| udp_usrreq.c (205251) | udp_usrreq.c (207369) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 3 * The Regents of the University of California. 4 * Copyright (c) 2008 Robert N. M. Watson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 18 unchanged lines hidden (view full) --- 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95 32 */ 33 34#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 3 * The Regents of the University of California. 4 * Copyright (c) 2008 Robert N. M. Watson 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions --- 18 unchanged lines hidden (view full) --- 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95 32 */ 33 34#include <sys/cdefs.h> |
| 35__FBSDID("$FreeBSD: head/sys/netinet/udp_usrreq.c 205251 2010-03-17 18:28:27Z bz $"); | 35__FBSDID("$FreeBSD: head/sys/netinet/udp_usrreq.c 207369 2010-04-29 11:52:42Z bz $"); |
| 36 37#include "opt_ipfw.h" 38#include "opt_inet6.h" 39#include "opt_ipsec.h" 40 41#include <sys/param.h> 42#include <sys/domain.h> 43#include <sys/eventhandler.h> --- 45 unchanged lines hidden (view full) --- 89 90#include <security/mac/mac_framework.h> 91 92/* 93 * UDP protocol implementation. 94 * Per RFC 768, August, 1980. 95 */ 96 | 36 37#include "opt_ipfw.h" 38#include "opt_inet6.h" 39#include "opt_ipsec.h" 40 41#include <sys/param.h> 42#include <sys/domain.h> 43#include <sys/eventhandler.h> --- 45 unchanged lines hidden (view full) --- 89 90#include <security/mac/mac_framework.h> 91 92/* 93 * UDP protocol implementation. 94 * Per RFC 768, August, 1980. 95 */ 96 |
| 97VNET_DEFINE(int, udp_blackhole); 98 | |
| 99/* 100 * BSD 4.2 defaulted the udp checksum to be off. Turning off udp checksums 101 * removes the only data integrity mechanism for packets and malformed 102 * packets that would otherwise be discarded due to bad checksums, and may 103 * cause problems (especially for NFS data blocks). 104 */ 105static int udp_cksum = 1; 106SYSCTL_INT(_net_inet_udp, UDPCTL_CHECKSUM, checksum, CTLFLAG_RW, &udp_cksum, 107 0, "compute udp checksum"); 108 109int udp_log_in_vain = 0; 110SYSCTL_INT(_net_inet_udp, OID_AUTO, log_in_vain, CTLFLAG_RW, 111 &udp_log_in_vain, 0, "Log all incoming UDP packets"); 112 | 97/* 98 * BSD 4.2 defaulted the udp checksum to be off. Turning off udp checksums 99 * removes the only data integrity mechanism for packets and malformed 100 * packets that would otherwise be discarded due to bad checksums, and may 101 * cause problems (especially for NFS data blocks). 102 */ 103static int udp_cksum = 1; 104SYSCTL_INT(_net_inet_udp, UDPCTL_CHECKSUM, checksum, CTLFLAG_RW, &udp_cksum, 105 0, "compute udp checksum"); 106 107int udp_log_in_vain = 0; 108SYSCTL_INT(_net_inet_udp, OID_AUTO, log_in_vain, CTLFLAG_RW, 109 &udp_log_in_vain, 0, "Log all incoming UDP packets"); 110 |
| 111VNET_DEFINE(int, udp_blackhole) = 0; |
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| 113SYSCTL_VNET_INT(_net_inet_udp, OID_AUTO, blackhole, CTLFLAG_RW, 114 &VNET_NAME(udp_blackhole), 0, 115 "Do not send port unreachables for refused connects"); 116 117u_long udp_sendspace = 9216; /* really max datagram size */ 118 /* 40 1K datagrams */ 119SYSCTL_ULONG(_net_inet_udp, UDPCTL_MAXDGRAM, maxdgram, CTLFLAG_RW, 120 &udp_sendspace, 0, "Maximum outgoing UDP datagram size"); --- 7 unchanged lines hidden (view full) --- 128 ); 129 130SYSCTL_ULONG(_net_inet_udp, UDPCTL_RECVSPACE, recvspace, CTLFLAG_RW, 131 &udp_recvspace, 0, "Maximum space for incoming UDP datagrams"); 132 133VNET_DEFINE(struct inpcbhead, udb); /* from udp_var.h */ 134VNET_DEFINE(struct inpcbinfo, udbinfo); 135static VNET_DEFINE(uma_zone_t, udpcb_zone); | 112SYSCTL_VNET_INT(_net_inet_udp, OID_AUTO, blackhole, CTLFLAG_RW, 113 &VNET_NAME(udp_blackhole), 0, 114 "Do not send port unreachables for refused connects"); 115 116u_long udp_sendspace = 9216; /* really max datagram size */ 117 /* 40 1K datagrams */ 118SYSCTL_ULONG(_net_inet_udp, UDPCTL_MAXDGRAM, maxdgram, CTLFLAG_RW, 119 &udp_sendspace, 0, "Maximum outgoing UDP datagram size"); --- 7 unchanged lines hidden (view full) --- 127 ); 128 129SYSCTL_ULONG(_net_inet_udp, UDPCTL_RECVSPACE, recvspace, CTLFLAG_RW, 130 &udp_recvspace, 0, "Maximum space for incoming UDP datagrams"); 131 132VNET_DEFINE(struct inpcbhead, udb); /* from udp_var.h */ 133VNET_DEFINE(struct inpcbinfo, udbinfo); 134static VNET_DEFINE(uma_zone_t, udpcb_zone); |
| 136VNET_DEFINE(struct udpstat, udpstat); /* from udp_var.h */ 137 | |
| 138#define V_udpcb_zone VNET(udpcb_zone) 139 140#ifndef UDBHASHSIZE 141#define UDBHASHSIZE 128 142#endif 143 | 135#define V_udpcb_zone VNET(udpcb_zone) 136 137#ifndef UDBHASHSIZE 138#define UDBHASHSIZE 128 139#endif 140 |
| 141VNET_DEFINE(struct udpstat, udpstat); /* from udp_var.h */ |
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| 144SYSCTL_VNET_STRUCT(_net_inet_udp, UDPCTL_STATS, stats, CTLFLAG_RW, 145 &VNET_NAME(udpstat), udpstat, 146 "UDP statistics (struct udpstat, netinet/udp_var.h)"); 147 148static void udp_detach(struct socket *so); 149static int udp_output(struct inpcb *, struct mbuf *, struct sockaddr *, 150 struct mbuf *, struct thread *); 151#ifdef IPSEC --- 22 unchanged lines hidden (view full) --- 174 INP_LOCK_INIT(inp, "inp", "udpinp"); 175 return (0); 176} 177 178void 179udp_init(void) 180{ 181 | 142SYSCTL_VNET_STRUCT(_net_inet_udp, UDPCTL_STATS, stats, CTLFLAG_RW, 143 &VNET_NAME(udpstat), udpstat, 144 "UDP statistics (struct udpstat, netinet/udp_var.h)"); 145 146static void udp_detach(struct socket *so); 147static int udp_output(struct inpcb *, struct mbuf *, struct sockaddr *, 148 struct mbuf *, struct thread *); 149#ifdef IPSEC --- 22 unchanged lines hidden (view full) --- 172 INP_LOCK_INIT(inp, "inp", "udpinp"); 173 return (0); 174} 175 176void 177udp_init(void) 178{ 179 |
| 182 V_udp_blackhole = 0; | |
| 183 in_pcbinfo_init(&V_udbinfo, "udp", &V_udb, UDBHASHSIZE, UDBHASHSIZE, 184 "udp_inpcb", udp_inpcb_init, NULL, UMA_ZONE_NOFREE); 185 V_udpcb_zone = uma_zcreate("udpcb", sizeof(struct udpcb), 186 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 187 uma_zone_set_max(V_udpcb_zone, maxsockets); 188 EVENTHANDLER_REGISTER(maxsockets_change, udp_zone_change, NULL, 189 EVENTHANDLER_PRI_ANY); 190} --- 1424 unchanged lines hidden --- | 180 in_pcbinfo_init(&V_udbinfo, "udp", &V_udb, UDBHASHSIZE, UDBHASHSIZE, 181 "udp_inpcb", udp_inpcb_init, NULL, UMA_ZONE_NOFREE); 182 V_udpcb_zone = uma_zcreate("udpcb", sizeof(struct udpcb), 183 NULL, NULL, NULL, NULL, UMA_ALIGN_PTR, UMA_ZONE_NOFREE); 184 uma_zone_set_max(V_udpcb_zone, maxsockets); 185 EVENTHANDLER_REGISTER(maxsockets_change, udp_zone_change, NULL, 186 EVENTHANDLER_PRI_ANY); 187} --- 1424 unchanged lines hidden --- |