c4ea94ab37
The typedef for dn_address has been removed in favour of using __le16 or __u16 directly as appropriate. All the DECnet header files are updated accordingly. The byte ordering of dn_eth2dn() and dn_dn2eth() are both changed since just about all their callers wanted network order rather than host order, so the conversion is now done in the functions themselves. Several missed endianess conversions have been picked up during the conversion process. The nh_gw field in struct dn_fib_info has been changed from a 32 bit field to 16 bits as it ought to be. One or two cases of using htons rather than dn_htons in the routing code have been found and fixed. There are still a few warnings to fix, but this patch deals with the important cases. Signed-off-by: Steven Whitehouse <steve@chygwyn.com> Signed-off-by: Patrick Caulfield <patrick@tykepenguin.com> Signed-off-by: David S. Miller <davem@davemloft.net>
204 lines
5.5 KiB
C
204 lines
5.5 KiB
C
#ifndef _NET_DN_FIB_H
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#define _NET_DN_FIB_H
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/* WARNING: The ordering of these elements must match ordering
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* of RTA_* rtnetlink attribute numbers.
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*/
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struct dn_kern_rta
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{
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void *rta_dst;
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void *rta_src;
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int *rta_iif;
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int *rta_oif;
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void *rta_gw;
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u32 *rta_priority;
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void *rta_prefsrc;
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struct rtattr *rta_mx;
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struct rtattr *rta_mp;
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unsigned char *rta_protoinfo;
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u32 *rta_flow;
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struct rta_cacheinfo *rta_ci;
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struct rta_session *rta_sess;
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};
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struct dn_fib_res {
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struct dn_fib_rule *r;
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struct dn_fib_info *fi;
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unsigned char prefixlen;
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unsigned char nh_sel;
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unsigned char type;
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unsigned char scope;
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};
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struct dn_fib_nh {
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struct net_device *nh_dev;
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unsigned nh_flags;
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unsigned char nh_scope;
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int nh_weight;
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int nh_power;
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int nh_oif;
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__le16 nh_gw;
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};
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struct dn_fib_info {
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struct dn_fib_info *fib_next;
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struct dn_fib_info *fib_prev;
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int fib_treeref;
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atomic_t fib_clntref;
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int fib_dead;
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unsigned fib_flags;
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int fib_protocol;
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__le16 fib_prefsrc;
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__u32 fib_priority;
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__u32 fib_metrics[RTAX_MAX];
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#define dn_fib_mtu fib_metrics[RTAX_MTU-1]
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#define dn_fib_window fib_metrics[RTAX_WINDOW-1]
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#define dn_fib_rtt fib_metrics[RTAX_RTT-1]
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#define dn_fib_advmss fib_metrics[RTAX_ADVMSS-1]
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int fib_nhs;
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int fib_power;
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struct dn_fib_nh fib_nh[0];
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#define dn_fib_dev fib_nh[0].nh_dev
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};
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#define DN_FIB_RES_RESET(res) ((res).nh_sel = 0)
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#define DN_FIB_RES_NH(res) ((res).fi->fib_nh[(res).nh_sel])
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#define DN_FIB_RES_PREFSRC(res) ((res).fi->fib_prefsrc ? : __dn_fib_res_prefsrc(&res))
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#define DN_FIB_RES_GW(res) (DN_FIB_RES_NH(res).nh_gw)
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#define DN_FIB_RES_DEV(res) (DN_FIB_RES_NH(res).nh_dev)
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#define DN_FIB_RES_OIF(res) (DN_FIB_RES_NH(res).nh_oif)
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typedef struct {
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__le16 datum;
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} dn_fib_key_t;
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typedef struct {
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__le16 datum;
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} dn_fib_hash_t;
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typedef struct {
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__u16 datum;
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} dn_fib_idx_t;
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struct dn_fib_node {
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struct dn_fib_node *fn_next;
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struct dn_fib_info *fn_info;
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#define DN_FIB_INFO(f) ((f)->fn_info)
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dn_fib_key_t fn_key;
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u8 fn_type;
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u8 fn_scope;
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u8 fn_state;
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};
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struct dn_fib_table {
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int n;
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int (*insert)(struct dn_fib_table *t, struct rtmsg *r,
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struct dn_kern_rta *rta, struct nlmsghdr *n,
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struct netlink_skb_parms *req);
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int (*delete)(struct dn_fib_table *t, struct rtmsg *r,
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struct dn_kern_rta *rta, struct nlmsghdr *n,
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struct netlink_skb_parms *req);
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int (*lookup)(struct dn_fib_table *t, const struct flowi *fl,
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struct dn_fib_res *res);
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int (*flush)(struct dn_fib_table *t);
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int (*dump)(struct dn_fib_table *t, struct sk_buff *skb, struct netlink_callback *cb);
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unsigned char data[0];
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};
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#ifdef CONFIG_DECNET_ROUTER
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/*
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* dn_fib.c
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*/
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extern void dn_fib_init(void);
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extern void dn_fib_cleanup(void);
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extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd,
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unsigned long arg);
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extern struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r,
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struct dn_kern_rta *rta,
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const struct nlmsghdr *nlh, int *errp);
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extern int dn_fib_semantic_match(int type, struct dn_fib_info *fi,
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const struct flowi *fl,
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struct dn_fib_res *res);
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extern void dn_fib_release_info(struct dn_fib_info *fi);
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extern __le16 dn_fib_get_attr16(struct rtattr *attr, int attrlen, int type);
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extern void dn_fib_flush(void);
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extern void dn_fib_select_multipath(const struct flowi *fl,
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struct dn_fib_res *res);
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extern int dn_fib_sync_down(__le16 local, struct net_device *dev,
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int force);
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extern int dn_fib_sync_up(struct net_device *dev);
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/*
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* dn_tables.c
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*/
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extern struct dn_fib_table *dn_fib_get_table(int n, int creat);
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extern struct dn_fib_table *dn_fib_empty_table(void);
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extern void dn_fib_table_init(void);
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extern void dn_fib_table_cleanup(void);
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/*
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* dn_rules.c
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*/
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extern void dn_fib_rules_init(void);
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extern void dn_fib_rules_cleanup(void);
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extern void dn_fib_rule_put(struct dn_fib_rule *);
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extern __le16 dn_fib_rules_policy(__le16 saddr, struct dn_fib_res *res, unsigned *flags);
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extern unsigned dnet_addr_type(__le16 addr);
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extern int dn_fib_lookup(const struct flowi *fl, struct dn_fib_res *res);
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/*
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* rtnetlink interface
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*/
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extern int dn_fib_rtm_delroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
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extern int dn_fib_rtm_newroute(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
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extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
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extern int dn_fib_rtm_delrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
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extern int dn_fib_rtm_newrule(struct sk_buff *skb, struct nlmsghdr *nlh, void *arg);
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extern int dn_fib_dump_rules(struct sk_buff *skb, struct netlink_callback *cb);
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extern void dn_fib_free_info(struct dn_fib_info *fi);
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static inline void dn_fib_info_put(struct dn_fib_info *fi)
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{
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if (atomic_dec_and_test(&fi->fib_clntref))
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dn_fib_free_info(fi);
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}
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static inline void dn_fib_res_put(struct dn_fib_res *res)
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{
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if (res->fi)
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dn_fib_info_put(res->fi);
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if (res->r)
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dn_fib_rule_put(res->r);
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}
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extern struct dn_fib_table *dn_fib_tables[];
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#else /* Endnode */
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#define dn_fib_init() do { } while(0)
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#define dn_fib_cleanup() do { } while(0)
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#define dn_fib_lookup(fl, res) (-ESRCH)
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#define dn_fib_info_put(fi) do { } while(0)
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#define dn_fib_select_multipath(fl, res) do { } while(0)
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#define dn_fib_rules_policy(saddr,res,flags) (0)
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#define dn_fib_res_put(res) do { } while(0)
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#endif /* CONFIG_DECNET_ROUTER */
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static inline __le16 dnet_make_mask(int n)
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{
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if (n)
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return dn_htons(~((1<<(16-n))-1));
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return 0;
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}
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#endif /* _NET_DN_FIB_H */
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