[PATCH 3/5] [NET]: Protocol Independant Policy Routing Rules Framework
Derived from net/ipv/fib_rules.c
Signed-off-by: Thomas Graf [EMAIL PROTECTED]
Index: net-2.6.19/include/linux/fib_rules.h
===
--- /dev/null
+++ net-2.6.19/include/linux/fib_rules.h
@@ -0,0 +1,60 @@
+#ifndef __LINUX_FIB_RULES_H
+#define __LINUX_FIB_RULES_H
+
+#include linux/types.h
+#include linux/rtnetlink.h
+
+/* rule is permanent, and cannot be deleted */
+#define FIB_RULE_PERMANENT 1
+
+struct fib_rule_hdr
+{
+ __u8family;
+ __u8dst_len;
+ __u8src_len;
+ __u8tos;
+
+ __u8table;
+ __u8res1; /* reserved */
+ __u8res2; /* reserved */
+ __u8action;
+
+ __u32 flags;
+};
+
+enum
+{
+ FRA_UNSPEC,
+ FRA_DST,/* destination address */
+ FRA_SRC,/* source address */
+ FRA_IFNAME, /* interface name */
+ FRA_UNUSED1,
+ FRA_UNUSED2,
+ FRA_PRIORITY, /* priority/preference */
+ FRA_UNUSED3,
+ FRA_UNUSED4,
+ FRA_UNUSED5,
+ FRA_FWMARK, /* netfilter mark (IPv4) */
+ FRA_FLOW, /* flow/class id */
+ __FRA_MAX
+};
+
+#define FRA_MAX (__FRA_MAX - 1)
+
+enum
+{
+ FR_ACT_UNSPEC,
+ FR_ACT_TO_TBL, /* Pass to fixed table */
+ FR_ACT_RES1,
+ FR_ACT_RES2,
+ FR_ACT_RES3,
+ FR_ACT_RES4,
+ FR_ACT_BLACKHOLE, /* Drop without notification */
+ FR_ACT_UNREACHABLE, /* Drop with ENETUNREACH */
+ FR_ACT_PROHIBIT,/* Drop with EACCES */
+ __FR_ACT_MAX,
+};
+
+#define FR_ACT_MAX (__FR_ACT_MAX - 1)
+
+#endif
Index: net-2.6.19/include/net/fib_rules.h
===
--- /dev/null
+++ net-2.6.19/include/net/fib_rules.h
@@ -0,0 +1,90 @@
+#ifndef __NET_FIB_RULES_H
+#define __NET_FIB_RULES_H
+
+#include linux/types.h
+#include linux/netdevice.h
+#include linux/fib_rules.h
+#include net/flow.h
+#include net/netlink.h
+
+struct fib_rule
+{
+ struct list_headlist;
+ atomic_trefcnt;
+ int ifindex;
+ charifname[IFNAMSIZ];
+ u32 pref;
+ u32 flags;
+ u32 table;
+ u8 action;
+ struct rcu_head rcu;
+};
+
+struct fib_lookup_arg
+{
+ void*lookup_ptr;
+ void*result;
+ struct fib_rule *rule;
+};
+
+struct fib_rules_ops
+{
+ int family;
+ struct list_headlist;
+ int rule_size;
+
+ int (*action)(struct fib_rule *,
+ struct flowi *, int,
+ struct fib_lookup_arg *);
+ int (*match)(struct fib_rule *,
+struct flowi *, int);
+ int (*configure)(struct fib_rule *,
+struct sk_buff *,
+struct nlmsghdr *,
+struct fib_rule_hdr *,
+struct nlattr **);
+ int (*compare)(struct fib_rule *,
+ struct fib_rule_hdr *,
+ struct nlattr **);
+ int (*fill)(struct fib_rule *, struct sk_buff *,
+ struct nlmsghdr *,
+ struct fib_rule_hdr *);
+ u32 (*default_pref)(void);
+
+ int nlgroup;
+ struct nla_policy *policy;
+ struct list_head*rules_list;
+ struct module *owner;
+};
+
+static inline void fib_rule_get(struct fib_rule *rule)
+{
+ atomic_inc(rule-refcnt);
+}
+
+static inline void fib_rule_put_rcu(struct rcu_head *head)
+{
+ struct fib_rule *rule = container_of(head, struct fib_rule, rcu);
+ kfree(rule);
+}
+
+static inline void fib_rule_put(struct fib_rule *rule)
+{
+ if (atomic_dec_and_test(rule-refcnt))
+ call_rcu(rule-rcu, fib_rule_put_rcu);
+}
+
+extern int fib_rules_register(struct fib_rules_ops *);
+extern int fib_rules_unregister(struct fib_rules_ops *);
+
+extern int fib_rules_lookup(struct fib_rules_ops *,
+struct flowi *, int flags,
+struct fib_lookup_arg *);
+
+extern int fib_nl_newrule(struct sk_buff *,
+ struct nlmsghdr *, void *);
+extern int
Re: [PATCH 3/5] [NET]: Protocol Independant Policy Routing Rules Framework
On Thu, 27 Jul 2006, Thomas Graf wrote:
+ rule = kmalloc(ops-rule_size, GFP_KERNEL);
+ if (rule == NULL) {
+ err = -ENOMEM;
+ goto errout;
+ }
+ memset(rule, 0, ops-rule_size);
+
kzalloc() ? :-)
- James
--
James Morris
[EMAIL PROTECTED]
-
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the body of a message to [EMAIL PROTECTED]
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[PATCH 3/5] [NET]: Protocol Independant Policy Routing Rules Framework
Derived from net/ipv6/fib_rules.c
Signed-off-by: Thomas Graf [EMAIL PROTECTED]
Index: net-2.6.git/include/linux/fib_rules.h
===
--- /dev/null
+++ net-2.6.git/include/linux/fib_rules.h
@@ -0,0 +1,60 @@
+#ifndef __LINUX_FIB_RULES_H
+#define __LINUX_FIB_RULES_H
+
+#include linux/types.h
+#include linux/rtnetlink.h
+
+/* rule is permanent, and cannot be deleted */
+#define FIB_RULE_PERMANENT 1
+
+struct fib_rule_hdr
+{
+ __u8family;
+ __u8dst_len;
+ __u8src_len;
+ __u8tos;
+
+ __u8table;
+ __u8res1; /* reserved */
+ __u8res2; /* reserved */
+ __u8action;
+
+ __u32 flags;
+};
+
+enum
+{
+ FRA_UNSPEC,
+ FRA_DST,/* destination address */
+ FRA_SRC,/* source address */
+ FRA_IFNAME, /* interface name */
+ FRA_UNUSED1,
+ FRA_UNUSED2,
+ FRA_PRIORITY, /* priority/preference */
+ FRA_UNUSED3,
+ FRA_UNUSED4,
+ FRA_UNUSED5,
+ FRA_FWMARK, /* netfilter mark (IPv4) */
+ FRA_FLOW, /* flow/class id */
+ __FRA_MAX
+};
+
+#define FRA_MAX (__FRA_MAX - 1)
+
+enum
+{
+ FR_ACT_UNSPEC,
+ FR_ACT_TO_TBL, /* Pass to fixed table */
+ FR_ACT_RES1,
+ FR_ACT_RES2,
+ FR_ACT_RES3,
+ FR_ACT_RES4,
+ FR_ACT_BLACKHOLE, /* Drop without notification */
+ FR_ACT_UNREACHABLE, /* Drop with ENETUNREACH */
+ FR_ACT_PROHIBIT,/* Drop with EACCES */
+ __FR_ACT_MAX,
+};
+
+#define FR_ACT_MAX (__FR_ACT_MAX - 1)
+
+#endif
Index: net-2.6.git/include/net/fib_rules.h
===
--- /dev/null
+++ net-2.6.git/include/net/fib_rules.h
@@ -0,0 +1,89 @@
+#ifndef __NET_FIB_RULES_H
+#define __NET_FIB_RULES_H
+
+#include linux/types.h
+#include linux/netdevice.h
+#include linux/fib_rules.h
+#include net/flow.h
+#include net/netlink.h
+
+struct fib_rule
+{
+ struct list_headlist;
+ atomic_trefcnt;
+ int ifindex;
+ charifname[IFNAMSIZ];
+ u32 pref;
+ u32 flags;
+ u32 table;
+ u8 action;
+ struct rcu_head rcu;
+};
+
+struct fib_lookup_arg
+{
+ void*lookup_ptr;
+ void*result;
+ struct fib_rule *rule;
+};
+
+struct fib_rules_ops
+{
+ int family;
+ struct list_headlist;
+ int rule_size;
+
+ int (*action)(struct fib_rule *,
+ struct flowi *, int,
+ struct fib_lookup_arg *);
+ int (*match)(struct fib_rule *,
+struct flowi *, int);
+ int (*configure)(struct fib_rule *,
+struct sk_buff *,
+struct nlmsghdr *,
+struct fib_rule_hdr *,
+struct nlattr **);
+ int (*compare)(struct fib_rule *,
+ struct fib_rule_hdr *,
+ struct nlattr **);
+ int (*fill)(struct fib_rule *, struct sk_buff *,
+ struct nlmsghdr *,
+ struct fib_rule_hdr *);
+ u32 (*default_pref)(void);
+
+ struct nla_policy *policy;
+ struct list_head*rules_list;
+ struct module *owner;
+};
+
+static inline void fib_rule_get(struct fib_rule *rule)
+{
+ atomic_inc(rule-refcnt);
+}
+
+static inline void fib_rule_put_rcu(struct rcu_head *head)
+{
+ struct fib_rule *rule = container_of(head, struct fib_rule, rcu);
+ kfree(rule);
+}
+
+static inline void fib_rule_put(struct fib_rule *rule)
+{
+ if (atomic_dec_and_test(rule-refcnt))
+ call_rcu(rule-rcu, fib_rule_put_rcu);
+}
+
+extern int fib_rules_register(struct fib_rules_ops *);
+extern int fib_rules_unregister(struct fib_rules_ops *);
+
+extern int fib_rules_lookup(struct fib_rules_ops *,
+struct flowi *, int flags,
+struct fib_lookup_arg *);
+
+extern int fib_nl_newrule(struct sk_buff *,
+ struct nlmsghdr *, void *);
+extern int fib_nl_delrule(struct
Re: [PATCH 3/5] [NET]: Protocol Independant Policy Routing Rules Framework
From: Thomas Graf [EMAIL PROTECTED] Date: Thu, 27 Jul 2006 00:00:03 +0200 Derived from net/ipv6/fib_rules.c Signed-off-by: Thomas Graf [EMAIL PROTECTED] A very nice abstraction, looks great. Signed-off-by: David S. Miller [EMAIL PROTECTED] - To unsubscribe from this list: send the line unsubscribe netdev in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
