support linux 5.0

Author: boyu

README.md

@@ -4,7 +4,7 @@ get ip vs(fullnat) client addr
 
 由taobao/toa修改，可作为独立模块编译安装, 支持tcp/udp
 
-支持 centos6.6(linux 2.6.32-220) / centos7.2(linux 3.10.0-237.4.5) / ubuntu14.04(linux 3.13.0-77-generic) / ubuntu16.04(linux 4.4.0-64-generic) / centos7.2(linux 4.9.2-1.el7)
+支持 centos6.6(linux 2.6.32-220) / centos7.2(linux 3.10.0-237.4.5) / ubuntu14.04(linux 3.13.0-77-generic) / ubuntu16.04(linux 4.4.0-64-generic) / centos7.2(linux 4.9.2-1.el7) / ubuntu19.04 (5.0.0-25-generic)
 
 对应内核在[github.com/yubo/LVS](https://github.com/yubo/LVS/tree/lvs_v2),兼容[taobao/LVS(lvs_v2)](https://github.com/alibaba/LVS/tree/lvs_v2)
 
@@ -23,6 +23,8 @@ get ip vs(fullnat) client addr
   - [x] Support centos 7.2 rpmbuild
   - [x] Support ubuntu 14.04(trusty) dpkg
   - [x] Support ubuntu 16.04.2(xenial) dpkg
+  - [x] Support ubuntu 19.04(disco) dpkg (untested)
+  - [x] Linux (2.6.32 - 5.0.0)
 
 ## Demo
 

src/ca_conn.c

@@ -191,9 +191,15 @@ ip_vs_ca_conn_unhash(struct ip_vs_ca_conn *cp)
 	return ret;
 }
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0) 
+static void ip_vs_ca_conn_expire(struct timer_list *t)
+{
+	struct ip_vs_ca_conn *cp = from_timer(cp, t, timer);
+#else
 static void ip_vs_ca_conn_expire(unsigned long data)
 {
 	struct ip_vs_ca_conn *cp = (struct ip_vs_ca_conn *)data;
+#endif
 
 	/*
 	 * Set proper timeout.
@@ -260,7 +266,11 @@ struct ip_vs_ca_conn *ip_vs_ca_conn_new(int af,
 
 	/* now init connection */
 	IP_VS_CA_DBG("setup_timer, %p\n", &cp->timer);
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,15,0) 
+	timer_setup(&cp->timer, ip_vs_ca_conn_expire, 0);
+#else
 	setup_timer(&cp->timer, ip_vs_ca_conn_expire, (unsigned long)cp);
+#endif
 	cp->af = af;
 	cp->protocol = pp->protocol;
 	//ip_vs_ca_addr_copy(af, &cp->saddr, saddr);

src/ca_core.c

@@ -303,24 +303,25 @@ static void ip_vs_ca_syscall_cleanup(void)
 
 static unsigned int _ip_vs_ca_in_hook(struct sk_buff *skb);
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0)
+static unsigned int
+ip_vs_ca_in_hook(void *priv, struct sk_buff *skb,
+		      const struct nf_hook_state *state)
+#elif LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
 static unsigned int
 ip_vs_ca_in_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 			const struct net_device *in,
 			const struct net_device *out,
 			const void *ignore)
-{
-	return _ip_vs_ca_in_hook(skb);
-}
 #else
-static unsigned int
 ip_vs_ca_in_hook(unsigned int hooknum, struct sk_buff *skb,
 		const struct net_device *in, const struct net_device *out,
 		int (*okfn) (struct sk_buff *))
+#endif
 {
 	return _ip_vs_ca_in_hook(skb);
 }
-#endif
 
 static unsigned int _ip_vs_ca_in_hook(struct sk_buff *skb)
 {
@@ -496,7 +497,11 @@ static int __init ip_vs_ca_init(void)
 	}
 	IP_VS_CA_DBG("ip_vs_ca_conn_init done.\n");
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) 
+	ret = nf_register_net_hooks(NULL, ip_vs_ca_ops, ARRAY_SIZE(ip_vs_ca_ops));
+#else
 	ret = nf_register_hooks(ip_vs_ca_ops, ARRAY_SIZE(ip_vs_ca_ops));
+#endif
 	if (ret < 0){
 		IP_VS_CA_ERR("can't register hooks.\n");
 		goto cleanup_conn;
@@ -518,7 +523,11 @@ static int __init ip_vs_ca_init(void)
 
 static void __exit ip_vs_ca_exit(void)
 {
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,12,0) 
+	nf_unregister_net_hooks(NULL, ip_vs_ca_ops, ARRAY_SIZE(ip_vs_ca_ops));
+#else
 	nf_unregister_hooks(ip_vs_ca_ops, ARRAY_SIZE(ip_vs_ca_ops));
+#endif
 	ip_vs_ca_conn_cleanup();
 	ip_vs_ca_protocol_cleanup();
 	ip_vs_ca_control_cleanup();

src/utils.c

@@ -8,6 +8,10 @@
 #include <linux/syscalls.h>
 #include "ca.h"
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4,17,0) 
+#define sys_close ksys_close
+#endif
+
 unsigned long **find_sys_call_table(void) {
 
 	unsigned long ptr;