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path: root/net/ipv4/netfilter/ipt_CLUSTERIP.c
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Diffstat (limited to 'net/ipv4/netfilter/ipt_CLUSTERIP.c')
-rw-r--r--net/ipv4/netfilter/ipt_CLUSTERIP.c77
1 files changed, 38 insertions, 39 deletions
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index ab828400ed7..f91c94b9a79 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -9,6 +9,7 @@
* published by the Free Software Foundation.
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/module.h>
#include <linux/proc_fs.h>
#include <linux/jhash.h>
@@ -88,7 +89,7 @@ clusterip_config_entry_put(struct clusterip_config *c)
list_del(&c->list);
write_unlock_bh(&clusterip_lock);
- dev_mc_delete(c->dev, c->clustermac, ETH_ALEN, 0);
+ dev_mc_del(c->dev, c->clustermac);
dev_put(c->dev);
/* In case anyone still accesses the file, the open/close
@@ -239,8 +240,7 @@ clusterip_hashfn(const struct sk_buff *skb,
break;
default:
if (net_ratelimit())
- printk(KERN_NOTICE "CLUSTERIP: unknown protocol `%u'\n",
- iph->protocol);
+ pr_info("unknown protocol %u\n", iph->protocol);
sport = dport = 0;
}
@@ -262,7 +262,7 @@ clusterip_hashfn(const struct sk_buff *skb,
hashval = 0;
/* This cannot happen, unless the check function wasn't called
* at rule load time */
- printk("CLUSTERIP: unknown mode `%u'\n", config->hash_mode);
+ pr_info("unknown mode %u\n", config->hash_mode);
BUG();
break;
}
@@ -282,7 +282,7 @@ clusterip_responsible(const struct clusterip_config *config, u_int32_t hash)
***********************************************************************/
static unsigned int
-clusterip_tg(struct sk_buff *skb, const struct xt_target_param *par)
+clusterip_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct ipt_clusterip_tgt_info *cipinfo = par->targinfo;
struct nf_conn *ct;
@@ -295,7 +295,7 @@ clusterip_tg(struct sk_buff *skb, const struct xt_target_param *par)
ct = nf_ct_get(skb, &ctinfo);
if (ct == NULL) {
- printk(KERN_ERR "CLUSTERIP: no conntrack!\n");
+ pr_info("no conntrack!\n");
/* FIXME: need to drop invalid ones, since replies
* to outgoing connections of other nodes will be
* marked as INVALID */
@@ -348,25 +348,24 @@ clusterip_tg(struct sk_buff *skb, const struct xt_target_param *par)
return XT_CONTINUE;
}
-static bool clusterip_tg_check(const struct xt_tgchk_param *par)
+static int clusterip_tg_check(const struct xt_tgchk_param *par)
{
struct ipt_clusterip_tgt_info *cipinfo = par->targinfo;
const struct ipt_entry *e = par->entryinfo;
-
struct clusterip_config *config;
+ int ret;
if (cipinfo->hash_mode != CLUSTERIP_HASHMODE_SIP &&
cipinfo->hash_mode != CLUSTERIP_HASHMODE_SIP_SPT &&
cipinfo->hash_mode != CLUSTERIP_HASHMODE_SIP_SPT_DPT) {
- printk(KERN_WARNING "CLUSTERIP: unknown mode `%u'\n",
- cipinfo->hash_mode);
- return false;
+ pr_info("unknown mode %u\n", cipinfo->hash_mode);
+ return -EINVAL;
}
if (e->ip.dmsk.s_addr != htonl(0xffffffff) ||
e->ip.dst.s_addr == 0) {
- printk(KERN_ERR "CLUSTERIP: Please specify destination IP\n");
- return false;
+ pr_info("Please specify destination IP\n");
+ return -EINVAL;
}
/* FIXME: further sanity checks */
@@ -374,41 +373,41 @@ static bool clusterip_tg_check(const struct xt_tgchk_param *par)
config = clusterip_config_find_get(e->ip.dst.s_addr, 1);
if (!config) {
if (!(cipinfo->flags & CLUSTERIP_FLAG_NEW)) {
- printk(KERN_WARNING "CLUSTERIP: no config found for %pI4, need 'new'\n", &e->ip.dst.s_addr);
- return false;
+ pr_info("no config found for %pI4, need 'new'\n",
+ &e->ip.dst.s_addr);
+ return -EINVAL;
} else {
struct net_device *dev;
if (e->ip.iniface[0] == '\0') {
- printk(KERN_WARNING "CLUSTERIP: Please specify an interface name\n");
- return false;
+ pr_info("Please specify an interface name\n");
+ return -EINVAL;
}
dev = dev_get_by_name(&init_net, e->ip.iniface);
if (!dev) {
- printk(KERN_WARNING "CLUSTERIP: no such interface %s\n", e->ip.iniface);
- return false;
+ pr_info("no such interface %s\n",
+ e->ip.iniface);
+ return -ENOENT;
}
config = clusterip_config_init(cipinfo,
e->ip.dst.s_addr, dev);
if (!config) {
- printk(KERN_WARNING "CLUSTERIP: cannot allocate config\n");
+ pr_info("cannot allocate config\n");
dev_put(dev);
- return false;
+ return -ENOMEM;
}
- dev_mc_add(config->dev,config->clustermac, ETH_ALEN, 0);
+ dev_mc_add(config->dev, config->clustermac);
}
}
cipinfo->config = config;
- if (nf_ct_l3proto_try_module_get(par->target->family) < 0) {
- printk(KERN_WARNING "can't load conntrack support for "
- "proto=%u\n", par->target->family);
- return false;
- }
-
- return true;
+ ret = nf_ct_l3proto_try_module_get(par->family);
+ if (ret < 0)
+ pr_info("cannot load conntrack support for proto=%u\n",
+ par->family);
+ return ret;
}
/* drop reference count of cluster config when rule is deleted */
@@ -422,7 +421,7 @@ static void clusterip_tg_destroy(const struct xt_tgdtor_param *par)
clusterip_config_put(cipinfo->config);
- nf_ct_l3proto_module_put(par->target->family);
+ nf_ct_l3proto_module_put(par->family);
}
#ifdef CONFIG_COMPAT
@@ -479,8 +478,8 @@ static void arp_print(struct arp_payload *payload)
}
hbuffer[--k]='\0';
- printk("src %pI4@%s, dst %pI4\n",
- &payload->src_ip, hbuffer, &payload->dst_ip);
+ pr_debug("src %pI4@%s, dst %pI4\n",
+ &payload->src_ip, hbuffer, &payload->dst_ip);
}
#endif
@@ -519,7 +518,7 @@ arp_mangle(unsigned int hook,
* this wouldn't work, since we didn't subscribe the mcast group on
* other interfaces */
if (c->dev != out) {
- pr_debug("CLUSTERIP: not mangling arp reply on different "
+ pr_debug("not mangling arp reply on different "
"interface: cip'%s'-skb'%s'\n",
c->dev->name, out->name);
clusterip_config_put(c);
@@ -530,7 +529,7 @@ arp_mangle(unsigned int hook,
memcpy(payload->src_hw, c->clustermac, arp->ar_hln);
#ifdef DEBUG
- pr_debug(KERN_DEBUG "CLUSTERIP mangled arp reply: ");
+ pr_debug("mangled arp reply: ");
arp_print(payload);
#endif
@@ -601,7 +600,8 @@ static void *clusterip_seq_next(struct seq_file *s, void *v, loff_t *pos)
static void clusterip_seq_stop(struct seq_file *s, void *v)
{
- kfree(v);
+ if (!IS_ERR(v))
+ kfree(v);
}
static int clusterip_seq_show(struct seq_file *s, void *v)
@@ -706,13 +706,13 @@ static int __init clusterip_tg_init(void)
#ifdef CONFIG_PROC_FS
clusterip_procdir = proc_mkdir("ipt_CLUSTERIP", init_net.proc_net);
if (!clusterip_procdir) {
- printk(KERN_ERR "CLUSTERIP: Unable to proc dir entry\n");
+ pr_err("Unable to proc dir entry\n");
ret = -ENOMEM;
goto cleanup_hook;
}
#endif /* CONFIG_PROC_FS */
- printk(KERN_NOTICE "ClusterIP Version %s loaded successfully\n",
+ pr_info("ClusterIP Version %s loaded successfully\n",
CLUSTERIP_VERSION);
return 0;
@@ -727,8 +727,7 @@ cleanup_target:
static void __exit clusterip_tg_exit(void)
{
- printk(KERN_NOTICE "ClusterIP Version %s unloading\n",
- CLUSTERIP_VERSION);
+ pr_info("ClusterIP Version %s unloading\n", CLUSTERIP_VERSION);
#ifdef CONFIG_PROC_FS
remove_proc_entry(clusterip_procdir->name, clusterip_procdir->parent);
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-29 20:35:33 +0000