diff options
Diffstat (limited to 'net/ipv4/ipvs/ip_vs_proto_icmp.c')
| -rw-r--r-- | net/ipv4/ipvs/ip_vs_proto_icmp.c | 182 |
1 files changed, 0 insertions, 182 deletions
diff --git a/net/ipv4/ipvs/ip_vs_proto_icmp.c b/net/ipv4/ipvs/ip_vs_proto_icmp.c deleted file mode 100644 index 191e94aa1c1f..000000000000 --- a/net/ipv4/ipvs/ip_vs_proto_icmp.c +++ /dev/null @@ -1,182 +0,0 @@ -/* - * ip_vs_proto_icmp.c: ICMP load balancing support for IP Virtual Server - * - * Authors: Julian Anastasov <ja@ssi.bg>, March 2002 - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * version 2 as published by the Free Software Foundation; - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/icmp.h> -#include <linux/netfilter.h> -#include <linux/netfilter_ipv4.h> - -#include <net/ip_vs.h> - - -static int icmp_timeouts[1] = { 1*60*HZ }; - -static char * icmp_state_name_table[1] = { "ICMP" }; - -static struct ip_vs_conn * -icmp_conn_in_get(const struct sk_buff *skb, - struct ip_vs_protocol *pp, - const struct iphdr *iph, - unsigned int proto_off, - int inverse) -{ -#if 0 - struct ip_vs_conn *cp; - - if (likely(!inverse)) { - cp = ip_vs_conn_in_get(iph->protocol, - iph->saddr, 0, - iph->daddr, 0); - } else { - cp = ip_vs_conn_in_get(iph->protocol, - iph->daddr, 0, - iph->saddr, 0); - } - - return cp; - -#else - return NULL; -#endif -} - -static struct ip_vs_conn * -icmp_conn_out_get(const struct sk_buff *skb, - struct ip_vs_protocol *pp, - const struct iphdr *iph, - unsigned int proto_off, - int inverse) -{ -#if 0 - struct ip_vs_conn *cp; - - if (likely(!inverse)) { - cp = ip_vs_conn_out_get(iph->protocol, - iph->saddr, 0, - iph->daddr, 0); - } else { - cp = ip_vs_conn_out_get(IPPROTO_UDP, - iph->daddr, 0, - iph->saddr, 0); - } - - return cp; -#else - return NULL; -#endif -} - -static int -icmp_conn_schedule(struct sk_buff *skb, struct ip_vs_protocol *pp, - int *verdict, struct ip_vs_conn **cpp) -{ - *verdict = NF_ACCEPT; - return 0; -} - -static int -icmp_csum_check(struct sk_buff *skb, struct ip_vs_protocol *pp) -{ - if (!(skb->nh.iph->frag_off & __constant_htons(IP_OFFSET))) { - if (skb->ip_summed != CHECKSUM_UNNECESSARY) { - if (ip_vs_checksum_complete(skb, skb->nh.iph->ihl * 4)) { - IP_VS_DBG_RL_PKT(0, pp, skb, 0, "Failed checksum for"); - return 0; - } - } - } - return 1; -} - -static void -icmp_debug_packet(struct ip_vs_protocol *pp, - const struct sk_buff *skb, - int offset, - const char *msg) -{ - char buf[256]; - struct iphdr _iph, *ih; - - ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph); - if (ih == NULL) - sprintf(buf, "%s TRUNCATED", pp->name); - else if (ih->frag_off & __constant_htons(IP_OFFSET)) - sprintf(buf, "%s %u.%u.%u.%u->%u.%u.%u.%u frag", - pp->name, NIPQUAD(ih->saddr), - NIPQUAD(ih->daddr)); - else { - struct icmphdr _icmph, *ic; - - ic = skb_header_pointer(skb, offset + ih->ihl*4, - sizeof(_icmph), &_icmph); - if (ic == NULL) - sprintf(buf, "%s TRUNCATED to %u bytes\n", - pp->name, skb->len - offset); - else - sprintf(buf, "%s %u.%u.%u.%u->%u.%u.%u.%u T:%d C:%d", - pp->name, NIPQUAD(ih->saddr), - NIPQUAD(ih->daddr), - ic->type, ic->code); - } - printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf); -} - -static int -icmp_state_transition(struct ip_vs_conn *cp, int direction, - const struct sk_buff *skb, - struct ip_vs_protocol *pp) -{ - cp->timeout = pp->timeout_table[IP_VS_ICMP_S_NORMAL]; - return 1; -} - -static int -icmp_set_state_timeout(struct ip_vs_protocol *pp, char *sname, int to) -{ - int num; - char **names; - - num = IP_VS_ICMP_S_LAST; - names = icmp_state_name_table; - return ip_vs_set_state_timeout(pp->timeout_table, num, names, sname, to); -} - - -static void icmp_init(struct ip_vs_protocol *pp) -{ - pp->timeout_table = icmp_timeouts; -} - -static void icmp_exit(struct ip_vs_protocol *pp) -{ -} - -struct ip_vs_protocol ip_vs_protocol_icmp = { - .name = "ICMP", - .protocol = IPPROTO_ICMP, - .dont_defrag = 0, - .init = icmp_init, - .exit = icmp_exit, - .conn_schedule = icmp_conn_schedule, - .conn_in_get = icmp_conn_in_get, - .conn_out_get = icmp_conn_out_get, - .snat_handler = NULL, - .dnat_handler = NULL, - .csum_check = icmp_csum_check, - .state_transition = icmp_state_transition, - .register_app = NULL, - .unregister_app = NULL, - .app_conn_bind = NULL, - .debug_packet = icmp_debug_packet, - .timeout_change = NULL, - .set_state_timeout = icmp_set_state_timeout, -}; |