Differential D26156 Diff 76081 sys/net/route/route_ctl.c

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sys/net/route/route_ctl.c

Show First 20 Lines • Show All 245 Lines • ▼ Show 20 Lines	add_route(struct rib_head rnh, struct rt_addrinfo info,

rt = uma_zalloc(V_rtzone, M_NOWAIT \| M_ZERO);		rt = uma_zalloc(V_rtzone, M_NOWAIT \| M_ZERO);
if (rt == NULL) {		if (rt == NULL) {
ifa_free(info->rti_ifa);		ifa_free(info->rti_ifa);
nhop_free(nh);		nhop_free(nh);
return (ENOBUFS);		return (ENOBUFS);
}		}
RT_LOCK_INIT(rt);		RT_LOCK_INIT(rt);
rt->rt_flags = RTF_UP \| flags;		rt->rte_flags = RTF_UP \| flags;
rt->rt_nhop = nh;		rt->rt_nhop = nh;

/* Fill in dst */		/* Fill in dst */
memcpy(&rt->rt_dst, dst, dst->sa_len);		memcpy(&rt->rt_dst, dst, dst->sa_len);
rt_key(rt) = &rt->rt_dst;		rt_key(rt) = &rt->rt_dst;

/*		/*
* point to the (possibly newly malloc'd) dest address.		* point to the (possibly newly malloc'd) dest address.
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* EADDRINUSE - if trying to delete PINNED route without appropriate flag.		* EADDRINUSE - if trying to delete PINNED route without appropriate flag.
* ENOENT - if supplied filter function returned 0 (not matched).		* ENOENT - if supplied filter function returned 0 (not matched).
*/		*/
struct rtentry *		struct rtentry *
rt_unlinkrte(struct rib_head rnh, struct rt_addrinfo info, int *perror)		rt_unlinkrte(struct rib_head rnh, struct rt_addrinfo info, int *perror)
{		{
struct sockaddr dst, netmask;		struct sockaddr dst, netmask;
struct rtentry *rt;		struct rtentry *rt;
		struct nhop_object *nh;
struct radix_node *rn;		struct radix_node *rn;

dst = info->rti_info[RTAX_DST];		dst = info->rti_info[RTAX_DST];
netmask = info->rti_info[RTAX_NETMASK];		netmask = info->rti_info[RTAX_NETMASK];

rt = (struct rtentry *)rnh->rnh_lookup(dst, netmask, &rnh->head);		rt = (struct rtentry *)rnh->rnh_lookup(dst, netmask, &rnh->head);
if (rt == NULL) {		if (rt == NULL) {
*perror = ESRCH;		*perror = ESRCH;
return (NULL);		return (NULL);
}		}

		nh = rt->rt_nhop;

if ((info->rti_flags & RTF_PINNED) == 0) {		if ((info->rti_flags & RTF_PINNED) == 0) {
/* Check if target route can be deleted */		/* Check if target route can be deleted */
if (rt->rt_flags & RTF_PINNED) {		if (NH_IS_PINNED(nh)) {
*perror = EADDRINUSE;		*perror = EADDRINUSE;
return (NULL);		return (NULL);
}		}
}		}

if (info->rti_filter != NULL) {		if (info->rti_filter != NULL) {
if (info->rti_filter(rt, rt->rt_nhop, info->rti_filterdata)==0){		if (info->rti_filter(rt, nh, info->rti_filterdata)==0){
/* Not matched */		/* Not matched */
*perror = ENOENT;		*perror = ENOENT;
return (NULL);		return (NULL);
}		}

/*		/*
* Filter function requested rte deletion.		* Filter function requested rte deletion.
* Ease the caller work by filling in remaining info		* Ease the caller work by filling in remaining info
* from that particular entry.		* from that particular entry.
*/		*/
info->rti_info[RTAX_GATEWAY] = &rt->rt_nhop->gw_sa;		info->rti_info[RTAX_GATEWAY] = &nh->gw_sa;
}		}

/*		/*
* Remove the item from the tree and return it.		* Remove the item from the tree and return it.
* Complain if it is not there and do no more processing.		* Complain if it is not there and do no more processing.
*/		*/
*perror = ESRCH;		*perror = ESRCH;
#ifdef RADIX_MPATH		#ifdef RADIX_MPATH
if (rt_mpath_capable(rnh))		if (rt_mpath_capable(rnh))
rn = rt_mpath_unlink(rnh, info, rt, perror);		rn = rt_mpath_unlink(rnh, info, rt, perror);
else		else
#endif		#endif
rn = rnh->rnh_deladdr(dst, netmask, &rnh->head);		rn = rnh->rnh_deladdr(dst, netmask, &rnh->head);
if (rn == NULL)		if (rn == NULL)
return (NULL);		return (NULL);

if (rn->rn_flags & (RNF_ACTIVE \| RNF_ROOT))		if (rn->rn_flags & (RNF_ACTIVE \| RNF_ROOT))
panic ("rtrequest delete");		panic ("rtrequest delete");

rt = RNTORT(rn);		rt = RNTORT(rn);
RT_LOCK(rt);		RT_LOCK(rt);
rt->rt_flags &= ~RTF_UP;		rt->rte_flags &= ~RTF_UP;

*perror = 0;		*perror = 0;

return (rt);		return (rt);
}		}

static int		static int
del_route(struct rib_head rnh, struct rt_addrinfo info,		del_route(struct rib_head rnh, struct rt_addrinfo info,
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