diff options
Diffstat (limited to 'sys/netinet/ip_input.c')
| -rw-r--r-- | sys/netinet/ip_input.c | 80 |
1 files changed, 52 insertions, 28 deletions
diff --git a/sys/netinet/ip_input.c b/sys/netinet/ip_input.c index ce92c2f..8e40d84 100644 --- a/sys/netinet/ip_input.c +++ b/sys/netinet/ip_input.c @@ -89,33 +89,47 @@ __FBSDID("$FreeBSD$"); CTASSERT(sizeof(struct ip) == 20); #endif -int rsvp_on = 0; +#ifdef VIMAGE_GLOBALS +static int ipsendredirects; +static int ip_checkinterface; +static int ip_keepfaith; +static int ip_sendsourcequench; +int ip_defttl; +int ip_do_randomid; +int ipforwarding; +struct in_ifaddrhead in_ifaddrhead; /* first inet address */ +struct in_ifaddrhashhead *in_ifaddrhashtbl; /* inet addr hash table */ +u_long in_ifaddrhmask; /* mask for hash table */ +struct ipstat ipstat; +static int ip_rsvp_on; +struct socket *ip_rsvpd; +int rsvp_on; +static TAILQ_HEAD(ipqhead, ipq) ipq[IPREASS_NHASH]; +static int maxnipq; /* Administrative limit on # reass queues. */ +static int maxfragsperpacket; +int ipstealth; +static int nipq; /* Total # of reass queues */ +#endif -int ipforwarding = 0; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_FORWARDING, forwarding, CTLFLAG_RW, ipforwarding, 0, "Enable IP forwarding between interfaces"); -static int ipsendredirects = 1; /* XXX */ SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_SENDREDIRECTS, redirect, CTLFLAG_RW, ipsendredirects, 0, "Enable sending IP redirects"); -int ip_defttl = IPDEFTTL; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_DEFTTL, ttl, CTLFLAG_RW, ip_defttl, 0, "Maximum TTL on IP packets"); -static int ip_keepfaith = 0; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, IPCTL_KEEPFAITH, keepfaith, CTLFLAG_RW, ip_keepfaith, 0, "Enable packet capture for FAITH IPv4->IPv6 translater daemon"); -static int ip_sendsourcequench = 0; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, sendsourcequench, CTLFLAG_RW, ip_sendsourcequench, 0, "Enable the transmission of source quench packets"); -int ip_do_randomid = 0; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, random_id, CTLFLAG_RW, ip_do_randomid, 0, "Assign random ip_id values"); @@ -132,7 +146,6 @@ SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, random_id, * to the loopback interface instead of the interface where the * packets for those addresses are received. */ -static int ip_checkinterface = 0; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, check_interface, CTLFLAG_RW, ip_checkinterface, 0, "Verify packet arrives on correct interface"); @@ -145,9 +158,6 @@ static int ipqmaxlen = IFQ_MAXLEN; extern struct domain inetdomain; extern struct protosw inetsw[]; u_char ip_protox[IPPROTO_MAX]; -struct in_ifaddrhead in_ifaddrhead; /* first inet address */ -struct in_ifaddrhashhead *in_ifaddrhashtbl; /* inet addr hash table */ -u_long in_ifaddrhmask; /* mask for hash table */ SYSCTL_INT(_net_inet_ip, IPCTL_INTRQMAXLEN, intr_queue_maxlen, CTLFLAG_RW, &ipintrq.ifq_maxlen, 0, "Maximum size of the IP input queue"); @@ -155,21 +165,10 @@ SYSCTL_INT(_net_inet_ip, IPCTL_INTRQDROPS, intr_queue_drops, CTLFLAG_RD, &ipintrq.ifq_drops, 0, "Number of packets dropped from the IP input queue"); -struct ipstat ipstat; SYSCTL_V_STRUCT(V_NET, vnet_inet, _net_inet_ip, IPCTL_STATS, stats, CTLFLAG_RW, ipstat, ipstat, "IP statistics (struct ipstat, netinet/ip_var.h)"); -/* - * IP datagram reassembly. - */ -#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) - static uma_zone_t ipq_zone; -static TAILQ_HEAD(ipqhead, ipq) ipq[IPREASS_NHASH]; static struct mtx ipqlock; #define IPQ_LOCK() mtx_lock(&ipqlock) @@ -180,13 +179,10 @@ static struct mtx ipqlock; static void maxnipq_update(void); static void ipq_zone_change(void *); -static int maxnipq; /* Administrative limit on # reass queues. */ -static int nipq = 0; /* Total # of reass queues */ SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, fragpackets, CTLFLAG_RD, nipq, 0, "Current number of IPv4 fragment reassembly queue entries"); -static int maxfragsperpacket; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, maxfragsperpacket, CTLFLAG_RW, maxfragsperpacket, 0, "Maximum number of IPv4 fragments allowed per packet"); @@ -199,7 +195,6 @@ SYSCTL_INT(_net_inet_ip, IPCTL_DEFMTU, mtu, CTLFLAG_RW, #endif #ifdef IPSTEALTH -int ipstealth = 0; SYSCTL_V_INT(V_NET, vnet_inet, _net_inet_ip, OID_AUTO, stealth, CTLFLAG_RW, ipstealth, 0, "IP stealth mode, no TTL decrementation on forwarding"); #endif @@ -225,6 +220,37 @@ ip_init(void) struct protosw *pr; int i; + V_ipsendredirects = 1; /* XXX */ + V_ip_checkinterface = 0; + V_ip_keepfaith = 0; + V_ip_sendsourcequench = 0; + V_rsvp_on = 0; + V_ip_defttl = IPDEFTTL; + V_ip_do_randomid = 0; + V_ipforwarding = 0; + V_ipstealth = 0; + V_nipq = 0; /* Total # of reass queues */ + + V_ipport_lowfirstauto = IPPORT_RESERVED - 1; /* 1023 */ + V_ipport_lowlastauto = IPPORT_RESERVEDSTART; /* 600 */ + V_ipport_firstauto = IPPORT_EPHEMERALFIRST; /* 10000 */ + V_ipport_lastauto = IPPORT_EPHEMERALLAST; /* 65535 */ + V_ipport_hifirstauto = IPPORT_HIFIRSTAUTO; /* 49152 */ + V_ipport_hilastauto = IPPORT_HILASTAUTO; /* 65535 */ + V_ipport_reservedhigh = IPPORT_RESERVED - 1; /* 1023 */ + V_ipport_reservedlow = 0; + V_ipport_randomized = 1; /* user controlled via sysctl */ + V_ipport_randomcps = 10; /* user controlled via sysctl */ + V_ipport_randomtime = 45; /* user controlled via sysctl */ + V_ipport_stoprandom = 0; /* toggled by ipport_tick */ + +#ifdef NOTYET + /* XXX global static but not instantiated in this file */ + V_ipfastforward_active = 0; + V_subnetsarelocal = 0; + V_sameprefixcarponly = 0; +#endif + TAILQ_INIT(&V_in_ifaddrhead); V_in_ifaddrhashtbl = hashinit(INADDR_NHASH, M_IFADDR, &V_in_ifaddrhmask); pr = pffindproto(PF_INET, IPPROTO_RAW, SOCK_RAW); @@ -1591,8 +1617,6 @@ makedummy: * locking. This code remains in ip_input.c as ip_mroute.c is optionally * compiled. */ -static int ip_rsvp_on; -struct socket *ip_rsvpd; int ip_rsvp_init(struct socket *so) { |
