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Diffstat (limited to 'net/ipv4/ipvs/ip_vs_proto.c')
-rw-r--r--net/ipv4/ipvs/ip_vs_proto.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/net/ipv4/ipvs/ip_vs_proto.c b/net/ipv4/ipvs/ip_vs_proto.c
deleted file mode 100644
index 0791f9e08fe..00000000000
--- a/net/ipv4/ipvs/ip_vs_proto.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * ip_vs_proto.c: transport protocol load balancing support for IPVS
- *
- * Authors: Wensong Zhang <wensong@linuxvirtualserver.org>
- * Julian Anastasov <ja@ssi.bg>
- *
- * 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.
- *
- * Changes:
- *
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/skbuff.h>
-#include <linux/in.h>
-#include <linux/ip.h>
-#include <net/protocol.h>
-#include <net/tcp.h>
-#include <net/udp.h>
-#include <asm/system.h>
-#include <linux/stat.h>
-#include <linux/proc_fs.h>
-
-#include <net/ip_vs.h>
-
-
-/*
- * IPVS protocols can only be registered/unregistered when the ipvs
- * module is loaded/unloaded, so no lock is needed in accessing the
- * ipvs protocol table.
- */
-
-#define IP_VS_PROTO_TAB_SIZE 32 /* must be power of 2 */
-#define IP_VS_PROTO_HASH(proto) ((proto) & (IP_VS_PROTO_TAB_SIZE-1))
-
-static struct ip_vs_protocol *ip_vs_proto_table[IP_VS_PROTO_TAB_SIZE];
-
-
-/*
- * register an ipvs protocol
- */
-static int __used __init register_ip_vs_protocol(struct ip_vs_protocol *pp)
-{
- unsigned hash = IP_VS_PROTO_HASH(pp->protocol);
-
- pp->next = ip_vs_proto_table[hash];
- ip_vs_proto_table[hash] = pp;
-
- if (pp->init != NULL)
- pp->init(pp);
-
- return 0;
-}
-
-
-/*
- * unregister an ipvs protocol
- */
-static int unregister_ip_vs_protocol(struct ip_vs_protocol *pp)
-{
- struct ip_vs_protocol **pp_p;
- unsigned hash = IP_VS_PROTO_HASH(pp->protocol);
-
- pp_p = &ip_vs_proto_table[hash];
- for (; *pp_p; pp_p = &(*pp_p)->next) {
- if (*pp_p == pp) {
- *pp_p = pp->next;
- if (pp->exit != NULL)
- pp->exit(pp);
- return 0;
- }
- }
-
- return -ESRCH;
-}
-
-
-/*
- * get ip_vs_protocol object by its proto.
- */
-struct ip_vs_protocol * ip_vs_proto_get(unsigned short proto)
-{
- struct ip_vs_protocol *pp;
- unsigned hash = IP_VS_PROTO_HASH(proto);
-
- for (pp = ip_vs_proto_table[hash]; pp; pp = pp->next) {
- if (pp->protocol == proto)
- return pp;
- }
-
- return NULL;
-}
-
-
-/*
- * Propagate event for state change to all protocols
- */
-void ip_vs_protocol_timeout_change(int flags)
-{
- struct ip_vs_protocol *pp;
- int i;
-
- for (i = 0; i < IP_VS_PROTO_TAB_SIZE; i++) {
- for (pp = ip_vs_proto_table[i]; pp; pp = pp->next) {
- if (pp->timeout_change)
- pp->timeout_change(pp, flags);
- }
- }
-}
-
-
-int *
-ip_vs_create_timeout_table(int *table, int size)
-{
- return kmemdup(table, size, GFP_ATOMIC);
-}
-
-
-/*
- * Set timeout value for state specified by name
- */
-int
-ip_vs_set_state_timeout(int *table, int num, char **names, char *name, int to)
-{
- int i;
-
- if (!table || !name || !to)
- return -EINVAL;
-
- for (i = 0; i < num; i++) {
- if (strcmp(names[i], name))
- continue;
- table[i] = to * HZ;
- return 0;
- }
- return -ENOENT;
-}
-
-
-const char * ip_vs_state_name(__u16 proto, int state)
-{
- struct ip_vs_protocol *pp = ip_vs_proto_get(proto);
-
- if (pp == NULL || pp->state_name == NULL)
- return (IPPROTO_IP == proto) ? "NONE" : "ERR!";
- return pp->state_name(state);
-}
-
-
-static void
-ip_vs_tcpudp_debug_packet_v4(struct ip_vs_protocol *pp,
- const struct sk_buff *skb,
- int offset,
- const char *msg)
-{
- char buf[128];
- 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 & htons(IP_OFFSET))
- sprintf(buf, "%s %u.%u.%u.%u->%u.%u.%u.%u frag",
- pp->name, NIPQUAD(ih->saddr),
- NIPQUAD(ih->daddr));
- else {
- __be16 _ports[2], *pptr
-;
- pptr = skb_header_pointer(skb, offset + ih->ihl*4,
- sizeof(_ports), _ports);
- if (pptr == NULL)
- sprintf(buf, "%s TRUNCATED %u.%u.%u.%u->%u.%u.%u.%u",
- pp->name,
- NIPQUAD(ih->saddr),
- NIPQUAD(ih->daddr));
- else
- sprintf(buf, "%s %u.%u.%u.%u:%u->%u.%u.%u.%u:%u",
- pp->name,
- NIPQUAD(ih->saddr),
- ntohs(pptr[0]),
- NIPQUAD(ih->daddr),
- ntohs(pptr[1]));
- }
-
- printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
-}
-
-#ifdef CONFIG_IP_VS_IPV6
-static void
-ip_vs_tcpudp_debug_packet_v6(struct ip_vs_protocol *pp,
- const struct sk_buff *skb,
- int offset,
- const char *msg)
-{
- char buf[192];
- struct ipv6hdr _iph, *ih;
-
- ih = skb_header_pointer(skb, offset, sizeof(_iph), &_iph);
- if (ih == NULL)
- sprintf(buf, "%s TRUNCATED", pp->name);
- else if (ih->nexthdr == IPPROTO_FRAGMENT)
- sprintf(buf, "%s " NIP6_FMT "->" NIP6_FMT " frag",
- pp->name, NIP6(ih->saddr),
- NIP6(ih->daddr));
- else {
- __be16 _ports[2], *pptr;
-
- pptr = skb_header_pointer(skb, offset + sizeof(struct ipv6hdr),
- sizeof(_ports), _ports);
- if (pptr == NULL)
- sprintf(buf, "%s TRUNCATED " NIP6_FMT "->" NIP6_FMT,
- pp->name,
- NIP6(ih->saddr),
- NIP6(ih->daddr));
- else
- sprintf(buf, "%s " NIP6_FMT ":%u->" NIP6_FMT ":%u",
- pp->name,
- NIP6(ih->saddr),
- ntohs(pptr[0]),
- NIP6(ih->daddr),
- ntohs(pptr[1]));
- }
-
- printk(KERN_DEBUG "IPVS: %s: %s\n", msg, buf);
-}
-#endif
-
-
-void
-ip_vs_tcpudp_debug_packet(struct ip_vs_protocol *pp,
- const struct sk_buff *skb,
- int offset,
- const char *msg)
-{
-#ifdef CONFIG_IP_VS_IPV6
- if (skb->protocol == htons(ETH_P_IPV6))
- ip_vs_tcpudp_debug_packet_v6(pp, skb, offset, msg);
- else
-#endif
- ip_vs_tcpudp_debug_packet_v4(pp, skb, offset, msg);
-}
-
-
-int __init ip_vs_protocol_init(void)
-{
- char protocols[64];
-#define REGISTER_PROTOCOL(p) \
- do { \
- register_ip_vs_protocol(p); \
- strcat(protocols, ", "); \
- strcat(protocols, (p)->name); \
- } while (0)
-
- protocols[0] = '\0';
- protocols[2] = '\0';
-#ifdef CONFIG_IP_VS_PROTO_TCP
- REGISTER_PROTOCOL(&ip_vs_protocol_tcp);
-#endif
-#ifdef CONFIG_IP_VS_PROTO_UDP
- REGISTER_PROTOCOL(&ip_vs_protocol_udp);
-#endif
-#ifdef CONFIG_IP_VS_PROTO_AH
- REGISTER_PROTOCOL(&ip_vs_protocol_ah);
-#endif
-#ifdef CONFIG_IP_VS_PROTO_ESP
- REGISTER_PROTOCOL(&ip_vs_protocol_esp);
-#endif
- IP_VS_INFO("Registered protocols (%s)\n", &protocols[2]);
-
- return 0;
-}
-
-
-void ip_vs_protocol_cleanup(void)
-{
- struct ip_vs_protocol *pp;
- int i;
-
- /* unregister all the ipvs protocols */
- for (i = 0; i < IP_VS_PROTO_TAB_SIZE; i++) {
- while ((pp = ip_vs_proto_table[i]) != NULL)
- unregister_ip_vs_protocol(pp);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-23 00:19:11 +0000