diff options
Diffstat (limited to 'pfinet/linux-inet/protocol.c')
| -rw-r--r-- | pfinet/linux-inet/protocol.c | 177 |
1 files changed, 0 insertions, 177 deletions
diff --git a/pfinet/linux-inet/protocol.c b/pfinet/linux-inet/protocol.c deleted file mode 100644 index a47d27cd..00000000 --- a/pfinet/linux-inet/protocol.c +++ /dev/null @@ -1,177 +0,0 @@ -/* - * INET An implementation of the TCP/IP protocol suite for the LINUX - * operating system. INET is implemented using the BSD Socket - * interface as the means of communication with the user level. - * - * INET protocol dispatch tables. - * - * Version: @(#)protocol.c 1.0.5 05/25/93 - * - * Authors: Ross Biro, <bir7@leland.Stanford.Edu> - * Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> - * - * Fixes: - * Alan Cox : Ahah! udp icmp errors don't work because - * udp_err is never called! - * Alan Cox : Added new fields for init and ready for - * proper fragmentation (_NO_ 4K limits!) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ -#include <asm/segment.h> -#include <asm/system.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/string.h> -#include <linux/config.h> -#include <linux/socket.h> -#include <linux/in.h> -#include <linux/inet.h> -#include <linux/netdevice.h> -#include <linux/timer.h> -#include "ip.h" -#include "protocol.h" -#include "tcp.h" -#include <linux/skbuff.h> -#include "sock.h" -#include "icmp.h" -#include "udp.h" -#include <linux/igmp.h> - - -static struct inet_protocol tcp_protocol = { - tcp_rcv, /* TCP handler */ - NULL, /* No fragment handler (and won't be for a long time) */ - tcp_err, /* TCP error control */ - NULL, /* next */ - IPPROTO_TCP, /* protocol ID */ - 0, /* copy */ - NULL, /* data */ - "TCP" /* name */ -}; - - -static struct inet_protocol udp_protocol = { - udp_rcv, /* UDP handler */ - NULL, /* Will be UDP fraglist handler */ - udp_err, /* UDP error control */ - &tcp_protocol, /* next */ - IPPROTO_UDP, /* protocol ID */ - 0, /* copy */ - NULL, /* data */ - "UDP" /* name */ -}; - - -static struct inet_protocol icmp_protocol = { - icmp_rcv, /* ICMP handler */ - NULL, /* ICMP never fragments anyway */ - NULL, /* ICMP error control */ - &udp_protocol, /* next */ - IPPROTO_ICMP, /* protocol ID */ - 0, /* copy */ - NULL, /* data */ - "ICMP" /* name */ -}; - -#ifndef CONFIG_IP_MULTICAST -struct inet_protocol *inet_protocol_base = &icmp_protocol; -#else -static struct inet_protocol igmp_protocol = { - igmp_rcv, /* IGMP handler */ - NULL, /* IGMP never fragments anyway */ - NULL, /* IGMP error control */ - &icmp_protocol, /* next */ - IPPROTO_IGMP, /* protocol ID */ - 0, /* copy */ - NULL, /* data */ - "IGMP" /* name */ -}; - -struct inet_protocol *inet_protocol_base = &igmp_protocol; -#endif - -struct inet_protocol *inet_protos[MAX_INET_PROTOS] = { - NULL -}; - - -struct inet_protocol * -inet_get_protocol(unsigned char prot) -{ - unsigned char hash; - struct inet_protocol *p; - - hash = prot & (MAX_INET_PROTOS - 1); - for (p = inet_protos[hash] ; p != NULL; p=p->next) { - if (p->protocol == prot) return((struct inet_protocol *) p); - } - return(NULL); -} - - -void -inet_add_protocol(struct inet_protocol *prot) -{ - unsigned char hash; - struct inet_protocol *p2; - - hash = prot->protocol & (MAX_INET_PROTOS - 1); - prot ->next = inet_protos[hash]; - inet_protos[hash] = prot; - prot->copy = 0; - - /* Set the copy bit if we need to. */ - p2 = (struct inet_protocol *) prot->next; - while(p2 != NULL) { - if (p2->protocol == prot->protocol) { - prot->copy = 1; - break; - } - p2 = (struct inet_protocol *) prot->next; - } -} - - -int -inet_del_protocol(struct inet_protocol *prot) -{ - struct inet_protocol *p; - struct inet_protocol *lp = NULL; - unsigned char hash; - - hash = prot->protocol & (MAX_INET_PROTOS - 1); - if (prot == inet_protos[hash]) { - inet_protos[hash] = (struct inet_protocol *) inet_protos[hash]->next; - return(0); - } - - p = (struct inet_protocol *) inet_protos[hash]; - while(p != NULL) { - /* - * We have to worry if the protocol being deleted is - * the last one on the list, then we may need to reset - * someone's copied bit. - */ - if (p->next != NULL && p->next == prot) { - /* - * if we are the last one with this protocol and - * there is a previous one, reset its copy bit. - */ - if (p->copy == 0 && lp != NULL) lp->copy = 0; - p->next = prot->next; - return(0); - } - - if (p->next != NULL && p->next->protocol == prot->protocol) { - lp = p; - } - - p = (struct inet_protocol *) p->next; - } - return(-1); -} |