net/xfrm/xfrm_policy.c

85  * |                 +- root: sorted by saddr/prefix
91  * |                 |              + hhead: saddr:daddr policies
95  * +---- root_s: sorted by saddr:prefix
101  * |                 + hhead: saddr:any policies
108  * 3. saddr:daddr list from 2nd level daddr tree
109  * 4. saddr:any list from saddr tree
132 	/* tree sorted by saddr/prefix */
205 				    const xfrm_address_t *saddr,
219 		addr4_match(fl4->saddr, sel->saddr.a4, sel->prefixlen_s) &&
232 		addr_match(&fl6->saddr, &sel->saddr, sel->prefixlen_s) &&
271 				    const xfrm_address_t *saddr,
282 	dst = afinfo->dst_lookup(net, tos, oif, saddr, daddr, mark);
297 	xfrm_address_t *saddr = &x->props.saddr;
302 		saddr = x->coaddr;
306 		saddr = prev_saddr;
310 	dst = __xfrm_dst_lookup(net, tos, oif, saddr, daddr, family, mark);
313 		if (prev_saddr != saddr)
314 			memcpy(prev_saddr, saddr,  sizeof(*prev_saddr));
521 					     const xfrm_address_t *saddr,
530 	hash = __addr_hash(daddr, saddr, family, hmask, dbits, sbits);
553 		h = __addr_hash(&pol->selector.daddr, &pol->selector.saddr,
777 	addr = &policy->selector.saddr;
893 		 * saddr or daddr for current node prefix.
895 		 * Matching both is fine, matching saddr in one policy
899 		matches_s = xfrm_policy_addr_delta(&policy->selector.saddr,
1161 						    &policy->selector.saddr,
1183 	/* saddr is wildcard */
1184 	if (xfrm_pol_inexact_addr_use_any_list(&policy->selector.saddr,
1192 					    &policy->selector.saddr,
1686 							 &sel->saddr,
2044 				    const xfrm_address_t *saddr,
2061 		n = xfrm_policy_lookup_inexact_addr(&n->root, &b->count, saddr,
2067 	n = xfrm_policy_lookup_inexact_addr(&b->root_s, &b->count, saddr,
2176 	const xfrm_address_t *daddr, *saddr;
2184 	saddr = xfrm_flowi_saddr(fl, family);
2185 	if (unlikely(!daddr || !saddr))
2192 		chain = policy_hash_direct(net, daddr, saddr, family, dir);
2214 	if (!bin || !xfrm_policy_find_inexact_candidates(&cand, bin, saddr,
2467 	xfrm_address_t *saddr = xfrm_flowi_saddr(fl, family);
2473 		xfrm_address_t *local  = saddr;
2479 			local = &tmpl->saddr;
2502 			saddr = local;
2655 	xfrm_address_t saddr, daddr;
2657 	xfrm_flowi_addr_get(fl, &saddr, &daddr, family);
2708 					      &saddr, &daddr, family, mark);
3405 		fl4->saddr = flkeys->addrs.ipv4.dst;
3410 		fl4->saddr = flkeys->addrs.ipv4.src;
3439 		fl6->saddr = flkeys->addrs.ipv6.dst;
3444 		fl6->saddr = flkeys->addrs.ipv6.src;
4377 		audit_log_format(audit_buf, " src=%pI4", &sel->saddr.a4);
4387 		audit_log_format(audit_buf, " src=%pI6", sel->saddr.a6);
4437 		    xfrm_addr_equal(&sel_tgt->saddr, &sel_cmp->saddr,
4459 	chain = policy_hash_direct(net, &sel->daddr, &sel->saddr, sel->family, dir);
4500 			    xfrm_addr_equal(&t->saddr, &m->old_saddr,
4545 			memcpy(&pol->xfrm_vec[i].saddr, &mp->new_saddr,
4546 			       sizeof(pol->xfrm_vec[i].saddr));