/*
- * Copyright (c) 1999-2012 Apple Inc. All rights reserved.
+ * Copyright (c) 1999-2015 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@
*/
/*
* is included in support of clause 2.2 (b) of the Apple Public License,
* Version 2.0.
*/
+#include <stddef.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <net/dlil.h>
#include <net/if_arp.h>
#include <net/iptap.h>
+#include <net/pktap.h>
#include <sys/kern_event.h>
#include <sys/kdebug.h>
#include <sys/mcache.h>
+#include <sys/syslog.h>
+#include <sys/protosw.h>
+#include <sys/priv.h>
#include <kern/assert.h>
#include <kern/task.h>
#include <kern/sched_prim.h>
#include <kern/locks.h>
#include <kern/zalloc.h>
-#include <net/kpi_protocol.h>
+#include <net/kpi_protocol.h>
#include <net/if_types.h>
#include <net/if_llreach.h>
#include <net/kpi_interfacefilter.h>
#include <net/classq/classq.h>
#include <net/classq/classq_sfb.h>
+#include <net/flowhash.h>
+#include <net/ntstat.h>
#if INET
#include <netinet/in_var.h>
#include <netinet6/in6_var.h>
#include <netinet6/nd6.h>
#include <netinet6/mld6_var.h>
+#include <netinet6/scope6_var.h>
#endif /* INET6 */
-#if NETAT
-#include <netat/at_var.h>
-#endif /* NETAT */
-
#include <libkern/OSAtomic.h>
+#include <libkern/tree.h>
+#include <dev/random/randomdev.h>
#include <machine/machine_routines.h>
#include <mach/thread_act.h>
#include <mach/sdt.h>
-#if CONFIG_MACF_NET
+#if CONFIG_MACF
+#include <sys/kauth.h>
#include <security/mac_framework.h>
-#endif /* MAC_NET */
+#include <net/ethernet.h>
+#include <net/firewire.h>
+#endif
#if PF
#include <net/pfvar.h>
#define DBG_FNC_DLIL_OUTPUT DLILDBG_CODE(DBG_DLIL_STATIC, (2 << 8))
#define DBG_FNC_DLIL_IFOUT DLILDBG_CODE(DBG_DLIL_STATIC, (3 << 8))
-
#define MAX_FRAME_TYPE_SIZE 4 /* LONGWORDS */
#define MAX_LINKADDR 4 /* LONGWORDS */
#define M_NKE M_IFADDR
void *dl_if_uniqueid; /* unique interface id */
size_t dl_if_uniqueid_len; /* length of the unique id */
char dl_if_namestorage[IFNAMSIZ]; /* interface name storage */
+ char dl_if_xnamestorage[IFXNAMSIZ]; /* external name storage */
struct {
struct ifaddr ifa; /* lladdr ifa */
u_int8_t asdl[DLIL_SDLMAXLEN]; /* addr storage */
struct ifnet_filter {
TAILQ_ENTRY(ifnet_filter) filt_next;
u_int32_t filt_skip;
+ u_int32_t filt_flags;
ifnet_t filt_ifp;
const char *filt_name;
void *filt_cookie;
lck_attr_t *ifnet_lock_attr;
decl_lck_rw_data(static, ifnet_head_lock);
decl_lck_mtx_data(static, dlil_ifnet_lock);
-u_int32_t dlil_filter_count = 0;
-extern u_int32_t ipv4_ll_arp_aware;
-
-struct sfb_fc_list ifnet_fclist;
-decl_lck_mtx_data(static, ifnet_fclist_lock);
-
-static unsigned int ifnet_fcezone_size; /* size of ifnet_fce */
-static struct zone *ifnet_fcezone; /* zone for ifnet_fce */
-
-#define IFNET_FCEZONE_MAX 32 /* maximum elements in zone */
-#define IFNET_FCEZONE_NAME "ifnet_fcezone" /* zone name */
-
-static void ifnet_fc_thread_func(void *, wait_result_t);
-static void ifnet_fc_init(void);
+u_int32_t dlil_filter_disable_tso_count = 0;
#if DEBUG
static unsigned int ifnet_debug = 1; /* debugging (enabled) */
static errno_t ifp_if_del_proto(struct ifnet *, protocol_family_t);
static errno_t ifp_if_check_multi(struct ifnet *, const struct sockaddr *);
static errno_t ifp_if_framer(struct ifnet *, struct mbuf **,
- const struct sockaddr *, const char *, const char *
-#if CONFIG_EMBEDDED
- ,
- u_int32_t *, u_int32_t *
-#endif /* CONFIG_EMBEDDED */
- );
+ const struct sockaddr *, const char *, const char *);
+static errno_t ifp_if_framer_extended(struct ifnet *, struct mbuf **,
+ const struct sockaddr *, const char *, const char *,
+ u_int32_t *, u_int32_t *);
static errno_t ifp_if_set_bpf_tap(struct ifnet *, bpf_tap_mode, bpf_packet_func);
static void ifp_if_free(struct ifnet *);
static void ifp_if_event(struct ifnet *, const struct kev_msg *);
static void dlil_main_input_thread_func(void *, wait_result_t);
static void dlil_input_thread_func(void *, wait_result_t);
static void dlil_rxpoll_input_thread_func(void *, wait_result_t);
-static void dlil_rxpoll_calc_limits(struct dlil_threading_info *);
static int dlil_create_input_thread(ifnet_t, struct dlil_threading_info *);
static void dlil_terminate_input_thread(struct dlil_threading_info *);
static void dlil_input_stats_add(const struct ifnet_stat_increment_param *,
static errno_t ifnet_input_common(struct ifnet *, struct mbuf *, struct mbuf *,
const struct ifnet_stat_increment_param *, boolean_t, boolean_t);
+#if DEBUG
+static void dlil_verify_sum16(void);
+#endif /* DEBUG */
+static void dlil_output_cksum_dbg(struct ifnet *, struct mbuf *, uint32_t,
+ protocol_family_t);
+static void dlil_input_cksum_dbg(struct ifnet *, struct mbuf *, char *,
+ protocol_family_t);
+
static void ifnet_detacher_thread_func(void *, wait_result_t);
static int ifnet_detacher_thread_cont(int);
static void ifnet_detach_final(struct ifnet *);
#endif /* INET6 */
static int sysctl_rxpoll SYSCTL_HANDLER_ARGS;
+static int sysctl_rxpoll_mode_holdtime SYSCTL_HANDLER_ARGS;
+static int sysctl_rxpoll_sample_holdtime SYSCTL_HANDLER_ARGS;
+static int sysctl_rxpoll_interval_time SYSCTL_HANDLER_ARGS;
+static int sysctl_rxpoll_wlowat SYSCTL_HANDLER_ARGS;
+static int sysctl_rxpoll_whiwat SYSCTL_HANDLER_ARGS;
static int sysctl_sndq_maxlen SYSCTL_HANDLER_ARGS;
static int sysctl_rcvq_maxlen SYSCTL_HANDLER_ARGS;
+static int sysctl_hwcksum_dbg_mode SYSCTL_HANDLER_ARGS;
+static int sysctl_hwcksum_dbg_partial_rxoff_forced SYSCTL_HANDLER_ARGS;
+static int sysctl_hwcksum_dbg_partial_rxoff_adj SYSCTL_HANDLER_ARGS;
+static int sysctl_get_ports_used SYSCTL_HANDLER_ARGS;
+
+struct chain_len_stats tx_chain_len_stats;
+static int sysctl_tx_chain_len_stats SYSCTL_HANDLER_ARGS;
/* The following are protected by dlil_ifnet_lock */
static TAILQ_HEAD(, ifnet) ifnet_detaching_head;
static u_int32_t ifnet_detaching_cnt;
static void *ifnet_delayed_run; /* wait channel for detaching thread */
+decl_lck_mtx_data(static, ifnet_fc_lock);
+
+static uint32_t ifnet_flowhash_seed;
+
+struct ifnet_flowhash_key {
+ char ifk_name[IFNAMSIZ];
+ uint32_t ifk_unit;
+ uint32_t ifk_flags;
+ uint32_t ifk_eflags;
+ uint32_t ifk_capabilities;
+ uint32_t ifk_capenable;
+ uint32_t ifk_output_sched_model;
+ uint32_t ifk_rand1;
+ uint32_t ifk_rand2;
+};
+
+/* Flow control entry per interface */
+struct ifnet_fc_entry {
+ RB_ENTRY(ifnet_fc_entry) ifce_entry;
+ u_int32_t ifce_flowhash;
+ struct ifnet *ifce_ifp;
+};
+
+static uint32_t ifnet_calc_flowhash(struct ifnet *);
+static int ifce_cmp(const struct ifnet_fc_entry *,
+ const struct ifnet_fc_entry *);
+static int ifnet_fc_add(struct ifnet *);
+static struct ifnet_fc_entry *ifnet_fc_get(u_int32_t);
+static void ifnet_fc_entry_free(struct ifnet_fc_entry *);
+
+/* protected by ifnet_fc_lock */
+RB_HEAD(ifnet_fc_tree, ifnet_fc_entry) ifnet_fc_tree;
+RB_PROTOTYPE(ifnet_fc_tree, ifnet_fc_entry, ifce_entry, ifce_cmp);
+RB_GENERATE(ifnet_fc_tree, ifnet_fc_entry, ifce_entry, ifce_cmp);
+
+static unsigned int ifnet_fc_zone_size; /* sizeof ifnet_fc_entry */
+static struct zone *ifnet_fc_zone; /* ifnet_fc_entry zone */
+
+#define IFNET_FC_ZONE_NAME "ifnet_fc_zone"
+#define IFNET_FC_ZONE_MAX 32
+
extern void bpfdetach(struct ifnet*);
extern void proto_input_run(void);
__private_extern__ void link_rtrequest(int, struct rtentry *, struct sockaddr *);
+#if CONFIG_MACF
+int dlil_lladdr_ckreq = 0;
+#endif
+
#if DEBUG
-static int dlil_verbose = 1;
+int dlil_verbose = 1;
#else
-static int dlil_verbose = 0;
+int dlil_verbose = 0;
#endif /* DEBUG */
#if IFNET_INPUT_SANITY_CHK
/* sanity checking of input packet lists received */
SYSCTL_DECL(_net_link_generic_system);
+#if CONFIG_MACF
+SYSCTL_INT(_net_link_generic_system, OID_AUTO, dlil_lladdr_ckreq,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &dlil_lladdr_ckreq, 0,
+ "Require MACF system info check to expose link-layer address");
+#endif
+
SYSCTL_INT(_net_link_generic_system, OID_AUTO, dlil_verbose,
CTLFLAG_RW | CTLFLAG_LOCKED, &dlil_verbose, 0, "Log DLIL error messages");
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &if_rcvq_maxlen, IFQ_MAXLEN,
sysctl_rcvq_maxlen, "I", "Default receive queue max length");
-#define IF_RXPOLL_DECAY 2 /* ilog2 of EWMA decay rate (4) */
+#define IF_RXPOLL_DECAY 2 /* ilog2 of EWMA decay rate (4) */
static u_int32_t if_rxpoll_decay = IF_RXPOLL_DECAY;
SYSCTL_UINT(_net_link_generic_system, OID_AUTO, rxpoll_decay,
CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_decay, IF_RXPOLL_DECAY,
"ilog2 of EWMA decay rate of avg inbound packets");
-#define IF_RXPOLL_MODE_HOLDTIME (1000ULL * 1000 * 1000) /* 1 sec */
+#define IF_RXPOLL_MODE_HOLDTIME_MIN (10ULL * 1000 * 1000) /* 10 ms */
+#define IF_RXPOLL_MODE_HOLDTIME (1000ULL * 1000 * 1000) /* 1 sec */
static u_int64_t if_rxpoll_mode_holdtime = IF_RXPOLL_MODE_HOLDTIME;
-SYSCTL_QUAD(_net_link_generic_system, OID_AUTO, rxpoll_freeze_time,
- CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_mode_holdtime,
- "input poll mode freeze time");
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, rxpoll_freeze_time,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_mode_holdtime,
+ IF_RXPOLL_MODE_HOLDTIME, sysctl_rxpoll_mode_holdtime,
+ "Q", "input poll mode freeze time");
-#define IF_RXPOLL_SAMPLETIME (10ULL * 1000 * 1000) /* 10 ms */
+#define IF_RXPOLL_SAMPLETIME_MIN (1ULL * 1000 * 1000) /* 1 ms */
+#define IF_RXPOLL_SAMPLETIME (10ULL * 1000 * 1000) /* 10 ms */
static u_int64_t if_rxpoll_sample_holdtime = IF_RXPOLL_SAMPLETIME;
-SYSCTL_QUAD(_net_link_generic_system, OID_AUTO, rxpoll_sample_time,
- CTLFLAG_RD | CTLFLAG_LOCKED, &if_rxpoll_sample_holdtime,
- "input poll sampling time");
-
-#define IF_RXPOLL_INTERVAL_TIME (1ULL * 1000 * 1000) /* 1 ms */
-static u_int64_t if_rxpoll_interval_time = IF_RXPOLL_INTERVAL_TIME;
-SYSCTL_QUAD(_net_link_generic_system, OID_AUTO, rxpoll_interval_time,
- CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_interval_time,
- "input poll interval (time)");
-
-#define IF_RXPOLL_INTERVAL_PKTS 0 /* 0 (disabled) */
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, rxpoll_sample_time,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_sample_holdtime,
+ IF_RXPOLL_SAMPLETIME, sysctl_rxpoll_sample_holdtime,
+ "Q", "input poll sampling time");
+
+#define IF_RXPOLL_INTERVALTIME_MIN (1ULL * 1000) /* 1 us */
+#define IF_RXPOLL_INTERVALTIME (1ULL * 1000 * 1000) /* 1 ms */
+static u_int64_t if_rxpoll_interval_time = IF_RXPOLL_INTERVALTIME;
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, rxpoll_interval_time,
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_interval_time,
+ IF_RXPOLL_INTERVALTIME, sysctl_rxpoll_interval_time,
+ "Q", "input poll interval (time)");
+
+#define IF_RXPOLL_INTERVAL_PKTS 0 /* 0 (disabled) */
static u_int32_t if_rxpoll_interval_pkts = IF_RXPOLL_INTERVAL_PKTS;
SYSCTL_UINT(_net_link_generic_system, OID_AUTO, rxpoll_interval_pkts,
CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_interval_pkts,
IF_RXPOLL_INTERVAL_PKTS, "input poll interval (packets)");
-#define IF_RXPOLL_WLOWAT 5
+#define IF_RXPOLL_WLOWAT 10
static u_int32_t if_rxpoll_wlowat = IF_RXPOLL_WLOWAT;
-SYSCTL_UINT(_net_link_generic_system, OID_AUTO, rxpoll_wakeups_lowat,
- CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_wlowat, IF_RXPOLL_WLOWAT,
- "input poll wakeup low watermark");
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, rxpoll_wakeups_lowat,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_wlowat,
+ IF_RXPOLL_WLOWAT, sysctl_rxpoll_wlowat,
+ "I", "input poll wakeup low watermark");
-#define IF_RXPOLL_WHIWAT 100
+#define IF_RXPOLL_WHIWAT 100
static u_int32_t if_rxpoll_whiwat = IF_RXPOLL_WHIWAT;
-SYSCTL_UINT(_net_link_generic_system, OID_AUTO, rxpoll_wakeups_hiwat,
- CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_whiwat, IF_RXPOLL_WHIWAT,
- "input poll wakeup high watermark");
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, rxpoll_wakeups_hiwat,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &if_rxpoll_whiwat,
+ IF_RXPOLL_WHIWAT, sysctl_rxpoll_whiwat,
+ "I", "input poll wakeup high watermark");
static u_int32_t if_rxpoll_max = 0; /* 0 (automatic) */
SYSCTL_UINT(_net_link_generic_system, OID_AUTO, rxpoll_max,
CTLFLAG_RW | CTLFLAG_LOCKED, &if_flowadv, 1,
"enable flow-advisory mechanism");
+static u_int32_t if_delaybased_queue = 1;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, delaybased_queue,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &if_delaybased_queue, 1,
+ "enable delay based dynamic queue sizing");
+
+static uint64_t hwcksum_in_invalidated = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_in_invalidated, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_in_invalidated, "inbound packets with invalidated hardware cksum");
+
+uint32_t hwcksum_dbg = 0;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, hwcksum_dbg,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &hwcksum_dbg, 0,
+ "enable hardware cksum debugging");
+
+u_int32_t ifnet_start_delayed = 0;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, start_delayed,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ifnet_start_delayed, 0,
+ "number of times start was delayed");
+
+u_int32_t ifnet_delay_start_disabled = 0;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, start_delay_disabled,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ifnet_delay_start_disabled, 0,
+ "number of times start was delayed");
+
+#define HWCKSUM_DBG_PARTIAL_FORCED 0x1 /* forced partial checksum */
+#define HWCKSUM_DBG_PARTIAL_RXOFF_ADJ 0x2 /* adjust start offset */
+#define HWCKSUM_DBG_FINALIZE_FORCED 0x10 /* forced finalize */
+#define HWCKSUM_DBG_MASK \
+ (HWCKSUM_DBG_PARTIAL_FORCED | HWCKSUM_DBG_PARTIAL_RXOFF_ADJ | \
+ HWCKSUM_DBG_FINALIZE_FORCED)
+
+static uint32_t hwcksum_dbg_mode = 0;
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, hwcksum_dbg_mode,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &hwcksum_dbg_mode,
+ 0, sysctl_hwcksum_dbg_mode, "I", "hardware cksum debugging mode");
+
+static uint64_t hwcksum_dbg_partial_forced = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_partial_forced, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_partial_forced, "packets forced using partial cksum");
+
+static uint64_t hwcksum_dbg_partial_forced_bytes = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_partial_forced_bytes, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_partial_forced_bytes, "bytes forced using partial cksum");
+
+static uint32_t hwcksum_dbg_partial_rxoff_forced = 0;
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_partial_rxoff_forced, CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &hwcksum_dbg_partial_rxoff_forced, 0,
+ sysctl_hwcksum_dbg_partial_rxoff_forced, "I",
+ "forced partial cksum rx offset");
+
+static uint32_t hwcksum_dbg_partial_rxoff_adj = 0;
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, hwcksum_dbg_partial_rxoff_adj,
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &hwcksum_dbg_partial_rxoff_adj,
+ 0, sysctl_hwcksum_dbg_partial_rxoff_adj, "I",
+ "adjusted partial cksum rx offset");
+
+static uint64_t hwcksum_dbg_verified = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_verified, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_verified, "packets verified for having good checksum");
+
+static uint64_t hwcksum_dbg_bad_cksum = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_bad_cksum, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_bad_cksum, "packets with bad hardware calculated checksum");
+
+static uint64_t hwcksum_dbg_bad_rxoff = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_bad_rxoff, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_bad_rxoff, "packets with invalid rxoff");
+
+static uint64_t hwcksum_dbg_adjusted = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_adjusted, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_adjusted, "packets with rxoff adjusted");
+
+static uint64_t hwcksum_dbg_finalized_hdr = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_finalized_hdr, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_finalized_hdr, "finalized headers");
+
+static uint64_t hwcksum_dbg_finalized_data = 0;
+SYSCTL_QUAD(_net_link_generic_system, OID_AUTO,
+ hwcksum_dbg_finalized_data, CTLFLAG_RD | CTLFLAG_LOCKED,
+ &hwcksum_dbg_finalized_data, "finalized payloads");
+
+uint32_t hwcksum_tx = 1;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, hwcksum_tx,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &hwcksum_tx, 0,
+ "enable transmit hardware checksum offload");
+
+uint32_t hwcksum_rx = 1;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, hwcksum_rx,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &hwcksum_rx, 0,
+ "enable receive hardware checksum offload");
+
+SYSCTL_PROC(_net_link_generic_system, OID_AUTO, tx_chain_len_stats,
+ CTLFLAG_RD | CTLFLAG_LOCKED, 0, 9,
+ sysctl_tx_chain_len_stats, "S", "");
+
+uint32_t tx_chain_len_count = 0;
+SYSCTL_UINT(_net_link_generic_system, OID_AUTO, tx_chain_len_count,
+ CTLFLAG_RW | CTLFLAG_LOCKED, &tx_chain_len_count, 0,
+ "");
+
+SYSCTL_NODE(_net_link_generic_system, OID_AUTO, get_ports_used,
+ CTLFLAG_RD | CTLFLAG_LOCKED, sysctl_get_ports_used, "");
+
unsigned int net_rxpoll = 1;
unsigned int net_affinity = 1;
static kern_return_t dlil_affinity_set(struct thread *, u_int32_t);
static lck_grp_attr_t *dlil_grp_attributes = NULL;
static lck_attr_t *dlil_lck_attributes = NULL;
-#define PROTO_HASH_SLOTS 0x5
#define DLIL_INPUT_CHECK(m, ifp) { \
struct ifnet *_rcvif = mbuf_pkthdr_rcvif(m); \
{ 0, 0, 0, 0, 0 }
};
-/*
- * Internal functions.
- */
-
-static int
+int
proto_hash_value(u_int32_t protocol_family)
{
/*
return (0);
case PF_INET6:
return (1);
- case PF_APPLETALK:
- return (2);
case PF_VLAN:
- return (3);
+ return (2);
case PF_UNSPEC:
default:
- return (4);
+ return (3);
}
}
lck_rw_done(&ifp->if_lock);
}
+#if INET
+__private_extern__ void
+if_inetdata_lock_shared(struct ifnet *ifp)
+{
+ lck_rw_lock_shared(&ifp->if_inetdata_lock);
+}
+
+__private_extern__ void
+if_inetdata_lock_exclusive(struct ifnet *ifp)
+{
+ lck_rw_lock_exclusive(&ifp->if_inetdata_lock);
+}
+
+__private_extern__ void
+if_inetdata_lock_done(struct ifnet *ifp)
+{
+ lck_rw_done(&ifp->if_inetdata_lock);
+}
+#endif
+
+#if INET6
+__private_extern__ void
+if_inet6data_lock_shared(struct ifnet *ifp)
+{
+ lck_rw_lock_shared(&ifp->if_inet6data_lock);
+}
+
+__private_extern__ void
+if_inet6data_lock_exclusive(struct ifnet *ifp)
+{
+ lck_rw_lock_exclusive(&ifp->if_inet6data_lock);
+}
+
+__private_extern__ void
+if_inet6data_lock_done(struct ifnet *ifp)
+{
+ lck_rw_done(&ifp->if_inet6data_lock);
+}
+#endif
+
__private_extern__ void
ifnet_head_lock_shared(void)
{
event_data_len = sizeof(struct net_event_data);
}
- strncpy(&event_data->if_name[0], ifp->if_name, IFNAMSIZ);
+ strlcpy(&event_data->if_name[0], ifp->if_name, IFNAMSIZ);
event_data->if_family = ifp->if_family;
event_data->if_unit = (u_int32_t) ifp->if_unit;
ret = 0;
}
+ if (ifp->if_ipv4_stat == NULL) {
+ MALLOC(ifp->if_ipv4_stat, struct if_tcp_ecn_stat *,
+ sizeof(struct if_tcp_ecn_stat), M_TEMP, M_WAITOK|M_ZERO);
+ if (ifp->if_ipv4_stat == NULL) {
+ ret = ENOMEM;
+ goto end;
+ }
+ }
+
+ if (ifp->if_ipv6_stat == NULL) {
+ MALLOC(ifp->if_ipv6_stat, struct if_tcp_ecn_stat *,
+ sizeof(struct if_tcp_ecn_stat), M_TEMP, M_WAITOK|M_ZERO);
+ if (ifp->if_ipv6_stat == NULL) {
+ ret = ENOMEM;
+ goto end;
+ }
+ }
end:
if (ret != 0) {
if (ifp->if_tcp_stat != NULL) {
zfree(dlif_udpstat_zone, *pbuf);
ifp->if_udp_stat = NULL;
}
+ if (ifp->if_ipv4_stat != NULL) {
+ FREE(ifp->if_ipv4_stat, M_TEMP);
+ ifp->if_ipv4_stat = NULL;
+ }
+ if (ifp->if_ipv6_stat != NULL) {
+ FREE(ifp->if_ipv6_stat, M_TEMP);
+ ifp->if_ipv6_stat = NULL;
+ }
}
return (ret);
func = dlil_rxpoll_input_thread_func;
VERIFY(inp != dlil_main_input_thread);
(void) snprintf(inp->input_name, DLIL_THREADNAME_LEN,
- "%s%d_input_poll", ifp->if_name, ifp->if_unit);
+ "%s_input_poll", if_name(ifp));
} else {
func = dlil_input_thread_func;
VERIFY(inp != dlil_main_input_thread);
(void) snprintf(inp->input_name, DLIL_THREADNAME_LEN,
- "%s%d_input", ifp->if_name, ifp->if_unit);
+ "%s_input", if_name(ifp));
}
VERIFY(inp->input_thr == THREAD_NULL);
*/
if (ifp != NULL && net_rxpoll && (ifp->if_eflags & IFEF_RXPOLL)) {
limit = MAX(if_rcvq_maxlen, IF_RCVQ_MINLEN);
- dlil_rxpoll_calc_limits(inp);
+ (void) dlil_rxpoll_set_params(ifp, NULL, FALSE);
} else {
limit = (u_int32_t)-1;
}
panic_plain("%s: couldn't create main input thread", __func__);
/* NOTREACHED */
} else {
- panic_plain("%s: couldn't create %s%d input thread", __func__,
- ifp->if_name, ifp->if_unit);
+ panic_plain("%s: couldn't create %s input thread", __func__,
+ if_name(ifp));
/* NOTREACHED */
}
OSAddAtomic(1, &cur_dlil_input_threads);
#endif /* IFNET_INPUT_SANITY_CHK */
if (dlil_verbose) {
- printf("%s%d: input thread terminated\n",
- ifp->if_name, ifp->if_unit);
+ printf("%s: input thread terminated\n",
+ if_name(ifp));
}
/* for the extra refcnt from kernel_thread_start() */
IF_DATA_REQUIRE_ALIGNED_64(ifi_iqdrops);
IF_DATA_REQUIRE_ALIGNED_64(ifi_noproto);
IF_DATA_REQUIRE_ALIGNED_64(ifi_alignerrs);
+ IF_DATA_REQUIRE_ALIGNED_64(ifi_dt_bytes);
+ IF_DATA_REQUIRE_ALIGNED_64(ifi_fpackets);
+ IF_DATA_REQUIRE_ALIGNED_64(ifi_fbytes);
IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_ipackets);
IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_ierrors)
IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_iqdrops);
IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_noproto);
IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_alignerrs);
+ IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_dt_bytes);
+ IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_fpackets);
+ IFNET_IF_DATA_REQUIRE_ALIGNED_64(ifi_fbytes);
/*
* These IF_HWASSIST_ flags must be equal to their IFNET_* counterparts.
_CASSERT(IF_HWASSIST_CSUM_UDP == IFNET_CSUM_UDP);
_CASSERT(IF_HWASSIST_CSUM_IP_FRAGS == IFNET_CSUM_FRAGMENT);
_CASSERT(IF_HWASSIST_CSUM_FRAGMENT == IFNET_IP_FRAGMENT);
- _CASSERT(IF_HWASSIST_CSUM_TCP_SUM16 == IFNET_CSUM_SUM16);
+ _CASSERT(IF_HWASSIST_CSUM_TCPIPV6 == IFNET_CSUM_TCPIPV6);
+ _CASSERT(IF_HWASSIST_CSUM_UDPIPV6 == IFNET_CSUM_UDPIPV6);
+ _CASSERT(IF_HWASSIST_CSUM_FRAGMENT_IPV6 == IFNET_IPV6_FRAGMENT);
+ _CASSERT(IF_HWASSIST_CSUM_PARTIAL == IFNET_CSUM_PARTIAL);
_CASSERT(IF_HWASSIST_VLAN_TAGGING == IFNET_VLAN_TAGGING);
_CASSERT(IF_HWASSIST_VLAN_MTU == IFNET_VLAN_MTU);
_CASSERT(IF_HWASSIST_TSO_V4 == IFNET_TSO_IPV4);
_CASSERT(IF_HWASSIST_TSO_V6 == IFNET_TSO_IPV6);
+ /*
+ * ... as well as the mbuf checksum flags counterparts.
+ */
+ _CASSERT(CSUM_IP == IF_HWASSIST_CSUM_IP);
+ _CASSERT(CSUM_TCP == IF_HWASSIST_CSUM_TCP);
+ _CASSERT(CSUM_UDP == IF_HWASSIST_CSUM_UDP);
+ _CASSERT(CSUM_IP_FRAGS == IF_HWASSIST_CSUM_IP_FRAGS);
+ _CASSERT(CSUM_FRAGMENT == IF_HWASSIST_CSUM_FRAGMENT);
+ _CASSERT(CSUM_TCPIPV6 == IF_HWASSIST_CSUM_TCPIPV6);
+ _CASSERT(CSUM_UDPIPV6 == IF_HWASSIST_CSUM_UDPIPV6);
+ _CASSERT(CSUM_FRAGMENT_IPV6 == IF_HWASSIST_CSUM_FRAGMENT_IPV6);
+ _CASSERT(CSUM_PARTIAL == IF_HWASSIST_CSUM_PARTIAL);
+ _CASSERT(CSUM_VLAN_TAG_VALID == IF_HWASSIST_VLAN_TAGGING);
+
/*
* Make sure we have at least IF_LLREACH_MAXLEN in the llreach info.
*/
_CASSERT(IF_LLREACH_MAXLEN <= IF_LLREACHINFO_ADDRLEN);
_CASSERT(IFNET_LLREACHINFO_ADDRLEN == IF_LLREACHINFO_ADDRLEN);
+ _CASSERT(IFRLOGF_DLIL == IFNET_LOGF_DLIL);
+ _CASSERT(IFRLOGF_FAMILY == IFNET_LOGF_FAMILY);
+ _CASSERT(IFRLOGF_DRIVER == IFNET_LOGF_DRIVER);
+ _CASSERT(IFRLOGF_FIRMWARE == IFNET_LOGF_FIRMWARE);
+
+ _CASSERT(IFRLOGCAT_CONNECTIVITY == IFNET_LOGCAT_CONNECTIVITY);
+ _CASSERT(IFRLOGCAT_QUALITY == IFNET_LOGCAT_QUALITY);
+ _CASSERT(IFRLOGCAT_PERFORMANCE == IFNET_LOGCAT_PERFORMANCE);
+
+ _CASSERT(IFRTYPE_FAMILY_ANY == IFNET_FAMILY_ANY);
+ _CASSERT(IFRTYPE_FAMILY_LOOPBACK == IFNET_FAMILY_LOOPBACK);
+ _CASSERT(IFRTYPE_FAMILY_ETHERNET == IFNET_FAMILY_ETHERNET);
+ _CASSERT(IFRTYPE_FAMILY_SLIP == IFNET_FAMILY_SLIP);
+ _CASSERT(IFRTYPE_FAMILY_TUN == IFNET_FAMILY_TUN);
+ _CASSERT(IFRTYPE_FAMILY_VLAN == IFNET_FAMILY_VLAN);
+ _CASSERT(IFRTYPE_FAMILY_PPP == IFNET_FAMILY_PPP);
+ _CASSERT(IFRTYPE_FAMILY_PVC == IFNET_FAMILY_PVC);
+ _CASSERT(IFRTYPE_FAMILY_DISC == IFNET_FAMILY_DISC);
+ _CASSERT(IFRTYPE_FAMILY_MDECAP == IFNET_FAMILY_MDECAP);
+ _CASSERT(IFRTYPE_FAMILY_GIF == IFNET_FAMILY_GIF);
+ _CASSERT(IFRTYPE_FAMILY_FAITH == IFNET_FAMILY_FAITH);
+ _CASSERT(IFRTYPE_FAMILY_STF == IFNET_FAMILY_STF);
+ _CASSERT(IFRTYPE_FAMILY_FIREWIRE == IFNET_FAMILY_FIREWIRE);
+ _CASSERT(IFRTYPE_FAMILY_BOND == IFNET_FAMILY_BOND);
+ _CASSERT(IFRTYPE_FAMILY_CELLULAR == IFNET_FAMILY_CELLULAR);
+
+ _CASSERT(IFRTYPE_SUBFAMILY_ANY == IFNET_SUBFAMILY_ANY);
+ _CASSERT(IFRTYPE_SUBFAMILY_USB == IFNET_SUBFAMILY_USB);
+ _CASSERT(IFRTYPE_SUBFAMILY_BLUETOOTH == IFNET_SUBFAMILY_BLUETOOTH);
+ _CASSERT(IFRTYPE_SUBFAMILY_WIFI == IFNET_SUBFAMILY_WIFI);
+ _CASSERT(IFRTYPE_SUBFAMILY_THUNDERBOLT == IFNET_SUBFAMILY_THUNDERBOLT);
+ _CASSERT(IFRTYPE_SUBFAMILY_RESERVED == IFNET_SUBFAMILY_RESERVED);
+
+ _CASSERT(DLIL_MODIDLEN == IFNET_MODIDLEN);
+ _CASSERT(DLIL_MODARGLEN == IFNET_MODARGLEN);
+
PE_parse_boot_argn("net_affinity", &net_affinity,
sizeof (net_affinity));
dlil_lck_attributes);
lck_mtx_init(&dlil_ifnet_lock, dlil_lock_group, dlil_lck_attributes);
- ifnet_fc_init();
+ /* Setup interface flow control related items */
+ lck_mtx_init(&ifnet_fc_lock, dlil_lock_group, dlil_lck_attributes);
- lck_attr_free(dlil_lck_attributes);
- dlil_lck_attributes = NULL;
+ ifnet_fc_zone_size = sizeof (struct ifnet_fc_entry);
+ ifnet_fc_zone = zinit(ifnet_fc_zone_size,
+ IFNET_FC_ZONE_MAX * ifnet_fc_zone_size, 0, IFNET_FC_ZONE_NAME);
+ if (ifnet_fc_zone == NULL) {
+ panic_plain("%s: failed allocating %s", __func__,
+ IFNET_FC_ZONE_NAME);
+ /* NOTREACHED */
+ }
+ zone_change(ifnet_fc_zone, Z_EXPAND, TRUE);
+ zone_change(ifnet_fc_zone, Z_CALLERACCT, FALSE);
+ /* Initialize interface address subsystem */
ifa_init();
+
+#if PF
+ /* Initialize the packet filter */
+ pfinit();
+#endif /* PF */
+
+ /* Initialize queue algorithms */
+ classq_init();
+
+ /* Initialize packet schedulers */
+ pktsched_init();
+
+ /* Initialize flow advisory subsystem */
+ flowadv_init();
+
+ /* Initialize the pktap virtual interface */
+ pktap_init();
+
+#if DEBUG
+ /* Run self-tests */
+ dlil_verify_sum16();
+#endif /* DEBUG */
+
/*
* Create and start up the main DLIL input thread and the interface
* detacher threads once everything is initialized.
/* NOTREACHED */
}
thread_deallocate(thread);
-
-#if PF
- /* Initialize the packet filter */
- pfinit();
-#endif /* PF */
-
- /* Initialize queue algorithms */
- classq_init();
-
- /* Initialize packet schedulers */
- pktsched_init();
}
static void
__private_extern__ int
dlil_attach_filter(struct ifnet *ifp, const struct iff_filter *if_filter,
- interface_filter_t *filter_ref)
+ interface_filter_t *filter_ref, u_int32_t flags)
{
int retval = 0;
struct ifnet_filter *filter = NULL;
bzero(filter, dlif_filt_size);
/* refcnt held above during lookup */
+ filter->filt_flags = flags;
filter->filt_ifp = ifp;
filter->filt_cookie = if_filter->iff_cookie;
filter->filt_name = if_filter->iff_name;
* Bump filter count and route_generation ID to let TCP
* know it shouldn't do TSO on this connection
*/
- OSAddAtomic(1, &dlil_filter_count);
- if (use_routegenid)
+ if ((filter->filt_flags & DLIL_IFF_TSO) == 0) {
+ OSAddAtomic(1, &dlil_filter_disable_tso_count);
routegenid_update();
-
+ }
if (dlil_verbose) {
- printf("%s%d: %s filter attached\n", ifp->if_name,
- ifp->if_unit, if_filter->iff_name);
+ printf("%s: %s filter attached\n", if_name(ifp),
+ if_filter->iff_name);
}
done:
ifnet_head_done();
if (retval != 0 && ifp != NULL) {
- DLIL_PRINTF("%s%d: failed to attach %s (err=%d)\n",
- ifp->if_name, ifp->if_unit, if_filter->iff_name, retval);
+ DLIL_PRINTF("%s: failed to attach %s (err=%d)\n",
+ if_name(ifp), if_filter->iff_name, retval);
}
if (retval != 0 && filter != NULL)
zfree(dlif_filt_zone, filter);
if_flt_monitor_leave(ifp);
lck_mtx_unlock(&ifp->if_flt_lock);
if (dlil_verbose) {
- printf("%s%d: %s filter detached\n",
- ifp->if_name, ifp->if_unit,
- filter->filt_name);
+ printf("%s: %s filter detached\n",
+ if_name(ifp), filter->filt_name);
}
goto destroy;
}
* Decrease filter count and route_generation ID to let TCP
* know it should reevalute doing TSO or not
*/
- OSAddAtomic(-1, &dlil_filter_count);
- if (use_routegenid)
+ if ((filter->filt_flags & DLIL_IFF_TSO) == 0) {
+ OSAddAtomic(-1, &dlil_filter_disable_tso_count);
routegenid_update();
-
+ }
done:
if (retval != 0) {
DLIL_PRINTF("failed to detach %s filter (err=%d)\n",
m_cnt = qlen(&inp->rcvq_pkts);
m = _getq_all(&inp->rcvq_pkts);
- /* Packets exclusive for lo0 */
+ /* Packets exclusive to lo0 */
m_cnt_loop = qlen(&inpm->lo_rcvq_pkts);
m_loop = _getq_all(&inpm->lo_rcvq_pkts);
u_int32_t m_cnt, m_size, poll_req = 0;
ifnet_model_t mode;
struct timespec now, delta;
+ u_int64_t ival;
lck_mtx_lock_spin(&inp->input_lck);
+ if ((ival = inp->rxpoll_ival) < IF_RXPOLL_INTERVALTIME_MIN)
+ ival = IF_RXPOLL_INTERVALTIME_MIN;
+
/* Link parameters changed? */
if (ifp->if_poll_update != 0) {
ifp->if_poll_update = 0;
- dlil_rxpoll_calc_limits(inp);
+ (void) dlil_rxpoll_set_params(ifp, NULL, TRUE);
}
/* Current operating mode */
mode = inp->mode;
/* Wait until there is work to be done */
- while (!(inp->input_waiting & ~DLIL_INPUT_RUNNING) &&
- qempty(&inp->rcvq_pkts)) {
+ while (!(inp->input_waiting & ~DLIL_INPUT_RUNNING)) {
inp->input_waiting &= ~DLIL_INPUT_RUNNING;
(void) msleep(&inp->input_waiting, &inp->input_lck,
(PZERO - 1) | PSPIN, inp->input_name, NULL);
net_timersub(&now, &inp->dbg_lasttime, &delta);
if (net_timercmp(&delta, &dlil_dbgrate, >=)) {
*(&inp->dbg_lasttime) = *(&now);
- printf("%s%d: [%s] pkts avg %d max %d "
+ printf("%s: [%s] pkts avg %d max %d "
"limits [%d/%d], wreq avg %d "
"limits [%d/%d], bytes avg %d "
- "limits [%d/%d]\n", ifp->if_name,
- ifp->if_unit, (inp->mode ==
+ "limits [%d/%d]\n", if_name(ifp),
+ (inp->mode ==
IFNET_MODEL_INPUT_POLL_ON) ?
"ON" : "OFF", inp->rxpoll_pavg,
inp->rxpoll_pmax,
if (inp->rxpoll_pavg <= inp->rxpoll_plowat &&
inp->rxpoll_bavg <= inp->rxpoll_blowat &&
- inp->rxpoll_wavg <= inp->rxpoll_wlowat &&
inp->mode != IFNET_MODEL_INPUT_POLL_OFF) {
mode = IFNET_MODEL_INPUT_POLL_OFF;
} else if (inp->rxpoll_pavg >= inp->rxpoll_phiwat &&
errno_t err;
if (dlil_verbose) {
- printf("%s%d: polling is now %s, "
+ printf("%s: polling is now %s, "
"pkts avg %d max %d limits [%d/%d], "
"wreq avg %d limits [%d/%d], "
"bytes avg %d limits [%d/%d]\n",
- ifp->if_name, ifp->if_unit,
+ if_name(ifp),
(mode == IFNET_MODEL_INPUT_POLL_ON) ?
"ON" : "OFF", inp->rxpoll_pavg,
inp->rxpoll_pmax, inp->rxpoll_plowat,
if ((err = ((*ifp->if_input_ctl)(ifp,
IFNET_CTL_SET_INPUT_MODEL, sizeof (p), &p))) != 0) {
- printf("%s%d: error setting polling mode "
- "to %s (%d)\n", ifp->if_name, ifp->if_unit,
+ printf("%s: error setting polling mode "
+ "to %s (%d)\n", if_name(ifp),
(mode == IFNET_MODEL_INPUT_POLL_ON) ?
"ON" : "OFF", err);
}
break;
case IFNET_MODEL_INPUT_POLL_ON:
- net_nsectimer(&if_rxpoll_interval_time, &ts);
+ net_nsectimer(&ival, &ts);
ifnet_set_poll_cycle(ifp, &ts);
ifnet_poll(ifp);
inp->rxpoll_onreq++;
VERIFY(0); /* we should never get here */
}
-static void
-dlil_rxpoll_calc_limits(struct dlil_threading_info *inp)
+/*
+ * Must be called on an attached ifnet (caller is expected to check.)
+ * Caller may pass NULL for poll parameters to indicate "auto-tuning."
+ */
+errno_t
+dlil_rxpoll_set_params(struct ifnet *ifp, struct ifnet_poll_params *p,
+ boolean_t locked)
{
- struct ifnet *ifp = inp->ifp;
+ struct dlil_threading_info *inp;
u_int64_t sample_holdtime, inbw;
- VERIFY(inp != dlil_main_input_thread);
- VERIFY(ifp != NULL && (ifp->if_eflags & IFEF_RXPOLL));
+ VERIFY(ifp != NULL);
+ if (!(ifp->if_eflags & IFEF_RXPOLL) || (inp = ifp->if_inp) == NULL)
+ return (ENXIO);
+
+ if (p != NULL) {
+ if ((p->packets_lowat == 0 && p->packets_hiwat != 0) ||
+ (p->packets_lowat != 0 && p->packets_hiwat == 0))
+ return (EINVAL);
+ if (p->packets_lowat != 0 && /* hiwat must be non-zero */
+ p->packets_lowat >= p->packets_hiwat)
+ return (EINVAL);
+ if ((p->bytes_lowat == 0 && p->bytes_hiwat != 0) ||
+ (p->bytes_lowat != 0 && p->bytes_hiwat == 0))
+ return (EINVAL);
+ if (p->bytes_lowat != 0 && /* hiwat must be non-zero */
+ p->bytes_lowat >= p->bytes_hiwat)
+ return (EINVAL);
+ if (p->interval_time != 0 &&
+ p->interval_time < IF_RXPOLL_INTERVALTIME_MIN)
+ p->interval_time = IF_RXPOLL_INTERVALTIME_MIN;
+ }
+
+ if (!locked)
+ lck_mtx_lock(&inp->input_lck);
- if ((inbw = ifnet_input_linkrate(ifp)) == 0) {
+ lck_mtx_assert(&inp->input_lck, LCK_MTX_ASSERT_OWNED);
+
+ /*
+ * Normally, we'd reset the parameters to the auto-tuned values
+ * if the the input thread detects a change in link rate. If the
+ * driver provides its own parameters right after a link rate
+ * changes, but before the input thread gets to run, we want to
+ * make sure to keep the driver's values. Clearing if_poll_update
+ * will achieve that.
+ */
+ if (p != NULL && !locked && ifp->if_poll_update != 0)
+ ifp->if_poll_update = 0;
+
+ if ((inbw = ifnet_input_linkrate(ifp)) == 0 && p == NULL) {
sample_holdtime = 0; /* polling is disabled */
inp->rxpoll_wlowat = inp->rxpoll_plowat =
inp->rxpoll_blowat = 0;
inp->rxpoll_whiwat = inp->rxpoll_phiwat =
inp->rxpoll_bhiwat = (u_int32_t)-1;
+ inp->rxpoll_plim = 0;
+ inp->rxpoll_ival = IF_RXPOLL_INTERVALTIME_MIN;
} else {
+ u_int32_t plowat, phiwat, blowat, bhiwat, plim;
+ u_int64_t ival;
unsigned int n, i;
- n = 0;
- for (i = 0; rxpoll_tbl[i].speed != 0; i++) {
+ for (n = 0, i = 0; rxpoll_tbl[i].speed != 0; i++) {
if (inbw < rxpoll_tbl[i].speed)
break;
n = i;
}
+ /* auto-tune if caller didn't specify a value */
+ plowat = ((p == NULL || p->packets_lowat == 0) ?
+ rxpoll_tbl[n].plowat : p->packets_lowat);
+ phiwat = ((p == NULL || p->packets_hiwat == 0) ?
+ rxpoll_tbl[n].phiwat : p->packets_hiwat);
+ blowat = ((p == NULL || p->bytes_lowat == 0) ?
+ rxpoll_tbl[n].blowat : p->bytes_lowat);
+ bhiwat = ((p == NULL || p->bytes_hiwat == 0) ?
+ rxpoll_tbl[n].bhiwat : p->bytes_hiwat);
+ plim = ((p == NULL || p->packets_limit == 0) ?
+ if_rxpoll_max : p->packets_limit);
+ ival = ((p == NULL || p->interval_time == 0) ?
+ if_rxpoll_interval_time : p->interval_time);
+
+ VERIFY(plowat != 0 && phiwat != 0);
+ VERIFY(blowat != 0 && bhiwat != 0);
+ VERIFY(ival >= IF_RXPOLL_INTERVALTIME_MIN);
+
sample_holdtime = if_rxpoll_sample_holdtime;
inp->rxpoll_wlowat = if_rxpoll_wlowat;
inp->rxpoll_whiwat = if_rxpoll_whiwat;
- inp->rxpoll_plowat = rxpoll_tbl[n].plowat;
- inp->rxpoll_phiwat = rxpoll_tbl[n].phiwat;
- inp->rxpoll_blowat = rxpoll_tbl[n].blowat;
- inp->rxpoll_bhiwat = rxpoll_tbl[n].bhiwat;
+ inp->rxpoll_plowat = plowat;
+ inp->rxpoll_phiwat = phiwat;
+ inp->rxpoll_blowat = blowat;
+ inp->rxpoll_bhiwat = bhiwat;
+ inp->rxpoll_plim = plim;
+ inp->rxpoll_ival = ival;
}
net_nsectimer(&if_rxpoll_mode_holdtime, &inp->mode_holdtime);
net_nsectimer(&sample_holdtime, &inp->sample_holdtime);
if (dlil_verbose) {
- printf("%s%d: speed %llu bps, sample per %llu nsec, "
- "pkt limits [%d/%d], wreq limits [%d/%d], "
- "bytes limits [%d/%d]\n", ifp->if_name, ifp->if_unit,
- inbw, sample_holdtime, inp->rxpoll_plowat,
- inp->rxpoll_phiwat, inp->rxpoll_wlowat, inp->rxpoll_whiwat,
- inp->rxpoll_blowat, inp->rxpoll_bhiwat);
+ printf("%s: speed %llu bps, sample per %llu nsec, "
+ "poll interval %llu nsec, pkts per poll %u, "
+ "pkt limits [%u/%u], wreq limits [%u/%u], "
+ "bytes limits [%u/%u]\n", if_name(ifp),
+ inbw, sample_holdtime, inp->rxpoll_ival, inp->rxpoll_plim,
+ inp->rxpoll_plowat, inp->rxpoll_phiwat, inp->rxpoll_wlowat,
+ inp->rxpoll_whiwat, inp->rxpoll_blowat, inp->rxpoll_bhiwat);
}
+
+ if (!locked)
+ lck_mtx_unlock(&inp->input_lck);
+
+ return (0);
+}
+
+/*
+ * Must be called on an attached ifnet (caller is expected to check.)
+ */
+errno_t
+dlil_rxpoll_get_params(struct ifnet *ifp, struct ifnet_poll_params *p)
+{
+ struct dlil_threading_info *inp;
+
+ VERIFY(ifp != NULL && p != NULL);
+ if (!(ifp->if_eflags & IFEF_RXPOLL) || (inp = ifp->if_inp) == NULL)
+ return (ENXIO);
+
+ bzero(p, sizeof (*p));
+
+ lck_mtx_lock(&inp->input_lck);
+ p->packets_limit = inp->rxpoll_plim;
+ p->packets_lowat = inp->rxpoll_plowat;
+ p->packets_hiwat = inp->rxpoll_phiwat;
+ p->bytes_lowat = inp->rxpoll_blowat;
+ p->bytes_hiwat = inp->rxpoll_bhiwat;
+ p->interval_time = inp->rxpoll_ival;
+ lck_mtx_unlock(&inp->input_lck);
+
+ return (0);
}
errno_t
struct dlil_threading_info *inp;
u_int32_t m_cnt = 0, m_size = 0;
+ if ((m_head == NULL && !poll) || (s == NULL && ext)) {
+ if (m_head != NULL)
+ mbuf_freem_list(m_head);
+ return (EINVAL);
+ }
+
+ VERIFY(m_head != NULL || (s == NULL && m_tail == NULL && !ext && poll));
+ VERIFY(m_tail == NULL || ext);
+ VERIFY(s != NULL || !ext);
+
/*
* Drop the packet(s) if the parameters are invalid, or if the
* interface is no longer attached; else hold an IO refcnt to
* prevent it from being detached (will be released below.)
*/
- if (ifp == NULL || m_head == NULL || (s == NULL && ext) ||
- (ifp != lo_ifp && !ifnet_is_attached(ifp, 1))) {
+ if (ifp == NULL || (ifp != lo_ifp && !ifnet_is_attached(ifp, 1))) {
if (m_head != NULL)
mbuf_freem_list(m_head);
return (EINVAL);
}
- VERIFY(m_tail == NULL || ext);
- VERIFY(s != NULL || !ext);
-
if (m_tail == NULL) {
last = m_head;
- while (1) {
+ while (m_head != NULL) {
#if IFNET_INPUT_SANITY_CHK
if (dlil_input_sanity_check != 0)
DLIL_INPUT_CHECK(last, ifp);
}
if (last != m_tail) {
- panic_plain("%s: invalid input packet chain for %s%d, "
- "tail mbuf %p instead of %p\n", __func__, ifp->if_name,
- ifp->if_unit, m_tail, last);
+ panic_plain("%s: invalid input packet chain for %s, "
+ "tail mbuf %p instead of %p\n", __func__, if_name(ifp),
+ m_tail, last);
}
/*
* m_size is just an approximation.
*/
if (ext && s->packets_in != m_cnt) {
- panic_plain("%s: input packet count mismatch for %s%d, "
- "%d instead of %d\n", __func__, ifp->if_name,
- ifp->if_unit, s->packets_in, m_cnt);
+ panic_plain("%s: input packet count mismatch for %s, "
+ "%d instead of %d\n", __func__, if_name(ifp),
+ s->packets_in, m_cnt);
}
if ((inp = ifp->if_inp) == NULL)
lck_mtx_lock_spin(&inp->input_lck);
}
+ VERIFY(m_head != NULL || (m_tail == NULL && m_cnt == 0));
+
/*
* Because of loopbacked multicast we cannot stuff the ifp in
* the rcvif of the packet header: loopback (lo0) packets use a
* on their way up the stack. Packets for other interfaces without
* dedicated input threads go to the regular list.
*/
- if (inp == dlil_main_input_thread && ifp == lo_ifp) {
- struct dlil_main_threading_info *inpm =
- (struct dlil_main_threading_info *)inp;
- _addq_multi(&inpm->lo_rcvq_pkts, m_head, m_tail, m_cnt, m_size);
- } else {
- _addq_multi(&inp->rcvq_pkts, m_head, m_tail, m_cnt, m_size);
+ if (m_head != NULL) {
+ if (inp == dlil_main_input_thread && ifp == lo_ifp) {
+ struct dlil_main_threading_info *inpm =
+ (struct dlil_main_threading_info *)inp;
+ _addq_multi(&inpm->lo_rcvq_pkts, m_head, m_tail,
+ m_cnt, m_size);
+ } else {
+ _addq_multi(&inp->rcvq_pkts, m_head, m_tail,
+ m_cnt, m_size);
+ }
}
#if IFNET_INPUT_SANITY_CHK
count++;
if (count != m_cnt) {
- panic_plain("%s%d: invalid packet count %d "
- "(expected %d)\n", ifp->if_name, ifp->if_unit,
+ panic_plain("%s: invalid packet count %d "
+ "(expected %d)\n", if_name(ifp),
count, m_cnt);
/* NOTREACHED */
}
return (0);
}
-void
-ifnet_start(struct ifnet *ifp)
+static void
+ifnet_start_common(struct ifnet *ifp, int resetfc)
{
+ if (!(ifp->if_eflags & IFEF_TXSTART))
+ return;
/*
- * If the starter thread is inactive, signal it to do work.
+ * If the starter thread is inactive, signal it to do work,
+ * unless the interface is being flow controlled from below,
+ * e.g. a virtual interface being flow controlled by a real
+ * network interface beneath it.
*/
lck_mtx_lock_spin(&ifp->if_start_lock);
+ if (resetfc) {
+ ifp->if_start_flags &= ~IFSF_FLOW_CONTROLLED;
+ } else if (ifp->if_start_flags & IFSF_FLOW_CONTROLLED) {
+ lck_mtx_unlock(&ifp->if_start_lock);
+ return;
+ }
ifp->if_start_req++;
- if (!ifp->if_start_active && ifp->if_start_thread != THREAD_NULL) {
+ if (!ifp->if_start_active && ifp->if_start_thread != THREAD_NULL &&
+ (resetfc || !(ifp->if_eflags & IFEF_ENQUEUE_MULTI) ||
+ IFCQ_LEN(&ifp->if_snd) >= ifp->if_start_delay_qlen
+ || ifp->if_start_delayed == 0)) {
wakeup_one((caddr_t)&ifp->if_start_thread);
}
lck_mtx_unlock(&ifp->if_start_lock);
}
+void
+ifnet_start(struct ifnet *ifp)
+{
+ ifnet_start_common(ifp, 0);
+}
+
static void
ifnet_start_thread_fn(void *v, wait_result_t w)
{
char ifname[IFNAMSIZ + 1];
struct timespec *ts = NULL;
struct ifclassq *ifq = &ifp->if_snd;
+ struct timespec delay_start_ts;
/*
* Treat the dedicated starter thread for lo0 as equivalent to
}
}
- snprintf(ifname, sizeof (ifname), "%s%d_starter",
- ifp->if_name, ifp->if_unit);
+ snprintf(ifname, sizeof (ifname), "%s_starter",
+ if_name(ifp));
lck_mtx_lock_spin(&ifp->if_start_lock);
for (;;) {
- (void) msleep(&ifp->if_start_thread, &ifp->if_start_lock,
- (PZERO - 1) | PSPIN, ifname, ts);
+ if (ifp->if_start_thread != NULL)
+ (void) msleep(&ifp->if_start_thread, &ifp->if_start_lock,
+ (PZERO - 1) | PSPIN, ifname, ts);
/* interface is detached? */
if (ifp->if_start_thread == THREAD_NULL) {
ifnet_purge(ifp);
if (dlil_verbose) {
- printf("%s%d: starter thread terminated\n",
- ifp->if_name, ifp->if_unit);
+ printf("%s: starter thread terminated\n",
+ if_name(ifp));
}
/* for the extra refcnt from kernel_thread_start() */
}
ifp->if_start_active = 1;
+
for (;;) {
u_int32_t req = ifp->if_start_req;
-
+ if (!IFCQ_IS_EMPTY(ifq) &&
+ (ifp->if_eflags & IFEF_ENQUEUE_MULTI) &&
+ ifp->if_start_delayed == 0 &&
+ IFCQ_LEN(ifq) < ifp->if_start_delay_qlen &&
+ (ifp->if_eflags & IFEF_DELAY_START)) {
+ ifp->if_start_delayed = 1;
+ ifnet_start_delayed++;
+ break;
+ } else {
+ ifp->if_start_delayed = 0;
+ }
lck_mtx_unlock(&ifp->if_start_lock);
+
+ /*
+ * If no longer attached, don't call start because ifp
+ * is being destroyed; else hold an IO refcnt to
+ * prevent the interface from being detached (will be
+ * released below.)
+ */
+ if (!ifnet_is_attached(ifp, 1)) {
+ lck_mtx_lock_spin(&ifp->if_start_lock);
+ break;
+ }
+
/* invoke the driver's start routine */
((*ifp->if_start)(ifp));
+
+ /*
+ * Release the io ref count taken by ifnet_is_attached.
+ */
+ ifnet_decr_iorefcnt(ifp);
+
lck_mtx_lock_spin(&ifp->if_start_lock);
/* if there's no pending request, we're done */
if (req == ifp->if_start_req)
break;
}
+
ifp->if_start_req = 0;
ifp->if_start_active = 0;
+
/*
* Wakeup N ns from now if rate-controlled by TBR, and if
* there are still packets in the send queue which haven't
ts = ((IFCQ_TBR_IS_ENABLED(ifq) && !IFCQ_IS_EMPTY(ifq)) ?
&ifp->if_start_cycle : NULL);
+ if (ts == NULL && ifp->if_start_delayed == 1) {
+ delay_start_ts.tv_sec = 0;
+ delay_start_ts.tv_nsec = ifp->if_start_delay_timeout;
+ ts = &delay_start_ts;
+ }
+
if (ts != NULL && ts->tv_sec == 0 && ts->tv_nsec == 0)
ts = NULL;
}
/* NOTREACHED */
- lck_mtx_unlock(&ifp->if_start_lock);
- VERIFY(0); /* we should never get here */
}
void
*(&ifp->if_start_cycle) = *ts;
if (ts != NULL && ts->tv_nsec != 0 && dlil_verbose)
- printf("%s%d: restart interval set to %lu nsec\n",
- ifp->if_name, ifp->if_unit, ts->tv_nsec);
+ printf("%s: restart interval set to %lu nsec\n",
+ if_name(ifp), ts->tv_nsec);
}
static void
struct timespec *ts = NULL;
struct ifnet_stat_increment_param s;
- snprintf(ifname, sizeof (ifname), "%s%d_poller",
- ifp->if_name, ifp->if_unit);
+ snprintf(ifname, sizeof (ifname), "%s_poller",
+ if_name(ifp));
bzero(&s, sizeof (s));
lck_mtx_lock_spin(&ifp->if_poll_lock);
lck_mtx_unlock(&ifp->if_poll_lock);
if (dlil_verbose) {
- printf("%s%d: poller thread terminated\n",
- ifp->if_name, ifp->if_unit);
+ printf("%s: poller thread terminated\n",
+ if_name(ifp));
}
/* for the extra refcnt from kernel_thread_start() */
break;
}
- m_lim = (if_rxpoll_max != 0) ? if_rxpoll_max :
+ m_lim = (inp->rxpoll_plim != 0) ? inp->rxpoll_plim :
MAX((qlimit(&inp->rcvq_pkts)),
(inp->rxpoll_phiwat << 2));
if (dlil_verbose > 1) {
- printf("%s%d: polling up to %d pkts, "
+ printf("%s: polling up to %d pkts, "
"pkts avg %d max %d, wreq avg %d, "
"bytes avg %d\n",
- ifp->if_name, ifp->if_unit, m_lim,
+ if_name(ifp), m_lim,
inp->rxpoll_pavg, inp->rxpoll_pmax,
inp->rxpoll_wavg, inp->rxpoll_bavg);
}
VERIFY(m_tail != NULL && m_cnt > 0);
if (dlil_verbose > 1) {
- printf("%s%d: polled %d pkts, "
+ printf("%s: polled %d pkts, "
"pkts avg %d max %d, wreq avg %d, "
"bytes avg %d\n",
- ifp->if_name, ifp->if_unit, m_cnt,
+ if_name(ifp), m_cnt,
inp->rxpoll_pavg, inp->rxpoll_pmax,
inp->rxpoll_wavg, inp->rxpoll_bavg);
}
(void) ifnet_input_common(ifp, m_head, m_tail,
&s, TRUE, TRUE);
- } else if (dlil_verbose > 1) {
- printf("%s%d: no packets, pkts avg %d max %d, "
- "wreq avg %d, bytes avg %d\n", ifp->if_name,
- ifp->if_unit, inp->rxpoll_pavg,
- inp->rxpoll_pmax, inp->rxpoll_wavg,
- inp->rxpoll_bavg);
+ } else {
+ if (dlil_verbose > 1) {
+ printf("%s: no packets, "
+ "pkts avg %d max %d, wreq avg %d, "
+ "bytes avg %d\n",
+ if_name(ifp), inp->rxpoll_pavg,
+ inp->rxpoll_pmax, inp->rxpoll_wavg,
+ inp->rxpoll_bavg);
+ }
+
+ (void) ifnet_input_common(ifp, NULL, NULL,
+ NULL, FALSE, TRUE);
}
/* Release the io ref count */
}
/* NOTREACHED */
- lck_mtx_unlock(&ifp->if_poll_lock);
- VERIFY(0); /* we should never get here */
}
void
*(&ifp->if_poll_cycle) = *ts;
if (ts != NULL && ts->tv_nsec != 0 && dlil_verbose)
- printf("%s%d: poll interval set to %lu nsec\n",
- ifp->if_name, ifp->if_unit, ts->tv_nsec);
+ printf("%s: poll interval set to %lu nsec\n",
+ if_name(ifp), ts->tv_nsec);
}
void
ifnet_update_rcv(struct ifnet *ifp, cqev_t ev)
{
switch (ev) {
- case CLASSQ_EV_LINK_SPEED:
+ case CLASSQ_EV_LINK_BANDWIDTH:
if (net_rxpoll && (ifp->if_eflags & IFEF_RXPOLL))
ifp->if_poll_update++;
break;
}
errno_t
-ifnet_get_sndq_len(struct ifnet *ifp, u_int32_t *qlen)
+ifnet_get_sndq_len(struct ifnet *ifp, u_int32_t *pkts)
{
- if (ifp == NULL || qlen == NULL)
- return (EINVAL);
+ errno_t err;
+
+ if (ifp == NULL || pkts == NULL)
+ err = EINVAL;
else if (!(ifp->if_eflags & IFEF_TXSTART))
- return (ENXIO);
+ err = ENXIO;
+ else
+ err = ifclassq_get_len(&ifp->if_snd, MBUF_SC_UNSPEC,
+ pkts, NULL);
- *qlen = ifclassq_get_len(&ifp->if_snd);
+ return (err);
+}
- return (0);
+errno_t
+ifnet_get_service_class_sndq_len(struct ifnet *ifp, mbuf_svc_class_t sc,
+ u_int32_t *pkts, u_int32_t *bytes)
+{
+ errno_t err;
+
+ if (ifp == NULL || !MBUF_VALID_SC(sc) ||
+ (pkts == NULL && bytes == NULL))
+ err = EINVAL;
+ else if (!(ifp->if_eflags & IFEF_TXSTART))
+ err = ENXIO;
+ else
+ err = ifclassq_get_len(&ifp->if_snd, sc, pkts, bytes);
+
+ return (err);
}
errno_t
ifnet_enqueue(struct ifnet *ifp, struct mbuf *m)
{
int error;
+ struct timespec now;
+ u_int64_t now_nsec;
if (ifp == NULL || m == NULL || !(m->m_flags & M_PKTHDR) ||
m->m_nextpkt != NULL) {
} else if (!(ifp->if_flags & IFF_UP)) {
m_freem(m);
return (ENETDOWN);
-
}
- /* enqueue the packet */
- error = ifclassq_enqueue(&ifp->if_snd, m);
-
- /*
- * Tell the driver to start dequeueing; do this even when the queue
- * for the packet is suspended (EQSUSPENDED), as the driver could still
- * be dequeueing from other unsuspended queues.
- */
- if (error == 0 || error == EQFULL || error == EQSUSPENDED)
- ifnet_start(ifp);
+ nanouptime(&now);
+ net_timernsec(&now, &now_nsec);
+ m->m_pkthdr.pkt_enqueue_ts = now_nsec;
+
+ if (ifp->if_eflags & IFEF_ENQUEUE_MULTI) {
+ /*
+ * If the driver chose to delay start callback for
+ * coalescing multiple packets, Then use the following
+ * heuristics to make sure that start callback will
+ * be delayed only when bulk data transfer is detected.
+ * 1. number of packets enqueued in (delay_win * 2) is
+ * greater than or equal to the delay qlen.
+ * 2. If delay_start is enabled it will stay enabled for
+ * another 10 idle windows. This is to take into account
+ * variable RTT and burst traffic.
+ * 3. If the time elapsed since last enqueue is more
+ * than 200ms we disable delaying start callback. This is
+ * is to take idle time into account.
+ */
+ u_int64_t dwin = (ifp->if_start_delay_timeout << 1);
+ if (ifp->if_start_delay_swin > 0) {
+ if ((ifp->if_start_delay_swin + dwin) > now_nsec) {
+ ifp->if_start_delay_cnt++;
+ } else if ((now_nsec - ifp->if_start_delay_swin)
+ >= (200 * 1000 * 1000)) {
+ ifp->if_start_delay_swin = now_nsec;
+ ifp->if_start_delay_cnt = 1;
+ ifp->if_start_delay_idle = 0;
+ if (ifp->if_eflags & IFEF_DELAY_START) {
+ ifp->if_eflags &=
+ ~(IFEF_DELAY_START);
+ ifnet_delay_start_disabled++;
+ }
+ } else {
+ if (ifp->if_start_delay_cnt >=
+ ifp->if_start_delay_qlen) {
+ ifp->if_eflags |= IFEF_DELAY_START;
+ ifp->if_start_delay_idle = 0;
+ } else {
+ if (ifp->if_start_delay_idle >= 10) {
+ ifp->if_eflags &= ~(IFEF_DELAY_START);
+ ifnet_delay_start_disabled++;
+ } else {
+ ifp->if_start_delay_idle++;
+ }
+ }
+ ifp->if_start_delay_swin = now_nsec;
+ ifp->if_start_delay_cnt = 1;
+ }
+ } else {
+ ifp->if_start_delay_swin = now_nsec;
+ ifp->if_start_delay_cnt = 1;
+ ifp->if_start_delay_idle = 0;
+ ifp->if_eflags &= ~(IFEF_DELAY_START);
+ }
+ } else {
+ ifp->if_eflags &= ~(IFEF_DELAY_START);
+ }
+
+ /* enqueue the packet */
+ error = ifclassq_enqueue(&ifp->if_snd, m);
+
+ /*
+ * Tell the driver to start dequeueing; do this even when the queue
+ * for the packet is suspended (EQSUSPENDED), as the driver could still
+ * be dequeueing from other unsuspended queues.
+ */
+ if (!(ifp->if_eflags & IFEF_ENQUEUE_MULTI) &&
+ (error == 0 || error == EQFULL || error == EQSUSPENDED))
+ ifnet_start(ifp);
return (error);
}
errno_t
ifnet_dequeue(struct ifnet *ifp, struct mbuf **mp)
{
+ errno_t rc;
if (ifp == NULL || mp == NULL)
return (EINVAL);
else if (!(ifp->if_eflags & IFEF_TXSTART) ||
(ifp->if_output_sched_model != IFNET_SCHED_MODEL_NORMAL))
return (ENXIO);
+ if (!ifnet_is_attached(ifp, 1))
+ return (ENXIO);
+ rc = ifclassq_dequeue(&ifp->if_snd, 1, mp, NULL, NULL, NULL);
+ ifnet_decr_iorefcnt(ifp);
- return (ifclassq_dequeue(&ifp->if_snd, 1, mp, NULL, NULL, NULL));
+ return (rc);
}
errno_t
ifnet_dequeue_service_class(struct ifnet *ifp, mbuf_svc_class_t sc,
struct mbuf **mp)
{
+ errno_t rc;
if (ifp == NULL || mp == NULL || !MBUF_VALID_SC(sc))
return (EINVAL);
else if (!(ifp->if_eflags & IFEF_TXSTART) ||
(ifp->if_output_sched_model != IFNET_SCHED_MODEL_DRIVER_MANAGED))
return (ENXIO);
-
- return (ifclassq_dequeue_sc(&ifp->if_snd, sc, 1, mp, NULL, NULL, NULL));
+ if (!ifnet_is_attached(ifp, 1))
+ return (ENXIO);
+
+ rc = ifclassq_dequeue_sc(&ifp->if_snd, sc, 1, mp, NULL, NULL, NULL);
+ ifnet_decr_iorefcnt(ifp);
+ return (rc);
}
errno_t
ifnet_dequeue_multi(struct ifnet *ifp, u_int32_t limit, struct mbuf **head,
struct mbuf **tail, u_int32_t *cnt, u_int32_t *len)
{
+ errno_t rc;
if (ifp == NULL || head == NULL || limit < 1)
return (EINVAL);
else if (!(ifp->if_eflags & IFEF_TXSTART) ||
(ifp->if_output_sched_model != IFNET_SCHED_MODEL_NORMAL))
return (ENXIO);
-
- return (ifclassq_dequeue(&ifp->if_snd, limit, head, tail, cnt, len));
+ if (!ifnet_is_attached(ifp, 1))
+ return (ENXIO);
+
+ rc = ifclassq_dequeue(&ifp->if_snd, limit, head, tail, cnt, len);
+ ifnet_decr_iorefcnt(ifp);
+ return (rc);
}
errno_t
u_int32_t limit, struct mbuf **head, struct mbuf **tail, u_int32_t *cnt,
u_int32_t *len)
{
-
+ errno_t rc;
if (ifp == NULL || head == NULL || limit < 1 || !MBUF_VALID_SC(sc))
return (EINVAL);
else if (!(ifp->if_eflags & IFEF_TXSTART) ||
(ifp->if_output_sched_model != IFNET_SCHED_MODEL_DRIVER_MANAGED))
return (ENXIO);
+ if (!ifnet_is_attached(ifp, 1))
+ return (ENXIO);
+ rc = ifclassq_dequeue_sc(&ifp->if_snd, sc, limit, head,
+ tail, cnt, len);
+ ifnet_decr_iorefcnt(ifp);
+ return (rc);
+}
- return (ifclassq_dequeue_sc(&ifp->if_snd, sc, limit, head,
- tail, cnt, len));
+errno_t
+ifnet_framer_stub(struct ifnet *ifp, struct mbuf **m,
+ const struct sockaddr *dest, const char *dest_linkaddr,
+ const char *frame_type, u_int32_t *pre, u_int32_t *post)
+{
+ if (pre != NULL)
+ *pre = 0;
+ if (post != NULL)
+ *post = 0;
+
+ return (ifp->if_framer_legacy(ifp, m, dest, dest_linkaddr, frame_type));
}
static int
next_packet = m->m_nextpkt;
m->m_nextpkt = NULL;
- frame_header = m->m_pkthdr.header;
- m->m_pkthdr.header = NULL;
+ frame_header = m->m_pkthdr.pkt_hdr;
+ m->m_pkthdr.pkt_hdr = NULL;
error = (*ifproto->kpi.v1.input)(ifproto->ifp,
ifproto->protocol_family, m, frame_header);
if (error != 0 && error != EJUSTRETURN)
atomic_add_64(&ifp->if_data.ifi_iqdrops, s->dropped);
s->dropped = 0;
}
-
+ /*
+ * If we went over the threshold, notify NetworkStatistics.
+ */
+ if (ifp->if_data_threshold &&
+ (ifp->if_ibytes + ifp->if_obytes) - ifp->if_dt_bytes >
+ ifp->if_data_threshold) {
+ ifp->if_dt_bytes = ifp->if_ibytes + ifp->if_obytes;
+ nstat_ifnet_threshold_reached(ifp->if_index);
+ }
/*
* No need for atomic operations as they are modified here
* only from within the DLIL input thread context.
while (m != NULL) {
struct if_proto *ifproto = NULL;
int iorefcnt = 0;
+ uint32_t pktf_mask; /* pkt flags to preserve */
if (ifp_param == NULL)
ifp = m->m_pkthdr.rcvif;
next_packet = m->m_nextpkt;
m->m_nextpkt = NULL;
- frame_header = m->m_pkthdr.header;
- m->m_pkthdr.header = NULL;
+ frame_header = m->m_pkthdr.pkt_hdr;
+ m->m_pkthdr.pkt_hdr = NULL;
/*
* Get an IO reference count if the interface is not
goto next;
}
iorefcnt = 1;
+ pktf_mask = 0;
+ } else {
+ /*
+ * If this arrived on lo0, preserve interface addr
+ * info to allow for connectivity between loopback
+ * and local interface addresses.
+ */
+ pktf_mask = (PKTF_LOOP|PKTF_IFAINFO);
}
+ /* make sure packet comes in clean */
+ m_classifier_init(m, pktf_mask);
+
ifp_inc_traffic_class_in(ifp, m);
/* find which protocol family this packet is for */
protocol_family = 0;
}
-#if CONFIG_EMBEDDED
- iptap_ipf_input(ifp, protocol_family, m, frame_header);
-#endif /* CONFIG_EMBEDDED */
+ if (hwcksum_dbg != 0 && !(ifp->if_flags & IFF_LOOPBACK) &&
+ !(m->m_pkthdr.pkt_flags & PKTF_LOOP))
+ dlil_input_cksum_dbg(ifp, m, frame_header,
+ protocol_family);
+
+ /*
+ * For partial checksum offload, we expect the driver to
+ * set the start offset indicating the start of the span
+ * that is covered by the hardware-computed checksum;
+ * adjust this start offset accordingly because the data
+ * pointer has been advanced beyond the link-layer header.
+ *
+ * Don't adjust if the interface is a bridge member, as
+ * the adjustment will occur from the context of the
+ * bridge interface during input.
+ */
+ if (ifp->if_bridge == NULL && (m->m_pkthdr.csum_flags &
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) ==
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) {
+ int adj;
+
+ if (frame_header == NULL ||
+ frame_header < (char *)mbuf_datastart(m) ||
+ frame_header > (char *)m->m_data ||
+ (adj = (m->m_data - frame_header)) >
+ m->m_pkthdr.csum_rx_start) {
+ m->m_pkthdr.csum_data = 0;
+ m->m_pkthdr.csum_flags &= ~CSUM_DATA_VALID;
+ hwcksum_in_invalidated++;
+ } else {
+ m->m_pkthdr.csum_rx_start -= adj;
+ }
+ }
+
+ pktap_input(ifp, protocol_family, m, frame_header);
if (m->m_flags & (M_BCAST|M_MCAST))
atomic_add_64(&ifp->if_imcasts, 1);
if_proto_ref(ifproto);
}
/* extend the list */
- m->m_pkthdr.header = frame_header;
+ m->m_pkthdr.pkt_hdr = frame_header;
if (pkt_first == NULL) {
pkt_first = m;
} else {
err = ifnet_ioctl(ifp, 0, SIOCADDMULTI, NULL);
if (err == EAFNOSUPPORT)
err = 0;
- printf("%s%d: %s %d suspended link-layer multicast membership(s) "
- "(err=%d)\n", ifp->if_name, ifp->if_unit,
+ printf("%s: %s %d suspended link-layer multicast membership(s) "
+ "(err=%d)\n", if_name(ifp),
(err == 0 ? "successfully restored" : "failed to restore"),
ifp->if_updatemcasts, err);
return (0);
}
+
+#define TMP_IF_PROTO_ARR_SIZE 10
static int
dlil_event_internal(struct ifnet *ifp, struct kev_msg *event)
{
- struct ifnet_filter *filter;
-
- /* Get an io ref count if the interface is attached */
- if (!ifnet_is_attached(ifp, 1))
- goto done;
+ struct ifnet_filter *filter = NULL;
+ struct if_proto *proto = NULL;
+ int if_proto_count = 0;
+ struct if_proto **tmp_ifproto_arr = NULL;
+ struct if_proto *tmp_ifproto_stack_arr[TMP_IF_PROTO_ARR_SIZE] = {NULL};
+ int tmp_ifproto_arr_idx = 0;
+ bool tmp_malloc = false;
/*
* Pass the event to the interface filters
if_flt_monitor_unbusy(ifp);
lck_mtx_unlock(&ifp->if_flt_lock);
+ /* Get an io ref count if the interface is attached */
+ if (!ifnet_is_attached(ifp, 1))
+ goto done;
+
+ /*
+ * An embedded tmp_list_entry in if_proto may still get
+ * over-written by another thread after giving up ifnet lock,
+ * therefore we are avoiding embedded pointers here.
+ */
ifnet_lock_shared(ifp);
- if (ifp->if_proto_hash != NULL) {
+ if_proto_count = dlil_ifp_proto_count(ifp);
+ if (if_proto_count) {
int i;
+ VERIFY(ifp->if_proto_hash != NULL);
+ if (if_proto_count <= TMP_IF_PROTO_ARR_SIZE) {
+ tmp_ifproto_arr = tmp_ifproto_stack_arr;
+ } else {
+ MALLOC(tmp_ifproto_arr, struct if_proto **,
+ sizeof (*tmp_ifproto_arr) * if_proto_count,
+ M_TEMP, M_ZERO);
+ if (tmp_ifproto_arr == NULL) {
+ ifnet_lock_done(ifp);
+ goto cleanup;
+ }
+ tmp_malloc = true;
+ }
for (i = 0; i < PROTO_HASH_SLOTS; i++) {
- struct if_proto *proto;
-
SLIST_FOREACH(proto, &ifp->if_proto_hash[i],
next_hash) {
- proto_media_event eventp =
- (proto->proto_kpi == kProtoKPI_v1 ?
- proto->kpi.v1.event :
- proto->kpi.v2.event);
-
- if (eventp != NULL) {
- if_proto_ref(proto);
- ifnet_lock_done(ifp);
-
- eventp(ifp, proto->protocol_family,
- event);
-
- ifnet_lock_shared(ifp);
- if_proto_free(proto);
- }
+ if_proto_ref(proto);
+ tmp_ifproto_arr[tmp_ifproto_arr_idx] = proto;
+ tmp_ifproto_arr_idx++;
}
}
+ VERIFY(if_proto_count == tmp_ifproto_arr_idx);
}
ifnet_lock_done(ifp);
+ for (tmp_ifproto_arr_idx = 0; tmp_ifproto_arr_idx < if_proto_count;
+ tmp_ifproto_arr_idx++) {
+ proto = tmp_ifproto_arr[tmp_ifproto_arr_idx];
+ VERIFY(proto != NULL);
+ proto_media_event eventp =
+ (proto->proto_kpi == kProtoKPI_v1 ?
+ proto->kpi.v1.event :
+ proto->kpi.v2.event);
+
+ if (eventp != NULL) {
+ eventp(ifp, proto->protocol_family,
+ event);
+ }
+ if_proto_free(proto);
+ }
+
+cleanup:
+ if (tmp_malloc) {
+ FREE(tmp_ifproto_arr, M_TEMP);
+ }
+
/* Pass the event to the interface */
if (ifp->if_event != NULL)
ifp->if_event(ifp, event);
/* Release the io ref count */
ifnet_decr_iorefcnt(ifp);
-
done:
return (kev_post_msg(event));
}
}
}
+static void
+dlil_count_chain_len(mbuf_t m, struct chain_len_stats *cls)
+{
+ mbuf_t n = m;
+ int chainlen = 0;
+
+ while (n != NULL) {
+ chainlen++;
+ n = n->m_next;
+ }
+ switch (chainlen) {
+ case 0:
+ break;
+ case 1:
+ atomic_add_64(&cls->cls_one, 1);
+ break;
+ case 2:
+ atomic_add_64(&cls->cls_two, 1);
+ break;
+ case 3:
+ atomic_add_64(&cls->cls_three, 1);
+ break;
+ case 4:
+ atomic_add_64(&cls->cls_four, 1);
+ break;
+ case 5:
+ default:
+ atomic_add_64(&cls->cls_five_or_more, 1);
+ break;
+ }
+}
+
/*
* dlil_output
*
* is under the protocol lock.
*
* An advisory code will be returned if adv is not null. This
- * can be used to provide feedback about interface queues to the
+ * can be used to provide feedback about interface queues to the
* application.
*/
errno_t
mbuf_t send_head = NULL;
mbuf_t *send_tail = &send_head;
int iorefcnt = 0;
-#if CONFIG_EMBEDDED
u_int32_t pre = 0, post = 0;
-#endif /* CONFIG_EMBEDDED */
+ u_int32_t fpkts = 0, fbytes = 0;
+ int32_t flen = 0;
- KERNEL_DEBUG(DBG_FNC_DLIL_OUTPUT | DBG_FUNC_START,0,0,0,0,0);
+ KERNEL_DEBUG(DBG_FNC_DLIL_OUTPUT | DBG_FUNC_START, 0, 0, 0, 0, 0);
/* Get an io refcnt if the interface is attached to prevent ifnet_detach
* from happening while this operation is in progress */
#if CONFIG_MACF_NET
retval = mac_ifnet_check_transmit(ifp, m, proto_family,
dlil_get_socket_type(&m, proto_family, raw));
- if (retval) {
+ if (retval != 0) {
m_freem(m);
goto cleanup;
}
}
#endif /* CONFIG_DTRACE */
- if (raw == 0 && ifp->if_framer) {
+ if (raw == 0 && ifp->if_framer != NULL) {
int rcvif_set = 0;
/*
}
retval = ifp->if_framer(ifp, &m, dest, dst_linkaddr,
- frame_type
-#if CONFIG_EMBEDDED
- ,
- &pre, &post
-#endif /* CONFIG_EMBEDDED */
- );
- if (retval) {
+ frame_type, &pre, &post);
+ if (retval != 0) {
if (retval != EJUSTRETURN)
m_freem(m);
goto next;
}
+ /*
+ * For partial checksum offload, adjust the start
+ * and stuff offsets based on the prepended header.
+ */
+ if ((m->m_pkthdr.csum_flags &
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) ==
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) {
+ m->m_pkthdr.csum_tx_stuff += pre;
+ m->m_pkthdr.csum_tx_start += pre;
+ }
+
+ if (hwcksum_dbg != 0 && !(ifp->if_flags & IFF_LOOPBACK))
+ dlil_output_cksum_dbg(ifp, m, pre,
+ proto_family);
+
/*
* Clear the ifp if it was set above, and to be
* safe, only if it is still the same as the
}
}
/*
- * Strip away M_PROTO1 bit prior to sending packet to the driver
- * as this field may be used by the driver
+ * Strip away M_PROTO1 bit prior to sending packet
+ * to the driver as this field may be used by the driver
*/
m->m_flags &= ~M_PROTO1;
* If this is a TSO packet, make sure the interface still
* advertise TSO capability.
*/
-
- if ((m->m_pkthdr.csum_flags & CSUM_TSO_IPV4) &&
- !(ifp->if_hwassist & IFNET_TSO_IPV4)) {
+ if (TSO_IPV4_NOTOK(ifp, m) || TSO_IPV6_NOTOK(ifp, m)) {
retval = EMSGSIZE;
m_freem(m);
goto cleanup;
}
- if ((m->m_pkthdr.csum_flags & CSUM_TSO_IPV6) &&
- !(ifp->if_hwassist & IFNET_TSO_IPV6)) {
- retval = EMSGSIZE;
- m_freem(m);
- goto cleanup;
+ /*
+ * If the packet service class is not background,
+ * update the timestamp to indicate recent activity
+ * on a foreground socket.
+ */
+ if ((m->m_pkthdr.pkt_flags & PKTF_FLOW_ID) &&
+ m->m_pkthdr.pkt_flowsrc == FLOWSRC_INPCB) {
+ if (!(m->m_pkthdr.pkt_flags & PKTF_SO_BACKGROUND))
+ ifp->if_fg_sendts = net_uptime();
+
+ if (m->m_pkthdr.pkt_flags & PKTF_SO_REALTIME)
+ ifp->if_rt_sendts = net_uptime();
+ }
+
+ ifp_inc_traffic_class_out(ifp, m);
+ pktap_output(ifp, proto_family, m, pre, post);
+
+ /*
+ * Count the number of elements in the mbuf chain
+ */
+ if (tx_chain_len_count) {
+ dlil_count_chain_len(m, &tx_chain_len_stats);
}
/*
* Finally, call the driver.
*/
- if ((ifp->if_eflags & IFEF_SENDLIST) != 0) {
+ if (ifp->if_eflags & (IFEF_SENDLIST | IFEF_ENQUEUE_MULTI)) {
+ if (m->m_pkthdr.pkt_flags & PKTF_FORWARDED) {
+ flen += (m_pktlen(m) - (pre + post));
+ m->m_pkthdr.pkt_flags &= ~PKTF_FORWARDED;
+ }
*send_tail = m;
send_tail = &m->m_nextpkt;
} else {
-#if CONFIG_EMBEDDED
- iptap_ipf_output(ifp, proto_family, (struct mbuf *)m,
- pre, post);
-#endif /* CONFIG_EMBEDDED */
- ifp_inc_traffic_class_out(ifp, m);
+ if (m->m_pkthdr.pkt_flags & PKTF_FORWARDED) {
+ flen = (m_pktlen(m) - (pre + post));
+ m->m_pkthdr.pkt_flags &= ~PKTF_FORWARDED;
+ } else {
+ flen = 0;
+ }
KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_START,
- 0,0,0,0,0);
+ 0, 0, 0, 0, 0);
retval = (*ifp->if_output)(ifp, m);
if (retval == EQFULL || retval == EQSUSPENDED) {
if (adv != NULL && adv->code == FADV_SUCCESS) {
}
retval = 0;
}
- if (retval && dlil_verbose) {
- printf("%s: output error on %s%d retval = %d\n",
- __func__, ifp->if_name, ifp->if_unit,
+ if (retval == 0 && flen > 0) {
+ fbytes += flen;
+ fpkts++;
+ }
+ if (retval != 0 && dlil_verbose) {
+ printf("%s: output error on %s retval = %d\n",
+ __func__, if_name(ifp),
retval);
}
KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_END,
- 0,0,0,0,0);
+ 0, 0, 0, 0, 0);
}
- KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_END, 0,0,0,0,0);
+ KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_END, 0, 0, 0, 0, 0);
next:
m = packetlist;
- if (m) {
+ if (m != NULL) {
packetlist = packetlist->m_nextpkt;
m->m_nextpkt = NULL;
}
- } while (m);
-
- if (send_head) {
-#if CONFIG_EMBEDDED
- iptap_ipf_output(ifp, proto_family, (struct mbuf *)send_head,
- pre, post);
-#endif /* CONFIG_EMBEDDED */
- ifp_inc_traffic_class_out(ifp, send_head);
-
- KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_START, 0,0,0,0,0);
- retval = (*ifp->if_output)(ifp, send_head);
- if (retval == EQFULL || retval == EQSUSPENDED) {
- if (adv != NULL) {
- adv->code = (retval == EQFULL ?
- FADV_FLOW_CONTROLLED : FADV_SUSPENDED);
+ } while (m != NULL);
+
+ if (send_head != NULL) {
+ KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_START,
+ 0, 0, 0, 0, 0);
+ if (ifp->if_eflags & IFEF_SENDLIST) {
+ retval = (*ifp->if_output)(ifp, send_head);
+ if (retval == EQFULL || retval == EQSUSPENDED) {
+ if (adv != NULL) {
+ adv->code = (retval == EQFULL ?
+ FADV_FLOW_CONTROLLED :
+ FADV_SUSPENDED);
+ }
+ retval = 0;
+ }
+ if (retval == 0 && flen > 0) {
+ fbytes += flen;
+ fpkts++;
+ }
+ if (retval != 0 && dlil_verbose) {
+ printf("%s: output error on %s retval = %d\n",
+ __func__, if_name(ifp), retval);
+ }
+ } else {
+ struct mbuf *send_m;
+ int enq_cnt = 0;
+ VERIFY(ifp->if_eflags & IFEF_ENQUEUE_MULTI);
+ while (send_head != NULL) {
+ send_m = send_head;
+ send_head = send_m->m_nextpkt;
+ send_m->m_nextpkt = NULL;
+ retval = (*ifp->if_output)(ifp, send_m);
+ if (retval == EQFULL || retval == EQSUSPENDED) {
+ if (adv != NULL) {
+ adv->code = (retval == EQFULL ?
+ FADV_FLOW_CONTROLLED :
+ FADV_SUSPENDED);
+ }
+ retval = 0;
+ }
+ if (retval == 0) {
+ enq_cnt++;
+ if (flen > 0)
+ fpkts++;
+ }
+ if (retval != 0 && dlil_verbose) {
+ printf("%s: output error on %s retval = %d\n",
+ __func__, if_name(ifp), retval);
+ }
+ }
+ if (enq_cnt > 0) {
+ fbytes += flen;
+ ifnet_start(ifp);
}
- retval = 0;
- }
- if (retval && dlil_verbose) {
- printf("%s: output error on %s%d retval = %d\n",
- __func__, ifp->if_name, ifp->if_unit, retval);
}
- KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_END, 0,0,0,0,0);
+ KERNEL_DEBUG(DBG_FNC_DLIL_IFOUT | DBG_FUNC_END, 0, 0, 0, 0, 0);
}
- KERNEL_DEBUG(DBG_FNC_DLIL_OUTPUT | DBG_FUNC_END,0,0,0,0,0);
+ KERNEL_DEBUG(DBG_FNC_DLIL_OUTPUT | DBG_FUNC_END, 0, 0, 0, 0, 0);
cleanup:
+ if (fbytes > 0)
+ ifp->if_fbytes += fbytes;
+ if (fpkts > 0)
+ ifp->if_fpackets += fpkts;
if (proto != NULL)
if_proto_free(proto);
if (packetlist) /* if any packets are left, clean up */
proto_media_send_arp arpp;
arpp = (proto->proto_kpi == kProtoKPI_v1 ?
proto->kpi.v1.send_arp : proto->kpi.v2.send_arp);
- if (arpp == NULL)
+ if (arpp == NULL) {
result = ENOTSUP;
- else
+ } else {
+ switch (arpop) {
+ case ARPOP_REQUEST:
+ arpstat.txrequests++;
+ if (target_hw != NULL)
+ arpstat.txurequests++;
+ break;
+ case ARPOP_REPLY:
+ arpstat.txreplies++;
+ break;
+ }
result = arpp(ifp, arpop, sender_hw, sender_proto,
target_hw, target_proto);
+ }
if_proto_free(proto);
}
return (result);
}
-__private_extern__ errno_t
-net_thread_check_lock(u_int32_t flag)
+struct net_thread_marks { };
+static const struct net_thread_marks net_thread_marks_base = { };
+
+__private_extern__ const net_thread_marks_t net_thread_marks_none =
+ &net_thread_marks_base;
+
+__private_extern__ net_thread_marks_t
+net_thread_marks_push(u_int32_t push)
+{
+ static const char *const base = (const void*)&net_thread_marks_base;
+ u_int32_t pop = 0;
+
+ if (push != 0) {
+ struct uthread *uth = get_bsdthread_info(current_thread());
+
+ pop = push & ~uth->uu_network_marks;
+ if (pop != 0)
+ uth->uu_network_marks |= pop;
+ }
+
+ return ((net_thread_marks_t)&base[pop]);
+}
+
+__private_extern__ net_thread_marks_t
+net_thread_unmarks_push(u_int32_t unpush)
{
- struct uthread *uth = get_bsdthread_info(current_thread());
- return ((uth->uu_network_lock_held & flag) == flag);
+ static const char *const base = (const void*)&net_thread_marks_base;
+ u_int32_t unpop = 0;
+
+ if (unpush != 0) {
+ struct uthread *uth = get_bsdthread_info(current_thread());
+
+ unpop = unpush & uth->uu_network_marks;
+ if (unpop != 0)
+ uth->uu_network_marks &= ~unpop;
+ }
+
+ return ((net_thread_marks_t)&base[unpop]);
}
__private_extern__ void
-net_thread_set_lock(u_int32_t flag)
+net_thread_marks_pop(net_thread_marks_t popx)
{
- struct uthread *uth = get_bsdthread_info(current_thread());
+ static const char *const base = (const void*)&net_thread_marks_base;
+ const ptrdiff_t pop = (const char *)popx - (const char *)base;
- VERIFY((uth->uu_network_lock_held & flag) != flag);
- uth->uu_network_lock_held |= flag;
+ if (pop != 0) {
+ static const ptrdiff_t ones = (ptrdiff_t)(u_int32_t)~0U;
+ struct uthread *uth = get_bsdthread_info(current_thread());
+
+ VERIFY((pop & ones) == pop);
+ VERIFY((ptrdiff_t)(uth->uu_network_marks & pop) == pop);
+ uth->uu_network_marks &= ~pop;
+ }
}
__private_extern__ void
-net_thread_unset_lock(u_int32_t flag)
+net_thread_unmarks_pop(net_thread_marks_t unpopx)
{
- struct uthread *uth = get_bsdthread_info(current_thread());
+ static const char *const base = (const void*)&net_thread_marks_base;
+ ptrdiff_t unpop = (const char *)unpopx - (const char *)base;
- VERIFY((uth->uu_network_lock_held & flag) == flag);
- uth->uu_network_lock_held &= (~flag);
+ if (unpop != 0) {
+ static const ptrdiff_t ones = (ptrdiff_t)(u_int32_t)~0U;
+ struct uthread *uth = get_bsdthread_info(current_thread());
+
+ VERIFY((unpop & ones) == unpop);
+ VERIFY((ptrdiff_t)(uth->uu_network_marks & unpop) == 0);
+ uth->uu_network_marks |= unpop;
+ }
+}
+
+__private_extern__ u_int32_t
+net_thread_is_marked(u_int32_t check)
+{
+ if (check != 0) {
+ struct uthread *uth = get_bsdthread_info(current_thread());
+ return (uth->uu_network_marks & check);
+ }
+ else
+ return (0);
+}
+
+__private_extern__ u_int32_t
+net_thread_is_unmarked(u_int32_t check)
+{
+ if (check != 0) {
+ struct uthread *uth = get_bsdthread_info(current_thread());
+ return (~uth->uu_network_marks & check);
+ }
+ else
+ return (0);
}
static __inline__ int
proto_details->demux_list, proto_details->demux_count);
if (dlil_verbose) {
- printf("%s%d: attached v1 protocol %d\n", ifp->if_name,
- ifp->if_unit, protocol);
+ printf("%s: attached v1 protocol %d\n", if_name(ifp),
+ protocol);
}
end:
if (retval != 0 && retval != EEXIST && ifp != NULL) {
- DLIL_PRINTF("%s%d: failed to attach v1 protocol %d (err=%d)\n",
- ifp->if_name, ifp->if_unit, protocol, retval);
+ DLIL_PRINTF("%s: failed to attach v1 protocol %d (err=%d)\n",
+ if_name(ifp), protocol, retval);
}
ifnet_head_done();
if (retval != 0 && ifproto != NULL)
proto_details->demux_list, proto_details->demux_count);
if (dlil_verbose) {
- printf("%s%d: attached v2 protocol %d\n", ifp->if_name,
- ifp->if_unit, protocol);
+ printf("%s: attached v2 protocol %d\n", if_name(ifp),
+ protocol);
}
end:
if (retval != 0 && retval != EEXIST && ifp != NULL) {
- DLIL_PRINTF("%s%d: failed to attach v2 protocol %d (err=%d)\n",
- ifp->if_name, ifp->if_unit, protocol, retval);
+ DLIL_PRINTF("%s: failed to attach v2 protocol %d (err=%d)\n",
+ if_name(ifp), protocol, retval);
}
ifnet_head_done();
if (retval != 0 && ifproto != NULL)
ifnet_lock_done(ifp);
if (dlil_verbose) {
- printf("%s%d: detached %s protocol %d\n", ifp->if_name,
- ifp->if_unit, (proto->proto_kpi == kProtoKPI_v1) ?
+ printf("%s: detached %s protocol %d\n", if_name(ifp),
+ (proto->proto_kpi == kProtoKPI_v1) ?
"v1" : "v2", proto_family);
}
}
extern int if_next_index(void);
+extern int tcp_ecn_outbound;
errno_t
ifnet_attach(ifnet_t ifp, const struct sockaddr_dl *ll_addr)
if (if_flowadv)
sflags |= PKTSCHEDF_QALG_FLOWCTL;
+ if (if_delaybased_queue)
+ sflags |= PKTSCHEDF_QALG_DELAYBASED;
+
/* Initialize transmit queue(s) */
err = ifclassq_setup(ifp, sflags, (dl_if->dl_if_flags & DLIF_REUSE));
if (err != 0) {
}
/*
- * If the driver supports the new transmit model, create a workloop
- * starter thread to invoke the if_start callback where the packets
- * may be dequeued and transmitted.
+ * If the driver supports the new transmit model, calculate flow hash
+ * and create a workloop starter thread to invoke the if_start callback
+ * where the packets may be dequeued and transmitted.
*/
if (ifp->if_eflags & IFEF_TXSTART) {
+ ifp->if_flowhash = ifnet_calc_flowhash(ifp);
+ VERIFY(ifp->if_flowhash != 0);
+
VERIFY(ifp->if_start != NULL);
VERIFY(ifp->if_start_thread == THREAD_NULL);
ifnet_set_start_cycle(ifp, NULL);
ifp->if_start_active = 0;
ifp->if_start_req = 0;
+ ifp->if_start_flags = 0;
if ((err = kernel_thread_start(ifnet_start_thread_fn, ifp,
&ifp->if_start_thread)) != KERN_SUCCESS) {
panic_plain("%s: ifp=%p couldn't get a start thread; "
}
ml_thread_policy(ifp->if_start_thread, MACHINE_GROUP,
(MACHINE_NETWORK_GROUP|MACHINE_NETWORK_WORKLOOP));
+ } else {
+ ifp->if_flowhash = 0;
}
/*
IFMA_UNLOCK(ifma);
}
- printf("%s%d: attached with %d suspended link-layer multicast "
- "membership(s)\n", ifp->if_name, ifp->if_unit,
+ printf("%s: attached with %d suspended link-layer multicast "
+ "membership(s)\n", if_name(ifp),
ifp->if_updatemcasts);
}
+ /* Clear logging parameters */
+ bzero(&ifp->if_log, sizeof (ifp->if_log));
+ ifp->if_fg_sendts = 0;
+
+ VERIFY(ifp->if_delegated.ifp == NULL);
+ VERIFY(ifp->if_delegated.type == 0);
+ VERIFY(ifp->if_delegated.family == 0);
+ VERIFY(ifp->if_delegated.subfamily == 0);
+ VERIFY(ifp->if_delegated.expensive == 0);
+
+ bzero(&ifp->if_agentids, sizeof(ifp->if_agentids));
+
+ /* Reset interface state */
+ bzero(&ifp->if_interface_state, sizeof(ifp->if_interface_state));
+ ifp->if_interface_state.valid_bitmask |=
+ IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID;
+ ifp->if_interface_state.interface_availability =
+ IF_INTERFACE_STATE_INTERFACE_AVAILABLE;
+
+ /* Initialize Link Quality Metric (loopback [lo0] is always good) */
+ if (ifp == lo_ifp) {
+ ifp->if_interface_state.lqm_state = IFNET_LQM_THRESH_GOOD;
+ ifp->if_interface_state.valid_bitmask |=
+ IF_INTERFACE_STATE_LQM_STATE_VALID;
+ } else {
+ ifp->if_interface_state.lqm_state = IFNET_LQM_THRESH_UNKNOWN;
+ }
+
+ /*
+ * Enable ECN capability on this interface depending on the
+ * value of ECN global setting
+ */
+ if (tcp_ecn_outbound == 2 && !IFNET_IS_CELLULAR(ifp)) {
+ ifp->if_eflags |= IFEF_ECN_ENABLE;
+ ifp->if_eflags &= ~IFEF_ECN_DISABLE;
+ }
+
ifnet_lock_done(ifp);
ifnet_head_done();
/* Enable forwarding cached route */
ifp->if_fwd_cacheok = 1;
/* Clean up any existing cached routes */
- if (ifp->if_fwd_route.ro_rt != NULL)
- rtfree(ifp->if_fwd_route.ro_rt);
+ ROUTE_RELEASE(&ifp->if_fwd_route);
bzero(&ifp->if_fwd_route, sizeof (ifp->if_fwd_route));
- if (ifp->if_src_route.ro_rt != NULL)
- rtfree(ifp->if_src_route.ro_rt);
+ ROUTE_RELEASE(&ifp->if_src_route);
bzero(&ifp->if_src_route, sizeof (ifp->if_src_route));
- if (ifp->if_src_route6.ro_rt != NULL)
- rtfree(ifp->if_src_route6.ro_rt);
+ ROUTE_RELEASE(&ifp->if_src_route6);
bzero(&ifp->if_src_route6, sizeof (ifp->if_src_route6));
lck_mtx_unlock(&ifp->if_cached_route_lock);
}
#endif /* INET6 */
+ VERIFY(ifp->if_data_threshold == 0);
+
/*
* Finally, mark this ifnet as attached.
*/
lck_mtx_lock(rnh_lock);
ifnet_lock_exclusive(ifp);
- /* Initialize Link Quality Metric (loopback [lo0] is always good) */
- ifp->if_lqm = (ifp == lo_ifp) ? IFNET_LQM_THRESH_GOOD :
- IFNET_LQM_THRESH_UNKNOWN;
lck_mtx_lock_spin(&ifp->if_ref_lock);
ifp->if_refflags = IFRF_ATTACHED;
lck_mtx_unlock(&ifp->if_ref_lock);
dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_IF_ATTACHED, NULL, 0);
if (dlil_verbose) {
- printf("%s%d: attached%s\n", ifp->if_name, ifp->if_unit,
+ printf("%s: attached%s\n", if_name(ifp),
(dl_if->dl_if_flags & DLIF_REUSE) ? " (recycled)" : "");
}
ifnet_lock_assert(ifp, IFNET_LCK_ASSERT_EXCLUSIVE);
VERIFY(ll_addr == NULL || ll_addr->sdl_alen == ifp->if_addrlen);
- namelen = snprintf(workbuf, sizeof (workbuf), "%s%d",
- ifp->if_name, ifp->if_unit);
+ namelen = snprintf(workbuf, sizeof (workbuf), "%s",
+ if_name(ifp));
masklen = offsetof(struct sockaddr_dl, sdl_data[0]) + namelen;
socksize = masklen + ifp->if_addrlen;
#define ROUNDUP(a) (1 + (((a) - 1) | (sizeof (u_int32_t) - 1)))
#if INET6
in6_purgeaddrs(ifp);
#endif /* INET6 */
-#if NETAT
- at_purgeaddrs(ifp);
-#endif
}
errno_t
ifnet_detach(ifnet_t ifp)
{
+ struct ifnet *delegated_ifp;
+
if (ifp == NULL)
return (EINVAL);
lck_mtx_unlock(&ifp->if_ref_lock);
if (dlil_verbose)
- printf("%s%d: detaching\n", ifp->if_name, ifp->if_unit);
+ printf("%s: detaching\n", if_name(ifp));
+
+ /* Reset ECN enable/disable flags */
+ ifp->if_eflags &= ~IFEF_ECN_DISABLE;
+ ifp->if_eflags &= ~IFEF_ECN_ENABLE;
/*
* Remove ifnet from the ifnet_head, ifindex2ifnet[]; it will
ifp->if_link.tqe_prev = NULL;
ifindex2ifnet[ifp->if_index] = NULL;
+ /* 18717626 - reset IFEF_IPV4_ROUTER and IFEF_IPV6_ROUTER */
+ ifp->if_eflags &= ~(IFEF_IPV4_ROUTER | IFEF_IPV6_ROUTER);
+
/* Record detach PC stacktrace */
ctrace_record(&((struct dlil_ifnet *)ifp)->dl_if_detach);
+ /* Clear logging parameters */
+ bzero(&ifp->if_log, sizeof (ifp->if_log));
+
+ /* Clear delegated interface info (reference released below) */
+ delegated_ifp = ifp->if_delegated.ifp;
+ bzero(&ifp->if_delegated, sizeof (ifp->if_delegated));
+
+ /* Reset interface state */
+ bzero(&ifp->if_interface_state, sizeof(ifp->if_interface_state));
+
ifnet_lock_done(ifp);
ifnet_head_done();
lck_mtx_unlock(rnh_lock);
+ /* Release reference held on the delegated interface */
+ if (delegated_ifp != NULL)
+ ifnet_release(delegated_ifp);
+
/* Reset Link Quality Metric (unless loopback [lo0]) */
if (ifp != lo_ifp)
- if_lqm_update(ifp, IFNET_LQM_THRESH_OFF);
+ if_lqm_update(ifp, IFNET_LQM_THRESH_OFF, 0);
/* Reset TCP local statistics */
if (ifp->if_tcp_stat != NULL)
if (ifp->if_udp_stat != NULL)
bzero(ifp->if_udp_stat, sizeof(*ifp->if_udp_stat));
+ /* Reset ifnet IPv4 stats */
+ if (ifp->if_ipv4_stat != NULL)
+ bzero(ifp->if_ipv4_stat, sizeof(*ifp->if_ipv4_stat));
+
+ /* Reset ifnet IPv6 stats */
+ if (ifp->if_ipv6_stat != NULL)
+ bzero(ifp->if_ipv6_stat, sizeof(*ifp->if_ipv6_stat));
+
+ /* Release memory held for interface link status report */
+ if (ifp->if_link_status != NULL) {
+ FREE(ifp->if_link_status, M_TEMP);
+ ifp->if_link_status = NULL;
+ }
+
/* Let BPF know we're detaching */
bpfdetach(ifp);
/* Mark the interface as DOWN */
if_down(ifp);
- /* Drain send queue */
- ifclassq_teardown(ifp);
-
/* Disable forwarding cached route */
lck_mtx_lock(&ifp->if_cached_route_lock);
ifp->if_fwd_cacheok = 0;
lck_mtx_unlock(&ifp->if_cached_route_lock);
+ ifp->if_data_threshold = 0;
/*
* Drain any deferred IGMPv3/MLDv2 query responses, but keep the
* references to the info structures and leave them attached to
* common case, so block without using a continuation.
*/
while (ifp->if_refio > 0) {
- printf("%s: Waiting for IO references on %s%d interface "
- "to be released\n", __func__, ifp->if_name, ifp->if_unit);
+ printf("%s: Waiting for IO references on %s interface "
+ "to be released\n", __func__, if_name(ifp));
(void) msleep(&(ifp->if_refio), &ifp->if_ref_lock,
(PZERO - 1), "ifnet_ioref_wait", NULL);
}
lck_mtx_unlock(&ifp->if_ref_lock);
+ /* Drain and destroy send queue */
+ ifclassq_teardown(ifp);
+
/* Detach interface filters */
lck_mtx_lock(&ifp->if_flt_lock);
if_flt_monitor_enter(ifp);
*/
if (ifp->if_start_thread != THREAD_NULL) {
lck_mtx_lock_spin(&ifp->if_start_lock);
+ ifp->if_start_flags = 0;
ifp->if_start_thread = THREAD_NULL;
wakeup_one((caddr_t)&ifp->if_start_thread);
lck_mtx_unlock(&ifp->if_start_lock);
ifp->if_free = ifp_if_free;
ifp->if_demux = ifp_if_demux;
ifp->if_event = ifp_if_event;
- ifp->if_framer = ifp_if_framer;
+ ifp->if_framer_legacy = ifp_if_framer;
+ ifp->if_framer = ifp_if_framer_extended;
ifp->if_add_proto = ifp_if_add_proto;
ifp->if_del_proto = ifp_if_del_proto;
ifp->if_check_multi = ifp_if_check_multi;
VERIFY(ifp->if_desc.ifd_desc != NULL);
bzero(ifp->if_desc.ifd_desc, IF_DESCSIZE);
+ /* there shouldn't be any delegation by now */
+ VERIFY(ifp->if_delegated.ifp == NULL);
+ VERIFY(ifp->if_delegated.type == 0);
+ VERIFY(ifp->if_delegated.family == 0);
+ VERIFY(ifp->if_delegated.subfamily == 0);
+ VERIFY(ifp->if_delegated.expensive == 0);
+
ifnet_lock_done(ifp);
#if PF
/* Last chance to cleanup any cached route */
lck_mtx_lock(&ifp->if_cached_route_lock);
VERIFY(!ifp->if_fwd_cacheok);
- if (ifp->if_fwd_route.ro_rt != NULL)
- rtfree(ifp->if_fwd_route.ro_rt);
+ ROUTE_RELEASE(&ifp->if_fwd_route);
bzero(&ifp->if_fwd_route, sizeof (ifp->if_fwd_route));
- if (ifp->if_src_route.ro_rt != NULL)
- rtfree(ifp->if_src_route.ro_rt);
+ ROUTE_RELEASE(&ifp->if_src_route);
bzero(&ifp->if_src_route, sizeof (ifp->if_src_route));
- if (ifp->if_src_route6.ro_rt != NULL)
- rtfree(ifp->if_src_route6.ro_rt);
+ ROUTE_RELEASE(&ifp->if_src_route6);
bzero(&ifp->if_src_route6, sizeof (ifp->if_src_route6));
lck_mtx_unlock(&ifp->if_cached_route_lock);
+ VERIFY(ifp->if_data_threshold == 0);
+
ifnet_llreach_ifdetach(ifp);
dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_IF_DETACHED, NULL, 0);
lck_mtx_unlock(&ifp->if_ref_lock);
if (dlil_verbose)
- printf("%s%d: detached\n", ifp->if_name, ifp->if_unit);
+ printf("%s: detached\n", if_name(ifp));
/* Release reference held during ifnet attach */
ifnet_release(ifp);
return (EOPNOTSUPP);
}
-static errno_t ifp_if_framer(struct ifnet *ifp, struct mbuf **m,
-const struct sockaddr *sa, const char *ll, const char *t
-#if CONFIG_EMBEDDED
- ,
- u_int32_t *pre, u_int32_t *post
-#endif /* CONFIG_EMBEDDED */
- )
+static errno_t
+ifp_if_framer(struct ifnet *ifp, struct mbuf **m,
+ const struct sockaddr *sa, const char *ll, const char *t)
{
#pragma unused(ifp, m, sa, ll, t)
+ return (ifp_if_framer_extended(ifp, m, sa, ll, t, NULL, NULL));
+}
+
+static errno_t
+ifp_if_framer_extended(struct ifnet *ifp, struct mbuf **m,
+ const struct sockaddr *sa, const char *ll, const char *t,
+ u_int32_t *pre, u_int32_t *post)
+{
+#pragma unused(ifp, sa, ll, t)
m_freem(*m);
*m = NULL;
-#if CONFIG_EMBEDDED
- *pre = 0;
- *post = 0;
-#endif /* CONFIG_EMBEDDED */
+
+ if (pre != NULL)
+ *pre = 0;
+ if (post != NULL)
+ *post = 0;
+
return (EJUSTRETURN);
}
dlifp1->dl_if_trace = dlil_if_trace;
}
ifp1->if_name = dlifp1->dl_if_namestorage;
+ ifp1->if_xname = dlifp1->dl_if_xnamestorage;
/* initialize interface description */
ifp1->if_desc.ifd_maxlen = IF_DESCSIZE;
lck_mtx_init(&ifp1->if_addrconfig_lock, ifnet_lock_group,
ifnet_lock_attr);
lck_rw_init(&ifp1->if_llreach_lock, ifnet_lock_group, ifnet_lock_attr);
+#if INET
+ lck_rw_init(&ifp1->if_inetdata_lock, ifnet_lock_group,
+ ifnet_lock_attr);
+ ifp1->if_inetdata = NULL;
+#endif
+#if INET6
+ lck_rw_init(&ifp1->if_inet6data_lock, ifnet_lock_group,
+ ifnet_lock_attr);
+ ifp1->if_inet6data = NULL;
+#endif
+ lck_rw_init(&ifp1->if_link_status_lock, ifnet_lock_group,
+ ifnet_lock_attr);
+ ifp1->if_link_status = NULL;
/* for send data paths */
lck_mtx_init(&ifp1->if_start_lock, ifnet_snd_lock_group,
ifnet_lock_exclusive(ifp);
lck_mtx_lock(&dlifp->dl_if_lock);
dlifp->dl_if_flags &= ~DLIF_INUSE;
- strncpy(dlifp->dl_if_namestorage, ifp->if_name, IFNAMSIZ);
+ strlcpy(dlifp->dl_if_namestorage, ifp->if_name, IFNAMSIZ);
ifp->if_name = dlifp->dl_if_namestorage;
+ /* Reset external name (name + unit) */
+ ifp->if_xname = dlifp->dl_if_xnamestorage;
+ snprintf(__DECONST(char *, ifp->if_xname), IFXNAMSIZ,
+ "%s?", ifp->if_name);
lck_mtx_unlock(&dlifp->dl_if_lock);
#if CONFIG_MACF_NET
/*
dlil_proto_unplumb_all(struct ifnet *ifp)
{
/*
- * if_proto_hash[0-3] are for PF_INET, PF_INET6, PF_APPLETALK
- * and PF_VLAN, where each bucket contains exactly one entry;
- * PF_VLAN does not need an explicit unplumb.
+ * if_proto_hash[0-2] are for PF_INET, PF_INET6 and PF_VLAN, where
+ * each bucket contains exactly one entry; PF_VLAN does not need an
+ * explicit unplumb.
*
- * if_proto_hash[4] is for other protocols; we expect anything
+ * if_proto_hash[3] is for other protocols; we expect anything
* in this bucket to respond to the DETACHING event (which would
* have happened by now) and do the unplumb then.
*/
#if INET6
(void) proto_unplumb(PF_INET6, ifp);
#endif /* INET6 */
-#if NETAT
- (void) proto_unplumb(PF_APPLETALK, ifp);
-#endif /* NETAT */
}
static void
if (ifp->if_fwd_cacheok) {
route_copyin(src, &ifp->if_src_route, sizeof (*src));
} else {
- rtfree(src->ro_rt);
- src->ro_rt = NULL;
+ ROUTE_RELEASE(src);
}
lck_mtx_unlock(&ifp->if_cached_route_lock);
}
route_copyin((struct route *)src,
(struct route *)&ifp->if_src_route6, sizeof (*src));
} else {
- rtfree(src->ro_rt);
- src->ro_rt = NULL;
+ ROUTE_RELEASE(src);
}
lck_mtx_unlock(&ifp->if_cached_route_lock);
}
ifp_src_route_copyout(ifp, &src_rt);
- if (src_rt.ro_rt == NULL || !(src_rt.ro_rt->rt_flags & RTF_UP) ||
- src_ip.s_addr != dst->sin_addr.s_addr ||
- src_rt.ro_rt->generation_id != route_generation) {
- if (src_rt.ro_rt != NULL) {
- rtfree(src_rt.ro_rt);
- src_rt.ro_rt = NULL;
- } else if (dst->sin_family != AF_INET) {
+ if (ROUTE_UNUSABLE(&src_rt) || src_ip.s_addr != dst->sin_addr.s_addr) {
+ ROUTE_RELEASE(&src_rt);
+ if (dst->sin_family != AF_INET) {
bzero(&src_rt.ro_dst, sizeof (src_rt.ro_dst));
dst->sin_len = sizeof (src_rt.ro_dst);
dst->sin_family = AF_INET;
ifp_src_route6_copyout(ifp, &src_rt);
- if (src_rt.ro_rt == NULL || !(src_rt.ro_rt->rt_flags & RTF_UP) ||
- !IN6_ARE_ADDR_EQUAL(src_ip6, &src_rt.ro_dst.sin6_addr) ||
- src_rt.ro_rt->generation_id != route_generation) {
- if (src_rt.ro_rt != NULL) {
- rtfree(src_rt.ro_rt);
- src_rt.ro_rt = NULL;
- } else if (src_rt.ro_dst.sin6_family != AF_INET6) {
+ if (ROUTE_UNUSABLE(&src_rt) ||
+ !IN6_ARE_ADDR_EQUAL(src_ip6, &src_rt.ro_dst.sin6_addr)) {
+ ROUTE_RELEASE(&src_rt);
+ if (src_rt.ro_dst.sin6_family != AF_INET6) {
bzero(&src_rt.ro_dst, sizeof (src_rt.ro_dst));
src_rt.ro_dst.sin6_len = sizeof (src_rt.ro_dst);
src_rt.ro_dst.sin6_family = AF_INET6;
#endif /* INET6 */
void
-if_lqm_update(struct ifnet *ifp, int lqm)
+if_lqm_update(struct ifnet *ifp, int lqm, int locked)
{
struct kev_dl_link_quality_metric_data ev_lqm_data;
VERIFY(lqm >= IFNET_LQM_MIN && lqm <= IFNET_LQM_MAX);
/* Normalize to edge */
- if (lqm > IFNET_LQM_THRESH_UNKNOWN && lqm <= IFNET_LQM_THRESH_POOR)
+ if (lqm >= 0 && lqm <= IFNET_LQM_THRESH_BAD)
+ lqm = IFNET_LQM_THRESH_BAD;
+ else if (lqm > IFNET_LQM_THRESH_BAD && lqm <= IFNET_LQM_THRESH_POOR)
lqm = IFNET_LQM_THRESH_POOR;
else if (lqm > IFNET_LQM_THRESH_POOR && lqm <= IFNET_LQM_THRESH_GOOD)
lqm = IFNET_LQM_THRESH_GOOD;
- ifnet_lock_exclusive(ifp);
- if (lqm == ifp->if_lqm) {
- ifnet_lock_done(ifp);
+ /*
+ * Take the lock if needed
+ */
+ if (!locked)
+ ifnet_lock_exclusive(ifp);
+
+ if (lqm == ifp->if_interface_state.lqm_state &&
+ (ifp->if_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_LQM_STATE_VALID)) {
+ /*
+ * Release the lock if was not held by the caller
+ */
+ if (!locked)
+ ifnet_lock_done(ifp);
return; /* nothing to update */
}
- ifp->if_lqm = lqm;
+ ifp->if_interface_state.valid_bitmask |=
+ IF_INTERFACE_STATE_LQM_STATE_VALID;
+ ifp->if_interface_state.lqm_state = lqm;
+
+ /*
+ * Don't want to hold the lock when issuing kernel events
+ */
ifnet_lock_done(ifp);
bzero(&ev_lqm_data, sizeof (ev_lqm_data));
dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_LINK_QUALITY_METRIC_CHANGED,
(struct net_event_data *)&ev_lqm_data, sizeof (ev_lqm_data));
+
+ /*
+ * Reacquire the lock for the caller
+ */
+ if (locked)
+ ifnet_lock_exclusive(ifp);
}
-/* for uuid.c */
-int
-uuid_get_ethernet(u_int8_t *node)
+static void
+if_rrc_state_update(struct ifnet *ifp, unsigned int rrc_state)
{
- struct ifnet *ifp;
- struct sockaddr_dl *sdl;
+ struct kev_dl_rrc_state kev;
+
+ if (rrc_state == ifp->if_interface_state.rrc_state &&
+ (ifp->if_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_RRC_STATE_VALID))
+ return;
- ifnet_head_lock_shared();
- TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
- ifnet_lock_shared(ifp);
- IFA_LOCK_SPIN(ifp->if_lladdr);
- sdl = (struct sockaddr_dl *)(void *)ifp->if_lladdr->ifa_addr;
- if (sdl->sdl_type == IFT_ETHER) {
- memcpy(node, LLADDR(sdl), ETHER_ADDR_LEN);
- IFA_UNLOCK(ifp->if_lladdr);
- ifnet_lock_done(ifp);
- ifnet_head_done();
- return (0);
- }
- IFA_UNLOCK(ifp->if_lladdr);
+ ifp->if_interface_state.valid_bitmask |=
+ IF_INTERFACE_STATE_RRC_STATE_VALID;
+
+ ifp->if_interface_state.rrc_state = rrc_state;
+
+ /*
+ * Don't want to hold the lock when issuing kernel events
+ */
+ ifnet_lock_done(ifp);
+
+ bzero(&kev, sizeof(struct kev_dl_rrc_state));
+ kev.rrc_state = rrc_state;
+
+ dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_RRC_STATE_CHANGED,
+ (struct net_event_data *)&kev, sizeof(struct kev_dl_rrc_state));
+
+ ifnet_lock_exclusive(ifp);
+}
+
+errno_t
+if_state_update(struct ifnet *ifp,
+ struct if_interface_state* if_interface_state)
+{
+ u_short if_index_available = 0;
+
+ ifnet_lock_exclusive(ifp);
+
+ if ((ifp->if_type != IFT_CELLULAR) &&
+ (if_interface_state->valid_bitmask &
+ IF_INTERFACE_STATE_RRC_STATE_VALID)) {
+ ifnet_lock_done(ifp);
+ return (ENOTSUP);
+ }
+ if ((if_interface_state->valid_bitmask &
+ IF_INTERFACE_STATE_LQM_STATE_VALID) &&
+ (if_interface_state->lqm_state < IFNET_LQM_MIN ||
+ if_interface_state->lqm_state > IFNET_LQM_MAX)) {
+ ifnet_lock_done(ifp);
+ return (EINVAL);
+ }
+ if ((if_interface_state->valid_bitmask &
+ IF_INTERFACE_STATE_RRC_STATE_VALID) &&
+ if_interface_state->rrc_state !=
+ IF_INTERFACE_STATE_RRC_STATE_IDLE &&
+ if_interface_state->rrc_state !=
+ IF_INTERFACE_STATE_RRC_STATE_CONNECTED) {
+ ifnet_lock_done(ifp);
+ return (EINVAL);
+ }
+
+ if (if_interface_state->valid_bitmask &
+ IF_INTERFACE_STATE_LQM_STATE_VALID) {
+ if_lqm_update(ifp, if_interface_state->lqm_state, 1);
+ }
+ if (if_interface_state->valid_bitmask &
+ IF_INTERFACE_STATE_RRC_STATE_VALID) {
+ if_rrc_state_update(ifp, if_interface_state->rrc_state);
+ }
+ if (if_interface_state->valid_bitmask &
+ IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID) {
+ ifp->if_interface_state.valid_bitmask |=
+ IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID;
+ ifp->if_interface_state.interface_availability =
+ if_interface_state->interface_availability;
+
+ if (ifp->if_interface_state.interface_availability ==
+ IF_INTERFACE_STATE_INTERFACE_AVAILABLE) {
+ if_index_available = ifp->if_index;
+ }
+ }
+ ifnet_lock_done(ifp);
+
+ /*
+ * Check if the TCP connections going on this interface should be
+ * forced to send probe packets instead of waiting for TCP timers
+ * to fire. This will be done when there is an explicit
+ * notification that the interface became available.
+ */
+ if (if_index_available > 0)
+ tcp_interface_send_probe(if_index_available);
+
+ return (0);
+}
+
+void
+if_get_state(struct ifnet *ifp,
+ struct if_interface_state* if_interface_state)
+{
+ ifnet_lock_shared(ifp);
+
+ if_interface_state->valid_bitmask = 0;
+
+ if (ifp->if_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_RRC_STATE_VALID) {
+ if_interface_state->valid_bitmask |=
+ IF_INTERFACE_STATE_RRC_STATE_VALID;
+ if_interface_state->rrc_state =
+ ifp->if_interface_state.rrc_state;
+ }
+ if (ifp->if_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_LQM_STATE_VALID) {
+ if_interface_state->valid_bitmask |=
+ IF_INTERFACE_STATE_LQM_STATE_VALID;
+ if_interface_state->lqm_state =
+ ifp->if_interface_state.lqm_state;
+ }
+ if (ifp->if_interface_state.valid_bitmask &
+ IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID) {
+ if_interface_state->valid_bitmask |=
+ IF_INTERFACE_STATE_INTERFACE_AVAILABILITY_VALID;
+ if_interface_state->interface_availability =
+ ifp->if_interface_state.interface_availability;
+ }
+
+ ifnet_lock_done(ifp);
+}
+
+errno_t
+if_probe_connectivity(struct ifnet *ifp, u_int32_t conn_probe)
+{
+ ifnet_lock_exclusive(ifp);
+ if (conn_probe > 1) {
+ ifnet_lock_done(ifp);
+ return (EINVAL);
+ }
+ if (conn_probe == 0)
+ ifp->if_eflags &= ~IFEF_PROBE_CONNECTIVITY;
+ else
+ ifp->if_eflags |= IFEF_PROBE_CONNECTIVITY;
+ ifnet_lock_done(ifp);
+
+ tcp_probe_connectivity(ifp, conn_probe);
+ return (0);
+}
+
+/* for uuid.c */
+int
+uuid_get_ethernet(u_int8_t *node)
+{
+ struct ifnet *ifp;
+ struct sockaddr_dl *sdl;
+
+ ifnet_head_lock_shared();
+ TAILQ_FOREACH(ifp, &ifnet_head, if_link) {
+ ifnet_lock_shared(ifp);
+ IFA_LOCK_SPIN(ifp->if_lladdr);
+ sdl = (struct sockaddr_dl *)(void *)ifp->if_lladdr->ifa_addr;
+ if (sdl->sdl_type == IFT_ETHER) {
+ memcpy(node, LLADDR(sdl), ETHER_ADDR_LEN);
+ IFA_UNLOCK(ifp->if_lladdr);
+ ifnet_lock_done(ifp);
+ ifnet_head_done();
+ return (0);
+ }
+ IFA_UNLOCK(ifp->if_lladdr);
ifnet_lock_done(ifp);
}
ifnet_head_done();
sysctl_rxpoll SYSCTL_HANDLER_ARGS
{
#pragma unused(arg1, arg2)
- int i, err;
+ uint32_t i;
+ int err;
i = if_rxpoll;
}
static int
-sysctl_sndq_maxlen SYSCTL_HANDLER_ARGS
+sysctl_rxpoll_mode_holdtime SYSCTL_HANDLER_ARGS
{
#pragma unused(arg1, arg2)
- int i, err;
+ uint64_t q;
+ int err;
- i = if_sndq_maxlen;
+ q = if_rxpoll_mode_holdtime;
- err = sysctl_handle_int(oidp, &i, 0, req);
+ err = sysctl_handle_quad(oidp, &q, 0, req);
if (err != 0 || req->newptr == USER_ADDR_NULL)
return (err);
- if (i < IF_SNDQ_MINLEN)
- i = IF_SNDQ_MINLEN;
+ if (q < IF_RXPOLL_MODE_HOLDTIME_MIN)
+ q = IF_RXPOLL_MODE_HOLDTIME_MIN;
+
+ if_rxpoll_mode_holdtime = q;
- if_sndq_maxlen = i;
return (err);
}
static int
-sysctl_rcvq_maxlen SYSCTL_HANDLER_ARGS
+sysctl_rxpoll_sample_holdtime SYSCTL_HANDLER_ARGS
{
#pragma unused(arg1, arg2)
- int i, err;
+ uint64_t q;
+ int err;
- i = if_rcvq_maxlen;
+ q = if_rxpoll_sample_holdtime;
- err = sysctl_handle_int(oidp, &i, 0, req);
+ err = sysctl_handle_quad(oidp, &q, 0, req);
if (err != 0 || req->newptr == USER_ADDR_NULL)
return (err);
- if (i < IF_RCVQ_MINLEN)
- i = IF_RCVQ_MINLEN;
+ if (q < IF_RXPOLL_SAMPLETIME_MIN)
+ q = IF_RXPOLL_SAMPLETIME_MIN;
+
+ if_rxpoll_sample_holdtime = q;
- if_rcvq_maxlen = i;
return (err);
}
-void
-ifnet_fclist_append(struct sfb *sp, struct sfb_fc_list *fcl)
+static int
+sysctl_rxpoll_interval_time SYSCTL_HANDLER_ARGS
{
- struct sfb_bin_fcentry *fce, *tfce;
+#pragma unused(arg1, arg2)
+ uint64_t q;
+ int err;
- lck_mtx_lock_spin(&ifnet_fclist_lock);
+ q = if_rxpoll_interval_time;
- SLIST_FOREACH_SAFE(fce, fcl, fce_link, tfce) {
- SLIST_REMOVE(fcl, fce, sfb_bin_fcentry, fce_link);
- SLIST_INSERT_HEAD(&ifnet_fclist, fce, fce_link);
- sp->sfb_stats.flow_feedback++;
- }
- VERIFY(SLIST_EMPTY(fcl) && !SLIST_EMPTY(&ifnet_fclist));
+ err = sysctl_handle_quad(oidp, &q, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
+
+ if (q < IF_RXPOLL_INTERVALTIME_MIN)
+ q = IF_RXPOLL_INTERVALTIME_MIN;
- wakeup(&ifnet_fclist);
+ if_rxpoll_interval_time = q;
- lck_mtx_unlock(&ifnet_fclist_lock);
+ return (err);
}
-struct sfb_bin_fcentry *
-ifnet_fce_alloc(int how)
+static int
+sysctl_rxpoll_wlowat SYSCTL_HANDLER_ARGS
{
- struct sfb_bin_fcentry *fce;
+#pragma unused(arg1, arg2)
+ uint32_t i;
+ int err;
- fce = (how == M_WAITOK) ? zalloc(ifnet_fcezone) :
- zalloc_noblock(ifnet_fcezone);
- if (fce != NULL)
- bzero(fce, ifnet_fcezone_size);
+ i = if_rxpoll_wlowat;
- return (fce);
-}
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
-void
-ifnet_fce_free(struct sfb_bin_fcentry *fce)
-{
- zfree(ifnet_fcezone, fce);
+ if (i == 0 || i >= if_rxpoll_whiwat)
+ return (EINVAL);
+
+ if_rxpoll_wlowat = i;
+ return (err);
}
-static void
-ifnet_fc_init(void)
+static int
+sysctl_rxpoll_whiwat SYSCTL_HANDLER_ARGS
{
- thread_t thread = THREAD_NULL;
+#pragma unused(arg1, arg2)
+ uint32_t i;
+ int err;
- SLIST_INIT(&ifnet_fclist);
- lck_mtx_init(&ifnet_fclist_lock, ifnet_snd_lock_group, NULL);
+ i = if_rxpoll_whiwat;
- ifnet_fcezone_size = P2ROUNDUP(sizeof (struct sfb_bin_fcentry),
- sizeof (u_int64_t));
- ifnet_fcezone = zinit(ifnet_fcezone_size,
- IFNET_FCEZONE_MAX * ifnet_fcezone_size, 0, IFNET_FCEZONE_NAME);
- if (ifnet_fcezone == NULL) {
- panic("%s: failed allocating %s", __func__, IFNET_FCEZONE_NAME);
- /* NOTREACHED */
- }
- zone_change(ifnet_fcezone, Z_EXPAND, TRUE);
- zone_change(ifnet_fcezone, Z_CALLERACCT, FALSE);
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
- if (kernel_thread_start(ifnet_fc_thread_func,
- NULL, &thread) != KERN_SUCCESS) {
- panic("%s: couldn't create flow event advisory thread",
- __func__);
- /* NOTREACHED */
- }
- thread_deallocate(thread);
+ if (i <= if_rxpoll_wlowat)
+ return (EINVAL);
+
+ if_rxpoll_whiwat = i;
+ return (err);
}
static int
-ifnet_fc_thread_cont(int err)
+sysctl_sndq_maxlen SYSCTL_HANDLER_ARGS
{
-#pragma unused(err)
- struct sfb_bin_fcentry *fce;
- struct inp_fc_entry *infc;
-
- for (;;) {
- lck_mtx_assert(&ifnet_fclist_lock, LCK_MTX_ASSERT_OWNED);
- while (SLIST_EMPTY(&ifnet_fclist)) {
- (void) msleep0(&ifnet_fclist, &ifnet_fclist_lock,
- (PSOCK | PSPIN), "ifnet_fc_cont", 0,
- ifnet_fc_thread_cont);
- /* NOTREACHED */
- }
+#pragma unused(arg1, arg2)
+ int i, err;
- fce = SLIST_FIRST(&ifnet_fclist);
- SLIST_REMOVE(&ifnet_fclist, fce, sfb_bin_fcentry, fce_link);
- SLIST_NEXT(fce, fce_link) = NULL;
- lck_mtx_unlock(&ifnet_fclist_lock);
+ i = if_sndq_maxlen;
- infc = inp_fc_getinp(fce->fce_flowhash);
- if (infc == NULL) {
- ifnet_fce_free(fce);
- lck_mtx_lock_spin(&ifnet_fclist_lock);
- continue;
- }
- VERIFY(infc->infc_inp != NULL);
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
- inp_fc_feedback(infc->infc_inp);
+ if (i < IF_SNDQ_MINLEN)
+ i = IF_SNDQ_MINLEN;
- inp_fc_entry_free(infc);
- ifnet_fce_free(fce);
- lck_mtx_lock_spin(&ifnet_fclist_lock);
- }
+ if_sndq_maxlen = i;
+ return (err);
}
-static void
-ifnet_fc_thread_func(void *v, wait_result_t w)
+static int
+sysctl_rcvq_maxlen SYSCTL_HANDLER_ARGS
{
-#pragma unused(v, w)
- lck_mtx_lock(&ifnet_fclist_lock);
- (void) msleep0(&ifnet_fclist, &ifnet_fclist_lock,
- (PSOCK | PSPIN), "ifnet_fc", 0, ifnet_fc_thread_cont);
- /*
- * msleep0() shouldn't have returned as PCATCH was not set;
- * therefore assert in this case.
- */
- lck_mtx_unlock(&ifnet_fclist_lock);
- VERIFY(0);
+#pragma unused(arg1, arg2)
+ int i, err;
+
+ i = if_rcvq_maxlen;
+
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
+
+ if (i < IF_RCVQ_MINLEN)
+ i = IF_RCVQ_MINLEN;
+
+ if_rcvq_maxlen = i;
+ return (err);
}
void
&kev.link_data, sizeof (kev));
}
+const void *
+dlil_ifaddr_bytes(const struct sockaddr_dl *sdl, size_t *sizep,
+ kauth_cred_t *credp)
+{
+ const u_int8_t *bytes;
+ size_t size;
+
+ bytes = CONST_LLADDR(sdl);
+ size = sdl->sdl_alen;
+
+#if CONFIG_MACF
+ if (dlil_lladdr_ckreq) {
+ switch (sdl->sdl_type) {
+ case IFT_ETHER:
+ case IFT_IEEE1394:
+ break;
+ default:
+ credp = NULL;
+ break;
+ };
+
+ if (credp && mac_system_check_info(*credp, "net.link.addr")) {
+ static const u_int8_t unspec[FIREWIRE_EUI64_LEN] = {
+ [0] = 2
+ };
+
+ switch (sdl->sdl_type) {
+ case IFT_ETHER:
+ VERIFY(size == ETHER_ADDR_LEN);
+ bytes = unspec;
+ break;
+ case IFT_IEEE1394:
+ VERIFY(size == FIREWIRE_EUI64_LEN);
+ bytes = unspec;
+ break;
+ default:
+ VERIFY(FALSE);
+ break;
+ };
+ }
+ }
+#else
+#pragma unused(credp)
+#endif
+
+ if (sizep != NULL) *sizep = size;
+ return (bytes);
+}
+
+void
+dlil_report_issues(struct ifnet *ifp, u_int8_t modid[DLIL_MODIDLEN],
+ u_int8_t info[DLIL_MODARGLEN])
+{
+ struct kev_dl_issues kev;
+ struct timeval tv;
+
+ VERIFY(ifp != NULL);
+ VERIFY(modid != NULL);
+ _CASSERT(sizeof (kev.modid) == DLIL_MODIDLEN);
+ _CASSERT(sizeof (kev.info) == DLIL_MODARGLEN);
+
+ bzero(&kev, sizeof (kev));
+
+ microtime(&tv);
+ kev.timestamp = tv.tv_sec;
+ bcopy(modid, &kev.modid, DLIL_MODIDLEN);
+ if (info != NULL)
+ bcopy(info, &kev.info, DLIL_MODARGLEN);
+
+ dlil_post_msg(ifp, KEV_DL_SUBCLASS, KEV_DL_ISSUES,
+ &kev.link_data, sizeof (kev));
+}
+
errno_t
ifnet_getset_opportunistic(ifnet_t ifp, u_long cmd, struct ifreq *ifr,
struct proc *p)
if (!(ifp->if_eflags & IFEF_TXSTART))
return (ENXIO);
+ ifq = &ifp->if_snd;
+
switch (level) {
case IFNET_THROTTLE_OFF:
case IFNET_THROTTLE_OPPORTUNISTIC:
return (EINVAL);
}
- ifq = &ifp->if_snd;
IFCQ_LOCK(ifq);
if (IFCQ_IS_ENABLED(ifq))
IFCQ_SET_THROTTLE(ifq, level, err);
IFCQ_UNLOCK(ifq);
if (err == 0) {
- printf("%s%d: throttling level set to %d\n", ifp->if_name,
- ifp->if_unit, level);
+ printf("%s: throttling level set to %d\n", if_name(ifp),
+ level);
if (level == IFNET_THROTTLE_OFF)
ifnet_start(ifp);
}
return (err);
}
+
+errno_t
+ifnet_getset_log(ifnet_t ifp, u_long cmd, struct ifreq *ifr,
+ struct proc *p)
+{
+#pragma unused(p)
+ errno_t result = 0;
+ uint32_t flags;
+ int level, category, subcategory;
+
+ VERIFY(cmd == SIOCSIFLOG || cmd == SIOCGIFLOG);
+
+ if (cmd == SIOCSIFLOG) {
+ if ((result = priv_check_cred(kauth_cred_get(),
+ PRIV_NET_INTERFACE_CONTROL, 0)) != 0)
+ return (result);
+
+ level = ifr->ifr_log.ifl_level;
+ if (level < IFNET_LOG_MIN || level > IFNET_LOG_MAX)
+ result = EINVAL;
+
+ flags = ifr->ifr_log.ifl_flags;
+ if ((flags &= IFNET_LOGF_MASK) == 0)
+ result = EINVAL;
+
+ category = ifr->ifr_log.ifl_category;
+ subcategory = ifr->ifr_log.ifl_subcategory;
+
+ if (result == 0)
+ result = ifnet_set_log(ifp, level, flags,
+ category, subcategory);
+ } else {
+ result = ifnet_get_log(ifp, &level, &flags, &category,
+ &subcategory);
+ if (result == 0) {
+ ifr->ifr_log.ifl_level = level;
+ ifr->ifr_log.ifl_flags = flags;
+ ifr->ifr_log.ifl_category = category;
+ ifr->ifr_log.ifl_subcategory = subcategory;
+ }
+ }
+
+ return (result);
+}
+
+int
+ifnet_set_log(struct ifnet *ifp, int32_t level, uint32_t flags,
+ int32_t category, int32_t subcategory)
+{
+ int err = 0;
+
+ VERIFY(level >= IFNET_LOG_MIN && level <= IFNET_LOG_MAX);
+ VERIFY(flags & IFNET_LOGF_MASK);
+
+ /*
+ * The logging level applies to all facilities; make sure to
+ * update them all with the most current level.
+ */
+ flags |= ifp->if_log.flags;
+
+ if (ifp->if_output_ctl != NULL) {
+ struct ifnet_log_params l;
+
+ bzero(&l, sizeof (l));
+ l.level = level;
+ l.flags = flags;
+ l.flags &= ~IFNET_LOGF_DLIL;
+ l.category = category;
+ l.subcategory = subcategory;
+
+ /* Send this request to lower layers */
+ if (l.flags != 0) {
+ err = ifp->if_output_ctl(ifp, IFNET_CTL_SET_LOG,
+ sizeof (l), &l);
+ }
+ } else if ((flags & ~IFNET_LOGF_DLIL) && ifp->if_output_ctl == NULL) {
+ /*
+ * If targeted to the lower layers without an output
+ * control callback registered on the interface, just
+ * silently ignore facilities other than ours.
+ */
+ flags &= IFNET_LOGF_DLIL;
+ if (flags == 0 && (!(ifp->if_log.flags & IFNET_LOGF_DLIL)))
+ level = 0;
+ }
+
+ if (err == 0) {
+ if ((ifp->if_log.level = level) == IFNET_LOG_DEFAULT)
+ ifp->if_log.flags = 0;
+ else
+ ifp->if_log.flags |= flags;
+
+ log(LOG_INFO, "%s: logging level set to %d flags=%b "
+ "arg=%b, category=%d subcategory=%d\n", if_name(ifp),
+ ifp->if_log.level, ifp->if_log.flags,
+ IFNET_LOGF_BITS, flags, IFNET_LOGF_BITS,
+ category, subcategory);
+ }
+
+ return (err);
+}
+
+int
+ifnet_get_log(struct ifnet *ifp, int32_t *level, uint32_t *flags,
+ int32_t *category, int32_t *subcategory)
+{
+ if (level != NULL)
+ *level = ifp->if_log.level;
+ if (flags != NULL)
+ *flags = ifp->if_log.flags;
+ if (category != NULL)
+ *category = ifp->if_log.category;
+ if (subcategory != NULL)
+ *subcategory = ifp->if_log.subcategory;
+
+ return (0);
+}
+
+int
+ifnet_notify_address(struct ifnet *ifp, int af)
+{
+ struct ifnet_notify_address_params na;
+
+#if PF
+ (void) pf_ifaddr_hook(ifp);
+#endif /* PF */
+
+ if (ifp->if_output_ctl == NULL)
+ return (EOPNOTSUPP);
+
+ bzero(&na, sizeof (na));
+ na.address_family = af;
+
+ return (ifp->if_output_ctl(ifp, IFNET_CTL_NOTIFY_ADDRESS,
+ sizeof (na), &na));
+}
+
+errno_t
+ifnet_flowid(struct ifnet *ifp, uint32_t *flowid)
+{
+ if (ifp == NULL || flowid == NULL) {
+ return (EINVAL);
+ } else if (!(ifp->if_eflags & IFEF_TXSTART) ||
+ !(ifp->if_refflags & IFRF_ATTACHED)) {
+ return (ENXIO);
+ }
+
+ *flowid = ifp->if_flowhash;
+
+ return (0);
+}
+
+errno_t
+ifnet_disable_output(struct ifnet *ifp)
+{
+ int err;
+
+ if (ifp == NULL) {
+ return (EINVAL);
+ } else if (!(ifp->if_eflags & IFEF_TXSTART) ||
+ !(ifp->if_refflags & IFRF_ATTACHED)) {
+ return (ENXIO);
+ }
+
+ if ((err = ifnet_fc_add(ifp)) == 0) {
+ lck_mtx_lock_spin(&ifp->if_start_lock);
+ ifp->if_start_flags |= IFSF_FLOW_CONTROLLED;
+ lck_mtx_unlock(&ifp->if_start_lock);
+ }
+ return (err);
+}
+
+errno_t
+ifnet_enable_output(struct ifnet *ifp)
+{
+ if (ifp == NULL) {
+ return (EINVAL);
+ } else if (!(ifp->if_eflags & IFEF_TXSTART) ||
+ !(ifp->if_refflags & IFRF_ATTACHED)) {
+ return (ENXIO);
+ }
+
+ ifnet_start_common(ifp, 1);
+ return (0);
+}
+
+void
+ifnet_flowadv(uint32_t flowhash)
+{
+ struct ifnet_fc_entry *ifce;
+ struct ifnet *ifp;
+
+ ifce = ifnet_fc_get(flowhash);
+ if (ifce == NULL)
+ return;
+
+ VERIFY(ifce->ifce_ifp != NULL);
+ ifp = ifce->ifce_ifp;
+
+ /* flow hash gets recalculated per attach, so check */
+ if (ifnet_is_attached(ifp, 1)) {
+ if (ifp->if_flowhash == flowhash)
+ (void) ifnet_enable_output(ifp);
+ ifnet_decr_iorefcnt(ifp);
+ }
+ ifnet_fc_entry_free(ifce);
+}
+
+/*
+ * Function to compare ifnet_fc_entries in ifnet flow control tree
+ */
+static inline int
+ifce_cmp(const struct ifnet_fc_entry *fc1, const struct ifnet_fc_entry *fc2)
+{
+ return (fc1->ifce_flowhash - fc2->ifce_flowhash);
+}
+
+static int
+ifnet_fc_add(struct ifnet *ifp)
+{
+ struct ifnet_fc_entry keyfc, *ifce;
+ uint32_t flowhash;
+
+ VERIFY(ifp != NULL && (ifp->if_eflags & IFEF_TXSTART));
+ VERIFY(ifp->if_flowhash != 0);
+ flowhash = ifp->if_flowhash;
+
+ bzero(&keyfc, sizeof (keyfc));
+ keyfc.ifce_flowhash = flowhash;
+
+ lck_mtx_lock_spin(&ifnet_fc_lock);
+ ifce = RB_FIND(ifnet_fc_tree, &ifnet_fc_tree, &keyfc);
+ if (ifce != NULL && ifce->ifce_ifp == ifp) {
+ /* Entry is already in ifnet_fc_tree, return */
+ lck_mtx_unlock(&ifnet_fc_lock);
+ return (0);
+ }
+
+ if (ifce != NULL) {
+ /*
+ * There is a different fc entry with the same flow hash
+ * but different ifp pointer. There can be a collision
+ * on flow hash but the probability is low. Let's just
+ * avoid adding a second one when there is a collision.
+ */
+ lck_mtx_unlock(&ifnet_fc_lock);
+ return (EAGAIN);
+ }
+
+ /* become regular mutex */
+ lck_mtx_convert_spin(&ifnet_fc_lock);
+
+ ifce = zalloc_noblock(ifnet_fc_zone);
+ if (ifce == NULL) {
+ /* memory allocation failed */
+ lck_mtx_unlock(&ifnet_fc_lock);
+ return (ENOMEM);
+ }
+ bzero(ifce, ifnet_fc_zone_size);
+
+ ifce->ifce_flowhash = flowhash;
+ ifce->ifce_ifp = ifp;
+
+ RB_INSERT(ifnet_fc_tree, &ifnet_fc_tree, ifce);
+ lck_mtx_unlock(&ifnet_fc_lock);
+ return (0);
+}
+
+static struct ifnet_fc_entry *
+ifnet_fc_get(uint32_t flowhash)
+{
+ struct ifnet_fc_entry keyfc, *ifce;
+ struct ifnet *ifp;
+
+ bzero(&keyfc, sizeof (keyfc));
+ keyfc.ifce_flowhash = flowhash;
+
+ lck_mtx_lock_spin(&ifnet_fc_lock);
+ ifce = RB_FIND(ifnet_fc_tree, &ifnet_fc_tree, &keyfc);
+ if (ifce == NULL) {
+ /* Entry is not present in ifnet_fc_tree, return */
+ lck_mtx_unlock(&ifnet_fc_lock);
+ return (NULL);
+ }
+
+ RB_REMOVE(ifnet_fc_tree, &ifnet_fc_tree, ifce);
+
+ VERIFY(ifce->ifce_ifp != NULL);
+ ifp = ifce->ifce_ifp;
+
+ /* become regular mutex */
+ lck_mtx_convert_spin(&ifnet_fc_lock);
+
+ if (!ifnet_is_attached(ifp, 0)) {
+ /*
+ * This ifp is not attached or in the process of being
+ * detached; just don't process it.
+ */
+ ifnet_fc_entry_free(ifce);
+ ifce = NULL;
+ }
+ lck_mtx_unlock(&ifnet_fc_lock);
+
+ return (ifce);
+}
+
+static void
+ifnet_fc_entry_free(struct ifnet_fc_entry *ifce)
+{
+ zfree(ifnet_fc_zone, ifce);
+}
+
+static uint32_t
+ifnet_calc_flowhash(struct ifnet *ifp)
+{
+ struct ifnet_flowhash_key fh __attribute__((aligned(8)));
+ uint32_t flowhash = 0;
+
+ if (ifnet_flowhash_seed == 0)
+ ifnet_flowhash_seed = RandomULong();
+
+ bzero(&fh, sizeof (fh));
+
+ (void) snprintf(fh.ifk_name, sizeof (fh.ifk_name), "%s", ifp->if_name);
+ fh.ifk_unit = ifp->if_unit;
+ fh.ifk_flags = ifp->if_flags;
+ fh.ifk_eflags = ifp->if_eflags;
+ fh.ifk_capabilities = ifp->if_capabilities;
+ fh.ifk_capenable = ifp->if_capenable;
+ fh.ifk_output_sched_model = ifp->if_output_sched_model;
+ fh.ifk_rand1 = RandomULong();
+ fh.ifk_rand2 = RandomULong();
+
+try_again:
+ flowhash = net_flowhash(&fh, sizeof (fh), ifnet_flowhash_seed);
+ if (flowhash == 0) {
+ /* try to get a non-zero flowhash */
+ ifnet_flowhash_seed = RandomULong();
+ goto try_again;
+ }
+
+ return (flowhash);
+}
+
+int
+ifnet_set_netsignature(struct ifnet *ifp, uint8_t family, uint8_t len,
+ uint16_t flags, uint8_t *data)
+{
+#pragma unused(flags)
+ int error = 0;
+
+ switch (family) {
+ case AF_INET:
+ if_inetdata_lock_exclusive(ifp);
+ if (IN_IFEXTRA(ifp) != NULL) {
+ if (len == 0) {
+ /* Allow clearing the signature */
+ IN_IFEXTRA(ifp)->netsig_len = 0;
+ bzero(IN_IFEXTRA(ifp)->netsig,
+ sizeof (IN_IFEXTRA(ifp)->netsig));
+ if_inetdata_lock_done(ifp);
+ break;
+ } else if (len > sizeof (IN_IFEXTRA(ifp)->netsig)) {
+ error = EINVAL;
+ if_inetdata_lock_done(ifp);
+ break;
+ }
+ IN_IFEXTRA(ifp)->netsig_len = len;
+ bcopy(data, IN_IFEXTRA(ifp)->netsig, len);
+ } else {
+ error = ENOMEM;
+ }
+ if_inetdata_lock_done(ifp);
+ break;
+
+ case AF_INET6:
+ if_inet6data_lock_exclusive(ifp);
+ if (IN6_IFEXTRA(ifp) != NULL) {
+ if (len == 0) {
+ /* Allow clearing the signature */
+ IN6_IFEXTRA(ifp)->netsig_len = 0;
+ bzero(IN6_IFEXTRA(ifp)->netsig,
+ sizeof (IN6_IFEXTRA(ifp)->netsig));
+ if_inet6data_lock_done(ifp);
+ break;
+ } else if (len > sizeof (IN6_IFEXTRA(ifp)->netsig)) {
+ error = EINVAL;
+ if_inet6data_lock_done(ifp);
+ break;
+ }
+ IN6_IFEXTRA(ifp)->netsig_len = len;
+ bcopy(data, IN6_IFEXTRA(ifp)->netsig, len);
+ } else {
+ error = ENOMEM;
+ }
+ if_inet6data_lock_done(ifp);
+ break;
+
+ default:
+ error = EINVAL;
+ break;
+ }
+
+ return (error);
+}
+
+int
+ifnet_get_netsignature(struct ifnet *ifp, uint8_t family, uint8_t *len,
+ uint16_t *flags, uint8_t *data)
+{
+ int error = 0;
+
+ if (ifp == NULL || len == NULL || flags == NULL || data == NULL)
+ return (EINVAL);
+
+ switch (family) {
+ case AF_INET:
+ if_inetdata_lock_shared(ifp);
+ if (IN_IFEXTRA(ifp) != NULL) {
+ if (*len == 0 || *len < IN_IFEXTRA(ifp)->netsig_len) {
+ error = EINVAL;
+ if_inetdata_lock_done(ifp);
+ break;
+ }
+ if ((*len = IN_IFEXTRA(ifp)->netsig_len) > 0)
+ bcopy(IN_IFEXTRA(ifp)->netsig, data, *len);
+ else
+ error = ENOENT;
+ } else {
+ error = ENOMEM;
+ }
+ if_inetdata_lock_done(ifp);
+ break;
+
+ case AF_INET6:
+ if_inet6data_lock_shared(ifp);
+ if (IN6_IFEXTRA(ifp) != NULL) {
+ if (*len == 0 || *len < IN6_IFEXTRA(ifp)->netsig_len) {
+ error = EINVAL;
+ if_inet6data_lock_done(ifp);
+ break;
+ }
+ if ((*len = IN6_IFEXTRA(ifp)->netsig_len) > 0)
+ bcopy(IN6_IFEXTRA(ifp)->netsig, data, *len);
+ else
+ error = ENOENT;
+ } else {
+ error = ENOMEM;
+ }
+ if_inet6data_lock_done(ifp);
+ break;
+
+ default:
+ error = EINVAL;
+ break;
+ }
+
+ if (error == 0)
+ *flags = 0;
+
+ return (error);
+}
+
+static void
+dlil_output_cksum_dbg(struct ifnet *ifp, struct mbuf *m, uint32_t hoff,
+ protocol_family_t pf)
+{
+#pragma unused(ifp)
+ uint32_t did_sw;
+
+ if (!(hwcksum_dbg_mode & HWCKSUM_DBG_FINALIZE_FORCED) ||
+ (m->m_pkthdr.csum_flags & (CSUM_TSO_IPV4|CSUM_TSO_IPV6)))
+ return;
+
+ switch (pf) {
+ case PF_INET:
+ did_sw = in_finalize_cksum(m, hoff, m->m_pkthdr.csum_flags);
+ if (did_sw & CSUM_DELAY_IP)
+ hwcksum_dbg_finalized_hdr++;
+ if (did_sw & CSUM_DELAY_DATA)
+ hwcksum_dbg_finalized_data++;
+ break;
+#if INET6
+ case PF_INET6:
+ /*
+ * Checksum offload should not have been enabled when
+ * extension headers exist; that also means that we
+ * cannot force-finalize packets with extension headers.
+ * Indicate to the callee should it skip such case by
+ * setting optlen to -1.
+ */
+ did_sw = in6_finalize_cksum(m, hoff, -1, -1,
+ m->m_pkthdr.csum_flags);
+ if (did_sw & CSUM_DELAY_IPV6_DATA)
+ hwcksum_dbg_finalized_data++;
+ break;
+#endif /* INET6 */
+ default:
+ return;
+ }
+}
+
+static void
+dlil_input_cksum_dbg(struct ifnet *ifp, struct mbuf *m, char *frame_header,
+ protocol_family_t pf)
+{
+ uint16_t sum;
+ uint32_t hlen;
+
+ if (frame_header == NULL ||
+ frame_header < (char *)mbuf_datastart(m) ||
+ frame_header > (char *)m->m_data) {
+ printf("%s: frame header pointer 0x%llx out of range "
+ "[0x%llx,0x%llx] for mbuf 0x%llx\n", if_name(ifp),
+ (uint64_t)VM_KERNEL_ADDRPERM(frame_header),
+ (uint64_t)VM_KERNEL_ADDRPERM(mbuf_datastart(m)),
+ (uint64_t)VM_KERNEL_ADDRPERM(m->m_data),
+ (uint64_t)VM_KERNEL_ADDRPERM(m));
+ return;
+ }
+ hlen = (m->m_data - frame_header);
+
+ switch (pf) {
+ case PF_INET:
+#if INET6
+ case PF_INET6:
+#endif /* INET6 */
+ break;
+ default:
+ return;
+ }
+
+ /*
+ * Force partial checksum offload; useful to simulate cases
+ * where the hardware does not support partial checksum offload,
+ * in order to validate correctness throughout the layers above.
+ */
+ if (hwcksum_dbg_mode & HWCKSUM_DBG_PARTIAL_FORCED) {
+ uint32_t foff = hwcksum_dbg_partial_rxoff_forced;
+
+ if (foff > (uint32_t)m->m_pkthdr.len)
+ return;
+
+ m->m_pkthdr.csum_flags &= ~CSUM_RX_FLAGS;
+
+ /* Compute 16-bit 1's complement sum from forced offset */
+ sum = m_sum16(m, foff, (m->m_pkthdr.len - foff));
+
+ m->m_pkthdr.csum_flags |= (CSUM_DATA_VALID | CSUM_PARTIAL);
+ m->m_pkthdr.csum_rx_val = sum;
+ m->m_pkthdr.csum_rx_start = (foff + hlen);
+
+ hwcksum_dbg_partial_forced++;
+ hwcksum_dbg_partial_forced_bytes += m->m_pkthdr.len;
+ }
+
+ /*
+ * Partial checksum offload verification (and adjustment);
+ * useful to validate and test cases where the hardware
+ * supports partial checksum offload.
+ */
+ if ((m->m_pkthdr.csum_flags &
+ (CSUM_DATA_VALID | CSUM_PARTIAL | CSUM_PSEUDO_HDR)) ==
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) {
+ uint32_t rxoff;
+
+ /* Start offset must begin after frame header */
+ rxoff = m->m_pkthdr.csum_rx_start;
+ if (hlen > rxoff) {
+ hwcksum_dbg_bad_rxoff++;
+ if (dlil_verbose) {
+ printf("%s: partial cksum start offset %d "
+ "is less than frame header length %d for "
+ "mbuf 0x%llx\n", if_name(ifp), rxoff, hlen,
+ (uint64_t)VM_KERNEL_ADDRPERM(m));
+ }
+ return;
+ }
+ rxoff -=hlen;
+
+ if (!(hwcksum_dbg_mode & HWCKSUM_DBG_PARTIAL_FORCED)) {
+ /*
+ * Compute the expected 16-bit 1's complement sum;
+ * skip this if we've already computed it above
+ * when partial checksum offload is forced.
+ */
+ sum = m_sum16(m, rxoff, (m->m_pkthdr.len - rxoff));
+
+ /* Hardware or driver is buggy */
+ if (sum != m->m_pkthdr.csum_rx_val) {
+ hwcksum_dbg_bad_cksum++;
+ if (dlil_verbose) {
+ printf("%s: bad partial cksum value "
+ "0x%x (expected 0x%x) for mbuf "
+ "0x%llx [rx_start %d]\n",
+ if_name(ifp),
+ m->m_pkthdr.csum_rx_val, sum,
+ (uint64_t)VM_KERNEL_ADDRPERM(m),
+ m->m_pkthdr.csum_rx_start);
+ }
+ return;
+ }
+ }
+ hwcksum_dbg_verified++;
+
+ /*
+ * This code allows us to emulate various hardwares that
+ * perform 16-bit 1's complement sum beginning at various
+ * start offset values.
+ */
+ if (hwcksum_dbg_mode & HWCKSUM_DBG_PARTIAL_RXOFF_ADJ) {
+ uint32_t aoff = hwcksum_dbg_partial_rxoff_adj;
+
+ if (aoff == rxoff || aoff > (uint32_t)m->m_pkthdr.len)
+ return;
+
+ sum = m_adj_sum16(m, rxoff, aoff, sum);
+
+ m->m_pkthdr.csum_rx_val = sum;
+ m->m_pkthdr.csum_rx_start = (aoff + hlen);
+
+ hwcksum_dbg_adjusted++;
+ }
+ }
+}
+
+static int
+sysctl_hwcksum_dbg_mode SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ u_int32_t i;
+ int err;
+
+ i = hwcksum_dbg_mode;
+
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
+
+ if (hwcksum_dbg == 0)
+ return (ENODEV);
+
+ if ((i & ~HWCKSUM_DBG_MASK) != 0)
+ return (EINVAL);
+
+ hwcksum_dbg_mode = (i & HWCKSUM_DBG_MASK);
+
+ return (err);
+}
+
+static int
+sysctl_hwcksum_dbg_partial_rxoff_forced SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ u_int32_t i;
+ int err;
+
+ i = hwcksum_dbg_partial_rxoff_forced;
+
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
+
+ if (!(hwcksum_dbg_mode & HWCKSUM_DBG_PARTIAL_FORCED))
+ return (ENODEV);
+
+ hwcksum_dbg_partial_rxoff_forced = i;
+
+ return (err);
+}
+
+static int
+sysctl_hwcksum_dbg_partial_rxoff_adj SYSCTL_HANDLER_ARGS
+{
+#pragma unused(arg1, arg2)
+ u_int32_t i;
+ int err;
+
+ i = hwcksum_dbg_partial_rxoff_adj;
+
+ err = sysctl_handle_int(oidp, &i, 0, req);
+ if (err != 0 || req->newptr == USER_ADDR_NULL)
+ return (err);
+
+ if (!(hwcksum_dbg_mode & HWCKSUM_DBG_PARTIAL_RXOFF_ADJ))
+ return (ENODEV);
+
+ hwcksum_dbg_partial_rxoff_adj = i;
+
+ return (err);
+}
+
+static int
+sysctl_tx_chain_len_stats SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp, arg1, arg2)
+ int err;
+
+ if (req->oldptr == USER_ADDR_NULL) {
+
+ }
+ if (req->newptr != USER_ADDR_NULL) {
+ return (EPERM);
+ }
+ err = SYSCTL_OUT(req, &tx_chain_len_stats,
+ sizeof(struct chain_len_stats));
+
+ return (err);
+}
+
+
+#if DEBUG
+/* Blob for sum16 verification */
+static uint8_t sumdata[] = {
+ 0x1f, 0x8b, 0x08, 0x08, 0x4c, 0xe5, 0x9a, 0x4f, 0x00, 0x03,
+ 0x5f, 0x00, 0x5d, 0x91, 0x41, 0x4e, 0xc4, 0x30, 0x0c, 0x45,
+ 0xf7, 0x9c, 0xc2, 0x07, 0x18, 0xf5, 0x0e, 0xb0, 0xe2, 0x00,
+ 0x48, 0x88, 0xa5, 0xdb, 0xba, 0x49, 0x34, 0x69, 0xdc, 0x71,
+ 0x92, 0xa9, 0xc2, 0x8a, 0x6b, 0x70, 0x3d, 0x4e, 0x82, 0x93,
+ 0xb4, 0x08, 0xd8, 0xc5, 0xb1, 0xfd, 0xff, 0xb3, 0xfd, 0x4c,
+ 0x42, 0x5f, 0x1f, 0x9f, 0x11, 0x12, 0x43, 0xb2, 0x04, 0x93,
+ 0xe0, 0x7b, 0x01, 0x0e, 0x14, 0x07, 0x78, 0xd1, 0x78, 0x75,
+ 0x71, 0x71, 0xe9, 0x08, 0x84, 0x46, 0xf2, 0xc7, 0x3b, 0x09,
+ 0xe7, 0xd1, 0xd3, 0x8a, 0x57, 0x92, 0x33, 0xcd, 0x39, 0xcc,
+ 0xb0, 0x91, 0x89, 0xe0, 0x42, 0x53, 0x8b, 0xb7, 0x8c, 0x42,
+ 0x60, 0xd9, 0x9f, 0x7a, 0x55, 0x19, 0x76, 0xcb, 0x10, 0x49,
+ 0x35, 0xac, 0x0b, 0x5a, 0x3c, 0xbb, 0x65, 0x51, 0x8c, 0x90,
+ 0x7c, 0x69, 0x45, 0x45, 0x81, 0xb4, 0x2b, 0x70, 0x82, 0x85,
+ 0x55, 0x91, 0x17, 0x90, 0xdc, 0x14, 0x1e, 0x35, 0x52, 0xdd,
+ 0x02, 0x16, 0xef, 0xb5, 0x40, 0x89, 0xe2, 0x46, 0x53, 0xad,
+ 0x93, 0x6e, 0x98, 0x30, 0xe5, 0x08, 0xb7, 0xcc, 0x03, 0xbc,
+ 0x71, 0x86, 0x09, 0x43, 0x0d, 0x52, 0xf5, 0xa2, 0xf5, 0xa2,
+ 0x56, 0x11, 0x8d, 0xa8, 0xf5, 0xee, 0x92, 0x3d, 0xfe, 0x8c,
+ 0x67, 0x71, 0x8b, 0x0e, 0x2d, 0x70, 0x77, 0xbe, 0xbe, 0xea,
+ 0xbf, 0x9a, 0x8d, 0x9c, 0x53, 0x53, 0xe5, 0xe0, 0x4b, 0x87,
+ 0x85, 0xd2, 0x45, 0x95, 0x30, 0xc1, 0xcc, 0xe0, 0x74, 0x54,
+ 0x13, 0x58, 0xe8, 0xe8, 0x79, 0xa2, 0x09, 0x73, 0xa4, 0x0e,
+ 0x39, 0x59, 0x0c, 0xe6, 0x9c, 0xb2, 0x4f, 0x06, 0x5b, 0x8e,
+ 0xcd, 0x17, 0x6c, 0x5e, 0x95, 0x4d, 0x70, 0xa2, 0x0a, 0xbf,
+ 0xa3, 0xcc, 0x03, 0xbc, 0x5a, 0xe7, 0x75, 0x06, 0x5e, 0x75,
+ 0xef, 0x58, 0x8e, 0x15, 0xd1, 0x0a, 0x18, 0xff, 0xdd, 0xe6,
+ 0x02, 0x3b, 0xb5, 0xb4, 0xa1, 0xe0, 0x72, 0xfc, 0xe3, 0xab,
+ 0x07, 0xe0, 0x4d, 0x65, 0xea, 0x92, 0xeb, 0xf2, 0x7b, 0x17,
+ 0x05, 0xce, 0xc6, 0xf6, 0x2b, 0xbb, 0x70, 0x3d, 0x00, 0x95,
+ 0xe0, 0x07, 0x52, 0x3b, 0x58, 0xfc, 0x7c, 0x69, 0x4d, 0xe9,
+ 0xf7, 0xa9, 0x66, 0x1e, 0x1e, 0xbe, 0x01, 0x69, 0x98, 0xfe,
+ 0xc8, 0x28, 0x02, 0x00, 0x00
+};
+
+/* Precomputed 16-bit 1's complement sums for various spans of the above data */
+static struct {
+ int len;
+ uint16_t sum;
+} sumtbl[] = {
+ { 11, 0xcb6d },
+ { 20, 0x20dd },
+ { 27, 0xbabd },
+ { 32, 0xf3e8 },
+ { 37, 0x197d },
+ { 43, 0x9eae },
+ { 64, 0x4678 },
+ { 127, 0x9399 },
+ { 256, 0xd147 },
+ { 325, 0x0358 }
+};
+#define SUMTBL_MAX ((int)sizeof (sumtbl) / (int)sizeof (sumtbl[0]))
+
+static void
+dlil_verify_sum16(void)
+{
+ struct mbuf *m;
+ uint8_t *buf;
+ int n;
+
+ /* Make sure test data plus extra room for alignment fits in cluster */
+ _CASSERT((sizeof (sumdata) + (sizeof (uint64_t) * 2)) <= MCLBYTES);
+
+ m = m_getcl(M_WAITOK, MT_DATA, M_PKTHDR);
+ MH_ALIGN(m, sizeof (uint32_t)); /* 32-bit starting alignment */
+ buf = mtod(m, uint8_t *); /* base address */
+
+ for (n = 0; n < SUMTBL_MAX; n++) {
+ uint16_t len = sumtbl[n].len;
+ int i;
+
+ /* Verify for all possible alignments */
+ for (i = 0; i < (int)sizeof (uint64_t); i++) {
+ uint16_t sum;
+ uint8_t *c;
+
+ /* Copy over test data to mbuf */
+ VERIFY(len <= sizeof (sumdata));
+ c = buf + i;
+ bcopy(sumdata, c, len);
+
+ /* Zero-offset test (align by data pointer) */
+ m->m_data = (caddr_t)c;
+ m->m_len = len;
+ sum = m_sum16(m, 0, len);
+
+ /* Something is horribly broken; stop now */
+ if (sum != sumtbl[n].sum) {
+ panic("%s: broken m_sum16 for len=%d align=%d "
+ "sum=0x%04x [expected=0x%04x]\n", __func__,
+ len, i, sum, sumtbl[n].sum);
+ /* NOTREACHED */
+ }
+
+ /* Alignment test by offset (fixed data pointer) */
+ m->m_data = (caddr_t)buf;
+ m->m_len = i + len;
+ sum = m_sum16(m, i, len);
+
+ /* Something is horribly broken; stop now */
+ if (sum != sumtbl[n].sum) {
+ panic("%s: broken m_sum16 for len=%d offset=%d "
+ "sum=0x%04x [expected=0x%04x]\n", __func__,
+ len, i, sum, sumtbl[n].sum);
+ /* NOTREACHED */
+ }
+#if INET
+ /* Simple sum16 contiguous buffer test by aligment */
+ sum = b_sum16(c, len);
+
+ /* Something is horribly broken; stop now */
+ if (sum != sumtbl[n].sum) {
+ panic("%s: broken b_sum16 for len=%d align=%d "
+ "sum=0x%04x [expected=0x%04x]\n", __func__,
+ len, i, sum, sumtbl[n].sum);
+ /* NOTREACHED */
+ }
+#endif /* INET */
+ }
+ }
+ m_freem(m);
+
+ printf("DLIL: SUM16 self-tests PASSED\n");
+}
+#endif /* DEBUG */
+
+#define CASE_STRINGIFY(x) case x: return #x
+
+__private_extern__ const char *
+dlil_kev_dl_code_str(u_int32_t event_code)
+{
+ switch (event_code) {
+ CASE_STRINGIFY(KEV_DL_SIFFLAGS);
+ CASE_STRINGIFY(KEV_DL_SIFMETRICS);
+ CASE_STRINGIFY(KEV_DL_SIFMTU);
+ CASE_STRINGIFY(KEV_DL_SIFPHYS);
+ CASE_STRINGIFY(KEV_DL_SIFMEDIA);
+ CASE_STRINGIFY(KEV_DL_SIFGENERIC);
+ CASE_STRINGIFY(KEV_DL_ADDMULTI);
+ CASE_STRINGIFY(KEV_DL_DELMULTI);
+ CASE_STRINGIFY(KEV_DL_IF_ATTACHED);
+ CASE_STRINGIFY(KEV_DL_IF_DETACHING);
+ CASE_STRINGIFY(KEV_DL_IF_DETACHED);
+ CASE_STRINGIFY(KEV_DL_LINK_OFF);
+ CASE_STRINGIFY(KEV_DL_LINK_ON);
+ CASE_STRINGIFY(KEV_DL_PROTO_ATTACHED);
+ CASE_STRINGIFY(KEV_DL_PROTO_DETACHED);
+ CASE_STRINGIFY(KEV_DL_LINK_ADDRESS_CHANGED);
+ CASE_STRINGIFY(KEV_DL_WAKEFLAGS_CHANGED);
+ CASE_STRINGIFY(KEV_DL_IF_IDLE_ROUTE_REFCNT);
+ CASE_STRINGIFY(KEV_DL_IFCAP_CHANGED);
+ CASE_STRINGIFY(KEV_DL_LINK_QUALITY_METRIC_CHANGED);
+ CASE_STRINGIFY(KEV_DL_NODE_PRESENCE);
+ CASE_STRINGIFY(KEV_DL_NODE_ABSENCE);
+ CASE_STRINGIFY(KEV_DL_MASTER_ELECTED);
+ CASE_STRINGIFY(KEV_DL_ISSUES);
+ CASE_STRINGIFY(KEV_DL_IFDELEGATE_CHANGED);
+ default:
+ break;
+ }
+ return ("");
+}
+
+/*
+ * Mirror the arguments of ifnet_get_local_ports_extended()
+ * ifindex
+ * protocol
+ * flags
+ */
+static int
+sysctl_get_ports_used SYSCTL_HANDLER_ARGS
+{
+#pragma unused(oidp)
+ int *name = (int *)arg1;
+ int namelen = arg2;
+ int error = 0;
+ int idx;
+ protocol_family_t protocol;
+ u_int32_t flags;
+ ifnet_t ifp = NULL;
+ u_int8_t *bitfield = NULL;
+
+ if (req->newptr) {
+ error = EPERM;
+ goto done;
+ }
+ if (namelen != 3) {
+ error = ENOENT;
+ goto done;
+ }
+
+ if (req->oldptr == USER_ADDR_NULL) {
+ req->oldidx = bitstr_size(65536);
+ goto done;
+ }
+ if (req->oldlen < bitstr_size(65536)) {
+ error = ENOMEM;
+ goto done;
+ }
+
+ idx = name[0];
+ protocol = name[1];
+ flags = name[2];
+
+
+ ifnet_head_lock_shared();
+ if (idx > if_index) {
+ ifnet_head_done();
+ error = ENOENT;
+ goto done;
+ }
+ ifp = ifindex2ifnet[idx];
+ ifnet_head_done();
+
+ bitfield = _MALLOC(bitstr_size(65536), M_TEMP, M_WAITOK);
+ if (bitfield == NULL) {
+ error = ENOMEM;
+ goto done;
+ }
+ error = ifnet_get_local_ports_extended(ifp, protocol, flags, bitfield);
+ if (error != 0) {
+ printf("%s: ifnet_get_local_ports_extended() error %d\n",
+ __func__, error);
+ goto done;
+ }
+ error = SYSCTL_OUT(req, bitfield, bitstr_size(65536));
+done:
+ if (bitfield != NULL)
+ _FREE(bitfield, M_TEMP);
+ return (error);
+}
+
projects / apple / xnu.git / blobdiff