diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 23:49:40 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 23:49:40 +0300 |
commit | 0191b625ca5a46206d2fb862bb08f36f2fcb3b31 (patch) | |
tree | 454d1842b1833d976da62abcbd5c47521ebe9bd7 /net/netfilter/ipvs/ip_vs_lblcr.c | |
parent | 54a696bd07c14d3b1192d03ce7269bc59b45209a (diff) | |
parent | eb56092fc168bf5af199d47af50c0d84a96db898 (diff) | |
download | linux-0191b625ca5a46206d2fb862bb08f36f2fcb3b31.tar.xz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1429 commits)
net: Allow dependancies of FDDI & Tokenring to be modular.
igb: Fix build warning when DCA is disabled.
net: Fix warning fallout from recent NAPI interface changes.
gro: Fix potential use after free
sfc: If AN is enabled, always read speed/duplex from the AN advertising bits
sfc: When disabling the NIC, close the device rather than unregistering it
sfc: SFT9001: Add cable diagnostics
sfc: Add support for multiple PHY self-tests
sfc: Merge top-level functions for self-tests
sfc: Clean up PHY mode management in loopback self-test
sfc: Fix unreliable link detection in some loopback modes
sfc: Generate unique names for per-NIC workqueues
802.3ad: use standard ethhdr instead of ad_header
802.3ad: generalize out mac address initializer
802.3ad: initialize ports LACPDU from const initializer
802.3ad: remove typedef around ad_system
802.3ad: turn ports is_individual into a bool
802.3ad: turn ports is_enabled into a bool
802.3ad: make ntt bool
ixgbe: Fix set_ringparam in ixgbe to use the same memory pools.
...
Fixed trivial IPv4/6 address printing conflicts in fs/cifs/connect.c due
to the conversion to %pI (in this networking merge) and the addition of
doing IPv6 addresses (from the earlier merge of CIFS).
Diffstat (limited to 'net/netfilter/ipvs/ip_vs_lblcr.c')
-rw-r--r-- | net/netfilter/ipvs/ip_vs_lblcr.c | 96 |
1 files changed, 53 insertions, 43 deletions
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c index 1f75ea83bcf8..92dc76a6842c 100644 --- a/net/netfilter/ipvs/ip_vs_lblcr.c +++ b/net/netfilter/ipvs/ip_vs_lblcr.c @@ -202,12 +202,13 @@ static inline struct ip_vs_dest *ip_vs_dest_set_min(struct ip_vs_dest_set *set) } } - IP_VS_DBG(6, "ip_vs_dest_set_min: server %d.%d.%d.%d:%d " - "activeconns %d refcnt %d weight %d overhead %d\n", - NIPQUAD(least->addr.ip), ntohs(least->port), - atomic_read(&least->activeconns), - atomic_read(&least->refcnt), - atomic_read(&least->weight), loh); + IP_VS_DBG_BUF(6, "ip_vs_dest_set_min: server %s:%d " + "activeconns %d refcnt %d weight %d overhead %d\n", + IP_VS_DBG_ADDR(least->af, &least->addr), + ntohs(least->port), + atomic_read(&least->activeconns), + atomic_read(&least->refcnt), + atomic_read(&least->weight), loh); return least; } @@ -248,12 +249,12 @@ static inline struct ip_vs_dest *ip_vs_dest_set_max(struct ip_vs_dest_set *set) } } - IP_VS_DBG(6, "ip_vs_dest_set_max: server %d.%d.%d.%d:%d " - "activeconns %d refcnt %d weight %d overhead %d\n", - NIPQUAD(most->addr.ip), ntohs(most->port), - atomic_read(&most->activeconns), - atomic_read(&most->refcnt), - atomic_read(&most->weight), moh); + IP_VS_DBG_BUF(6, "ip_vs_dest_set_max: server %s:%d " + "activeconns %d refcnt %d weight %d overhead %d\n", + IP_VS_DBG_ADDR(most->af, &most->addr), ntohs(most->port), + atomic_read(&most->activeconns), + atomic_read(&most->refcnt), + atomic_read(&most->weight), moh); return most; } @@ -264,7 +265,8 @@ static inline struct ip_vs_dest *ip_vs_dest_set_max(struct ip_vs_dest_set *set) */ struct ip_vs_lblcr_entry { struct list_head list; - __be32 addr; /* destination IP address */ + int af; /* address family */ + union nf_inet_addr addr; /* destination IP address */ struct ip_vs_dest_set set; /* destination server set */ unsigned long lastuse; /* last used time */ }; @@ -293,7 +295,7 @@ static ctl_table vs_vars_table[] = { .data = &sysctl_ip_vs_lblcr_expiration, .maxlen = sizeof(int), .mode = 0644, - .proc_handler = &proc_dointvec_jiffies, + .proc_handler = proc_dointvec_jiffies, }, { .ctl_name = 0 } }; @@ -311,9 +313,17 @@ static inline void ip_vs_lblcr_free(struct ip_vs_lblcr_entry *en) /* * Returns hash value for IPVS LBLCR entry */ -static inline unsigned ip_vs_lblcr_hashkey(__be32 addr) +static inline unsigned +ip_vs_lblcr_hashkey(int af, const union nf_inet_addr *addr) { - return (ntohl(addr)*2654435761UL) & IP_VS_LBLCR_TAB_MASK; + __be32 addr_fold = addr->ip; + +#ifdef CONFIG_IP_VS_IPV6 + if (af == AF_INET6) + addr_fold = addr->ip6[0]^addr->ip6[1]^ + addr->ip6[2]^addr->ip6[3]; +#endif + return (ntohl(addr_fold)*2654435761UL) & IP_VS_LBLCR_TAB_MASK; } @@ -324,7 +334,7 @@ static inline unsigned ip_vs_lblcr_hashkey(__be32 addr) static void ip_vs_lblcr_hash(struct ip_vs_lblcr_table *tbl, struct ip_vs_lblcr_entry *en) { - unsigned hash = ip_vs_lblcr_hashkey(en->addr); + unsigned hash = ip_vs_lblcr_hashkey(en->af, &en->addr); list_add(&en->list, &tbl->bucket[hash]); atomic_inc(&tbl->entries); @@ -336,13 +346,14 @@ ip_vs_lblcr_hash(struct ip_vs_lblcr_table *tbl, struct ip_vs_lblcr_entry *en) * read lock. */ static inline struct ip_vs_lblcr_entry * -ip_vs_lblcr_get(struct ip_vs_lblcr_table *tbl, __be32 addr) +ip_vs_lblcr_get(int af, struct ip_vs_lblcr_table *tbl, + const union nf_inet_addr *addr) { - unsigned hash = ip_vs_lblcr_hashkey(addr); + unsigned hash = ip_vs_lblcr_hashkey(af, addr); struct ip_vs_lblcr_entry *en; list_for_each_entry(en, &tbl->bucket[hash], list) - if (en->addr == addr) + if (ip_vs_addr_equal(af, &en->addr, addr)) return en; return NULL; @@ -354,12 +365,12 @@ ip_vs_lblcr_get(struct ip_vs_lblcr_table *tbl, __be32 addr) * IP address to a server. Called under write lock. */ static inline struct ip_vs_lblcr_entry * -ip_vs_lblcr_new(struct ip_vs_lblcr_table *tbl, __be32 daddr, +ip_vs_lblcr_new(struct ip_vs_lblcr_table *tbl, const union nf_inet_addr *daddr, struct ip_vs_dest *dest) { struct ip_vs_lblcr_entry *en; - en = ip_vs_lblcr_get(tbl, daddr); + en = ip_vs_lblcr_get(dest->af, tbl, daddr); if (!en) { en = kmalloc(sizeof(*en), GFP_ATOMIC); if (!en) { @@ -367,7 +378,8 @@ ip_vs_lblcr_new(struct ip_vs_lblcr_table *tbl, __be32 daddr, return NULL; } - en->addr = daddr; + en->af = dest->af; + ip_vs_addr_copy(dest->af, &en->addr, daddr); en->lastuse = jiffies; /* initilize its dest set */ @@ -544,7 +556,7 @@ static int ip_vs_lblcr_done_svc(struct ip_vs_service *svc) static inline struct ip_vs_dest * -__ip_vs_lblcr_schedule(struct ip_vs_service *svc, struct iphdr *iph) +__ip_vs_lblcr_schedule(struct ip_vs_service *svc) { struct ip_vs_dest *dest, *least; int loh, doh; @@ -596,12 +608,13 @@ __ip_vs_lblcr_schedule(struct ip_vs_service *svc, struct iphdr *iph) } } - IP_VS_DBG(6, "LBLCR: server %d.%d.%d.%d:%d " - "activeconns %d refcnt %d weight %d overhead %d\n", - NIPQUAD(least->addr.ip), ntohs(least->port), - atomic_read(&least->activeconns), - atomic_read(&least->refcnt), - atomic_read(&least->weight), loh); + IP_VS_DBG_BUF(6, "LBLCR: server %s:%d " + "activeconns %d refcnt %d weight %d overhead %d\n", + IP_VS_DBG_ADDR(least->af, &least->addr), + ntohs(least->port), + atomic_read(&least->activeconns), + atomic_read(&least->refcnt), + atomic_read(&least->weight), loh); return least; } @@ -635,15 +648,17 @@ static struct ip_vs_dest * ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb) { struct ip_vs_lblcr_table *tbl = svc->sched_data; - struct iphdr *iph = ip_hdr(skb); + struct ip_vs_iphdr iph; struct ip_vs_dest *dest = NULL; struct ip_vs_lblcr_entry *en; + ip_vs_fill_iphdr(svc->af, skb_network_header(skb), &iph); + IP_VS_DBG(6, "ip_vs_lblcr_schedule(): Scheduling...\n"); /* First look in our cache */ read_lock(&svc->sched_lock); - en = ip_vs_lblcr_get(tbl, iph->daddr); + en = ip_vs_lblcr_get(svc->af, tbl, &iph.daddr); if (en) { /* We only hold a read lock, but this is atomic */ en->lastuse = jiffies; @@ -673,7 +688,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb) } /* The cache entry is invalid, time to schedule */ - dest = __ip_vs_lblcr_schedule(svc, iph); + dest = __ip_vs_lblcr_schedule(svc); if (!dest) { IP_VS_DBG(1, "no destination available\n"); read_unlock(&svc->sched_lock); @@ -691,7 +706,7 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb) goto out; /* No cache entry, time to schedule */ - dest = __ip_vs_lblcr_schedule(svc, iph); + dest = __ip_vs_lblcr_schedule(svc); if (!dest) { IP_VS_DBG(1, "no destination available\n"); return NULL; @@ -699,15 +714,13 @@ ip_vs_lblcr_schedule(struct ip_vs_service *svc, const struct sk_buff *skb) /* If we fail to create a cache entry, we'll just use the valid dest */ write_lock(&svc->sched_lock); - ip_vs_lblcr_new(tbl, iph->daddr, dest); + ip_vs_lblcr_new(tbl, &iph.daddr, dest); write_unlock(&svc->sched_lock); out: - IP_VS_DBG(6, "LBLCR: destination IP address %u.%u.%u.%u " - "--> server %u.%u.%u.%u:%d\n", - NIPQUAD(iph->daddr), - NIPQUAD(dest->addr.ip), - ntohs(dest->port)); + IP_VS_DBG_BUF(6, "LBLCR: destination IP address %s --> server %s:%d\n", + IP_VS_DBG_ADDR(svc->af, &iph.daddr), + IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port)); return dest; } @@ -722,9 +735,6 @@ static struct ip_vs_scheduler ip_vs_lblcr_scheduler = .refcnt = ATOMIC_INIT(0), .module = THIS_MODULE, .n_list = LIST_HEAD_INIT(ip_vs_lblcr_scheduler.n_list), -#ifdef CONFIG_IP_VS_IPV6 - .supports_ipv6 = 0, -#endif .init_service = ip_vs_lblcr_init_svc, .done_service = ip_vs_lblcr_done_svc, .schedule = ip_vs_lblcr_schedule, |