Differential D26449 Diff 77806 sys/net/route/route_var.h

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sys/net/route/route_var.h

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#define RIB_WLOCK(rh) rm_wlock(&(rh)->rib_lock)		#define RIB_WLOCK(rh) rm_wlock(&(rh)->rib_lock)
#define RIB_WUNLOCK(rh) rm_wunlock(&(rh)->rib_lock)		#define RIB_WUNLOCK(rh) rm_wunlock(&(rh)->rib_lock)
#define RIB_LOCK_ASSERT(rh) rm_assert(&(rh)->rib_lock, RA_LOCKED)		#define RIB_LOCK_ASSERT(rh) rm_assert(&(rh)->rib_lock, RA_LOCKED)
#define RIB_WLOCK_ASSERT(rh) rm_assert(&(rh)->rib_lock, RA_WLOCKED)		#define RIB_WLOCK_ASSERT(rh) rm_assert(&(rh)->rib_lock, RA_WLOCKED)

/* Constants */		/* Constants */
#define RIB_MAX_RETRIES 3		#define RIB_MAX_RETRIES 3
#define RT_MAXFIBS UINT16_MAX		#define RT_MAXFIBS UINT16_MAX
		#define RIB_MAX_MPATH_WIDTH 64

/* Macro for verifying fields in af-specific 'struct route' structures */		/* Macro for verifying fields in af-specific 'struct route' structures */
#define CHK_STRUCT_FIELD_GENERIC(_s1, _f1, _s2, _f2) \		#define CHK_STRUCT_FIELD_GENERIC(_s1, _f1, _s2, _f2) \
_Static_assert(sizeof(((_s1 )0)->_f1) == sizeof(((_s2 )0)->_f2), \		_Static_assert(sizeof(((_s1 )0)->_f1) == sizeof(((_s2 )0)->_f2), \
"Fields " #_f1 " and " #_f2 " size differs"); \		"Fields " #_f1 " and " #_f2 " size differs"); \
_Static_assert(__offsetof(_s1, _f1) == __offsetof(_s2, _f2), \		_Static_assert(__offsetof(_s1, _f1) == __offsetof(_s2, _f2), \
"Fields " #_f1 " and " #_f2 " offset differs");		"Fields " #_f1 " and " #_f2 " offset differs");

Show All 10 Lines	#define CHK_STRUCT_ROUTE_FIELDS(_route_new) \
_CHK_ROUTE_FIELD(_route_new, spare)		_CHK_ROUTE_FIELD(_route_new, spare)

#define CHK_STRUCT_ROUTE_COMPAT(_ro_new, _dst_new) \		#define CHK_STRUCT_ROUTE_COMPAT(_ro_new, _dst_new) \
CHK_STRUCT_ROUTE_FIELDS(_ro_new); \		CHK_STRUCT_ROUTE_FIELDS(_ro_new); \
_Static_assert(__offsetof(struct route, ro_dst) == __offsetof(_ro_new, _dst_new),\		_Static_assert(__offsetof(struct route, ro_dst) == __offsetof(_ro_new, _dst_new),\
"ro_dst and " #_dst_new " are at different offset")		"ro_dst and " #_dst_new " are at different offset")

struct rib_head *rt_tables_get_rnh(uint32_t table, sa_family_t family);		struct rib_head *rt_tables_get_rnh(uint32_t table, sa_family_t family);
void rt_mpath_init_rnh(struct rib_head *rnh);
int rt_getifa_fib(struct rt_addrinfo *info, u_int fibnum);		int rt_getifa_fib(struct rt_addrinfo *info, u_int fibnum);
#ifdef RADIX_MPATH
struct radix_node rt_mpath_unlink(struct rib_head rnh,
struct rt_addrinfo info, struct rtentry rto, int *perror);
#endif
struct rib_cmd_info;		struct rib_cmd_info;

VNET_PCPUSTAT_DECLARE(struct rtstat, rtstat);		VNET_PCPUSTAT_DECLARE(struct rtstat, rtstat);
#define RTSTAT_ADD(name, val) \		#define RTSTAT_ADD(name, val) \
VNET_PCPUSTAT_ADD(struct rtstat, rtstat, name, (val))		VNET_PCPUSTAT_ADD(struct rtstat, rtstat, name, (val))
#define RTSTAT_INC(name) RTSTAT_ADD(name, 1)		#define RTSTAT_INC(name) RTSTAT_ADD(name, 1)

/*		/*
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/* Nexthop rt flags mask */		/* Nexthop rt flags mask */
#define NHOP_RT_FLAG_MASK (RTF_GATEWAY \| RTF_HOST \| RTF_REJECT \| RTF_DYNAMIC \| \		#define NHOP_RT_FLAG_MASK (RTF_GATEWAY \| RTF_HOST \| RTF_REJECT \| RTF_DYNAMIC \| \
RTF_MODIFIED \| RTF_STATIC \| RTF_BLACKHOLE \| RTF_PROTO1 \| RTF_PROTO2 \| \		RTF_MODIFIED \| RTF_STATIC \| RTF_BLACKHOLE \| RTF_PROTO1 \| RTF_PROTO2 \| \
RTF_PROTO3 \| RTF_FIXEDMTU \| RTF_PINNED \| RTF_BROADCAST)		RTF_PROTO3 \| RTF_FIXEDMTU \| RTF_PINNED \| RTF_BROADCAST)

/* rtentry rt flag mask */		/* rtentry rt flag mask */
#define RTE_RT_FLAG_MASK (RTF_UP \| RTF_HOST)		#define RTE_RT_FLAG_MASK (RTF_UP \| RTF_HOST)

/* Nexthop selection */
#define _NH2MP(_nh) ((struct nhgrp_object *)(_nh))
#define _SELECT_NHOP(_nh, _flowid) \
(_NH2MP(_nh))->nhops[(_flowid) % (_NH2MP(_nh))->mp_size]
#define _RT_SELECT_NHOP(_nh, _flowid) \
((!NH_IS_MULTIPATH(_nh)) ? (_nh) : _SELECT_NHOP(_nh, _flowid))
#define RT_SELECT_NHOP(_rt, _flowid) _RT_SELECT_NHOP((_rt)->rt_nhop, _flowid)

/* route_temporal.c */		/* route_temporal.c */
void tmproutes_update(struct rib_head rnh, struct rtentry rt);		void tmproutes_update(struct rib_head rnh, struct rtentry rt);
void tmproutes_init(struct rib_head *rh);		void tmproutes_init(struct rib_head *rh);
void tmproutes_destroy(struct rib_head *rh);		void tmproutes_destroy(struct rib_head *rh);

/* route_ctl.c */		/* route_ctl.c */
struct route_nhop_data {		struct route_nhop_data {
		union {
struct nhop_object *rnd_nhop;		struct nhop_object *rnd_nhop;
		struct nhgrp_object *rnd_nhgrp;
		};
uint32_t rnd_weight;		uint32_t rnd_weight;
};		};

		int change_route_nhop(struct rib_head rnh, struct rtentry rt,
		struct rt_addrinfo info, struct route_nhop_data rnd,
		struct rib_cmd_info *rc);
int change_route_conditional(struct rib_head rnh, struct rtentry rt,		int change_route_conditional(struct rib_head rnh, struct rtentry rt,
struct rt_addrinfo info, struct route_nhop_data nhd_orig,		struct rt_addrinfo info, struct route_nhop_data nhd_orig,
struct route_nhop_data nhd_new, struct rib_cmd_info rc);		struct route_nhop_data nhd_new, struct rib_cmd_info rc);
struct rtentry lookup_prefix(struct rib_head rnh,		struct rtentry lookup_prefix(struct rib_head rnh,
const struct rt_addrinfo info, struct route_nhop_data rnd);		const struct rt_addrinfo info, struct route_nhop_data rnd);

		bool nhop_can_multipath(const struct nhop_object *nh);
		bool match_nhop_gw(const struct nhop_object nh, const struct sockaddr gw);
int check_info_match_nhop(const struct rt_addrinfo *info,		int check_info_match_nhop(const struct rt_addrinfo *info,
const struct rtentry rt, const struct nhop_object nh);		const struct rtentry rt, const struct nhop_object nh);
int can_override_nhop(const struct rt_addrinfo *info,		int can_override_nhop(const struct rt_addrinfo *info,
const struct nhop_object *nh);		const struct nhop_object *nh);

void vnet_rtzone_init(void);		void vnet_rtzone_init(void);
void vnet_rtzone_destroy(void);		void vnet_rtzone_destroy(void);

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int nhop_create_from_info(struct rib_head rnh, struct rt_addrinfo info,		int nhop_create_from_info(struct rib_head rnh, struct rt_addrinfo info,
struct nhop_object **nh_ret);		struct nhop_object **nh_ret);
int nhop_create_from_nhop(struct rib_head rnh, const struct nhop_object nh_orig,		int nhop_create_from_nhop(struct rib_head rnh, const struct nhop_object nh_orig,
struct rt_addrinfo info, struct nhop_object *pnh_priv);		struct rt_addrinfo info, struct nhop_object *pnh_priv);

void nhops_update_ifmtu(struct rib_head rh, struct ifnet ifp, uint32_t mtu);		void nhops_update_ifmtu(struct rib_head rh, struct ifnet ifp, uint32_t mtu);
int nhops_dump_sysctl(struct rib_head rh, struct sysctl_req w);		int nhops_dump_sysctl(struct rib_head rh, struct sysctl_req w);

		/* MULTIPATH */
		#define MPF_MULTIPATH 0x08 /* need to be consistent with NHF_MULTIPATH */

		struct nhgrp_object {
		uint16_t nhg_flags; /* nexthop group flags */
		uint8_t nhg_size; /* dataplain group size */
		uint8_t spare;
		struct nhop_object nhops[0]; / nhops */
		};

		static inline struct nhop_object *
		nhop_select(struct nhop_object *nh, uint32_t flowid)
		{

		#ifdef ROUTE_MPATH
		if (NH_IS_NHGRP(nh)) {
		struct nhgrp_object nhg = (struct nhgrp_object )nh;
		nh = nhg->nhops[flowid % nhg->nhg_size];
		}
		#endif
		return (nh);
		}


		struct weightened_nhop;

		/* mpath_ctl.c */
		int add_route_mpath(struct rib_head rnh, struct rt_addrinfo info,
		struct rtentry rt, struct route_nhop_data rnd_add,
		struct route_nhop_data rnd_orig, struct rib_cmd_info rc);
		int del_route_mpath(struct rib_head rh, struct rt_addrinfo info,
		struct rtentry rt, struct nhgrp_object nhg, struct rib_cmd_info *rc);

		/* nhgrp.c */
		int nhgrp_ctl_init(struct nh_control *ctl);
		void nhgrp_ctl_free(struct nh_control *ctl);
		void nhgrp_ctl_unlink_all(struct nh_control *ctl);


		/* nhgrp_ctl.c */
		int nhgrp_dump_sysctl(struct rib_head rh, struct sysctl_req w);

		int nhgrp_get_group(struct rib_head rh, struct weightened_nhop wn,
		int num_nhops, struct route_nhop_data *rnd);
		typedef bool nhgrp_filter_cb_t(const struct nhop_object nh, void data);
		int nhgrp_get_filtered_group(struct rib_head rh, const struct nhgrp_object src,
		nhgrp_filter_cb_t flt_func, void flt_data, struct route_nhop_data rnd);
		int nhgrp_get_addition_group(struct rib_head *rnh,
		struct route_nhop_data rnd_orig, struct route_nhop_data rnd_add,
		struct route_nhop_data *rnd_new);

		void nhgrp_free(struct nhgrp_object *nhg);

#endif		#endif