/*
- * Copyright (c) 2000-2017 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2018 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* Version 2.0.
*/
-#define _IP_VHL
+#define _IP_VHL
#include <sys/param.h>
#include <sys/systm.h>
#include <netkey/key.h>
#endif /* IPSEC */
-#define DBG_LAYER_BEG NETDBG_CODE(DBG_NETIP, 0)
-#define DBG_LAYER_END NETDBG_CODE(DBG_NETIP, 2)
-#define DBG_FNC_IP_INPUT NETDBG_CODE(DBG_NETIP, (2 << 8))
+#define DBG_LAYER_BEG NETDBG_CODE(DBG_NETIP, 0)
+#define DBG_LAYER_END NETDBG_CODE(DBG_NETIP, 2)
+#define DBG_FNC_IP_INPUT NETDBG_CODE(DBG_NETIP, (2 << 8))
#if IPSEC
extern int ipsec_bypass;
extern lck_mtx_t *sadb_mutex;
-lck_grp_t *sadb_stat_mutex_grp;
-lck_grp_attr_t *sadb_stat_mutex_grp_attr;
-lck_attr_t *sadb_stat_mutex_attr;
+lck_grp_t *sadb_stat_mutex_grp;
+lck_grp_attr_t *sadb_stat_mutex_grp_attr;
+lck_attr_t *sadb_stat_mutex_attr;
decl_lck_mtx_data(, sadb_stat_mutex_data);
-lck_mtx_t *sadb_stat_mutex = &sadb_stat_mutex_data;
+lck_mtx_t *sadb_stat_mutex = &sadb_stat_mutex_data;
#endif /* IPSEC */
MBUFQ_HEAD(fq_head);
-static int frag_timeout_run; /* frag timer is scheduled to run */
+static int frag_timeout_run; /* frag timer is scheduled to run */
static void frag_timeout(void *);
static void frag_sched_timeout(void);
u_int32_t, int, int, struct ip_fw_in_args *, int);
decl_lck_mtx_data(static, ipqlock);
-static lck_attr_t *ipqlock_attr;
-static lck_grp_t *ipqlock_grp;
-static lck_grp_attr_t *ipqlock_grp_attr;
+static lck_attr_t *ipqlock_attr;
+static lck_grp_t *ipqlock_grp;
+static lck_grp_attr_t *ipqlock_grp_attr;
/* Packet reassembly stuff */
-#define IPREASS_NHASH_LOG2 6
-#define IPREASS_NHASH (1 << IPREASS_NHASH_LOG2)
-#define IPREASS_HMASK (IPREASS_NHASH - 1)
-#define IPREASS_HASH(x, y) \
+#define IPREASS_NHASH_LOG2 6
+#define IPREASS_NHASH (1 << IPREASS_NHASH_LOG2)
+#define IPREASS_HMASK (IPREASS_NHASH - 1)
+#define IPREASS_HASH(x, y) \
(((((x) & 0xF) | ((((x) >> 8) & 0xF) << 4)) ^ (y)) & IPREASS_HMASK)
/* IP fragment reassembly queues (protected by ipqlock) */
static TAILQ_HEAD(ipqhead, ipq) ipq[IPREASS_NHASH]; /* ip reassembly queues */
-static int maxnipq; /* max packets in reass queues */
-static u_int32_t maxfragsperpacket; /* max frags/packet in reass queues */
-static u_int32_t nipq; /* # of packets in reass queues */
-static u_int32_t ipq_limit; /* ipq allocation limit */
-static u_int32_t ipq_count; /* current # of allocated ipq's */
+static int maxnipq; /* max packets in reass queues */
+static u_int32_t maxfragsperpacket; /* max frags/packet in reass queues */
+static u_int32_t nipq; /* # of packets in reass queues */
+static u_int32_t ipq_limit; /* ipq allocation limit */
+static u_int32_t ipq_count; /* current # of allocated ipq's */
static int sysctl_ipforwarding SYSCTL_HANDLER_ARGS;
static int sysctl_maxnipq SYSCTL_HANDLER_ARGS;
int ipforwarding = 0;
SYSCTL_PROC(_net_inet_ip, IPCTL_FORWARDING, forwarding,
- CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ipforwarding, 0,
- sysctl_ipforwarding, "I", "Enable IP forwarding between interfaces");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &ipforwarding, 0,
+ sysctl_ipforwarding, "I", "Enable IP forwarding between interfaces");
static int ipsendredirects = 1; /* XXX */
SYSCTL_INT(_net_inet_ip, IPCTL_SENDREDIRECTS, redirect,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ipsendredirects, 0,
- "Enable sending IP redirects");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ipsendredirects, 0,
+ "Enable sending IP redirects");
int ip_defttl = IPDEFTTL;
SYSCTL_INT(_net_inet_ip, IPCTL_DEFTTL, ttl, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_defttl, 0, "Maximum TTL on IP packets");
+ &ip_defttl, 0, "Maximum TTL on IP packets");
static int ip_dosourceroute = 0;
SYSCTL_INT(_net_inet_ip, IPCTL_SOURCEROUTE, sourceroute,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ip_dosourceroute, 0,
- "Enable forwarding source routed IP packets");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ip_dosourceroute, 0,
+ "Enable forwarding source routed IP packets");
static int ip_acceptsourceroute = 0;
SYSCTL_INT(_net_inet_ip, IPCTL_ACCEPTSOURCEROUTE, accept_sourceroute,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ip_acceptsourceroute, 0,
- "Enable accepting source routed IP packets");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ip_acceptsourceroute, 0,
+ "Enable accepting source routed IP packets");
static int ip_sendsourcequench = 0;
SYSCTL_INT(_net_inet_ip, OID_AUTO, sendsourcequench,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ip_sendsourcequench, 0,
- "Enable the transmission of source quench packets");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ip_sendsourcequench, 0,
+ "Enable the transmission of source quench packets");
SYSCTL_PROC(_net_inet_ip, OID_AUTO, maxfragpackets,
- CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &maxnipq, 0, sysctl_maxnipq,
- "I", "Maximum number of IPv4 fragment reassembly queue entries");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &maxnipq, 0, sysctl_maxnipq,
+ "I", "Maximum number of IPv4 fragment reassembly queue entries");
SYSCTL_UINT(_net_inet_ip, OID_AUTO, fragpackets, CTLFLAG_RD | CTLFLAG_LOCKED,
- &nipq, 0, "Current number of IPv4 fragment reassembly queue entries");
+ &nipq, 0, "Current number of IPv4 fragment reassembly queue entries");
SYSCTL_PROC(_net_inet_ip, OID_AUTO, maxfragsperpacket,
- CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &maxfragsperpacket, 0,
- sysctl_maxfragsperpacket, "I",
- "Maximum number of IPv4 fragments allowed per packet");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED, &maxfragsperpacket, 0,
+ sysctl_maxfragsperpacket, "I",
+ "Maximum number of IPv4 fragments allowed per packet");
static uint32_t ip_adj_clear_hwcksum = 0;
SYSCTL_UINT(_net_inet_ip, OID_AUTO, adj_clear_hwcksum,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ip_adj_clear_hwcksum, 0,
- "Invalidate hwcksum info when adjusting length");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ip_adj_clear_hwcksum, 0,
+ "Invalidate hwcksum info when adjusting length");
static uint32_t ip_adj_partial_sum = 1;
SYSCTL_UINT(_net_inet_ip, OID_AUTO, adj_partial_sum,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ip_adj_partial_sum, 0,
- "Perform partial sum adjustment of trailing bytes at IP layer");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ip_adj_partial_sum, 0,
+ "Perform partial sum adjustment of trailing bytes at IP layer");
/*
* XXX - Setting ip_checkinterface mostly implements the receive side of
*/
static int ip_checkinterface = 0;
SYSCTL_INT(_net_inet_ip, OID_AUTO, check_interface, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_checkinterface, 0, "Verify packet arrives on correct interface");
+ &ip_checkinterface, 0, "Verify packet arrives on correct interface");
static int ip_chaining = 1;
SYSCTL_INT(_net_inet_ip, OID_AUTO, rx_chaining, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_chaining, 1, "Do receive side ip address based chaining");
+ &ip_chaining, 1, "Do receive side ip address based chaining");
static int ip_chainsz = 6;
SYSCTL_INT(_net_inet_ip, OID_AUTO, rx_chainsz, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_chainsz, 1, "IP receive side max chaining");
+ &ip_chainsz, 1, "IP receive side max chaining");
#if (DEBUG || DEVELOPMENT)
static int ip_input_measure = 0;
SYSCTL_PROC(_net_inet_ip, OID_AUTO, input_perf,
- CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_input_measure, 0, sysctl_reset_ip_input_stats, "I", "Do time measurement");
+ CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_LOCKED,
+ &ip_input_measure, 0, sysctl_reset_ip_input_stats, "I", "Do time measurement");
static uint64_t ip_input_measure_bins = 0;
SYSCTL_PROC(_net_inet_ip, OID_AUTO, input_perf_bins,
- CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, &ip_input_measure_bins, 0,
- sysctl_ip_input_measure_bins, "I",
- "bins for chaining performance data histogram");
+ CTLTYPE_QUAD | CTLFLAG_RW | CTLFLAG_LOCKED, &ip_input_measure_bins, 0,
+ sysctl_ip_input_measure_bins, "I",
+ "bins for chaining performance data histogram");
static net_perf_t net_perf;
SYSCTL_PROC(_net_inet_ip, OID_AUTO, input_perf_data,
- CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
- 0, 0, sysctl_ip_input_getperf, "S,net_perf",
- "IP input performance data (struct net_perf, net/net_perf.h)");
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, sysctl_ip_input_getperf, "S,net_perf",
+ "IP input performance data (struct net_perf, net/net_perf.h)");
#endif /* (DEBUG || DEVELOPMENT) */
#if DIAGNOSTIC
struct protosw *ip_protox[IPPROTO_MAX];
-static lck_grp_attr_t *in_ifaddr_rwlock_grp_attr;
-static lck_grp_t *in_ifaddr_rwlock_grp;
-static lck_attr_t *in_ifaddr_rwlock_attr;
+static lck_grp_attr_t *in_ifaddr_rwlock_grp_attr;
+static lck_grp_t *in_ifaddr_rwlock_grp;
+static lck_attr_t *in_ifaddr_rwlock_attr;
decl_lck_rw_data(, in_ifaddr_rwlock_data);
-lck_rw_t *in_ifaddr_rwlock = &in_ifaddr_rwlock_data;
+lck_rw_t *in_ifaddr_rwlock = &in_ifaddr_rwlock_data;
/* Protected by in_ifaddr_rwlock */
-struct in_ifaddrhead in_ifaddrhead; /* first inet address */
-struct in_ifaddrhashhead *in_ifaddrhashtbl; /* inet addr hash table */
+struct in_ifaddrhead in_ifaddrhead; /* first inet address */
+struct in_ifaddrhashhead *in_ifaddrhashtbl; /* inet addr hash table */
-#define INADDR_NHASH 61
-static u_int32_t inaddr_nhash; /* hash table size */
-static u_int32_t inaddr_hashp; /* next largest prime */
+#define INADDR_NHASH 61
+static u_int32_t inaddr_nhash; /* hash table size */
+static u_int32_t inaddr_hashp; /* next largest prime */
static int ip_getstat SYSCTL_HANDLER_ARGS;
struct ipstat ipstat;
SYSCTL_PROC(_net_inet_ip, IPCTL_STATS, stats,
- CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
- 0, 0, ip_getstat, "S,ipstat",
- "IP statistics (struct ipstat, netinet/ip_var.h)");
+ CTLTYPE_STRUCT | CTLFLAG_RD | CTLFLAG_LOCKED,
+ 0, 0, ip_getstat, "S,ipstat",
+ "IP statistics (struct ipstat, netinet/ip_var.h)");
#if IPCTL_DEFMTU
SYSCTL_INT(_net_inet_ip, IPCTL_DEFMTU, mtu, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_mtu, 0, "Default MTU");
+ &ip_mtu, 0, "Default MTU");
#endif /* IPCTL_DEFMTU */
#if IPSTEALTH
-static int ipstealth = 0;
+static int ipstealth = 0;
SYSCTL_INT(_net_inet_ip, OID_AUTO, stealth, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ipstealth, 0, "");
+ &ipstealth, 0, "");
#endif /* IPSTEALTH */
/* Firewall hooks */
#endif /* DUMMYNET */
SYSCTL_NODE(_net_inet_ip, OID_AUTO, linklocal,
- CTLFLAG_RW | CTLFLAG_LOCKED, 0, "link local");
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "link local");
struct ip_linklocal_stat ip_linklocal_stat;
SYSCTL_STRUCT(_net_inet_ip_linklocal, OID_AUTO, stat,
- CTLFLAG_RD | CTLFLAG_LOCKED, &ip_linklocal_stat, ip_linklocal_stat,
- "Number of link local packets with TTL less than 255");
+ CTLFLAG_RD | CTLFLAG_LOCKED, &ip_linklocal_stat, ip_linklocal_stat,
+ "Number of link local packets with TTL less than 255");
SYSCTL_NODE(_net_inet_ip_linklocal, OID_AUTO, in,
- CTLFLAG_RW | CTLFLAG_LOCKED, 0, "link local input");
+ CTLFLAG_RW | CTLFLAG_LOCKED, 0, "link local input");
int ip_linklocal_in_allowbadttl = 1;
SYSCTL_INT(_net_inet_ip_linklocal_in, OID_AUTO, allowbadttl,
- CTLFLAG_RW | CTLFLAG_LOCKED, &ip_linklocal_in_allowbadttl, 0,
- "Allow incoming link local packets with TTL less than 255");
+ CTLFLAG_RW | CTLFLAG_LOCKED, &ip_linklocal_in_allowbadttl, 0,
+ "Allow incoming link local packets with TTL less than 255");
/*
* maintenance when the remote end is on a network that is not known
* to us.
*/
-static int ip_nhops = 0;
-static struct ip_srcrt {
- struct in_addr dst; /* final destination */
- char nop; /* one NOP to align */
- char srcopt[IPOPT_OFFSET + 1]; /* OPTVAL, OLEN and OFFSET */
- struct in_addr route[MAX_IPOPTLEN / sizeof (struct in_addr)];
+static int ip_nhops = 0;
+static struct ip_srcrt {
+ struct in_addr dst; /* final destination */
+ char nop; /* one NOP to align */
+ char srcopt[IPOPT_OFFSET + 1]; /* OPTVAL, OLEN and OFFSET */
+ struct in_addr route[MAX_IPOPTLEN / sizeof(struct in_addr)];
} ip_srcrt;
static void in_ifaddrhashtbl_init(void);
int ip_use_randomid = 1;
SYSCTL_INT(_net_inet_ip, OID_AUTO, random_id, CTLFLAG_RW | CTLFLAG_LOCKED,
- &ip_use_randomid, 0, "Randomize IP packets IDs");
+ &ip_use_randomid, 0, "Randomize IP packets IDs");
/*
* On platforms which require strict alignment (currently for anything but
* it's needed later on.
*/
#if defined(__i386__) || defined(__x86_64__)
-#define IP_HDR_ALIGNMENT_FIXUP(_m, _ifp, _action) do { } while (0)
+#define IP_HDR_ALIGNMENT_FIXUP(_m, _ifp, _action) do { } while (0)
#else /* !__i386__ && !__x86_64__ */
-#define IP_HDR_ALIGNMENT_FIXUP(_m, _ifp, _action) do { \
- if (!IP_HDR_ALIGNED_P(mtod(_m, caddr_t))) { \
- struct mbuf *_n; \
- struct ifnet *__ifp = (_ifp); \
- atomic_add_64(&(__ifp)->if_alignerrs, 1); \
- if (((_m)->m_flags & M_PKTHDR) && \
- (_m)->m_pkthdr.pkt_hdr != NULL) \
- (_m)->m_pkthdr.pkt_hdr = NULL; \
- _n = m_defrag_offset(_m, max_linkhdr, M_NOWAIT); \
- if (_n == NULL) { \
- atomic_add_32(&ipstat.ips_toosmall, 1); \
- m_freem(_m); \
- (_m) = NULL; \
- _action; \
- } else { \
- VERIFY(_n != (_m)); \
- (_m) = _n; \
- } \
- } \
+#define IP_HDR_ALIGNMENT_FIXUP(_m, _ifp, _action) do { \
+ if (!IP_HDR_ALIGNED_P(mtod(_m, caddr_t))) { \
+ struct mbuf *_n; \
+ struct ifnet *__ifp = (_ifp); \
+ atomic_add_64(&(__ifp)->if_alignerrs, 1); \
+ if (((_m)->m_flags & M_PKTHDR) && \
+ (_m)->m_pkthdr.pkt_hdr != NULL) \
+ (_m)->m_pkthdr.pkt_hdr = NULL; \
+ _n = m_defrag_offset(_m, max_linkhdr, M_NOWAIT); \
+ if (_n == NULL) { \
+ atomic_add_32(&ipstat.ips_toosmall, 1); \
+ m_freem(_m); \
+ (_m) = NULL; \
+ _action; \
+ } else { \
+ VERIFY(_n != (_m)); \
+ (_m) = _n; \
+ } \
+ } \
} while (0)
#endif /* !__i386__ && !__x86_64__ */
sin->sin_family = AF_INET;
sin->sin_addr.s_addr = htonl(INADDR_LOOPBACK);
error = in_control(NULL, SIOCSIFADDR, (caddr_t)&ifr, lo_ifp, kernproc);
- if (error)
+ if (error) {
printf("%s: failed to initialise lo0's address, error=%d\n",
__func__, error);
+ }
}
/*
int i;
domain_proto_mtx_lock_assert_held();
- VERIFY((pp->pr_flags & (PR_INITIALIZED|PR_ATTACHED)) == PR_ATTACHED);
+ VERIFY((pp->pr_flags & (PR_INITIALIZED | PR_ATTACHED)) == PR_ATTACHED);
/* ipq_alloc() uses mbufs for IP fragment queue structures */
- _CASSERT(sizeof (struct ipq) <= _MLEN);
+ _CASSERT(sizeof(struct ipq) <= _MLEN);
/*
* Some ioctls (e.g. SIOCAIFADDR) use ifaliasreq struct, which is
* interchangeable with in_aliasreq; they must have the same size.
*/
- _CASSERT(sizeof (struct ifaliasreq) == sizeof (struct in_aliasreq));
+ _CASSERT(sizeof(struct ifaliasreq) == sizeof(struct in_aliasreq));
- if (ip_initialized)
+ if (ip_initialized) {
return;
+ }
ip_initialized = 1;
in_ifaddr_init();
}
/* Initialize the entire ip_protox[] array to IPPROTO_RAW. */
- for (i = 0; i < IPPROTO_MAX; i++)
+ for (i = 0; i < IPPROTO_MAX; i++) {
ip_protox[i] = pr;
+ }
/*
* Cycle through IP protocols and put them into the appropriate place
* in ip_protox[], skipping protocols IPPROTO_{IP,RAW}.
VERIFY(pr->pr_domain == dp);
if (pr->pr_protocol != 0 && pr->pr_protocol != IPPROTO_RAW) {
/* Be careful to only index valid IP protocols. */
- if (pr->pr_protocol < IPPROTO_MAX)
+ if (pr->pr_protocol < IPPROTO_MAX) {
ip_protox[pr->pr_protocol] = pr;
+ }
}
}
lck_mtx_lock(&ipqlock);
/* Initialize IP reassembly queue. */
- for (i = 0; i < IPREASS_NHASH; i++)
+ for (i = 0; i < IPREASS_NHASH; i++) {
TAILQ_INIT(&ipq[i]);
+ }
maxnipq = nmbclusters / 32;
maxfragsperpacket = 128; /* enough for 64k in 512 byte fragments */
{
int i, k, p;
- if (in_ifaddrhashtbl != NULL)
+ if (in_ifaddrhashtbl != NULL) {
return;
+ }
PE_parse_boot_argn("inaddr_nhash", &inaddr_nhash,
- sizeof (inaddr_nhash));
- if (inaddr_nhash == 0)
+ sizeof(inaddr_nhash));
+ if (inaddr_nhash == 0) {
inaddr_nhash = INADDR_NHASH;
+ }
MALLOC(in_ifaddrhashtbl, struct in_ifaddrhashhead *,
- inaddr_nhash * sizeof (*in_ifaddrhashtbl),
+ inaddr_nhash * sizeof(*in_ifaddrhashtbl),
M_IFADDR, M_WAITOK | M_ZERO);
- if (in_ifaddrhashtbl == NULL)
+ if (in_ifaddrhashtbl == NULL) {
panic("in_ifaddrhashtbl_init allocation failed");
+ }
/*
* Generate the next largest prime greater than inaddr_nhash.
for (;;) {
p = 1;
for (i = 3; i * i <= k; i += 2) {
- if (k % i == 0)
+ if (k % i == 0) {
p = 0;
+ }
}
- if (p == 1)
+ if (p == 1) {
break;
+ }
k += 2;
}
inaddr_hashp = k;
* the hash size, as documented in "Introduction to Algorithms"
* (Cormen, Leiserson, Rivest).
*/
- if (inaddr_nhash > 1)
- return ((key * inaddr_hashp) % inaddr_nhash);
- else
- return (0);
+ if (inaddr_nhash > 1) {
+ return (key * inaddr_hashp) % inaddr_nhash;
+ } else {
+ return 0;
+ }
}
void
{
struct ipfilter *filter;
int seen = (inject_ipfref == NULL);
- int changed_header = 0;
+ int changed_header = 0;
struct ip *ip;
void (*pr_input)(struct mbuf *, int len);
ipf_ref();
TAILQ_FOREACH(filter, &ipv4_filters, ipf_link) {
if (seen == 0) {
- if ((struct ipfilter *)inject_ipfref == filter)
+ if ((struct ipfilter *)inject_ipfref == filter) {
seen = 1;
+ }
} else if (filter->ipf_filter.ipf_input) {
errno_t result;
m->m_pkthdr.rcvif, ipf_unref());
/* ipf_unref() already called */
- if (m == NULL)
+ if (m == NULL) {
return;
+ }
changed_header = 1;
ip = mtod(m, struct ip *);
ip->ip_sum = ip_cksum_hdr_in(m, hlen);
}
result = filter->ipf_filter.ipf_input(
- filter->ipf_filter.cookie, (mbuf_t *)&m,
- hlen, proto);
+ filter->ipf_filter.cookie, (mbuf_t *)&m,
+ hlen, proto);
if (result == EJUSTRETURN) {
ipf_unref();
return;
}
/* Perform IP header alignment fixup (post-filters), if needed */
- IP_HDR_ALIGNMENT_FIXUP(m, m->m_pkthdr.rcvif, return);
+ IP_HDR_ALIGNMENT_FIXUP(m, m->m_pkthdr.rcvif, return );
/*
* If there isn't a specific lock for the protocol
}
struct pktchain_elm {
- struct mbuf *pkte_head;
- struct mbuf *pkte_tail;
- struct in_addr pkte_saddr;
- struct in_addr pkte_daddr;
- uint16_t pkte_npkts;
- uint16_t pkte_proto;
- uint32_t pkte_nbytes;
+ struct mbuf *pkte_head;
+ struct mbuf *pkte_tail;
+ struct in_addr pkte_saddr;
+ struct in_addr pkte_daddr;
+ uint16_t pkte_npkts;
+ uint16_t pkte_proto;
+ uint32_t pkte_nbytes;
};
typedef struct pktchain_elm pktchain_elm_t;
/* Store upto PKTTBL_SZ unique flows on the stack */
-#define PKTTBL_SZ 7
+#define PKTTBL_SZ 7
static struct mbuf *
ip_chain_insert(struct mbuf *packet, pktchain_elm_t *tbl)
{
- struct ip* ip;
- int pkttbl_idx = 0;
+ struct ip* ip;
+ int pkttbl_idx = 0;
ip = mtod(packet, struct ip*);
(ip->ip_src.s_addr == tbl[pkttbl_idx].pkte_saddr.s_addr) &&
(ip->ip_p == tbl[pkttbl_idx].pkte_proto)) {
} else {
- return (packet);
+ return packet;
}
}
- if (tbl[pkttbl_idx].pkte_tail != NULL)
+ if (tbl[pkttbl_idx].pkte_tail != NULL) {
mbuf_setnextpkt(tbl[pkttbl_idx].pkte_tail, packet);
+ }
tbl[pkttbl_idx].pkte_tail = packet;
tbl[pkttbl_idx].pkte_npkts += 1;
tbl[pkttbl_idx].pkte_nbytes += packet->m_pkthdr.len;
- return (NULL);
+ return NULL;
}
/* args is a dummy variable here for backward compatibility */
ip_input_second_pass(m, m->m_pkthdr.rcvif, 0,
tbl[i].pkte_npkts, tbl[i].pkte_nbytes, args, 0);
- if (tbl[i].pkte_npkts > 2)
+ if (tbl[i].pkte_npkts > 2) {
ipstat.ips_rxc_chainsz_gt2++;
- if (tbl[i].pkte_npkts > 4)
+ }
+ if (tbl[i].pkte_npkts > 4) {
ipstat.ips_rxc_chainsz_gt4++;
+ }
#if (DEBUG || DEVELOPMENT)
- if (ip_input_measure)
+ if (ip_input_measure) {
net_perf_histogram(&net_perf, tbl[i].pkte_npkts);
+ }
#endif /* (DEBUG || DEVELOPMENT) */
tbl[i].pkte_head = tbl[i].pkte_tail = NULL;
tbl[i].pkte_npkts = 0;
ip = mtod(tmp_mbuf, struct ip *);
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
- while(tmp_mbuf) {
+ while (tmp_mbuf) {
nxt_mbuf = mbuf_nextpkt(tmp_mbuf);
mbuf_setnextpkt(tmp_mbuf, NULL);
- if ((sw_lro) && (ip->ip_p == IPPROTO_TCP))
+ if ((sw_lro) && (ip->ip_p == IPPROTO_TCP)) {
tmp_mbuf = tcp_lro(tmp_mbuf, hlen);
- if (tmp_mbuf)
+ }
+ if (tmp_mbuf) {
ip_proto_dispatch_in(tmp_mbuf, hlen, ip->ip_p, 0);
+ }
tmp_mbuf = nxt_mbuf;
if (tmp_mbuf) {
ip = mtod(tmp_mbuf, struct ip *);
* prepended extraneous bytes (else it will do both.)
*/
if (ip_adj_partial_sum &&
- (m->m_pkthdr.csum_flags & (CSUM_DATA_VALID|CSUM_PARTIAL)) ==
- (CSUM_DATA_VALID|CSUM_PARTIAL)) {
+ (m->m_pkthdr.csum_flags & (CSUM_DATA_VALID | CSUM_PARTIAL)) ==
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) {
m->m_pkthdr.csum_rx_val = m_adj_sum16(m,
m->m_pkthdr.csum_rx_start, m->m_pkthdr.csum_rx_start,
(ip->ip_len - m->m_pkthdr.csum_rx_start),
m->m_pkthdr.csum_rx_val);
} else if ((m->m_pkthdr.csum_flags &
- (CSUM_DATA_VALID|CSUM_PARTIAL)) ==
- (CSUM_DATA_VALID|CSUM_PARTIAL)) {
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) ==
+ (CSUM_DATA_VALID | CSUM_PARTIAL)) {
/*
* If packet has partial checksum info and we decided not
* to subtract the partial sum of postpended extraneous
ip_input_first_pass(struct mbuf *m, u_int32_t *div_info,
struct ip_fw_in_args *args, int *ours, struct mbuf **modm)
{
- struct ip *ip;
- struct ifnet *inifp;
- unsigned int hlen;
- int retval = IPINPUT_DOCHAIN;
- int len = 0;
- struct in_addr src_ip;
+ struct ip *ip;
+ struct ifnet *inifp;
+ unsigned int hlen;
+ int retval = IPINPUT_DOCHAIN;
+ int len = 0;
+ struct in_addr src_ip;
#if IPFIREWALL
- int i;
+ int i;
#endif
#if IPFIREWALL || DUMMYNET
- struct m_tag *copy;
- struct m_tag *p;
- boolean_t delete = FALSE;
- struct ip_fw_args args1;
- boolean_t init = FALSE;
+ struct m_tag *copy;
+ struct m_tag *p;
+ boolean_t delete = FALSE;
+ struct ip_fw_args args1;
+ boolean_t init = FALSE;
#endif
ipfilter_t inject_filter_ref = NULL;
/*
* Don't bother searching for tag(s) if there's none.
*/
- if (SLIST_EMPTY(&m->m_pkthdr.tags))
+ if (SLIST_EMPTY(&m->m_pkthdr.tags)) {
goto ipfw_tags_done;
+ }
/* Grab info from mtags prepended to the chain */
p = m_tag_first(m);
if (p->m_tag_type == KERNEL_TAG_TYPE_DUMMYNET) {
struct dn_pkt_tag *dn_tag;
- dn_tag = (struct dn_pkt_tag *)(p+1);
+ dn_tag = (struct dn_pkt_tag *)(p + 1);
args->fwai_ipfw_rule = dn_tag->dn_ipfw_rule;
args->fwai_pf_rule = dn_tag->dn_pf_rule;
delete = TRUE;
if (p->m_tag_type == KERNEL_TAG_TYPE_DIVERT) {
struct divert_tag *div_tag;
- div_tag = (struct divert_tag *)(p+1);
+ div_tag = (struct divert_tag *)(p + 1);
args->fwai_divert_rule = div_tag->cookie;
delete = TRUE;
}
if (p->m_tag_type == KERNEL_TAG_TYPE_IPFORWARD) {
struct ip_fwd_tag *ipfwd_tag;
- ipfwd_tag = (struct ip_fwd_tag *)(p+1);
+ ipfwd_tag = (struct ip_fwd_tag *)(p + 1);
args->fwai_next_hop = ipfwd_tag->next_hop;
delete = TRUE;
}
copy = p;
p = m_tag_next(m, p);
m_tag_delete(m, copy);
- } else {
+ } else {
p = m_tag_next(m, p);
}
} else {
}
#if DIAGNOSTIC
- if (m == NULL || !(m->m_flags & M_PKTHDR))
+ if (m == NULL || !(m->m_flags & M_PKTHDR)) {
panic("ip_input no HDR");
+ }
#endif
#if DUMMYNET
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
inject_filter_ref = ipf_get_inject_filter(m);
#if IPFIREWALL
- if (args->fwai_ipfw_rule)
+ if (args->fwai_ipfw_rule) {
goto iphack;
+ }
#endif /* IPFIREWALL */
- if (args->fwai_pf_rule)
+ if (args->fwai_pf_rule) {
goto check_with_pf;
+ }
}
#endif /* DUMMYNET */
ipfw_tags_done:
/*
* No need to process packet twice if we've already seen it.
*/
- if (!SLIST_EMPTY(&m->m_pkthdr.tags))
+ if (!SLIST_EMPTY(&m->m_pkthdr.tags)) {
inject_filter_ref = ipf_get_inject_filter(m);
+ }
if (inject_filter_ref != NULL) {
ip = mtod(m, struct ip *);
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
ip->ip_len = ntohs(ip->ip_len) - hlen;
ip->ip_off = ntohs(ip->ip_off);
ip_proto_dispatch_in(m, hlen, ip->ip_p, inject_filter_ref);
- return (IPINPUT_DONE);
+ return IPINPUT_DONE;
}
- if (m->m_pkthdr.len < sizeof (struct ip)) {
+ if (m->m_pkthdr.len < sizeof(struct ip)) {
OSAddAtomic(1, &ipstat.ips_total);
OSAddAtomic(1, &ipstat.ips_tooshort);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
- if (m->m_len < sizeof (struct ip) &&
- (m = m_pullup(m, sizeof (struct ip))) == NULL) {
+ if (m->m_len < sizeof(struct ip) &&
+ (m = m_pullup(m, sizeof(struct ip))) == NULL) {
OSAddAtomic(1, &ipstat.ips_total);
OSAddAtomic(1, &ipstat.ips_toosmall);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
ip = mtod(m, struct ip *);
OSAddAtomic(1, &ipstat.ips_badvers);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
- if (hlen < sizeof (struct ip)) {
+ if (hlen < sizeof(struct ip)) {
OSAddAtomic(1, &ipstat.ips_total);
OSAddAtomic(1, &ipstat.ips_badhlen);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
if (hlen > m->m_len) {
OSAddAtomic(1, &ipstat.ips_total);
OSAddAtomic(1, &ipstat.ips_badhlen);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
ip = mtod(m, struct ip *);
*modm = m;
* therefore we don't care so much about PKTF_IFINFO.
*/
if (!(inifp->if_flags & IFF_LOOPBACK) &&
- !(m->m_pkthdr.pkt_flags & PKTF_LOOP)) {
+ !(m->m_pkthdr.pkt_flags & PKTF_LOOP)) {
OSAddAtomic(1, &ipstat.ips_total);
OSAddAtomic(1, &ipstat.ips_badaddr);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
}
OSAddAtomic(1, &ipstat.ips_total);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
}
}
OSAddAtomic(1, &ipstat.ips_total);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
DTRACE_IP6(receive, struct mbuf *, m, struct inpcb *, NULL,
OSAddAtomic(1, &ipstat.ips_badlen);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
#if BYTE_ORDER != BIG_ENDIAN
OSAddAtomic(1, &ipstat.ips_tooshort);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
if (m->m_pkthdr.len > ip->ip_len) {
ip_input_update_nstat(inifp, src_ip, 1, len);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
OSAddAtomic(1, &ipstat.ips_total);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
ip = mtod(m, struct ip *);
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
*/
if (args->fwai_next_hop) {
*ours = 1;
- return (IPINPUT_DONTCHAIN);
+ return IPINPUT_DONTCHAIN;
}
-#endif /* IPFIREWALL_FORWARD */
+#endif /* IPFIREWALL_FORWARD */
ip_input_cpout_args(args, &args1, &init);
args1.fwa_m = m;
m = args1.fwa_m;
if ((i & IP_FW_PORT_DENY_FLAG) || m == NULL) { /* drop */
- if (m)
+ if (m) {
m_freem(m);
+ }
ip_input_update_nstat(inifp, src_ip, 1, len);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
OSAddAtomic(1, &ipstat.ips_total);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
ip = mtod(m, struct ip *); /* just in case m changed */
*modm = m;
#if DUMMYNET
if (DUMMYNET_LOADED && (i & IP_FW_PORT_DYNT_FLAG) != 0) {
/* Send packet to the appropriate pipe */
- ip_dn_io_ptr(m, i&0xffff, DN_TO_IP_IN, &args1,
+ ip_dn_io_ptr(m, i & 0xffff, DN_TO_IP_IN, &args1,
DN_CLIENT_IPFW);
ip_input_update_nstat(inifp, src_ip, 1, len);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
OSAddAtomic(1, &ipstat.ips_total);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
#endif /* DUMMYNET */
#if IPDIVERT
/* Divert or tee packet */
*div_info = i;
*ours = 1;
- return (IPINPUT_DONTCHAIN);
+ return IPINPUT_DONTCHAIN;
}
#endif
#if IPFIREWALL_FORWARD
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
m_freem(m);
OSAddAtomic(1, &ipstat.ips_total);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
#endif /* IPFIREWALL */
#if IPSEC | IPFIREWALL
* error was detected (causing an icmp message
* to be sent and the original packet to be freed).
*/
- ip_nhops = 0; /* for source routed packets */
+ ip_nhops = 0; /* for source routed packets */
#if IPFIREWALL
- if (hlen > sizeof (struct ip) &&
+ if (hlen > sizeof(struct ip) &&
ip_dooptions(m, 0, args->fwai_next_hop)) {
#else /* !IPFIREWALL */
- if (hlen > sizeof (struct ip) && ip_dooptions(m, 0, NULL)) {
+ if (hlen > sizeof(struct ip) && ip_dooptions(m, 0, NULL)) {
#endif /* !IPFIREWALL */
ip_input_update_nstat(inifp, src_ip, 1, len);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
OSAddAtomic(1, &ipstat.ips_total);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
/*
* if it is our fragment or someone else's plus the complexity of
* divert and fw args makes it harder to do chaining.
*/
- if (ip->ip_off & ~(IP_DF | IP_RF))
- return (IPINPUT_DONTCHAIN);
+ if (ip->ip_off & ~(IP_DF | IP_RF)) {
+ return IPINPUT_DONTCHAIN;
+ }
/* Allow DHCP/BootP responses through */
if ((inifp->if_eflags & IFEF_AUTOCONFIGURING) &&
- hlen == sizeof (struct ip) && ip->ip_p == IPPROTO_UDP) {
+ hlen == sizeof(struct ip) && ip->ip_p == IPPROTO_UDP) {
struct udpiphdr *ui;
- if (m->m_len < sizeof (struct udpiphdr) &&
- (m = m_pullup(m, sizeof (struct udpiphdr))) == NULL) {
+ if (m->m_len < sizeof(struct udpiphdr) &&
+ (m = m_pullup(m, sizeof(struct udpiphdr))) == NULL) {
OSAddAtomic(1, &udpstat.udps_hdrops);
KERNEL_DEBUG(DBG_LAYER_END, 0, 0, 0, 0, 0);
OSAddAtomic(1, &ipstat.ips_total);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
}
*modm = m;
ui = mtod(m, struct udpiphdr *);
if (ntohs(ui->ui_dport) == IPPORT_BOOTPC) {
ip_setdstifaddr_info(m, inifp->if_index, NULL);
- return (IPINPUT_DONTCHAIN);
+ return IPINPUT_DONTCHAIN;
}
}
/* Avoid chaining raw sockets as ipsec checks occur later for them */
- if (ip_protox[ip->ip_p]->pr_flags & PR_LASTHDR)
- return (IPINPUT_DONTCHAIN);
+ if (ip_protox[ip->ip_p]->pr_flags & PR_LASTHDR) {
+ return IPINPUT_DONTCHAIN;
+ }
- return (retval);
+ return retval;
#if !defined(__i386__) && !defined(__x86_64__)
bad:
m_freem(m);
- return (IPINPUT_FREED);
+ return IPINPUT_FREED;
#endif
}
ip_input_second_pass(struct mbuf *m, struct ifnet *inifp, u_int32_t div_info,
int npkts_in_chain, int bytes_in_chain, struct ip_fw_in_args *args, int ours)
{
- unsigned int checkif;
- struct mbuf *tmp_mbuf = NULL;
- struct in_ifaddr *ia = NULL;
- struct in_addr pkt_dst;
- unsigned int hlen;
+ unsigned int checkif;
+ struct mbuf *tmp_mbuf = NULL;
+ struct in_ifaddr *ia = NULL;
+ struct in_addr pkt_dst;
+ unsigned int hlen;
#if !IPFIREWALL
#pragma unused (args)
ip_input_update_nstat(inifp, ip->ip_src, npkts_in_chain,
bytes_in_chain);
- if (ours)
+ if (ours) {
goto ours;
+ }
/*
* Check our list of addresses, to see if the packet is for us.
tmp_mbuf = m;
if (TAILQ_EMPTY(&in_ifaddrhead)) {
while (tmp_mbuf) {
- if (!(tmp_mbuf->m_flags & (M_MCAST|M_BCAST))) {
+ if (!(tmp_mbuf->m_flags & (M_MCAST | M_BCAST))) {
ip_setdstifaddr_info(tmp_mbuf, inifp->if_index,
NULL);
}
#if IPFIREWALL
&& (args->fwai_next_hop == NULL);
#else /* !IPFIREWALL */
- ;
+ ;
#endif /* !IPFIREWALL */
/*
#else
m = ip_reass(m);
#endif
- if (m == NULL)
+ if (m == NULL) {
return;
+ }
ip = mtod(m, struct ip *);
/* Get the header length of the reassembled packet */
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
VERIFY(npkts_in_chain == 1);
/* Clone packet if we're doing a 'tee' */
- if (div_info & IP_FW_PORT_TEE_FLAG)
+ if (div_info & IP_FW_PORT_TEE_FLAG) {
clone = m_dup(m, M_DONTWAIT);
+ }
/* Restore packet header fields to original values */
ip->ip_len += hlen;
VERIFY(npkts_in_chain == 1);
fwd_tag = m_tag_create(KERNEL_MODULE_TAG_ID,
- KERNEL_TAG_TYPE_IPFORWARD, sizeof (*ipfwd_tag),
+ KERNEL_TAG_TYPE_IPFORWARD, sizeof(*ipfwd_tag),
M_NOWAIT, m);
- if (fwd_tag == NULL)
+ if (fwd_tag == NULL) {
goto bad;
+ }
- ipfwd_tag = (struct ip_fwd_tag *)(fwd_tag+1);
+ ipfwd_tag = (struct ip_fwd_tag *)(fwd_tag + 1);
ipfwd_tag->next_hop = args->fwai_next_hop;
m_tag_prepend(m, fwd_tag);
ip->ip_src.s_addr, ip->ip_p, ip->ip_off, ip->ip_len);
ip_input_dispatch_chain(m);
-
}
#else /* !IPFIREWALL */
ip_input_dispatch_chain(m);
void
ip_input_process_list(struct mbuf *packet_list)
{
- pktchain_elm_t pktchain_tbl[PKTTBL_SZ];
+ pktchain_elm_t pktchain_tbl[PKTTBL_SZ];
- struct mbuf *packet = NULL;
- struct mbuf *modm = NULL; /* modified mbuf */
- int retval = 0;
- u_int32_t div_info = 0;
- int ours = 0;
+ struct mbuf *packet = NULL;
+ struct mbuf *modm = NULL; /* modified mbuf */
+ int retval = 0;
+ u_int32_t div_info = 0;
+ int ours = 0;
#if (DEBUG || DEVELOPMENT)
struct timeval start_tv;
#endif /* (DEBUG || DEVELOPMENT) */
- int num_pkts = 0;
+ int num_pkts = 0;
int chain = 0;
struct ip_fw_in_args args;
if (ip_chaining == 0) {
struct mbuf *m = packet_list;
#if (DEBUG || DEVELOPMENT)
- if (ip_input_measure)
+ if (ip_input_measure) {
net_perf_start_time(&net_perf, &start_tv);
+ }
#endif /* (DEBUG || DEVELOPMENT) */
while (m) {
num_pkts++;
}
#if (DEBUG || DEVELOPMENT)
- if (ip_input_measure)
+ if (ip_input_measure) {
net_perf_measure_time(&net_perf, &start_tv, num_pkts);
+ }
#endif /* (DEBUG || DEVELOPMENT) */
return;
}
#if (DEBUG || DEVELOPMENT)
- if (ip_input_measure)
+ if (ip_input_measure) {
net_perf_start_time(&net_perf, &start_tv);
+ }
#endif /* (DEBUG || DEVELOPMENT) */
bzero(&pktchain_tbl, sizeof(pktchain_tbl));
num_pkts++;
modm = NULL;
div_info = 0;
- bzero(&args, sizeof (args));
+ bzero(&args, sizeof(args));
retval = ip_input_first_pass(packet, &div_info, &args,
&ours, &modm);
if (retval == IPINPUT_DOCHAIN) {
- if (modm)
+ if (modm) {
packet = modm;
+ }
packet = ip_chain_insert(packet, &pktchain_tbl[0]);
if (packet == NULL) {
ipstat.ips_rxc_chained++;
chain++;
- if (chain > ip_chainsz)
+ if (chain > ip_chainsz) {
break;
+ }
} else {
ipstat.ips_rxc_collisions++;
break;
}
} else if (retval == IPINPUT_DONTCHAIN) {
/* in order to preserve order, exit from chaining */
- if (modm)
+ if (modm) {
packet = modm;
+ }
ipstat.ips_rxc_notchain++;
break;
} else {
}
/* do second pass here for pktchain_tbl */
- if (chain)
+ if (chain) {
ip_input_second_pass_loop_tbl(&pktchain_tbl[0], &args);
+ }
if (packet) {
/*
* ip_input_second_pass_loop_tbl().
*/
#if (DEBUG || DEVELOPMENT)
- if (ip_input_measure)
+ if (ip_input_measure) {
net_perf_histogram(&net_perf, 1);
+ }
#endif /* (DEBUG || DEVELOPMENT) */
ip_input_second_pass(packet, packet->m_pkthdr.rcvif, div_info,
1, packet->m_pkthdr.len, &args, ours);
}
- if (packet_list)
+ if (packet_list) {
goto restart_list_process;
+ }
#if (DEBUG || DEVELOPMENT)
- if (ip_input_measure)
+ if (ip_input_measure) {
net_perf_measure_time(&net_perf, &start_tv, num_pkts);
+ }
#endif /* (DEBUG || DEVELOPMENT) */
}
/*
struct in_addr pkt_dst;
#if IPFIREWALL
int i;
- u_int32_t div_info = 0; /* packet divert/tee info */
+ u_int32_t div_info = 0; /* packet divert/tee info */
#endif
#if IPFIREWALL || DUMMYNET
struct ip_fw_args args;
- struct m_tag *tag;
+ struct m_tag *tag;
#endif
ipfilter_t inject_filter_ref = NULL;
struct ifnet *inifp;
m->m_pkthdr.pkt_flags &= ~PKTF_FORWARDED;
#if IPFIREWALL || DUMMYNET
- bzero(&args, sizeof (struct ip_fw_args));
+ bzero(&args, sizeof(struct ip_fw_args));
/*
* Don't bother searching for tag(s) if there's none.
*/
- if (SLIST_EMPTY(&m->m_pkthdr.tags))
+ if (SLIST_EMPTY(&m->m_pkthdr.tags)) {
goto ipfw_tags_done;
+ }
/* Grab info from mtags prepended to the chain */
#if DUMMYNET
KERNEL_TAG_TYPE_DUMMYNET, NULL)) != NULL) {
struct dn_pkt_tag *dn_tag;
- dn_tag = (struct dn_pkt_tag *)(tag+1);
+ dn_tag = (struct dn_pkt_tag *)(tag + 1);
args.fwa_ipfw_rule = dn_tag->dn_ipfw_rule;
args.fwa_pf_rule = dn_tag->dn_pf_rule;
KERNEL_TAG_TYPE_DIVERT, NULL)) != NULL) {
struct divert_tag *div_tag;
- div_tag = (struct divert_tag *)(tag+1);
+ div_tag = (struct divert_tag *)(tag + 1);
args.fwa_divert_rule = div_tag->cookie;
m_tag_delete(m, tag);
KERNEL_TAG_TYPE_IPFORWARD, NULL)) != NULL) {
struct ip_fwd_tag *ipfwd_tag;
- ipfwd_tag = (struct ip_fwd_tag *)(tag+1);
+ ipfwd_tag = (struct ip_fwd_tag *)(tag + 1);
args.fwa_next_hop = ipfwd_tag->next_hop;
m_tag_delete(m, tag);
}
-#if DIAGNOSTIC
- if (m == NULL || !(m->m_flags & M_PKTHDR))
+#if DIAGNOSTIC
+ if (m == NULL || !(m->m_flags & M_PKTHDR)) {
panic("ip_input no HDR");
+ }
#endif
#if DUMMYNET
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
inject_filter_ref = ipf_get_inject_filter(m);
#if IPFIREWALL
- if (args.fwa_ipfw_rule)
+ if (args.fwa_ipfw_rule) {
goto iphack;
+ }
#endif /* IPFIREWALL */
- if (args.fwa_pf_rule)
+ if (args.fwa_pf_rule) {
goto check_with_pf;
+ }
}
#endif /* DUMMYNET */
ipfw_tags_done:
/*
* No need to process packet twice if we've already seen it.
*/
- if (!SLIST_EMPTY(&m->m_pkthdr.tags))
+ if (!SLIST_EMPTY(&m->m_pkthdr.tags)) {
inject_filter_ref = ipf_get_inject_filter(m);
+ }
if (inject_filter_ref != NULL) {
ip = mtod(m, struct ip *);
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
}
OSAddAtomic(1, &ipstat.ips_total);
- if (m->m_pkthdr.len < sizeof (struct ip))
+ if (m->m_pkthdr.len < sizeof(struct ip)) {
goto tooshort;
+ }
- if (m->m_len < sizeof (struct ip) &&
- (m = m_pullup(m, sizeof (struct ip))) == NULL) {
+ if (m->m_len < sizeof(struct ip) &&
+ (m = m_pullup(m, sizeof(struct ip))) == NULL) {
OSAddAtomic(1, &ipstat.ips_toosmall);
return;
}
}
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
- if (hlen < sizeof (struct ip)) { /* minimum header length */
+ if (hlen < sizeof(struct ip)) { /* minimum header length */
OSAddAtomic(1, &ipstat.ips_badhlen);
goto bad;
}
if (ip->ip_ttl != MAXTTL) {
OSAddAtomic(1, &ip_linklocal_stat.iplls_in_badttl);
/* Silently drop link local traffic with bad TTL */
- if (!ip_linklocal_in_allowbadttl)
+ if (!ip_linklocal_in_allowbadttl) {
goto bad;
+ }
}
}
#endif /* PF */
#if IPSEC
- if (ipsec_bypass == 0 && ipsec_gethist(m, NULL))
+ if (ipsec_bypass == 0 && ipsec_gethist(m, NULL)) {
goto pass;
+ }
#endif
#if IPFIREWALL
* If we've been forwarded from the output side, then
* skip the firewall a second time
*/
- if (args.fwa_next_hop)
+ if (args.fwa_next_hop) {
goto ours;
-#endif /* IPFIREWALL_FORWARD */
+ }
+#endif /* IPFIREWALL_FORWARD */
args.fwa_m = m;
m = args.fwa_m;
if ((i & IP_FW_PORT_DENY_FLAG) || m == NULL) { /* drop */
- if (m)
+ if (m) {
m_freem(m);
+ }
return;
}
ip = mtod(m, struct ip *); /* just in case m changed */
#if DUMMYNET
if (DUMMYNET_LOADED && (i & IP_FW_PORT_DYNT_FLAG) != 0) {
/* Send packet to the appropriate pipe */
- ip_dn_io_ptr(m, i&0xffff, DN_TO_IP_IN, &args,
+ ip_dn_io_ptr(m, i & 0xffff, DN_TO_IP_IN, &args,
DN_CLIENT_IPFW);
return;
}
* error was detected (causing an icmp message
* to be sent and the original packet to be freed).
*/
- ip_nhops = 0; /* for source routed packets */
+ ip_nhops = 0; /* for source routed packets */
#if IPFIREWALL
- if (hlen > sizeof (struct ip) &&
+ if (hlen > sizeof(struct ip) &&
ip_dooptions(m, 0, args.fwa_next_hop)) {
#else /* !IPFIREWALL */
- if (hlen > sizeof (struct ip) && ip_dooptions(m, 0, NULL)) {
+ if (hlen > sizeof(struct ip) && ip_dooptions(m, 0, NULL)) {
#endif /* !IPFIREWALL */
return;
}
* we receive might be for us (and let the upper layers deal
* with it).
*/
- if (TAILQ_EMPTY(&in_ifaddrhead) && !(m->m_flags & (M_MCAST|M_BCAST))) {
+ if (TAILQ_EMPTY(&in_ifaddrhead) && !(m->m_flags & (M_MCAST | M_BCAST))) {
ip_setdstifaddr_info(m, inifp->if_index, NULL);
goto ours;
}
#if IPFIREWALL
&& (args.fwa_next_hop == NULL);
#else /* !IPFIREWALL */
- ;
+ ;
#endif /* !IPFIREWALL */
/*
/* Allow DHCP/BootP responses through */
if ((inifp->if_eflags & IFEF_AUTOCONFIGURING) &&
- hlen == sizeof (struct ip) && ip->ip_p == IPPROTO_UDP) {
+ hlen == sizeof(struct ip) && ip->ip_p == IPPROTO_UDP) {
struct udpiphdr *ui;
- if (m->m_len < sizeof (struct udpiphdr) &&
- (m = m_pullup(m, sizeof (struct udpiphdr))) == NULL) {
+ if (m->m_len < sizeof(struct udpiphdr) &&
+ (m = m_pullup(m, sizeof(struct udpiphdr))) == NULL) {
OSAddAtomic(1, &udpstat.udps_hdrops);
return;
}
#else
m = ip_reass(m);
#endif
- if (m == NULL)
+ if (m == NULL) {
return;
+ }
ip = mtod(m, struct ip *);
/* Get the header length of the reassembled packet */
hlen = IP_VHL_HL(ip->ip_vhl) << 2;
struct mbuf *clone = NULL;
/* Clone packet if we're doing a 'tee' */
- if (div_info & IP_FW_PORT_TEE_FLAG)
+ if (div_info & IP_FW_PORT_TEE_FLAG) {
clone = m_dup(m, M_DONTWAIT);
+ }
/* Restore packet header fields to original values */
ip->ip_len += hlen;
struct ip_fwd_tag *ipfwd_tag;
fwd_tag = m_tag_create(KERNEL_MODULE_TAG_ID,
- KERNEL_TAG_TYPE_IPFORWARD, sizeof (*ipfwd_tag),
+ KERNEL_TAG_TYPE_IPFORWARD, sizeof(*ipfwd_tag),
M_NOWAIT, m);
- if (fwd_tag == NULL)
+ if (fwd_tag == NULL) {
goto bad;
+ }
- ipfwd_tag = (struct ip_fwd_tag *)(fwd_tag+1);
+ ipfwd_tag = (struct ip_fwd_tag *)(fwd_tag + 1);
ipfwd_tag->next_hop = args.fwa_next_hop;
m_tag_prepend(m, fwd_tag);
if ((sw_lro) && (ip->ip_p == IPPROTO_TCP)) {
m = tcp_lro(m, hlen);
- if (m == NULL)
+ if (m == NULL) {
return;
+ }
}
ip_proto_dispatch_in(m, hlen, ip->ip_p, 0);
#else /* !IPFIREWALL */
if ((sw_lro) && (ip->ip_p == IPPROTO_TCP)) {
m = tcp_lro(m, hlen);
- if (m == NULL)
+ if (m == NULL) {
return;
+ }
}
ip_proto_dispatch_in(m, hlen, ip->ip_p, 0);
#endif /* !IPFIREWALL */
/*
* -1 for unlimited allocation.
*/
- if (maxnipq < 0)
+ if (maxnipq < 0) {
ipq_limit = 0;
+ }
/*
* Positive number for specific bound.
*/
- if (maxnipq > 0)
+ if (maxnipq > 0) {
ipq_limit = maxnipq;
+ }
/*
* Zero specifies no further fragment queue allocation -- set the
* bound very low, but rely on implementation elsewhere to actually
* prevent allocation and reclaim current queues.
*/
- if (maxnipq == 0)
+ if (maxnipq == 0) {
ipq_limit = 1;
+ }
/*
* Arm the purge timer if not already and if there's work to do
*/
lck_mtx_lock(&ipqlock);
i = maxnipq;
error = sysctl_handle_int(oidp, &i, 0, req);
- if (error || req->newptr == USER_ADDR_NULL)
+ if (error || req->newptr == USER_ADDR_NULL) {
goto done;
+ }
/* impose bounds */
if (i < -1 || i > (nmbclusters / 4)) {
error = EINVAL;
ipq_updateparams();
done:
lck_mtx_unlock(&ipqlock);
- return (error);
+ return error;
}
static int
lck_mtx_lock(&ipqlock);
i = maxfragsperpacket;
error = sysctl_handle_int(oidp, &i, 0, req);
- if (error || req->newptr == USER_ADDR_NULL)
+ if (error || req->newptr == USER_ADDR_NULL) {
goto done;
+ }
maxfragsperpacket = i;
- ipq_updateparams(); /* see if we need to arm timer */
+ ipq_updateparams(); /* see if we need to arm timer */
done:
lck_mtx_unlock(&ipqlock);
- return (error);
+ return error;
}
/*
uint16_t hash;
struct fq_head dfq;
- MBUFQ_INIT(&dfq); /* for deferred frees */
+ MBUFQ_INIT(&dfq); /* for deferred frees */
/* If maxnipq or maxfragsperpacket is 0, never accept fragments. */
if (maxnipq == 0 || maxfragsperpacket == 0) {
m_freem(m);
if (nipq > 0) {
lck_mtx_lock(&ipqlock);
- frag_sched_timeout(); /* purge stale fragments */
+ frag_sched_timeout(); /* purge stale fragments */
lck_mtx_unlock(&ipqlock);
}
- return (NULL);
+ return NULL;
}
ip = mtod(m, struct ip *);
#if CONFIG_MACF_NET
mac_ipq_label_compare(m, fp) &&
#endif
- ip->ip_p == fp->ipq_p)
+ ip->ip_p == fp->ipq_p) {
goto found;
+ }
}
fp = NULL;
* has already performed its header checksum validation. Also take
* care of any trailing bytes and subtract out their partial sum.
*/
- if (ip->ip_p == IPPROTO_UDP && hlen == sizeof (struct ip) &&
+ if (ip->ip_p == IPPROTO_UDP && hlen == sizeof(struct ip) &&
(m->m_pkthdr.csum_flags &
(CSUM_DATA_VALID | CSUM_PARTIAL | CSUM_PSEUDO_HDR)) ==
(CSUM_DATA_VALID | CSUM_PARTIAL)) {
/* callee folds in sum */
csum = m_adj_sum16(m, start, hlen,
(ip->ip_len - hlen), csum);
- if (hlen > start)
+ if (hlen > start) {
swbytes += (hlen - start);
- else
+ } else {
swbytes += (start - hlen);
+ }
#if BYTE_ORDER != BIG_ENDIAN
if (start < hlen) {
NTOHS(ip->ip_off);
}
csum_flags = m->m_pkthdr.csum_flags;
- if (swbytes != 0)
+ if (swbytes != 0) {
udp_in_cksum_stats(swbytes);
- if (trailer != 0)
+ }
+ if (trailer != 0) {
m_adj(m, -trailer);
+ }
} else {
csum = 0;
csum_flags = 0;
*/
if (fp == NULL) {
fp = ipq_alloc(M_DONTWAIT);
- if (fp == NULL)
+ if (fp == NULL) {
goto dropfrag;
+ }
#if CONFIG_MACF_NET
if (mac_ipq_label_init(fp, M_NOWAIT) != 0) {
ipq_free(fp);
*divinfo = 0;
*divcookie = 0;
#endif /* IPDIVERT */
- m = NULL; /* nothing to return */
+ m = NULL; /* nothing to return */
goto done;
} else {
fp->ipq_nfrags++;
#endif
}
-#define GETIP(m) ((struct ip *)((m)->m_pkthdr.pkt_hdr))
+#define GETIP(m) ((struct ip *)((m)->m_pkthdr.pkt_hdr))
/*
* Handle ECN by comparing this segment with the first one;
ecn = ip->ip_tos & IPTOS_ECN_MASK;
ecn0 = GETIP(fp->ipq_frags)->ip_tos & IPTOS_ECN_MASK;
if (ecn == IPTOS_ECN_CE) {
- if (ecn0 == IPTOS_ECN_NOTECT)
+ if (ecn0 == IPTOS_ECN_NOTECT) {
goto dropfrag;
- if (ecn0 != IPTOS_ECN_CE)
+ }
+ if (ecn0 != IPTOS_ECN_CE) {
GETIP(fp->ipq_frags)->ip_tos |= IPTOS_ECN_CE;
+ }
}
- if (ecn == IPTOS_ECN_NOTECT && ecn0 != IPTOS_ECN_NOTECT)
+ if (ecn == IPTOS_ECN_NOTECT && ecn0 != IPTOS_ECN_NOTECT) {
goto dropfrag;
+ }
/*
* Find a segment which begins after this one does.
*/
- for (p = NULL, q = fp->ipq_frags; q; p = q, q = q->m_nextpkt)
- if (GETIP(q)->ip_off > ip->ip_off)
+ for (p = NULL, q = fp->ipq_frags; q; p = q, q = q->m_nextpkt) {
+ if (GETIP(q)->ip_off > ip->ip_off) {
break;
+ }
+ }
/*
* If there is a preceding segment, it may provide some of
if (p) {
i = GETIP(p)->ip_off + GETIP(p)->ip_len - ip->ip_off;
if (i > 0) {
- if (i >= ip->ip_len)
+ if (i >= ip->ip_len) {
goto dropfrag;
+ }
m_adj(m, i);
fp->ipq_csum_flags = 0;
ip->ip_off += i;
* as that of the existing ones, accumulate checksum. Otherwise,
* invalidate checksum offload info for the entire datagram.
*/
- if (csum_flags != 0 && csum_flags == fp->ipq_csum_flags)
+ if (csum_flags != 0 && csum_flags == fp->ipq_csum_flags) {
fp->ipq_csum += csum;
- else if (fp->ipq_csum_flags != 0)
+ } else if (fp->ipq_csum_flags != 0) {
fp->ipq_csum_flags = 0;
+ }
#if IPDIVERT
/*
ipstat.ips_fragdropped += fp->ipq_nfrags;
frag_freef(head, fp);
}
- m = NULL; /* nothing to return */
+ m = NULL; /* nothing to return */
goto done;
}
next += GETIP(q)->ip_len;
ipstat.ips_fragdropped += fp->ipq_nfrags;
frag_freef(head, fp);
}
- m = NULL; /* nothing to return */
+ m = NULL; /* nothing to return */
goto done;
}
ipstat.ips_toolong++;
ipstat.ips_fragdropped += fp->ipq_nfrags;
frag_freef(head, fp);
- m = NULL; /* nothing to return */
+ m = NULL; /* nothing to return */
goto done;
}
ADDCARRY(csum);
m->m_pkthdr.csum_rx_val = csum;
- m->m_pkthdr.csum_rx_start = sizeof (struct ip);
+ m->m_pkthdr.csum_rx_start = sizeof(struct ip);
m->m_pkthdr.csum_flags = fp->ipq_csum_flags;
} else if ((m->m_pkthdr.rcvif->if_flags & IFF_LOOPBACK) ||
(m->m_pkthdr.pkt_flags & PKTF_LOOP)) {
ip->ip_src = fp->ipq_src;
ip->ip_dst = fp->ipq_dst;
- fp->ipq_frags = NULL; /* return to caller as 'm' */
+ fp->ipq_frags = NULL; /* return to caller as 'm' */
frag_freef(head, fp);
fp = NULL;
m->m_len += (IP_VHL_HL(ip->ip_vhl) << 2);
m->m_data -= (IP_VHL_HL(ip->ip_vhl) << 2);
/* some debugging cruft by sklower, below, will go away soon */
- if (m->m_flags & M_PKTHDR) /* XXX this should be done elsewhere */
+ if (m->m_flags & M_PKTHDR) { /* XXX this should be done elsewhere */
m_fixhdr(m);
+ }
ipstat.ips_reassembled++;
/* arm the purge timer if not already and if there's work to do */
frag_sched_timeout();
lck_mtx_unlock(&ipqlock);
/* perform deferred free (if needed) now that lock is dropped */
- if (!MBUFQ_EMPTY(&dfq))
+ if (!MBUFQ_EMPTY(&dfq)) {
MBUFQ_DRAIN(&dfq);
+ }
VERIFY(MBUFQ_EMPTY(&dfq));
- return (m);
+ return m;
done:
VERIFY(m == NULL);
frag_sched_timeout();
lck_mtx_unlock(&ipqlock);
/* perform deferred free (if needed) */
- if (!MBUFQ_EMPTY(&dfq))
+ if (!MBUFQ_EMPTY(&dfq)) {
MBUFQ_DRAIN(&dfq);
+ }
VERIFY(MBUFQ_EMPTY(&dfq));
- return (NULL);
+ return NULL;
dropfrag:
#if IPDIVERT
*divcookie = 0;
#endif /* IPDIVERT */
ipstat.ips_fragdropped++;
- if (fp != NULL)
+ if (fp != NULL) {
fp->ipq_nfrags--;
+ }
/* arm the purge timer if not already and if there's work to do */
frag_sched_timeout();
lck_mtx_unlock(&ipqlock);
m_freem(m);
/* perform deferred free (if needed) */
- if (!MBUFQ_EMPTY(&dfq))
+ if (!MBUFQ_EMPTY(&dfq)) {
MBUFQ_DRAIN(&dfq);
+ }
VERIFY(MBUFQ_EMPTY(&dfq));
- return (NULL);
+ return NULL;
#undef GETIP
}
lck_mtx_lock(&ipqlock);
for (i = 0; i < IPREASS_NHASH; i++) {
- for (fp = TAILQ_FIRST(&ipq[i]); fp; ) {
+ for (fp = TAILQ_FIRST(&ipq[i]); fp;) {
struct ipq *fpp;
fpp = fp;
* from nipq since the latter represents the elements already
* in the reassembly queues.
*/
- if (ipq_limit > 0 && ipq_count > ipq_limit)
- return (NULL);
+ if (ipq_limit > 0 && ipq_count > ipq_limit) {
+ return NULL;
+ }
t = m_get(how, MT_FTABLE);
if (t != NULL) {
atomic_add_32(&ipq_count, 1);
fp = mtod(t, struct ipq *);
- bzero(fp, sizeof (*fp));
+ bzero(fp, sizeof(*fp));
} else {
fp = NULL;
}
- return (fp);
+ return fp;
}
static void
void
ip_drain(void)
{
- frag_drain(); /* fragments */
- in_rtqdrain(); /* protocol cloned routes */
- in_arpdrain(NULL); /* cloned routes: ARP */
+ frag_drain(); /* fragments */
+ in_rtqdrain(); /* protocol cloned routes */
+ in_arpdrain(NULL); /* cloned routes: ARP */
}
/*
struct in_addr *sin, dst;
u_int32_t ntime;
struct sockaddr_in ipaddr = {
- sizeof (ipaddr), AF_INET, 0, { 0 }, { 0, } };
+ sizeof(ipaddr), AF_INET, 0, { 0 }, { 0, }
+ };
/* Expect 32-bit aligned data pointer on strict-align platforms */
MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
dst = ip->ip_dst;
cp = (u_char *)(ip + 1);
- cnt = (IP_VHL_HL(ip->ip_vhl) << 2) - sizeof (struct ip);
+ cnt = (IP_VHL_HL(ip->ip_vhl) << 2) - sizeof(struct ip);
for (; cnt > 0; cnt -= optlen, cp += optlen) {
opt = cp[IPOPT_OPTVAL];
- if (opt == IPOPT_EOL)
+ if (opt == IPOPT_EOL) {
break;
- if (opt == IPOPT_NOP)
+ }
+ if (opt == IPOPT_NOP) {
optlen = 1;
- else {
- if (cnt < IPOPT_OLEN + sizeof (*cp)) {
+ } else {
+ if (cnt < IPOPT_OLEN + sizeof(*cp)) {
code = &cp[IPOPT_OLEN] - (u_char *)ip;
goto bad;
}
optlen = cp[IPOPT_OLEN];
- if (optlen < IPOPT_OLEN + sizeof (*cp) ||
+ if (optlen < IPOPT_OLEN + sizeof(*cp) ||
optlen > cnt) {
code = &cp[IPOPT_OLEN] - (u_char *)ip;
goto bad;
}
}
switch (opt) {
-
default:
break;
*/
case IPOPT_LSRR:
case IPOPT_SSRR:
- if (optlen < IPOPT_OFFSET + sizeof (*cp)) {
+ if (optlen < IPOPT_OFFSET + sizeof(*cp)) {
code = &cp[IPOPT_OLEN] - (u_char *)ip;
goto bad;
}
code = ICMP_UNREACH_SRCFAIL;
goto bad;
}
- if (!ip_dosourceroute)
+ if (!ip_dosourceroute) {
goto nosourcerouting;
+ }
/*
* Loose routing, and not at next destination
* yet; nothing to do except forward.
IFA_REMREF(&ia->ia_ifa);
ia = NULL;
}
- off--; /* 0 origin */
- if (off > optlen - (int)sizeof (struct in_addr)) {
+ off--; /* 0 origin */
+ if (off > optlen - (int)sizeof(struct in_addr)) {
/*
* End of source route. Should be for us.
*/
- if (!ip_acceptsourceroute)
+ if (!ip_acceptsourceroute) {
goto nosourcerouting;
+ }
save_rte(cp, ip->ip_src);
break;
}
"attempted source route from %s "
"to %s\n",
inet_ntop(AF_INET, &ip->ip_src,
- buf, sizeof (buf)),
+ buf, sizeof(buf)),
inet_ntop(AF_INET, &ip->ip_dst,
- buf2, sizeof (buf2)));
+ buf2, sizeof(buf2)));
type = ICMP_UNREACH;
code = ICMP_UNREACH_SRCFAIL;
goto bad;
*/
OSAddAtomic(1, &ipstat.ips_cantforward);
m_freem(m);
- return (1);
+ return 1;
}
}
* locate outgoing interface
*/
(void) memcpy(&ipaddr.sin_addr, cp + off,
- sizeof (ipaddr.sin_addr));
+ sizeof(ipaddr.sin_addr));
if (opt == IPOPT_SSRR) {
-#define INA struct in_ifaddr *
+#define INA struct in_ifaddr *
if ((ia = (INA)ifa_ifwithdstaddr(
- SA(&ipaddr))) == NULL) {
+ SA(&ipaddr))) == NULL) {
ia = (INA)ifa_ifwithnet(SA(&ipaddr));
}
} else {
ip->ip_dst = ipaddr.sin_addr;
IFA_LOCK(&ia->ia_ifa);
(void) memcpy(cp + off, &(IA_SIN(ia)->sin_addr),
- sizeof (struct in_addr));
+ sizeof(struct in_addr));
IFA_UNLOCK(&ia->ia_ifa);
IFA_REMREF(&ia->ia_ifa);
ia = NULL;
- cp[IPOPT_OFFSET] += sizeof (struct in_addr);
+ cp[IPOPT_OFFSET] += sizeof(struct in_addr);
/*
* Let ip_intr's mcast routing check handle mcast pkts
*/
break;
case IPOPT_RR:
- if (optlen < IPOPT_OFFSET + sizeof (*cp)) {
+ if (optlen < IPOPT_OFFSET + sizeof(*cp)) {
code = &cp[IPOPT_OFFSET] - (u_char *)ip;
goto bad;
}
/*
* If no space remains, ignore.
*/
- off--; /* 0 origin */
- if (off > optlen - (int)sizeof (struct in_addr))
+ off--; /* 0 origin */
+ if (off > optlen - (int)sizeof(struct in_addr)) {
break;
+ }
(void) memcpy(&ipaddr.sin_addr, &ip->ip_dst,
- sizeof (ipaddr.sin_addr));
+ sizeof(ipaddr.sin_addr));
/*
* locate outgoing interface; if we're the destination,
* use the incoming interface (should be same).
}
IFA_LOCK(&ia->ia_ifa);
(void) memcpy(cp + off, &(IA_SIN(ia)->sin_addr),
- sizeof (struct in_addr));
+ sizeof(struct in_addr));
IFA_UNLOCK(&ia->ia_ifa);
IFA_REMREF(&ia->ia_ifa);
ia = NULL;
- cp[IPOPT_OFFSET] += sizeof (struct in_addr);
+ cp[IPOPT_OFFSET] += sizeof(struct in_addr);
break;
case IPOPT_TS:
goto bad;
}
if (ipt->ipt_ptr >
- ipt->ipt_len - (int)sizeof (int32_t)) {
+ ipt->ipt_len - (int)sizeof(int32_t)) {
if (++ipt->ipt_oflw == 0) {
code = (u_char *)&ipt->ipt_ptr -
(u_char *)ip;
}
sin = (struct in_addr *)(void *)(cp + ipt->ipt_ptr - 1);
switch (ipt->ipt_flg) {
-
case IPOPT_TS_TSONLY:
break;
case IPOPT_TS_TSANDADDR:
- if (ipt->ipt_ptr - 1 + sizeof (n_time) +
- sizeof (struct in_addr) > ipt->ipt_len) {
+ if (ipt->ipt_ptr - 1 + sizeof(n_time) +
+ sizeof(struct in_addr) > ipt->ipt_len) {
code = (u_char *)&ipt->ipt_ptr -
(u_char *)ip;
goto bad;
ipaddr.sin_addr = dst;
ia = (INA)ifaof_ifpforaddr(SA(&ipaddr),
m->m_pkthdr.rcvif);
- if (ia == NULL)
+ if (ia == NULL) {
continue;
+ }
IFA_LOCK(&ia->ia_ifa);
(void) memcpy(sin, &IA_SIN(ia)->sin_addr,
- sizeof (struct in_addr));
+ sizeof(struct in_addr));
IFA_UNLOCK(&ia->ia_ifa);
- ipt->ipt_ptr += sizeof (struct in_addr);
+ ipt->ipt_ptr += sizeof(struct in_addr);
IFA_REMREF(&ia->ia_ifa);
ia = NULL;
break;
case IPOPT_TS_PRESPEC:
- if (ipt->ipt_ptr - 1 + sizeof (n_time) +
- sizeof (struct in_addr) > ipt->ipt_len) {
+ if (ipt->ipt_ptr - 1 + sizeof(n_time) +
+ sizeof(struct in_addr) > ipt->ipt_len) {
code = (u_char *)&ipt->ipt_ptr -
(u_char *)ip;
goto bad;
}
(void) memcpy(&ipaddr.sin_addr, sin,
- sizeof (struct in_addr));
+ sizeof(struct in_addr));
if ((ia = (struct in_ifaddr *)ifa_ifwithaddr(
- SA(&ipaddr))) == NULL)
+ SA(&ipaddr))) == NULL) {
continue;
+ }
IFA_REMREF(&ia->ia_ifa);
ia = NULL;
- ipt->ipt_ptr += sizeof (struct in_addr);
+ ipt->ipt_ptr += sizeof(struct in_addr);
break;
default:
}
ntime = iptime();
(void) memcpy(cp + ipt->ipt_ptr - 1, &ntime,
- sizeof (n_time));
- ipt->ipt_ptr += sizeof (n_time);
+ sizeof(n_time));
+ ipt->ipt_ptr += sizeof(n_time);
}
}
if (forward && ipforwarding) {
ip_forward(m, 1, next_hop);
- return (1);
+ return 1;
}
- return (0);
+ return 0;
bad:
icmp_error(m, type, code, 0, 0);
OSAddAtomic(1, &ipstat.ips_badoptions);
- return (1);
+ return 1;
}
/*
found_ra = 0;
cp = (u_char *)(ip + 1);
- cnt = (IP_VHL_HL(ip->ip_vhl) << 2) - sizeof (struct ip);
+ cnt = (IP_VHL_HL(ip->ip_vhl) << 2) - sizeof(struct ip);
for (; cnt > 0; cnt -= optlen, cp += optlen) {
opt = cp[IPOPT_OPTVAL];
- if (opt == IPOPT_EOL)
+ if (opt == IPOPT_EOL) {
break;
- if (opt == IPOPT_NOP)
+ }
+ if (opt == IPOPT_NOP) {
optlen = 1;
- else {
+ } else {
#ifdef DIAGNOSTIC
- if (cnt < IPOPT_OLEN + sizeof (*cp))
+ if (cnt < IPOPT_OLEN + sizeof(*cp)) {
break;
+ }
#endif
optlen = cp[IPOPT_OLEN];
#ifdef DIAGNOSTIC
- if (optlen < IPOPT_OLEN + sizeof (*cp) || optlen > cnt)
+ if (optlen < IPOPT_OLEN + sizeof(*cp) || optlen > cnt) {
break;
+ }
#endif
}
switch (opt) {
case IPOPT_RA:
#ifdef DIAGNOSTIC
- if (optlen != IPOPT_OFFSET + sizeof (uint16_t) ||
- (*((uint16_t *)(void *)&cp[IPOPT_OFFSET]) != 0))
+ if (optlen != IPOPT_OFFSET + sizeof(uint16_t) ||
+ (*((uint16_t *)(void *)&cp[IPOPT_OFFSET]) != 0)) {
break;
- else
+ } else
#endif
- found_ra = 1;
+ found_ra = 1;
break;
default:
break;
}
}
- return (found_ra);
+ return found_ra;
}
/*
struct ifaddr *rt_ifa;
struct route ro;
- bzero(&ro, sizeof (ro));
+ bzero(&ro, sizeof(ro));
sin = SIN(&ro.ro_dst);
sin->sin_family = AF_INET;
- sin->sin_len = sizeof (*sin);
+ sin->sin_len = sizeof(*sin);
sin->sin_addr = dst;
rtalloc_ign(&ro, RTF_PRCLONING);
if (ro.ro_rt == NULL) {
ROUTE_RELEASE(&ro);
- return (NULL);
+ return NULL;
}
RT_LOCK(ro.ro_rt);
- if ((rt_ifa = ro.ro_rt->rt_ifa) != NULL)
+ if ((rt_ifa = ro.ro_rt->rt_ifa) != NULL) {
IFA_ADDREF(rt_ifa);
+ }
RT_UNLOCK(ro.ro_rt);
ROUTE_RELEASE(&ro);
- return ((struct in_ifaddr *)rt_ifa);
+ return (struct in_ifaddr *)rt_ifa;
}
/*
olen = option[IPOPT_OLEN];
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf("save_rte: olen %d\n", olen);
+ }
#endif
- if (olen > sizeof (ip_srcrt) - (1 + sizeof (dst)))
+ if (olen > sizeof(ip_srcrt) - (1 + sizeof(dst))) {
return;
+ }
bcopy(option, ip_srcrt.srcopt, olen);
- ip_nhops = (olen - IPOPT_OFFSET - 1) / sizeof (struct in_addr);
+ ip_nhops = (olen - IPOPT_OFFSET - 1) / sizeof(struct in_addr);
ip_srcrt.dst = dst;
}
struct in_addr *p, *q;
struct mbuf *m;
- if (ip_nhops == 0)
- return (NULL);
+ if (ip_nhops == 0) {
+ return NULL;
+ }
m = m_get(M_DONTWAIT, MT_HEADER);
- if (m == NULL)
- return (NULL);
+ if (m == NULL) {
+ return NULL;
+ }
-#define OPTSIZ (sizeof (ip_srcrt.nop) + sizeof (ip_srcrt.srcopt))
+#define OPTSIZ (sizeof (ip_srcrt.nop) + sizeof (ip_srcrt.srcopt))
/* length is (nhops+1)*sizeof(addr) + sizeof(nop + srcrt header) */
- m->m_len = ip_nhops * sizeof (struct in_addr) +
- sizeof (struct in_addr) + OPTSIZ;
+ m->m_len = ip_nhops * sizeof(struct in_addr) +
+ sizeof(struct in_addr) + OPTSIZ;
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf("ip_srcroute: nhops %d mlen %d", ip_nhops, m->m_len);
+ }
#endif
/*
p = &ip_srcrt.route[ip_nhops - 1];
*(mtod(m, struct in_addr *)) = *p--;
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf(" hops %lx",
(u_int32_t)ntohl(mtod(m, struct in_addr *)->s_addr));
+ }
#endif
/*
*/
ip_srcrt.nop = IPOPT_NOP;
ip_srcrt.srcopt[IPOPT_OFFSET] = IPOPT_MINOFF;
- (void) memcpy(mtod(m, caddr_t) + sizeof (struct in_addr),
+ (void) memcpy(mtod(m, caddr_t) + sizeof(struct in_addr),
&ip_srcrt.nop, OPTSIZ);
q = (struct in_addr *)(void *)(mtod(m, caddr_t) +
- sizeof (struct in_addr) + OPTSIZ);
+ sizeof(struct in_addr) + OPTSIZ);
#undef OPTSIZ
/*
* Record return path as an IP source route,
*/
while (p >= ip_srcrt.route) {
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf(" %lx", (u_int32_t)ntohl(q->s_addr));
+ }
#endif
*q++ = *p--;
}
*/
*q = ip_srcrt.dst;
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf(" %lx\n", (u_int32_t)ntohl(q->s_addr));
+ }
#endif
- return (m);
+ return m;
}
/*
MBUF_STRICT_DATA_ALIGNMENT_CHECK_32(m);
/* use bcopy() since it supports overlapping range */
- olen = (IP_VHL_HL(ip->ip_vhl) << 2) - sizeof (struct ip);
+ olen = (IP_VHL_HL(ip->ip_vhl) << 2) - sizeof(struct ip);
opts = (caddr_t)(ip + 1);
- i = m->m_len - (sizeof (struct ip) + olen);
+ i = m->m_len - (sizeof(struct ip) + olen);
bcopy(opts + olen, opts, (unsigned)i);
m->m_len -= olen;
- if (m->m_flags & M_PKTHDR)
+ if (m->m_flags & M_PKTHDR) {
m->m_pkthdr.len -= olen;
- ip->ip_vhl = IP_MAKE_VHL(IPVERSION, sizeof (struct ip) >> 2);
+ }
+ ip->ip_vhl = IP_MAKE_VHL(IPVERSION, sizeof(struct ip) >> 2);
/*
* We expect ip_{off,len} to be in host order by now, and
* out from ip_len. Temporarily adjust ip_len for checksum
* recalculation, and restore it afterwards.
*/
- ip->ip_len += sizeof (struct ip);
+ ip->ip_len += sizeof(struct ip);
/* recompute checksum now that IP header is smaller */
#if BYTE_ORDER != BIG_ENDIAN
NTOHS(ip->ip_len);
#endif /* BYTE_ORDER != BIG_ENDIAN */
- ip->ip_len -= sizeof (struct ip);
+ ip->ip_len -= sizeof(struct ip);
}
u_char inetctlerrmap[PRC_NCMDS] = {
- 0, 0, 0, 0,
- 0, EMSGSIZE, EHOSTDOWN, EHOSTUNREACH,
- ENETUNREACH, EHOSTUNREACH, ECONNREFUSED, ECONNREFUSED,
- EMSGSIZE, EHOSTUNREACH, 0, 0,
- 0, 0, 0, 0,
- ENOPROTOOPT, ECONNREFUSED
+ 0, 0, 0, 0,
+ 0, EMSGSIZE, EHOSTDOWN, EHOSTUNREACH,
+ ENETUNREACH, EHOSTUNREACH, ECONNREFUSED, ECONNREFUSED,
+ EMSGSIZE, EHOSTUNREACH, 0, 0,
+ 0, 0, 0, 0,
+ ENOPROTOOPT, ECONNREFUSED
};
static int
int i, was_ipforwarding = ipforwarding;
i = sysctl_handle_int(oidp, oidp->oid_arg1, oidp->oid_arg2, req);
- if (i != 0 || req->newptr == USER_ADDR_NULL)
- return (i);
+ if (i != 0 || req->newptr == USER_ADDR_NULL) {
+ return i;
+ }
if (was_ipforwarding && !ipforwarding) {
/* clean up IPv4 forwarding cached routes */
lck_mtx_lock(&ifp->if_cached_route_lock);
ROUTE_RELEASE(&ifp->if_fwd_route);
bzero(&ifp->if_fwd_route,
- sizeof (ifp->if_fwd_route));
+ sizeof(ifp->if_fwd_route));
lck_mtx_unlock(&ifp->if_cached_route_lock);
}
}
ifnet_head_done();
}
- return (0);
+ return 0;
}
/*
lck_mtx_convert_spin(&ifp->if_cached_route_lock);
/* Minor sanity check */
- if (src->ro_rt != NULL && rt_key(src->ro_rt)->sa_family != AF_INET)
+ if (src->ro_rt != NULL && rt_key(src->ro_rt)->sa_family != AF_INET) {
panic("%s: wrong or corrupted route: %p", __func__, src);
+ }
- route_copyout(dst, src, sizeof (*dst));
+ route_copyout(dst, src, sizeof(*dst));
lck_mtx_unlock(&ifp->if_cached_route_lock);
}
lck_mtx_convert_spin(&ifp->if_cached_route_lock);
/* Minor sanity check */
- if (src->ro_rt != NULL && rt_key(src->ro_rt)->sa_family != AF_INET)
+ if (src->ro_rt != NULL && rt_key(src->ro_rt)->sa_family != AF_INET) {
panic("%s: wrong or corrupted route: %p", __func__, src);
+ }
- if (ifp->if_fwd_cacheok)
- route_copyin(src, dst, sizeof (*src));
+ if (ifp->if_fwd_cacheok) {
+ route_copyin(src, dst, sizeof(*src));
+ }
lck_mtx_unlock(&ifp->if_cached_route_lock);
}
n_long dest;
struct in_addr pkt_dst;
u_int32_t nextmtu = 0, len;
- struct ip_out_args ipoa = { IFSCOPE_NONE, { 0 }, 0, 0,
- SO_TC_UNSPEC, _NET_SERVICE_TYPE_UNSPEC };
+ struct ip_out_args ipoa;
struct ifnet *rcvifp = m->m_pkthdr.rcvif;
+
+ bzero(&ipoa, sizeof(ipoa));
+ ipoa.ipoa_boundif = IFSCOPE_NONE;
+ ipoa.ipoa_sotc = SO_TC_UNSPEC;
+ ipoa.ipoa_netsvctype = _NET_SERVICE_TYPE_UNSPEC;
+
#if IPSEC
struct secpolicy *sp = NULL;
int ipsecerror;
#endif /* !IPFIREWALL */
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf("forward: src %lx dst %lx ttl %x\n",
(u_int32_t)ip->ip_src.s_addr, (u_int32_t)pkt_dst.s_addr,
ip->ip_ttl);
+ }
#endif
- if (m->m_flags & (M_BCAST|M_MCAST) || !in_canforward(pkt_dst)) {
+ if (m->m_flags & (M_BCAST | M_MCAST) || !in_canforward(pkt_dst)) {
OSAddAtomic(1, &ipstat.ips_cantforward);
m_freem(m);
return;
#if IPSTEALTH
if (!ipstealth) {
#endif /* IPSTEALTH */
- if (ip->ip_ttl <= IPTTLDEC) {
- icmp_error(m, ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS,
- dest, 0);
- return;
- }
-#if IPSTEALTH
+ if (ip->ip_ttl <= IPTTLDEC) {
+ icmp_error(m, ICMP_TIMXCEED, ICMP_TIMXCEED_INTRANS,
+ dest, 0);
+ return;
}
+#if IPSTEALTH
+}
#endif /* IPSTEALTH */
#if PF
ROUTE_RELEASE(&fwd_rt);
sin->sin_family = AF_INET;
- sin->sin_len = sizeof (*sin);
+ sin->sin_len = sizeof(*sin);
sin->sin_addr = pkt_dst;
rtalloc_scoped_ign(&fwd_rt, RTF_PRCLONING, ipoa.ipoa_boundif);
#if IPSTEALTH
if (!ipstealth) {
#endif /* IPSTEALTH */
- ip->ip_ttl -= IPTTLDEC;
+ ip->ip_ttl -= IPTTLDEC;
#if IPSTEALTH
- }
+}
#endif /* IPSTEALTH */
/*
*/
RT_LOCK_SPIN(rt);
if (rt->rt_ifp == m->m_pkthdr.rcvif &&
- !(rt->rt_flags & (RTF_DYNAMIC|RTF_MODIFIED)) &&
+ !(rt->rt_flags & (RTF_DYNAMIC | RTF_MODIFIED)) &&
satosin(rt_key(rt))->sin_addr.s_addr != INADDR_ANY &&
ipsendredirects && !srcrt && rt->rt_ifa != NULL) {
struct in_ifaddr *ia = (struct in_ifaddr *)rt->rt_ifa;
RT_CONVERT_LOCK(rt);
IFA_LOCK_SPIN(&ia->ia_ifa);
if ((src & ia->ia_subnetmask) == ia->ia_subnet) {
- if (rt->rt_flags & RTF_GATEWAY)
+ if (rt->rt_flags & RTF_GATEWAY) {
dest = satosin(rt->rt_gateway)->sin_addr.s_addr;
- else
+ } else {
dest = pkt_dst.s_addr;
+ }
/*
* Router requirements says to only send
* host redirects.
type = ICMP_REDIRECT;
code = ICMP_REDIRECT_HOST;
#if DIAGNOSTIC
- if (ipprintfs)
+ if (ipprintfs) {
printf("redirect (%d) to %lx\n", code,
(u_int32_t)dest);
+ }
#endif
}
IFA_UNLOCK(&ia->ia_ifa);
tag = m_tag_create(KERNEL_MODULE_TAG_ID,
KERNEL_TAG_TYPE_IPFORWARD,
- sizeof (*ipfwd_tag), M_NOWAIT, m);
+ sizeof(*ipfwd_tag), M_NOWAIT, m);
if (tag == NULL) {
error = ENOBUFS;
m_freem(m);
goto done;
}
- ipfwd_tag = (struct ip_fwd_tag *)(tag+1);
+ ipfwd_tag = (struct ip_fwd_tag *)(tag + 1);
ipfwd_tag->next_hop = next_hop;
m_tag_prepend(m, tag);
goto done;
}
}
- if (mcopy == NULL)
+ if (mcopy == NULL) {
goto done;
+ }
switch (error) {
- case 0: /* forwarded, but need redirect */
+ case 0: /* forwarded, but need redirect */
/* type, code set above */
break;
- case ENETUNREACH: /* shouldn't happen, checked above */
+ case ENETUNREACH: /* shouldn't happen, checked above */
case EHOSTUNREACH:
case ENETDOWN:
case EHOSTDOWN:
break;
} else {
RT_LOCK_SPIN(rt);
- if (rt->rt_ifp != NULL)
+ if (rt->rt_ifp != NULL) {
nextmtu = rt->rt_ifp->if_mtu;
+ }
RT_UNLOCK(rt);
}
#ifdef IPSEC
- if (ipsec_bypass)
+ if (ipsec_bypass) {
break;
+ }
/*
* If the packet is routed over IPsec tunnel, tell the
sp = ipsec4_getpolicybyaddr(mcopy, IPSEC_DIR_OUTBOUND,
IP_FORWARDING, &ipsecerror);
- if (sp == NULL)
+ if (sp == NULL) {
break;
+ }
/*
* find the correct route for outer IPv4
ipsechdr = ipsec_hdrsiz(sp);
ipm = mtod(mcopy, struct ip *);
- bcopy(&sp->req->saidx, &saidx, sizeof (saidx));
+ bcopy(&sp->req->saidx, &saidx, sizeof(saidx));
saidx.mode = sp->req->saidx.mode;
saidx.reqid = sp->req->saidx.reqid;
sin = SIN(&saidx.src);
if (sin->sin_len == 0) {
- sin->sin_len = sizeof (*sin);
+ sin->sin_len = sizeof(*sin);
sin->sin_family = AF_INET;
sin->sin_port = IPSEC_PORT_ANY;
bcopy(&ipm->ip_src, &sin->sin_addr,
- sizeof (sin->sin_addr));
+ sizeof(sin->sin_addr));
}
sin = SIN(&saidx.dst);
if (sin->sin_len == 0) {
- sin->sin_len = sizeof (*sin);
+ sin->sin_len = sizeof(*sin);
sin->sin_family = AF_INET;
sin->sin_port = IPSEC_PORT_ANY;
bcopy(&ipm->ip_dst, &sin->sin_addr,
- sizeof (sin->sin_addr));
+ sizeof(sin->sin_addr));
}
sav = key_allocsa_policy(&saidx);
if (sav != NULL) {
}
break;
- case EACCES: /* ipfw denied packet */
+ case EACCES: /* ipfw denied packet */
m_freem(mcopy);
goto done;
}
- if (type == ICMP_UNREACH && code == ICMP_UNREACH_NEEDFRAG)
+ if (type == ICMP_UNREACH && code == ICMP_UNREACH_NEEDFRAG) {
OSAddAtomic(1, &ipstat.ips_cantfrag);
+ }
icmp_error(mcopy, type, code, dest, nextmtu);
done:
struct timeval tv;
getmicrotime(&tv);
- mp = sbcreatecontrol_mbuf((caddr_t)&tv, sizeof (tv),
+ mp = sbcreatecontrol_mbuf((caddr_t)&tv, sizeof(tv),
SCM_TIMESTAMP, SOL_SOCKET, mp);
if (*mp == NULL) {
goto no_mbufs;
uint64_t time;
time = mach_absolute_time();
- mp = sbcreatecontrol_mbuf((caddr_t)&time, sizeof (time),
+ mp = sbcreatecontrol_mbuf((caddr_t)&time, sizeof(time),
SCM_TIMESTAMP_MONOTONIC, SOL_SOCKET, mp);
if (*mp == NULL) {
goto no_mbufs;
}
}
+ if (inp->inp_socket->so_options & SO_TIMESTAMP_CONTINUOUS) {
+ uint64_t time;
+
+ time = mach_continuous_time();
+ mp = sbcreatecontrol_mbuf((caddr_t)&time, sizeof(time),
+ SCM_TIMESTAMP_CONTINUOUS, SOL_SOCKET, mp);
+ if (*mp == NULL) {
+ goto no_mbufs;
+ }
+ }
if (inp->inp_flags & INP_RECVDSTADDR) {
mp = sbcreatecontrol_mbuf((caddr_t)&ip->ip_dst,
- sizeof (struct in_addr), IP_RECVDSTADDR, IPPROTO_IP, mp);
+ sizeof(struct in_addr), IP_RECVDSTADDR, IPPROTO_IP, mp);
if (*mp == NULL) {
goto no_mbufs;
}
/* options were tossed already */
if (inp->inp_flags & INP_RECVOPTS) {
mp = sbcreatecontrol_mbuf((caddr_t)opts_deleted_above,
- sizeof (struct in_addr), IP_RECVOPTS, IPPROTO_IP, mp);
+ sizeof(struct in_addr), IP_RECVOPTS, IPPROTO_IP, mp);
if (*mp == NULL) {
goto no_mbufs;
}
/* ip_srcroute doesn't do what we want here, need to fix */
if (inp->inp_flags & INP_RECVRETOPTS) {
mp = sbcreatecontrol_mbuf((caddr_t)ip_srcroute(),
- sizeof (struct in_addr), IP_RECVRETOPTS, IPPROTO_IP, mp);
+ sizeof(struct in_addr), IP_RECVRETOPTS, IPPROTO_IP, mp);
if (*mp == NULL) {
goto no_mbufs;
}
* Make sure to accomodate the largest possible
* size of SA(if_lladdr)->sa_len.
*/
- _CASSERT(sizeof (sdlbuf) == (SOCK_MAXADDRLEN + 1));
+ _CASSERT(sizeof(sdlbuf) == (SOCK_MAXADDRLEN + 1));
ifnet_head_lock_shared();
if ((ifp = m->m_pkthdr.rcvif) != NULL &&
struct ifaddr *ifa = ifnet_addrs[ifp->if_index - 1];
struct sockaddr_dl *sdp;
- if (!ifa || !ifa->ifa_addr)
+ if (!ifa || !ifa->ifa_addr) {
goto makedummy;
+ }
IFA_LOCK_SPIN(ifa);
sdp = SDL(ifa->ifa_addr);
}
if (inp->inp_flags & INP_RECVTTL) {
mp = sbcreatecontrol_mbuf((caddr_t)&ip->ip_ttl,
- sizeof (ip->ip_ttl), IP_RECVTTL, IPPROTO_IP, mp);
+ sizeof(ip->ip_ttl), IP_RECVTTL, IPPROTO_IP, mp);
if (*mp == NULL) {
goto no_mbufs;
}
if (inp->inp_socket->so_flags & SOF_RECV_TRAFFIC_CLASS) {
int tc = m_get_traffic_class(m);
- mp = sbcreatecontrol_mbuf((caddr_t)&tc, sizeof (tc),
+ mp = sbcreatecontrol_mbuf((caddr_t)&tc, sizeof(tc),
SO_TRAFFIC_CLASS, SOL_SOCKET, mp);
if (*mp == NULL) {
goto no_mbufs;
if (inp->inp_flags & INP_PKTINFO) {
struct in_pktinfo pi;
- bzero(&pi, sizeof (struct in_pktinfo));
- bcopy(&ip->ip_dst, &pi.ipi_addr, sizeof (struct in_addr));
+ bzero(&pi, sizeof(struct in_pktinfo));
+ bcopy(&ip->ip_dst, &pi.ipi_addr, sizeof(struct in_addr));
pi.ipi_ifindex = (m != NULL && m->m_pkthdr.rcvif != NULL) ?
m->m_pkthdr.rcvif->if_index : 0;
mp = sbcreatecontrol_mbuf((caddr_t)&pi,
- sizeof (struct in_pktinfo), IP_RECVPKTINFO, IPPROTO_IP, mp);
+ sizeof(struct in_pktinfo), IP_RECVPKTINFO, IPPROTO_IP, mp);
if (*mp == NULL) {
goto no_mbufs;
}
goto no_mbufs;
}
}
- return (0);
+ return 0;
no_mbufs:
ipstat.ips_pktdropcntrl++;
- return (ENOBUFS);
+ return ENOBUFS;
}
static inline u_short
m->m_pkthdr.csum_data = 0xffff;
}
- if (sum != 0)
+ if (sum != 0) {
OSAddAtomic(1, &ipstat.ips_badsum);
+ }
- return (sum);
+ return sum;
}
static int
ip_getstat SYSCTL_HANDLER_ARGS
{
#pragma unused(oidp, arg1, arg2)
- if (req->oldptr == USER_ADDR_NULL)
- req->oldlen = (size_t)sizeof (struct ipstat);
+ if (req->oldptr == USER_ADDR_NULL) {
+ req->oldlen = (size_t)sizeof(struct ipstat);
+ }
- return (SYSCTL_OUT(req, &ipstat, MIN(sizeof (ipstat), req->oldlen)));
+ return SYSCTL_OUT(req, &ipstat, MIN(sizeof(ipstat), req->oldlen));
}
void
m->m_pkthdr.src_ifindex = ia->ia_ifp->if_index;
} else {
m->m_pkthdr.src_ifindex = src_idx;
- if (src_idx != 0)
+ if (src_idx != 0) {
m->m_pkthdr.pkt_flags |= PKTF_IFAINFO;
+ }
}
}
m->m_pkthdr.dst_ifindex = ia->ia_ifp->if_index;
} else {
m->m_pkthdr.dst_ifindex = dst_idx;
- if (dst_idx != 0)
+ if (dst_idx != 0) {
m->m_pkthdr.pkt_flags |= PKTF_IFAINFO;
+ }
}
}
{
VERIFY(m->m_flags & M_PKTHDR);
- if (!(m->m_pkthdr.pkt_flags & PKTF_IFAINFO))
- return (-1);
+ if (!(m->m_pkthdr.pkt_flags & PKTF_IFAINFO)) {
+ return -1;
+ }
- if (src_idx != NULL)
+ if (src_idx != NULL) {
*src_idx = m->m_pkthdr.src_ifindex;
+ }
- if (iaf != NULL)
+ if (iaf != NULL) {
*iaf = 0;
+ }
- return (0);
+ return 0;
}
int
{
VERIFY(m->m_flags & M_PKTHDR);
- if (!(m->m_pkthdr.pkt_flags & PKTF_IFAINFO))
- return (-1);
+ if (!(m->m_pkthdr.pkt_flags & PKTF_IFAINFO)) {
+ return -1;
+ }
- if (dst_idx != NULL)
+ if (dst_idx != NULL) {
*dst_idx = m->m_pkthdr.dst_ifindex;
+ }
- if (iaf != NULL)
+ if (iaf != NULL) {
*iaf = 0;
+ }
- return (0);
+ return 0;
}
/*
* If no matching tunnel that is up is found, we inject
* the mbuf to raw ip socket to see if anyone picks it up.
*/
- if (m != NULL)
+ if (m != NULL) {
rip_input(m, off);
+ }
}
/*
gre_input_func = fn;
lck_mtx_unlock(inet_domain_mutex);
- return (0);
+ return 0;
}
#if (DEBUG || DEVELOPMENT)
i = ip_input_measure;
error = sysctl_handle_int(oidp, &i, 0, req);
- if (error || req->newptr == USER_ADDR_NULL)
+ if (error || req->newptr == USER_ADDR_NULL) {
goto done;
+ }
/* impose bounds */
if (i < 0 || i > 1) {
error = EINVAL;
}
ip_input_measure = i;
done:
- return (error);
+ return error;
}
static int
i = ip_input_measure_bins;
error = sysctl_handle_quad(oidp, &i, 0, req);
- if (error || req->newptr == USER_ADDR_NULL)
+ if (error || req->newptr == USER_ADDR_NULL) {
goto done;
+ }
/* validate data */
if (!net_perf_validate_bins(i)) {
error = EINVAL;
}
ip_input_measure_bins = i;
done:
- return (error);
+ return error;
}
static int
sysctl_ip_input_getperf SYSCTL_HANDLER_ARGS
{
#pragma unused(oidp, arg1, arg2)
- if (req->oldptr == USER_ADDR_NULL)
- req->oldlen = (size_t)sizeof (struct ipstat);
+ if (req->oldptr == USER_ADDR_NULL) {
+ req->oldlen = (size_t)sizeof(struct ipstat);
+ }
- return (SYSCTL_OUT(req, &net_perf, MIN(sizeof (net_perf), req->oldlen)));
+ return SYSCTL_OUT(req, &net_perf, MIN(sizeof(net_perf), req->oldlen));
}
#endif /* (DEBUG || DEVELOPMENT) */
projects / apple / xnu.git / blobdiff