| tcpmss.c (69303) | tcpmss.c (78410) |
|---|---|
| 1/*- 2 * Copyright (c) 2000 Ruslan Ermilov and Brian Somers <brian@Awfulhak.org> 3 * 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 --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2000 Ruslan Ermilov and Brian Somers <brian@Awfulhak.org> 3 * 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 --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/usr.sbin/ppp/tcpmss.c 69303 2000-11-28 13:18:35Z brian $ | 26 * $FreeBSD: head/usr.sbin/ppp/tcpmss.c 78410 2001-06-18 14:59:36Z brian $ |
| 27 */ 28 29#include <sys/param.h> 30 | 27 */ 28 29#include <sys/param.h> 30 |
| 31#include <sys/socket.h> 32#include <net/route.h> |
|
| 31#include <netinet/in_systm.h> 32#include <netinet/in.h> 33#include <netinet/ip.h> 34#include <netinet/tcp.h> 35#include <sys/un.h> 36 37#include <termios.h> 38 --- 10 unchanged lines hidden (view full) --- 49#include "ccp.h" 50#include "link.h" 51#include "iplist.h" 52#include "slcompress.h" 53#include "ipcp.h" 54#include "filter.h" 55#include "descriptor.h" 56#include "mp.h" | 33#include <netinet/in_systm.h> 34#include <netinet/in.h> 35#include <netinet/ip.h> 36#include <netinet/tcp.h> 37#include <sys/un.h> 38 39#include <termios.h> 40 --- 10 unchanged lines hidden (view full) --- 51#include "ccp.h" 52#include "link.h" 53#include "iplist.h" 54#include "slcompress.h" 55#include "ipcp.h" 56#include "filter.h" 57#include "descriptor.h" 58#include "mp.h" |
| 59#include "iface.h" |
|
| 57#ifndef NORADIUS 58#include "radius.h" 59#endif 60#include "bundle.h" 61 62 63/*- 64 * We are in a liberal position about MSS --- 23 unchanged lines hidden (view full) --- 88 /* 89 * Check for MSS option only for TCP packets with zero fragment offsets 90 * and correct total and header lengths. 91 */ 92 if (pip->ip_p == IPPROTO_TCP && (ntohs(pip->ip_off) & IP_OFFMASK) == 0 && 93 ntohs(pip->ip_len) == plen && hlen <= plen && 94 plen - hlen >= sizeof(struct tcphdr)) 95 MSSFixup((struct tcphdr *)(MBUF_CTOP(bp) + hlen), plen - hlen, | 60#ifndef NORADIUS 61#include "radius.h" 62#endif 63#include "bundle.h" 64 65 66/*- 67 * We are in a liberal position about MSS --- 23 unchanged lines hidden (view full) --- 91 /* 92 * Check for MSS option only for TCP packets with zero fragment offsets 93 * and correct total and header lengths. 94 */ 95 if (pip->ip_p == IPPROTO_TCP && (ntohs(pip->ip_off) & IP_OFFMASK) == 0 && 96 ntohs(pip->ip_len) == plen && hlen <= plen && 97 plen - hlen >= sizeof(struct tcphdr)) 98 MSSFixup((struct tcphdr *)(MBUF_CTOP(bp) + hlen), plen - hlen, |
| 96 MAXMSS(bundle->mtu)); | 99 MAXMSS(bundle->iface->mtu)); |
| 97 98 return bp; 99} 100 101/*- 102 * The following macro is used to update an 103 * internet checksum. "acc" is a 32-bit 104 * accumulation of all the changes to the --- 64 unchanged lines hidden --- | 100 101 return bp; 102} 103 104/*- 105 * The following macro is used to update an 106 * internet checksum. "acc" is a 32-bit 107 * accumulation of all the changes to the --- 64 unchanged lines hidden --- |