| udp_usrreq.c (72650) | udp_usrreq.c (72778) |
|---|---|
| 1/* 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95 | 1/* 2 * Copyright (c) 1982, 1986, 1988, 1990, 1993, 1995 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 17 unchanged lines hidden (view full) --- 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)udp_usrreq.c 8.6 (Berkeley) 5/23/95 |
| 34 * $FreeBSD: head/sys/netinet/udp_usrreq.c 72650 2001-02-18 13:30:20Z green $ | 34 * $FreeBSD: head/sys/netinet/udp_usrreq.c 72778 2001-02-20 23:25:04Z jesper $ |
| 35 */ 36 37#include "opt_ipsec.h" 38#include "opt_inet6.h" 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> --- 463 unchanged lines hidden (view full) --- 506 register struct ip *ip = vip; 507 register struct udphdr *uh; 508 509 if (!PRC_IS_REDIRECT(cmd) && 510 ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0)) 511 return; 512 if (ip) { 513 uh = (struct udphdr *)((caddr_t)ip + (ip->ip_hl << 2)); | 35 */ 36 37#include "opt_ipsec.h" 38#include "opt_inet6.h" 39 40#include <sys/param.h> 41#include <sys/systm.h> 42#include <sys/kernel.h> --- 463 unchanged lines hidden (view full) --- 506 register struct ip *ip = vip; 507 register struct udphdr *uh; 508 509 if (!PRC_IS_REDIRECT(cmd) && 510 ((unsigned)cmd >= PRC_NCMDS || inetctlerrmap[cmd] == 0)) 511 return; 512 if (ip) { 513 uh = (struct udphdr *)((caddr_t)ip + (ip->ip_hl << 2)); |
| 514 /* 515 * Only call in_pcbnotify if the src port number != 0, as we 516 * treat 0 as a wildcard in src/sys/in_pbc.c:in_pcbnotify() 517 * 518 * It's sufficient to check for src|local port, as we'll have no 519 * sessions with src|local port == 0 520 * 521 * Without this a attacker sending ICMP messages, where the attached 522 * IP header (+ 8 bytes) has the address and port numbers == 0, would 523 * have the ICMP message applied to all sessions. 524 */ 525 if (uh->uh_sport == 0) 526 return; |
|
| 514 in_pcbnotify(&udb, sa, uh->uh_dport, ip->ip_src, uh->uh_sport, 515 cmd, udp_notify, 0, 0); 516 } else 517 in_pcbnotify(&udb, sa, 0, zeroin_addr, 0, cmd, udp_notify, 0, 0); 518} 519 520static int 521udp_pcblist(SYSCTL_HANDLER_ARGS) --- 392 unchanged lines hidden --- | 527 in_pcbnotify(&udb, sa, uh->uh_dport, ip->ip_src, uh->uh_sport, 528 cmd, udp_notify, 0, 0); 529 } else 530 in_pcbnotify(&udb, sa, 0, zeroin_addr, 0, cmd, udp_notify, 0, 0); 531} 532 533static int 534udp_pcblist(SYSCTL_HANDLER_ARGS) --- 392 unchanged lines hidden --- |