_TX_STATUS))
ifcaps |= IFCAP_TXSTATUS;
if ((offload & IFNET_HW_TIMESTAMP))
ifcaps |= IFCAP_HW_TIMESTAMP;
if ((offload & IFNET_SW_TIMESTAMP))
ifcaps |= IFCAP_SW_TIMESTAMP;
if ((offload & IFNET_CSUM_PARTIAL))
ifcaps |= IFCAP_CSUM_PARTIAL;
if ((offload & IFNET_CSUM_ZERO_INVERT))
ifcaps |= IFCAP_CSUM_ZERO_INVERT;
if (ifcaps != 0) {
(void) ifnet_set_capabilities_supported(interface, ifcaps,
IFCAP_VALID);
(void) ifnet_set_capabilities_enabled(interface, ifcaps,
IFCAP_VALID);
}
return (0);
}
ifnet_offload_t
ifnet_offload(ifnet_t interface)
{
return ((interface == NULL) ?
0 : (interface->if_hwassist & offload_mask));
}
errno_t
ifnet_set_tso_mtu(ifnet_t interface, sa_family_t family, u_int32_t mtuLen)
{
errno_t error = 0;
if (interface == NULL || mtuLen < interface->if_mtu)
return (EINVAL);
switch (family) {
case AF_INET:
if (interface->if_hwassist & IFNET_TSO_IPV4)
interface->if_tso_v4_mtu = mtuLen;
else
error = EINVAL;
break;
case AF_INET6:
if (interface->if_hwassist & IFNET_TSO_IPV6)
interface->if_tso_v6_mtu = mtuLen;
else
error = EINVAL;
break;
default:
error = EPROTONOSUPPORT;
break;
}
return (error);
}
errno_t
ifnet_get_tso_mtu(ifnet_t interface, sa_family_t family, u_int32_t *mtuLen)
{
errno_t error = 0;
if (interface == NULL || mtuLen == NULL)
return (EINVAL);
switch (family) {
case AF_INET:
if (interface->if_hwassist & IFNET_TSO_IPV4)
*mtuLen = interface->if_tso_v4_mtu;
else
error = EINVAL;
break;
case AF_INET6:
if (interface->if_hwassist & IFNET_TSO_IPV6)
*mtuLen = interface->if_tso_v6_mtu;
else
error = EINVAL;
break;
default:
error = EPROTONOSUPPORT;
break;
}
return (error);
}
errno_t
ifnet_set_wake_flags(ifnet_t interface, u_int32_t properties, u_int32_t mask)
{
struct kev_msg ev_msg;
struct net_event_data ev_data;
bzero(&ev_data, sizeof (struct net_event_data));
bzero(&ev_msg, sizeof (struct kev_msg));
if (interface == NULL)
return (EINVAL);
if ((properties & mask) & ~IF_WAKE_VALID_FLAGS)
return (EINVAL);
ifnet_lock_exclusive(interface);
if (mask & IF_WAKE_ON_MAGIC_PACKET) {
if (properties & IF_WAKE_ON_MAGIC_PACKET)
interface->if_xflags |= IFXF_WAKE_ON_MAGIC_PACKET;
else
interface->if_xflags &= ~IFXF_WAKE_ON_MAGIC_PACKET;
}
ifnet_lock_done(interface);
(void) ifnet_touch_lastchange(interface);
ev_msg.vendor_code = KEV_VENDOR_APPLE;
ev_msg.kev_class = KEV_NETWORK_CLASS;
ev_msg.kev_subclass = KEV_DL_SUBCLASS;
ev_msg.event_code = KEV_DL_WAKEFLAGS_CHANGED;
strlcpy(&ev_data.if_name[0], interface->if_name, IFNAMSIZ);
ev_data.if_family = interface->if_family;
ev_data.if_unit = (u_int32_t)interface->if_unit;
ev_msg.dv[0].data_length = sizeof (struct net_event_data);
ev_msg.dv[0].data_ptr = &ev_data;
ev_msg.dv[1].data_length = 0;
dlil_post_complete_msg(interface, &ev_msg);
return (0);
}
u_int32_t
ifnet_get_wake_flags(ifnet_t interface)
{
u_int32_t flags = 0;
if (interface == NULL)
return (0);
if (interface->if_xflags & IFXF_WAKE_ON_MAGIC_PACKET)
flags |= IF_WAKE_ON_MAGIC_PACKET;
return (flags);
}
errno_t
ifnet_set_link_mib_data(ifnet_t interface, void *mibData, u_int32_t mibLen)
{
if (interface == NULL)
return (EINVAL);
ifnet_lock_exclusive(interface);
interface->if_linkmib = (void*)mibData;
interface->if_linkmiblen = mibLen;
ifnet_lock_done(interface);
return (0);
}
errno_t
ifnet_get_link_mib_data(ifnet_t interface, void *mibData, u_int32_t *mibLen)
{
errno_t result = 0;
if (interface == NULL)
return (EINVAL);
ifnet_lock_shared(interface);
if (*mibLen < interface->if_linkmiblen)
result = EMSGSIZE;
if (result == 0 && interface->if_linkmib == NULL)
result = ENOTSUP;
if (result == 0) {
*mibLen = interface->if_linkmiblen;
bcopy(interface->if_linkmib, mibData, *mibLen);
}
ifnet_lock_done(interface);
return (result);
}
u_int32_t
ifnet_get_link_mib_data_length(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_linkmiblen);
}
errno_t
ifnet_output(ifnet_t interface, protocol_family_t protocol_family,
mbuf_t m, void *route, const struct sockaddr *dest)
{
if (interface == NULL || protocol_family == 0 || m == NULL) {
if (m != NULL)
mbuf_freem_list(m);
return (EINVAL);
}
return (dlil_output(interface, protocol_family, m, route, dest, 0, NULL));
}
errno_t
ifnet_output_raw(ifnet_t interface, protocol_family_t protocol_family, mbuf_t m)
{
if (interface == NULL || m == NULL) {
if (m != NULL)
mbuf_freem_list(m);
return (EINVAL);
}
return (dlil_output(interface, protocol_family, m, NULL, NULL, 1, NULL));
}
errno_t
ifnet_set_mtu(ifnet_t interface, u_int32_t mtu)
{
if (interface == NULL)
return (EINVAL);
interface->if_mtu = mtu;
return (0);
}
u_int32_t
ifnet_mtu(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_mtu);
}
u_char
ifnet_type(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_data.ifi_type);
}
errno_t
ifnet_set_addrlen(ifnet_t interface, u_char addrlen)
{
if (interface == NULL)
return (EINVAL);
interface->if_data.ifi_addrlen = addrlen;
return (0);
}
u_char
ifnet_addrlen(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_data.ifi_addrlen);
}
errno_t
ifnet_set_hdrlen(ifnet_t interface, u_char hdrlen)
{
if (interface == NULL)
return (EINVAL);
interface->if_data.ifi_hdrlen = hdrlen;
return (0);
}
u_char
ifnet_hdrlen(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_data.ifi_hdrlen);
}
errno_t
ifnet_set_metric(ifnet_t interface, u_int32_t metric)
{
if (interface == NULL)
return (EINVAL);
interface->if_data.ifi_metric = metric;
return (0);
}
u_int32_t
ifnet_metric(ifnet_t interface)
{
return ((interface == NULL) ? 0 : interface->if_data.ifi_metric);
}
errno_t
ifnet_set_baudrate(struct ifnet *ifp, u_int64_t baudrate)
{
if (ifp == NULL)
return (EINVAL);
ifp->if_output_bw.max_bw = ifp->if_input_bw.max_bw =
ifp->if_output_bw.eff_bw = ifp->if_input_bw.eff_bw = baudrate;
ifp->if_baudrate = (baudrate > 0xFFFFFFFF) ? 0xFFFFFFFF : baudrate;
return (0);
}
u_int64_t
ifnet_baudrate(struct ifnet *ifp)
{
return ((ifp == NULL) ? 0 : ifp->if_baudrate);
}
errno_t
ifnet_set_bandwidths(struct ifnet *ifp, struct if_bandwidths *output_bw,
struct if_bandwidths *input_bw)
{
if (ifp == NULL)
return (EINVAL);
if (input_bw != NULL)
(void) ifnet_set_input_bandwidths(ifp, input_bw);
if (output_bw != NULL)
(void) ifnet_set_output_bandwidths(ifp, output_bw, FALSE);
return (0);
}
static void
ifnet_set_link_status_outbw(struct ifnet *ifp)
{
struct if_wifi_status_v1 *sr;
sr = &ifp->if_link_status->ifsr_u.ifsr_wifi.if_wifi_u.if_status_v1;
if (ifp->if_output_bw.eff_bw != 0) {
sr->valid_bitmask |=
IF_WIFI_UL_EFFECTIVE_BANDWIDTH_VALID;
sr->ul_effective_bandwidth =
ifp->if_output_bw.eff_bw;
}
if (ifp->if_output_bw.max_bw != 0) {
sr->valid_bitmask |=
IF_WIFI_UL_MAX_BANDWIDTH_VALID;
sr->ul_max_bandwidth =
ifp->if_output_bw.max_bw;
}
}
errno_t
ifnet_set_output_bandwidths(struct ifnet *ifp, struct if_bandwidths *bw,
boolean_t locked)
{
struct if_bandwidths old_bw;
struct ifclassq *ifq;
u_int64_t br;
VERIFY(ifp != NULL && bw != NULL);
ifq = &ifp->if_snd;
if (!locked)
IFCQ_LOCK(ifq);
IFCQ_LOCK_ASSERT_HELD(ifq);
old_bw = ifp->if_output_bw;
if (bw->eff_bw != 0)
ifp->if_output_bw.eff_bw = bw->eff_bw;
if (bw->max_bw != 0)
ifp->if_output_bw.max_bw = bw->max_bw;
if (ifp->if_output_bw.eff_bw > ifp->if_output_bw.max_bw)
ifp->if_output_bw.max_bw = ifp->if_output_bw.eff_bw;
else if (ifp->if_output_bw.eff_bw == 0)
ifp->if_output_bw.eff_bw = ifp->if_output_bw.max_bw;
br = MAX(ifp->if_output_bw.max_bw, ifp->if_input_bw.max_bw);
if (br != 0)
ifp->if_baudrate = (br > 0xFFFFFFFF) ? 0xFFFFFFFF : br;
if (old_bw.eff_bw != ifp->if_output_bw.eff_bw ||
old_bw.max_bw != ifp->if_output_bw.max_bw)
ifnet_update_sndq(ifq, CLASSQ_EV_LINK_BANDWIDTH);
if (!locked)
IFCQ_UNLOCK(ifq);
if (IFNET_IS_WIFI(ifp) && ifp->if_link_status != NULL) {
lck_rw_lock_exclusive(&ifp->if_link_status_lock);
ifnet_set_link_status_outbw(ifp);
lck_rw_done(&ifp->if_link_status_lock);
}
return (0);
}
static void
ifnet_set_link_status_inbw(struct ifnet *ifp)
{
struct if_wifi_status_v1 *sr;
sr = &ifp->if_link_status->ifsr_u.ifsr_wifi.if_wifi_u.if_status_v1;
if (ifp->if_input_bw.eff_bw != 0) {
sr->valid_bitmask |=
IF_WIFI_DL_EFFECTIVE_BANDWIDTH_VALID;
sr->dl_effective_bandwidth =
ifp->if_input_bw.eff_bw;
}
if (ifp->if_input_bw.max_bw != 0) {
sr->valid_bitmask |=
IF_WIFI_DL_MAX_BANDWIDTH_VALID;
sr->dl_max_bandwidth = ifp->if_input_bw.max_bw;
}
}
errno_t
ifnet_set_input_bandwidths(struct ifnet *ifp, struct if_bandwidths *bw)
{
struct if_bandwidths old_bw;
VERIFY(ifp != NULL && bw != NULL);
old_bw = ifp->if_input_bw;
if (bw->eff_bw != 0)
ifp->if_input_bw.eff_bw = bw->eff_bw;
if (bw->max_bw != 0)
ifp->if_input_bw.max_bw = bw->max_bw;
if (ifp->if_input_bw.eff_bw > ifp->if_input_bw.max_bw)
ifp->if_input_bw.max_bw = ifp->if_input_bw.eff_bw;
else if (ifp->if_input_bw.eff_bw == 0)
ifp->if_input_bw.eff_bw = ifp->if_input_bw.max_bw;
if (IFNET_IS_WIFI(ifp) && ifp->if_link_status != NULL) {
lck_rw_lock_exclusive(&ifp->if_link_status_lock);
ifnet_set_link_status_inbw(ifp);
lck_rw_done(&ifp->if_link_status_lock);
}
if (old_bw.eff_bw != ifp->if_input_bw.eff_bw ||
old_bw.max_bw != ifp->if_input_bw.max_bw)
ifnet_update_rcv(ifp, CLASSQ_EV_LINK_BANDWIDTH);
return (0);
}
u_int64_t
ifnet_output_linkrate(struct ifnet *ifp)
{
struct ifclassq *ifq = &ifp->if_snd;
u_int64_t rate;
IFCQ_LOCK_ASSERT_HELD(ifq);
rate = ifp->if_output_bw.eff_bw;
if (IFCQ_TBR_IS_ENABLED(ifq)) {
u_int64_t tbr_rate = ifp->if_snd.ifcq_tbr.tbr_rate_raw;
VERIFY(tbr_rate > 0);
rate = MIN(rate, ifp->if_snd.ifcq_tbr.tbr_rate_raw);
}
return (rate);
}
u_int64_t
ifnet_input_linkrate(struct ifnet *ifp)
{
return (ifp->if_input_bw.eff_bw);
}
errno_t
ifnet_bandwidths(struct ifnet *ifp, struct if_bandwidths *output_bw,
struct if_bandwidths *input_bw)
{
if (ifp == NULL)
return (EINVAL);
if (output_bw != NULL)
*output_bw = ifp->if_output_bw;
if (input_bw != NULL)
*input_bw = ifp->if_input_bw;
return (0);
}
errno_t
ifnet_set_latencies(struct ifnet *ifp, struct if_latencies *output_lt,
struct if_latencies *input_lt)
{
if (ifp == NULL)
return (EINVAL);
if (output_lt != NULL)
(void) ifnet_set_output_latencies(ifp, output_lt, FALSE);
if (input_lt != NULL)
(void) ifnet_set_input_latencies(ifp, input_lt);
return (0);
}
errno_t
ifnet_set_output_latencies(struct ifnet *ifp, struct if_latencies *lt,
boolean_t locked)
{
struct if_latencies old_lt;
struct ifclassq *ifq;
VERIFY(ifp != NULL && lt != NULL);
ifq = &ifp->if_snd;
if (!locked)
IFCQ_LOCK(ifq);
IFCQ_LOCK_ASSERT_HELD(ifq);
old_lt = ifp->if_output_lt;
if (lt->eff_lt != 0)
ifp->if_output_lt.eff_lt = lt->eff_lt;
if (lt->max_lt != 0)
ifp->if_output_lt.max_lt = lt->max_lt;
if (ifp->if_output_lt.eff_lt > ifp->if_output_lt.max_lt)
ifp->if_output_lt.max_lt = ifp->if_output_lt.eff_lt;
else if (ifp->if_output_lt.eff_lt == 0)
ifp->if_output_lt.eff_lt = ifp->if_output_lt.max_lt;
if (old_lt.eff_lt != ifp->if_output_lt.eff_lt ||
old_lt.max_lt != ifp->if_output_lt.max_lt)
ifnet_update_sndq(ifq, CLASSQ_EV_LINK_LATENCY);
if (!locked)
IFCQ_UNLOCK(ifq);
return (0);
}
errno_t
ifnet_set_input_latencies(struct ifnet *ifp, struct if_latencies *lt)
{
struct if_latencies old_lt;
VERIFY(ifp != NULL && lt != NULL);
old_lt = ifp->if_input_lt;
if (lt->eff_lt != 0)
ifp->if_input_lt.eff_lt = lt->eff_lt;
if (lt->max_lt != 0)
ifp->if_input_lt.max_lt = lt->max_lt;
if (ifp->if_input_lt.eff_lt > ifp->if_input_lt.max_lt)
ifp->if_input_lt.max_lt = ifp->if_input_lt.eff_lt;
else if (ifp->if_input_lt.eff_lt == 0)
ifp->if_input_lt.eff_lt = ifp->if_input_lt.max_lt;
if (old_lt.eff_lt != ifp->if_input_lt.eff_lt ||
old_lt.max_lt != ifp->if_input_lt.max_lt)
ifnet_update_rcv(ifp, CLASSQ_EV_LINK_LATENCY);
return (0);
}
errno_t
ifnet_latencies(struct ifnet *ifp, struct if_latencies *output_lt,
struct if_latencies *input_lt)
{
if (ifp == NULL)
return (EINVAL);
if (output_lt != NULL)
*output_lt = ifp->if_output_lt;
if (input_lt != NULL)
*input_lt = ifp->if_input_lt;
return (0);
}
errno_t
ifnet_set_poll_params(struct ifnet *ifp, struct ifnet_poll_params *p)
{
errno_t err;
if (ifp == NULL)
return (EINVAL);
else if (!ifnet_is_attached(ifp, 1))
return (ENXIO);
err = dlil_rxpoll_set_params(ifp, p, FALSE);
ifnet_decr_iorefcnt(ifp);
return (err);
}
errno_t
ifnet_poll_params(struct ifnet *ifp, struct ifnet_poll_params *p)
{
errno_t err;
if (ifp == NULL || p == NULL)
return (EINVAL);
else if (!ifnet_is_attached(ifp, 1))
return (ENXIO);
err = dlil_rxpoll_get_params(ifp, p);
ifnet_decr_iorefcnt(ifp);
return (err);
}
errno_t
ifnet_stat_increment(struct ifnet *ifp,
const struct ifnet_stat_increment_param *s)
{
if (ifp == NULL)
return (EINVAL);
if (s->packets_in != 0)
atomic_add_64(&ifp->if_data.ifi_ipackets, s->packets_in);
if (s->bytes_in != 0)
atomic_add_64(&ifp->if_data.ifi_ibytes, s->bytes_in);
if (s->errors_in != 0)
atomic_add_64(&ifp->if_data.ifi_ierrors, s->errors_in);
if (s->packets_out != 0)
atomic_add_64(&ifp->if_data.ifi_opackets, s->packets_out);
if (s->bytes_out != 0)
atomic_add_64(&ifp->if_data.ifi_obytes, s->bytes_out);
if (s->errors_out != 0)
atomic_add_64(&ifp->if_data.ifi_oerrors, s->errors_out);
if (s->collisions != 0)
atomic_add_64(&ifp->if_data.ifi_collisions, s->collisions);
if (s->dropped != 0)
atomic_add_64(&ifp->if_data.ifi_iqdrops, s->dropped);
TOUCHLASTCHANGE(&ifp->if_lastchange);
if (ifp->if_data_threshold != 0)
ifnet_notify_data_threshold(ifp);
return (0);
}
errno_t
ifnet_stat_increment_in(struct ifnet *ifp, u_int32_t packets_in,
u_int32_t bytes_in, u_int32_t errors_in)
{
if (ifp == NULL)
return (EINVAL);
if (packets_in != 0)
atomic_add_64(&ifp->if_data.ifi_ipackets, packets_in);
if (bytes_in != 0)
atomic_add_64(&ifp->if_data.ifi_ibytes, bytes_in);
if (errors_in != 0)
atomic_add_64(&ifp->if_data.ifi_ierrors, errors_in);
TOUCHLASTCHANGE(&ifp->if_lastchange);
if (ifp->if_data_threshold != 0)
ifnet_notify_data_threshold(ifp);
return (0);
}
errno_t
ifnet_stat_increment_out(struct ifnet *ifp, u_int32_t packets_out,
u_int32_t bytes_out, u_int32_t errors_out)
{
if (ifp == NULL)
return (EINVAL);
if (packets_out != 0)
atomic_add_64(&ifp->if_data.ifi_opackets, packets_out);
if (bytes_out != 0)
atomic_add_64(&ifp->if_data.ifi_obytes, bytes_out);
if (errors_out != 0)
atomic_add_64(&ifp->if_data.ifi_oerrors, errors_out);
TOUCHLASTCHANGE(&ifp->if_lastchange);
if (ifp->if_data_threshold != 0)
ifnet_notify_data_threshold(ifp);
return (0);
}
errno_t
ifnet_set_stat(struct ifnet *ifp, const struct ifnet_stats_param *s)
{
if (ifp == NULL)
return (EINVAL);
atomic_set_64(&ifp->if_data.ifi_ipackets, s->packets_in);
atomic_set_64(&ifp->if_data.ifi_ibytes, s->bytes_in);
atomic_set_64(&ifp->if_data.ifi_imcasts, s->multicasts_in);
atomic_set_64(&ifp->if_data.ifi_ierrors, s->errors_in);
atomic_set_64(&ifp->if_data.ifi_opackets, s->packets_out);
atomic_set_64(&ifp->if_data.ifi_obytes, s->bytes_out);
atomic_set_64(&ifp->if_data.ifi_omcasts, s->multicasts_out);
atomic_set_64(&ifp->if_data.ifi_oerrors, s->errors_out);
atomic_set_64(&ifp->if_data.ifi_collisions, s->collisions);
atomic_set_64(&ifp->if_data.ifi_iqdrops, s->dropped);
atomic_set_64(&ifp->if_data.ifi_noproto, s->no_protocol);
TOUCHLASTCHANGE(&ifp->if_lastchange);
if (ifp->if_data_threshold != 0)
ifnet_notify_data_threshold(ifp);
return (0);
}
errno_t
ifnet_stat(struct ifnet *ifp, struct ifnet_stats_param *s)
{
if (ifp == NULL)
return (EINVAL);
atomic_get_64(s->packets_in, &ifp->if_data.ifi_ipackets);
atomic_get_64(s->bytes_in, &ifp->if_data.ifi_ibytes);
atomic_get_64(s->multicasts_in, &ifp->if_data.ifi_imcasts);
atomic_get_64(s->errors_in, &ifp->if_data.ifi_ierrors);
atomic_get_64(s->packets_out, &ifp->if_data.ifi_opackets);
atomic_get_64(s->bytes_out, &ifp->if_data.ifi_obytes);
atomic_get_64(s->multicasts_out, &ifp->if_data.ifi_omcasts);
atomic_get_64(s->errors_out, &ifp->if_data.ifi_oerrors);
atomic_get_64(s->collisions, &ifp->if_data.ifi_collisions);
atomic_get_64(s->dropped, &ifp->if_data.ifi_iqdrops);
atomic_get_64(s->no_protocol, &ifp->if_data.ifi_noproto);
if (ifp->if_data_threshold != 0)
ifnet_notify_data_threshold(ifp);
return (0);
}
errno_t
ifnet_touch_lastchange(ifnet_t interface)
{
if (interface == NULL)
return (EINVAL);
TOUCHLASTCHANGE(&interface->if_lastchange);
return (0);
}
errno_t
ifnet_lastchange(ifnet_t interface, struct timeval *last_change)
{
if (interface == NULL)
return (EINVAL);
*last_change = interface->if_data.ifi_lastchange;
last_change->tv_sec += boottime_sec();
return (0);
}
errno_t
ifnet_touch_lastupdown(ifnet_t interface)
{
if (interface == NULL) {
return (EINVAL);
}
TOUCHLASTCHANGE(&interface->if_lastupdown);
return (0);
}
errno_t
ifnet_updown_delta(ifnet_t interface, struct timeval *updown_delta)
{
if (interface == NULL) {
return (EINVAL);
}
updown_delta->tv_sec = net_uptime();
if (updown_delta->tv_sec > interface->if_data.ifi_lastupdown.tv_sec) {
updown_delta->tv_sec -= interface->if_data.ifi_lastupdown.tv_sec;
}
updown_delta->tv_usec = 0;
return (0);
}
errno_t
ifnet_get_address_list(ifnet_t interface, ifaddr_t **addresses)
{
return (addresses == NULL ? EINVAL :
ifnet_get_address_list_family(interface, addresses, 0));
}
struct ifnet_addr_list {
SLIST_ENTRY(ifnet_addr_list) ifal_le;
struct ifaddr *ifal_ifa;
};
errno_t
ifnet_get_address_list_family(ifnet_t interface, ifaddr_t **addresses,
sa_family_t family)
{
return (ifnet_get_address_list_family_internal(interface, addresses,
family, 0, M_NOWAIT, 0));
}
errno_t
ifnet_get_inuse_address_list(ifnet_t interface, ifaddr_t **addresses)
{
return (addresses == NULL ? EINVAL :
ifnet_get_address_list_family_internal(interface, addresses,
0, 0, M_NOWAIT, 1));
}
extern uint32_t tcp_find_anypcb_byaddr(struct ifaddr *ifa);
extern uint32_t udp_find_anypcb_byaddr(struct ifaddr *ifa);
__private_extern__ errno_t
ifnet_get_address_list_family_internal(ifnet_t interface, ifaddr_t **addresses,
sa_family_t family, int detached, int how, int return_inuse_addrs)
{
SLIST_HEAD(, ifnet_addr_list) ifal_head;
struct ifnet_addr_list *ifal, *ifal_tmp;
struct ifnet *ifp;
int count = 0;
errno_t err = 0;
int usecount = 0;
int index = 0;
SLIST_INIT(&ifal_head);
if (addresses == NULL) {
err = EINVAL;
goto done;
}
*addresses = NULL;
if (detached) {
ifp = interface;
if (ifp == NULL) {
err = EINVAL;
goto done;
}
goto one;
}
ifnet_head_lock_shared();
TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
if (interface != NULL && ifp != interface)
continue;
one:
ifnet_lock_shared(ifp);
if (interface == NULL || interface == ifp) {
struct ifaddr *ifa;
TAILQ_FOREACH(ifa, &ifp->if_addrhead, ifa_link) {
IFA_LOCK(ifa);
if (family != 0 &&
ifa->ifa_addr->sa_family != family) {
IFA_UNLOCK(ifa);
continue;
}
MALLOC(ifal, struct ifnet_addr_list *,
sizeof (*ifal), M_TEMP, how);
if (ifal == NULL) {
IFA_UNLOCK(ifa);
ifnet_lock_done(ifp);
if (!detached)
ifnet_head_done();
err = ENOMEM;
goto done;
}
ifal->ifal_ifa = ifa;
IFA_ADDREF_LOCKED(ifa);
SLIST_INSERT_HEAD(&ifal_head, ifal, ifal_le);
++count;
IFA_UNLOCK(ifa);
}
}
ifnet_lock_done(ifp);
if (detached)
break;
}
if (!detached)
ifnet_head_done();
if (count == 0) {
err = ENXIO;
goto done;
}
MALLOC(*addresses, ifaddr_t *, sizeof (ifaddr_t) * (count + 1),
M_TEMP, how);
if (*addresses == NULL) {
err = ENOMEM;
goto done;
}
bzero(*addresses, sizeof (ifaddr_t) * (count + 1));
done:
SLIST_FOREACH_SAFE(ifal, &ifal_head, ifal_le, ifal_tmp) {
SLIST_REMOVE(&ifal_head, ifal, ifnet_addr_list, ifal_le);
if (err == 0) {
if (return_inuse_addrs) {
usecount = tcp_find_anypcb_byaddr(ifal->ifal_ifa);
usecount += udp_find_anypcb_byaddr(ifal->ifal_ifa);
if (usecount) {
(*addresses)[index] = ifal->ifal_ifa;
index++;
} else {
IFA_REMREF(ifal->ifal_ifa);
}
} else {
(*addresses)[--count] = ifal->ifal_ifa;
}
} else {
IFA_REMREF(ifal->ifal_ifa);
}
FREE(ifal, M_TEMP);
}
VERIFY(err == 0 || *addresses == NULL);
if ((err == 0) && (count) && ((*addresses)[0] == NULL)) {
VERIFY(return_inuse_addrs == 1);
FREE(*addresses, M_TEMP);
err = ENXIO;
}
return (err);
}
void
ifnet_free_address_list(ifaddr_t *addresses)
{
int i;
if (addresses == NULL)
return;
for (i = 0; addresses[i] != NULL; i++)
IFA_REMREF(addresses[i]);
FREE(addresses, M_TEMP);
}
void *
ifnet_lladdr(ifnet_t interface)
{
struct ifaddr *ifa;
void *lladdr;
if (interface == NULL)
return (NULL);
ifa = interface->if_lladdr;
IFA_LOCK_SPIN(ifa);
lladdr = LLADDR(SDL((void *)ifa->ifa_addr));
IFA_UNLOCK(ifa);
return (lladdr);
}
errno_t
ifnet_llbroadcast_copy_bytes(ifnet_t interface, void *addr, size_t buffer_len,
size_t *out_len)
{
if (interface == NULL || addr == NULL || out_len == NULL)
return (EINVAL);
*out_len = interface->if_broadcast.length;
if (buffer_len < interface->if_broadcast.length)
return (EMSGSIZE);
if (interface->if_broadcast.length == 0)
return (ENXIO);
if (interface->if_broadcast.length <=
sizeof (interface->if_broadcast.u.buffer)) {
bcopy(interface->if_broadcast.u.buffer, addr,
interface->if_broadcast.length);
} else {
bcopy(interface->if_broadcast.u.ptr, addr,
interface->if_broadcast.length);
}
return (0);
}
static errno_t
ifnet_lladdr_copy_bytes_internal(ifnet_t interface, void *lladdr,
size_t lladdr_len, kauth_cred_t *credp)
{
const u_int8_t *bytes;
size_t bytes_len;
struct ifaddr *ifa;
uint8_t sdlbuf[SOCK_MAXADDRLEN + 1];
errno_t error = 0;
_CASSERT(sizeof (sdlbuf) == (SOCK_MAXADDRLEN + 1));
if (interface == NULL || lladdr == NULL)
return (EINVAL);
ifa = interface->if_lladdr;
IFA_LOCK_SPIN(ifa);
bcopy(ifa->ifa_addr, &sdlbuf, SDL(ifa->ifa_addr)->sdl_len);
IFA_UNLOCK(ifa);
bytes = dlil_ifaddr_bytes(SDL(&sdlbuf), &bytes_len, credp);
if (bytes_len != lladdr_len) {
bzero(lladdr, lladdr_len);
error = EMSGSIZE;
} else {
bcopy(bytes, lladdr, bytes_len);
}
return (error);
}
errno_t
ifnet_lladdr_copy_bytes(ifnet_t interface, void *lladdr, size_t length)
{
return (ifnet_lladdr_copy_bytes_internal(interface, lladdr, length,
NULL));
}
errno_t
ifnet_guarded_lladdr_copy_bytes(ifnet_t interface, void *lladdr, size_t length)
{
#if CONFIG_MACF
kauth_cred_t cred;
net_thread_marks_t marks;
#endif
kauth_cred_t *credp;
errno_t error;
credp = NULL;
#if CONFIG_MACF
marks = net_thread_marks_push(NET_THREAD_CKREQ_LLADDR);
cred = kauth_cred_proc_ref(current_proc());
credp = &cred;
#else
credp = NULL;
#endif
error = ifnet_lladdr_copy_bytes_internal(interface, lladdr, length,
credp);
#if CONFIG_MACF
kauth_cred_unref(credp);
net_thread_marks_pop(marks);
#endif
return (error);
}
static errno_t
ifnet_set_lladdr_internal(ifnet_t interface, const void *lladdr,
size_t lladdr_len, u_char new_type, int apply_type)
{
struct ifaddr *ifa;
errno_t error = 0;
if (interface == NULL)
return (EINVAL);
ifnet_head_lock_shared();
ifnet_lock_exclusive(interface);
if (lladdr_len != 0 &&
(lladdr_len != interface->if_addrlen || lladdr == 0)) {
ifnet_lock_done(interface);
ifnet_head_done();
return (EINVAL);
}
ifa = ifnet_addrs[interface->if_index - 1];
if (ifa != NULL) {
struct sockaddr_dl *sdl;
IFA_LOCK_SPIN(ifa);
sdl = (struct sockaddr_dl *)(void *)ifa->ifa_addr;
if (lladdr_len != 0) {
bcopy(lladdr, LLADDR(sdl), lladdr_len);
} else {
bzero(LLADDR(sdl), interface->if_addrlen);
}
sdl->sdl_alen = lladdr_len;
if (apply_type) {
sdl->sdl_type = new_type;
}
IFA_UNLOCK(ifa);
} else {
error = ENXIO;
}
ifnet_lock_done(interface);
ifnet_head_done();
if (error == 0) {
intf_event_enqueue_nwk_wq_entry(interface, NULL,
INTF_EVENT_CODE_LLADDR_UPDATE);
dlil_post_msg(interface, KEV_DL_SUBCLASS,
KEV_DL_LINK_ADDRESS_CHANGED, NULL, 0);
}
return (error);
}
errno_t
ifnet_set_lladdr(ifnet_t interface, const void* lladdr, size_t lladdr_len)
{
return (ifnet_set_lladdr_internal(interface, lladdr, lladdr_len, 0, 0));
}
errno_t
ifnet_set_lladdr_and_type(ifnet_t interface, const void* lladdr,
size_t lladdr_len, u_char type)
{
return (ifnet_set_lladdr_internal(interface, lladdr,
lladdr_len, type, 1));
}
errno_t
ifnet_add_multicast(ifnet_t interface, const struct sockaddr *maddr,
ifmultiaddr_t *ifmap)
{
if (interface == NULL || maddr == NULL)
return (EINVAL);
if (maddr->sa_family != AF_UNSPEC && maddr->sa_family != AF_LINK)
return (EINVAL);
return (if_addmulti_anon(interface, maddr, ifmap));
}
errno_t
ifnet_remove_multicast(ifmultiaddr_t ifma)
{
struct sockaddr *maddr;
if (ifma == NULL)
return (EINVAL);
maddr = ifma->ifma_addr;
if (maddr->sa_family != AF_UNSPEC && maddr->sa_family != AF_LINK)
return (EINVAL);
return (if_delmulti_anon(ifma->ifma_ifp, maddr));
}
errno_t
ifnet_get_multicast_list(ifnet_t ifp, ifmultiaddr_t **addresses)
{
int count = 0;
int cmax = 0;
struct ifmultiaddr *addr;
if (ifp == NULL || addresses == NULL)
return (EINVAL);
ifnet_lock_shared(ifp);
LIST_FOREACH(addr, &ifp->if_multiaddrs, ifma_link) {
cmax++;
}
MALLOC(*addresses, ifmultiaddr_t *, sizeof (ifmultiaddr_t) * (cmax + 1),
M_TEMP, M_NOWAIT);
if (*addresses == NULL) {
ifnet_lock_done(ifp);
return (ENOMEM);
}
LIST_FOREACH(addr, &ifp->if_multiaddrs, ifma_link) {
if (count + 1 > cmax)
break;
(*addresses)[count] = (ifmultiaddr_t)addr;
ifmaddr_reference((*addresses)[count]);
count++;
}
(*addresses)[cmax] = NULL;
ifnet_lock_done(ifp);
return (0);
}
void
ifnet_free_multicast_list(ifmultiaddr_t *addresses)
{
int i;
if (addresses == NULL)
return;
for (i = 0; addresses[i] != NULL; i++)
ifmaddr_release(addresses[i]);
FREE(addresses, M_TEMP);
}
errno_t
ifnet_find_by_name(const char *ifname, ifnet_t *ifpp)
{
struct ifnet *ifp;
int namelen;
if (ifname == NULL)
return (EINVAL);
namelen = strlen(ifname);
*ifpp = NULL;
ifnet_head_lock_shared();
TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
struct ifaddr *ifa;
struct sockaddr_dl *ll_addr;
ifa = ifnet_addrs[ifp->if_index - 1];
if (ifa == NULL)
continue;
IFA_LOCK(ifa);
ll_addr = (struct sockaddr_dl *)(void *)ifa->ifa_addr;
if (namelen == ll_addr->sdl_nlen && strncmp(ll_addr->sdl_data,
ifname, ll_addr->sdl_nlen) == 0) {
IFA_UNLOCK(ifa);
*ifpp = ifp;
ifnet_reference(*ifpp);
break;
}
IFA_UNLOCK(ifa);
}
ifnet_head_done();
return ((ifp == NULL) ? ENXIO : 0);
}
errno_t
ifnet_list_get(ifnet_family_t family, ifnet_t **list, u_int32_t *count)
{
return (ifnet_list_get_common(family, FALSE, list, count));
}
__private_extern__ errno_t
ifnet_list_get_all(ifnet_family_t family, ifnet_t **list, u_int32_t *count)
{
return (ifnet_list_get_common(family, TRUE, list, count));
}
struct ifnet_list {
SLIST_ENTRY(ifnet_list) ifl_le;
struct ifnet *ifl_ifp;
};
static errno_t
ifnet_list_get_common(ifnet_family_t family, boolean_t get_all, ifnet_t **list,
u_int32_t *count)
{
#pragma unused(get_all)
SLIST_HEAD(, ifnet_list) ifl_head;
struct ifnet_list *ifl, *ifl_tmp;
struct ifnet *ifp;
int cnt = 0;
errno_t err = 0;
SLIST_INIT(&ifl_head);
if (list == NULL || count == NULL) {
err = EINVAL;
goto done;
}
*count = 0;
*list = NULL;
ifnet_head_lock_shared();
TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
if (family == IFNET_FAMILY_ANY || ifp->if_family == family) {
MALLOC(ifl, struct ifnet_list *, sizeof (*ifl),
M_TEMP, M_NOWAIT);
if (ifl == NULL) {
ifnet_head_done();
err = ENOMEM;
goto done;
}
ifl->ifl_ifp = ifp;
ifnet_reference(ifp);
SLIST_INSERT_HEAD(&ifl_head, ifl, ifl_le);
++cnt;
}
}
ifnet_head_done();
if (cnt == 0) {
err = ENXIO;
goto done;
}
MALLOC(*list, ifnet_t *, sizeof (ifnet_t) * (cnt + 1),
M_TEMP, M_NOWAIT);
if (*list == NULL) {
err = ENOMEM;
goto done;
}
bzero(*list, sizeof (ifnet_t) * (cnt + 1));
*count = cnt;
done:
SLIST_FOREACH_SAFE(ifl, &ifl_head, ifl_le, ifl_tmp) {
SLIST_REMOVE(&ifl_head, ifl, ifnet_list, ifl_le);
if (err == 0)
(*list)[--cnt] = ifl->ifl_ifp;
else
ifnet_release(ifl->ifl_ifp);
FREE(ifl, M_TEMP);
}
return (err);
}
void
ifnet_list_free(ifnet_t *interfaces)
{
int i;
if (interfaces == NULL)
return;
for (i = 0; interfaces[i]; i++)
ifnet_release(interfaces[i]);
FREE(interfaces, M_TEMP);
}
errno_t
ifaddr_reference(ifaddr_t ifa)
{
if (ifa == NULL)
return (EINVAL);
IFA_ADDREF(ifa);
return (0);
}
errno_t
ifaddr_release(ifaddr_t ifa)
{
if (ifa == NULL)
return (EINVAL);
IFA_REMREF(ifa);
return (0);
}
sa_family_t
ifaddr_address_family(ifaddr_t ifa)
{
sa_family_t family = 0;
if (ifa != NULL) {
IFA_LOCK_SPIN(ifa);
if (ifa->ifa_addr != NULL)
family = ifa->ifa_addr->sa_family;
IFA_UNLOCK(ifa);
}
return (family);
}
errno_t
ifaddr_address(ifaddr_t ifa, struct sockaddr *out_addr, u_int32_t addr_size)
{
u_int32_t copylen;
if (ifa == NULL || out_addr == NULL)
return (EINVAL);
IFA_LOCK_SPIN(ifa);
if (ifa->ifa_addr == NULL) {
IFA_UNLOCK(ifa);
return (ENOTSUP);
}
copylen = (addr_size >= ifa->ifa_addr->sa_len) ?
ifa->ifa_addr->sa_len : addr_size;
bcopy(ifa->ifa_addr, out_addr, copylen);
if (ifa->ifa_addr->sa_len > addr_size) {
IFA_UNLOCK(ifa);
return (EMSGSIZE);
}
IFA_UNLOCK(ifa);
return (0);
}
errno_t
ifaddr_dstaddress(ifaddr_t ifa, struct sockaddr *out_addr, u_int32_t addr_size)
{
u_int32_t copylen;
if (ifa == NULL || out_addr == NULL)
return (EINVAL);
IFA_LOCK_SPIN(ifa);
if (ifa->ifa_dstaddr == NULL) {
IFA_UNLOCK(ifa);
return (ENOTSUP);
}
copylen = (addr_size >= ifa->ifa_dstaddr->sa_len) ?
ifa->ifa_dstaddr->sa_len : addr_size;
bcopy(ifa->ifa_dstaddr, out_addr, copylen);
if (ifa->ifa_dstaddr->sa_len > addr_size) {
IFA_UNLOCK(ifa);
return (EMSGSIZE);
}
IFA_UNLOCK(ifa);
return (0);
}
errno_t
ifaddr_netmask(ifaddr_t ifa, struct sockaddr *out_addr, u_int32_t addr_size)
{
u_int32_t copylen;
if (ifa == NULL || out_addr == NULL)
return (EINVAL);
IFA_LOCK_SPIN(ifa);
if (ifa->ifa_netmask == NULL) {
IFA_UNLOCK(ifa);
return (ENOTSUP);
}
copylen = addr_size >= ifa->ifa_netmask->sa_len ?
ifa->ifa_netmask->sa_len : addr_size;
bcopy(ifa->ifa_netmask, out_addr, copylen);
if (ifa->ifa_netmask->sa_len > addr_size) {
IFA_UNLOCK(ifa);
return (EMSGSIZE);
}
IFA_UNLOCK(ifa);
return (0);
}
ifnet_t
ifaddr_ifnet(ifaddr_t ifa)
{
struct ifnet *ifp;
if (ifa == NULL)
return (NULL);
ifp = ifa->ifa_ifp;
return (ifp);
}
ifaddr_t
ifaddr_withaddr(const struct sockaddr *address)
{
if (address == NULL)
return (NULL);
return (ifa_ifwithaddr(address));
}
ifaddr_t
ifaddr_withdstaddr(const struct sockaddr *address)
{
if (address == NULL)
return (NULL);
return (ifa_ifwithdstaddr(address));
}
ifaddr_t
ifaddr_withnet(const struct sockaddr *net)
{
if (net == NULL)
return (NULL);
return (ifa_ifwithnet(net));
}
ifaddr_t
ifaddr_withroute(int flags, const struct sockaddr *destination,
const struct sockaddr *gateway)
{
if (destination == NULL || gateway == NULL)
return (NULL);
return (ifa_ifwithroute(flags, destination, gateway));
}
ifaddr_t
ifaddr_findbestforaddr(const struct sockaddr *addr, ifnet_t interface)
{
if (addr == NULL || interface == NULL)
return (NULL);
return (ifaof_ifpforaddr_select(addr, interface));
}
errno_t
ifmaddr_reference(ifmultiaddr_t ifmaddr)
{
if (ifmaddr == NULL)
return (EINVAL);
IFMA_ADDREF(ifmaddr);
return (0);
}
errno_t
ifmaddr_release(ifmultiaddr_t ifmaddr)
{
if (ifmaddr == NULL)
return (EINVAL);
IFMA_REMREF(ifmaddr);
return (0);
}
errno_t
ifmaddr_address(ifmultiaddr_t ifma, struct sockaddr *out_addr,
u_int32_t addr_size)
{
u_int32_t copylen;
if (ifma == NULL || out_addr == NULL)
return (EINVAL);
IFMA_LOCK(ifma);
if (ifma->ifma_addr == NULL) {
IFMA_UNLOCK(ifma);
return (ENOTSUP);
}
copylen = (addr_size >= ifma->ifma_addr->sa_len ?
ifma->ifma_addr->sa_len : addr_size);
bcopy(ifma->ifma_addr, out_addr, copylen);
if (ifma->ifma_addr->sa_len > addr_size) {
IFMA_UNLOCK(ifma);
return (EMSGSIZE);
}
IFMA_UNLOCK(ifma);
return (0);
}
errno_t
ifmaddr_lladdress(ifmultiaddr_t ifma, struct sockaddr *out_addr,
u_int32_t addr_size)
{
struct ifmultiaddr *ifma_ll;
if (ifma == NULL || out_addr == NULL)
return (EINVAL);
if ((ifma_ll = ifma->ifma_ll) == NULL)
return (ENOTSUP);
return (ifmaddr_address(ifma_ll, out_addr, addr_size));
}
ifnet_t
ifmaddr_ifnet(ifmultiaddr_t ifma)
{
return ((ifma == NULL) ? NULL : ifma->ifma_ifp);
}
errno_t
ifnet_clone_attach(struct ifnet_clone_params *cloner_params,
if_clone_t *ifcloner)
{
errno_t error = 0;
struct if_clone *ifc = NULL;
size_t namelen;
if (cloner_params == NULL || ifcloner == NULL ||
cloner_params->ifc_name == NULL ||
cloner_params->ifc_create == NULL ||
cloner_params->ifc_destroy == NULL ||
(namelen = strlen(cloner_params->ifc_name)) >= IFNAMSIZ) {
error = EINVAL;
goto fail;
}
if (if_clone_lookup(cloner_params->ifc_name, NULL) != NULL) {
printf("%s: already a cloner for %s\n", __func__,
cloner_params->ifc_name);
error = EEXIST;
goto fail;
}
ifc = _MALLOC(sizeof (struct if_clone) + IFNAMSIZ + 1, M_CLONE,
M_WAITOK | M_ZERO);
if (ifc == NULL) {
printf("%s: _MALLOC failed\n", __func__);
error = ENOBUFS;
goto fail;
}
strlcpy((char *)(ifc + 1), cloner_params->ifc_name, IFNAMSIZ + 1);
ifc->ifc_name = (char *)(ifc + 1);
ifc->ifc_namelen = namelen;
ifc->ifc_maxunit = IF_MAXUNIT;
ifc->ifc_create = cloner_params->ifc_create;
ifc->ifc_destroy = cloner_params->ifc_destroy;
error = if_clone_attach(ifc);
if (error != 0) {
printf("%s: if_clone_attach failed %d\n", __func__, error);
goto fail;
}
*ifcloner = ifc;
return (0);
fail:
if (ifc != NULL)
FREE(ifc, M_CLONE);
return (error);
}
errno_t
ifnet_clone_detach(if_clone_t ifcloner)
{
errno_t error = 0;
struct if_clone *ifc = ifcloner;
if (ifc == NULL || ifc->ifc_name == NULL)
return (EINVAL);
if ((if_clone_lookup(ifc->ifc_name, NULL)) == NULL) {
printf("%s: no cloner for %s\n", __func__, ifc->ifc_name);
error = EINVAL;
goto fail;
}
if_clone_detach(ifc);
FREE(ifc, M_CLONE);
fail:
return (error);
}
errno_t
ifnet_get_local_ports_extended(ifnet_t ifp, protocol_family_t protocol,
u_int32_t flags, u_int8_t *bitfield)
{
u_int32_t ifindex;
u_int32_t inp_flags = 0;
if (bitfield == NULL)
return (EINVAL);
switch (protocol) {
case PF_UNSPEC:
case PF_INET:
case PF_INET6:
break;
default:
return (EINVAL);
}
bzero(bitfield, bitstr_size(IP_PORTRANGE_SIZE));
if_ports_used_update_wakeuuid(ifp);
inp_flags |= ((flags & IFNET_GET_LOCAL_PORTS_WILDCARDOK) ?
INPCB_GET_PORTS_USED_WILDCARDOK : 0);
inp_flags |= ((flags & IFNET_GET_LOCAL_PORTS_NOWAKEUPOK) ?
INPCB_GET_PORTS_USED_NOWAKEUPOK : 0);
inp_flags |= ((flags & IFNET_GET_LOCAL_PORTS_RECVANYIFONLY) ?
INPCB_GET_PORTS_USED_RECVANYIFONLY : 0);
inp_flags |= ((flags & IFNET_GET_LOCAL_PORTS_EXTBGIDLEONLY) ?
INPCB_GET_PORTS_USED_EXTBGIDLEONLY : 0);
inp_flags |= ((flags & IFNET_GET_LOCAL_PORTS_ACTIVEONLY) ?
INPCB_GET_PORTS_USED_ACTIVEONLY : 0);
ifindex = (ifp != NULL) ? ifp->if_index : 0;
if (!(flags & IFNET_GET_LOCAL_PORTS_TCPONLY))
udp_get_ports_used(ifindex, protocol, inp_flags,
bitfield);
if (!(flags & IFNET_GET_LOCAL_PORTS_UDPONLY))
tcp_get_ports_used(ifindex, protocol, inp_flags,
bitfield);
return (0);
}
errno_t
ifnet_get_local_ports(ifnet_t ifp, u_int8_t *bitfield)
{
u_int32_t flags = IFNET_GET_LOCAL_PORTS_WILDCARDOK;
return (ifnet_get_local_ports_extended(ifp, PF_UNSPEC, flags,
bitfield));
}
errno_t
ifnet_notice_node_presence(ifnet_t ifp, struct sockaddr *sa, int32_t rssi,
int lqm, int npm, u_int8_t srvinfo[48])
{
if (ifp == NULL || sa == NULL || srvinfo == NULL)
return (EINVAL);
if (sa->sa_len > sizeof(struct sockaddr_storage))
return (EINVAL);
if (sa->sa_family != AF_LINK && sa->sa_family != AF_INET6)
return (EINVAL);
dlil_node_present(ifp, sa, rssi, lqm, npm, srvinfo);
return (0);
}
errno_t
ifnet_notice_node_absence(ifnet_t ifp, struct sockaddr *sa)
{
if (ifp == NULL || sa == NULL)
return (EINVAL);
if (sa->sa_len > sizeof(struct sockaddr_storage))
return (EINVAL);
if (sa->sa_family != AF_LINK && sa->sa_family != AF_INET6)
return (EINVAL);
dlil_node_absent(ifp, sa);
return (0);
}
errno_t
ifnet_notice_master_elected(ifnet_t ifp)
{
if (ifp == NULL)
return (EINVAL);
dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_MASTER_ELECTED, NULL, 0);
return (0);
}
errno_t
ifnet_tx_compl_status(ifnet_t ifp, mbuf_t m, tx_compl_val_t val)
{
#pragma unused(val)
m_do_tx_compl_callback(m, ifp);
return (0);
}
errno_t
ifnet_tx_compl(ifnet_t ifp, mbuf_t m)
{
m_do_tx_compl_callback(m, ifp);
return (0);
}
errno_t
ifnet_report_issues(ifnet_t ifp, u_int8_t modid[IFNET_MODIDLEN],
u_int8_t info[IFNET_MODARGLEN])
{
if (ifp == NULL || modid == NULL)
return (EINVAL);
dlil_report_issues(ifp, modid, info);
return (0);
}
errno_t
ifnet_set_delegate(ifnet_t ifp, ifnet_t delegated_ifp)
{
ifnet_t odifp = NULL;
if (ifp == NULL)
return (EINVAL);
else if (!ifnet_is_attached(ifp, 1))
return (ENXIO);
ifnet_lock_exclusive(ifp);
odifp = ifp->if_delegated.ifp;
if (odifp != NULL && odifp == delegated_ifp) {
ifnet_lock_done(ifp);
goto done;
}
ifnet_t delegate_check_ifp = delegated_ifp;
while (delegate_check_ifp != NULL) {
if (delegate_check_ifp == ifp) {
printf("%s: delegating to %s would cause a loop\n",
ifp->if_xname, delegated_ifp->if_xname);
ifnet_lock_done(ifp);
goto done;
}
delegate_check_ifp = delegate_check_ifp->if_delegated.ifp;
}
bzero(&ifp->if_delegated, sizeof (ifp->if_delegated));
if (delegated_ifp != NULL && ifp != delegated_ifp) {
ifp->if_delegated.ifp = delegated_ifp;
ifnet_reference(delegated_ifp);
ifp->if_delegated.type = delegated_ifp->if_type;
ifp->if_delegated.family = delegated_ifp->if_family;
ifp->if_delegated.subfamily = delegated_ifp->if_subfamily;
ifp->if_delegated.expensive =
delegated_ifp->if_eflags & IFEF_EXPENSIVE ? 1 : 0;
ifp->if_eflags &= ~(IFEF_ECN_ENABLE|IFEF_ECN_DISABLE);
ifp->if_eflags |= (delegated_ifp->if_eflags &
(IFEF_ECN_ENABLE|IFEF_ECN_DISABLE));
printf("%s: is now delegating %s (type 0x%x, family %u, "
"sub-family %u)\n", ifp->if_xname, delegated_ifp->if_xname,
delegated_ifp->if_type, delegated_ifp->if_family,
delegated_ifp->if_subfamily);
}
ifnet_lock_done(ifp);
if (odifp != NULL) {
if (odifp != delegated_ifp) {
printf("%s: is no longer delegating %s\n",
ifp->if_xname, odifp->if_xname);
}
ifnet_release(odifp);
}
dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_IFDELEGATE_CHANGED, NULL, 0);
done:
ifnet_decr_iorefcnt(ifp);
return (0);
}
errno_t
ifnet_get_delegate(ifnet_t ifp, ifnet_t *pdelegated_ifp)
{
if (ifp == NULL || pdelegated_ifp == NULL)
return (EINVAL);
else if (!ifnet_is_attached(ifp, 1))
return (ENXIO);
ifnet_lock_shared(ifp);
if (ifp->if_delegated.ifp != NULL)
ifnet_reference(ifp->if_delegated.ifp);
*pdelegated_ifp = ifp->if_delegated.ifp;
ifnet_lock_done(ifp);
ifnet_decr_iorefcnt(ifp);
return (0);
}
errno_t
ifnet_get_keepalive_offload_frames(ifnet_t ifp,
struct ifnet_keepalive_offload_frame *frames_array,
u_int32_t frames_array_count, size_t frame_data_offset,
u_int32_t *used_frames_count)
{
u_int32_t i;
if (frames_array == NULL || used_frames_count == NULL ||
frame_data_offset >= IFNET_KEEPALIVE_OFFLOAD_FRAME_DATA_SIZE)
return (EINVAL);
if (P2ROUNDUP(frame_data_offset, sizeof(u_int32_t)) !=
frame_data_offset)
return (EINVAL);
*used_frames_count = 0;
if (frames_array_count == 0)
return (0);
if (IS_INTF_CLAT46(ifp))
return (0);
for (i = 0; i < frames_array_count; i++) {
struct ifnet_keepalive_offload_frame *frame = frames_array + i;
bzero(frame, sizeof(struct ifnet_keepalive_offload_frame));
}
*used_frames_count = key_fill_offload_frames_for_savs(ifp,
frames_array, frames_array_count, frame_data_offset);
if (*used_frames_count < frames_array_count)
udp_fill_keepalive_offload_frames(ifp, frames_array,
frames_array_count, frame_data_offset,
used_frames_count);
if (*used_frames_count < frames_array_count)
tcp_fill_keepalive_offload_frames(ifp, frames_array,
frames_array_count, frame_data_offset,
used_frames_count);
VERIFY(*used_frames_count <= frames_array_count);
return (0);
}
errno_t
ifnet_link_status_report(ifnet_t ifp, const void *buffer,
size_t buffer_len)
{
struct if_link_status *ifsr;
errno_t err = 0;
if (ifp == NULL || buffer == NULL || buffer_len == 0)
return (EINVAL);
ifnet_lock_shared(ifp);
if (!ifnet_is_attached(ifp, 0)) {
ifnet_lock_done(ifp);
return (ENXIO);
}
lck_rw_lock_exclusive(&ifp->if_link_status_lock);
if (ifp->if_link_status == NULL) {
MALLOC(ifp->if_link_status, struct if_link_status *,
sizeof(struct if_link_status), M_TEMP, M_ZERO);
if (ifp->if_link_status == NULL) {
err = ENOMEM;
goto done;
}
}
ifsr = __DECONST(struct if_link_status *, buffer);
if (ifp->if_type == IFT_CELLULAR) {
struct if_cellular_status_v1 *if_cell_sr, *new_cell_sr;
if (ifsr->ifsr_version !=
IF_CELLULAR_STATUS_REPORT_CURRENT_VERSION) {
err = ENOTSUP;
goto done;
}
if (ifsr->ifsr_len != sizeof(*if_cell_sr)) {
err = EINVAL;
goto done;
}
if_cell_sr =
&ifp->if_link_status->ifsr_u.ifsr_cell.if_cell_u.if_status_v1;
new_cell_sr = &ifsr->ifsr_u.ifsr_cell.if_cell_u.if_status_v1;
if ((new_cell_sr->valid_bitmask &
IF_CELL_UL_MSS_RECOMMENDED_VALID) &&
new_cell_sr->mss_recommended !=
if_cell_sr->mss_recommended) {
atomic_bitset_32(&tcbinfo.ipi_flags,
INPCBINFO_UPDATE_MSS);
inpcb_timer_sched(&tcbinfo, INPCB_TIMER_FAST);
#if NECP
necp_update_all_clients();
#endif
}
ifp->if_link_status->ifsr_version = ifsr->ifsr_version;
ifp->if_link_status->ifsr_len = ifsr->ifsr_len;
if_cell_sr->valid_bitmask = 0;
bcopy(new_cell_sr, if_cell_sr, sizeof(*if_cell_sr));
} else if (ifp->if_subfamily == IFNET_SUBFAMILY_WIFI) {
struct if_wifi_status_v1 *if_wifi_sr, *new_wifi_sr;
if (ifsr->ifsr_version !=
IF_WIFI_STATUS_REPORT_CURRENT_VERSION) {
err = ENOTSUP;
goto done;
}
if (ifsr->ifsr_len != sizeof(*if_wifi_sr)) {
err = EINVAL;
goto done;
}
if_wifi_sr =
&ifp->if_link_status->ifsr_u.ifsr_wifi.if_wifi_u.if_status_v1;
new_wifi_sr =
&ifsr->ifsr_u.ifsr_wifi.if_wifi_u.if_status_v1;
ifp->if_link_status->ifsr_version = ifsr->ifsr_version;
ifp->if_link_status->ifsr_len = ifsr->ifsr_len;
if_wifi_sr->valid_bitmask = 0;
bcopy(new_wifi_sr, if_wifi_sr, sizeof(*if_wifi_sr));
if (!(new_wifi_sr->valid_bitmask &
IF_WIFI_UL_MAX_BANDWIDTH_VALID) &&
ifp->if_output_bw.max_bw > 0) {
if_wifi_sr->valid_bitmask |=
IF_WIFI_UL_MAX_BANDWIDTH_VALID;
if_wifi_sr->ul_max_bandwidth =
ifp->if_output_bw.max_bw;
}
if (!(new_wifi_sr->valid_bitmask &
IF_WIFI_UL_EFFECTIVE_BANDWIDTH_VALID) &&
ifp->if_output_bw.eff_bw > 0) {
if_wifi_sr->valid_bitmask |=
IF_WIFI_UL_EFFECTIVE_BANDWIDTH_VALID;
if_wifi_sr->ul_effective_bandwidth =
ifp->if_output_bw.eff_bw;
}
if (!(new_wifi_sr->valid_bitmask &
IF_WIFI_DL_MAX_BANDWIDTH_VALID) &&
ifp->if_input_bw.max_bw > 0) {
if_wifi_sr->valid_bitmask |=
IF_WIFI_DL_MAX_BANDWIDTH_VALID;
if_wifi_sr->dl_max_bandwidth =
ifp->if_input_bw.max_bw;
}
if (!(new_wifi_sr->valid_bitmask &
IF_WIFI_DL_EFFECTIVE_BANDWIDTH_VALID) &&
ifp->if_input_bw.eff_bw > 0) {
if_wifi_sr->valid_bitmask |=
IF_WIFI_DL_EFFECTIVE_BANDWIDTH_VALID;
if_wifi_sr->dl_effective_bandwidth =
ifp->if_input_bw.eff_bw;
}
}
done:
lck_rw_done(&ifp->if_link_status_lock);
ifnet_lock_done(ifp);
return (err);
}
errno_t
ifnet_set_fastlane_capable(ifnet_t interface, boolean_t capable)
{
if (interface == NULL)
return (EINVAL);
if_set_qosmarking_mode(interface,
capable ? IFRTYPE_QOSMARKING_FASTLANE : IFRTYPE_QOSMARKING_MODE_NONE);
return (0);
}
errno_t
ifnet_get_fastlane_capable(ifnet_t interface, boolean_t *capable)
{
if (interface == NULL || capable == NULL)
return (EINVAL);
if (interface->if_eflags & IFEF_QOSMARKING_CAPABLE)
*capable = true;
else
*capable = false;
return (0);
}
errno_t
ifnet_get_unsent_bytes(ifnet_t interface, int64_t *unsent_bytes)
{
int64_t bytes;
if (interface == NULL || unsent_bytes == NULL)
return (EINVAL);
bytes = *unsent_bytes = 0;
if (!IF_FULLY_ATTACHED(interface))
return (ENXIO);
bytes = interface->if_sndbyte_unsent;
if (interface->if_eflags & IFEF_TXSTART)
bytes += IFCQ_BYTES(&interface->if_snd);
*unsent_bytes = bytes;
return (0);
}
errno_t
ifnet_get_buffer_status(const ifnet_t ifp, ifnet_buffer_status_t *buf_status)
{
if (ifp == NULL || buf_status == NULL)
return (EINVAL);
bzero(buf_status, sizeof (*buf_status));
if (!IF_FULLY_ATTACHED(ifp))
return (ENXIO);
if (ifp->if_eflags & IFEF_TXSTART)
buf_status->buf_interface = IFCQ_BYTES(&ifp->if_snd);
buf_status->buf_sndbuf = ((buf_status->buf_interface != 0) ||
(ifp->if_sndbyte_unsent != 0)) ? 1 : 0;
return (0);
}
void
ifnet_normalise_unsent_data(void)
{
struct ifnet *ifp;
ifnet_head_lock_shared();
TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
ifnet_lock_exclusive(ifp);
if (!IF_FULLY_ATTACHED(ifp)) {
ifnet_lock_done(ifp);
continue;
}
if (!(ifp->if_eflags & IFEF_TXSTART)) {
ifnet_lock_done(ifp);
continue;
}
if (ifp->if_sndbyte_total > 0 ||
IFCQ_BYTES(&ifp->if_snd) > 0)
ifp->if_unsent_data_cnt++;
ifnet_lock_done(ifp);
}
ifnet_head_done();
}
errno_t
ifnet_set_low_power_mode(ifnet_t ifp, boolean_t on)
{
errno_t error;
error = if_set_low_power(ifp, on);
return (error);
}
errno_t
ifnet_get_low_power_mode(ifnet_t ifp, boolean_t *on)
{
if (ifp == NULL || on == NULL)
return (EINVAL);
*on = !!(ifp->if_xflags & IFXF_LOW_POWER);
return (0);
}