2 * edns-subnet/subnet-whitelist.h - Hosts we actively try to send subnet option
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39 * Keep track of the white listed servers for subnet option. Based
43 #ifndef EDNSSUBNET_WHITELIST_H
44 #define EDNSSUBNET_WHITELIST_H
45 #include "util/storage/dnstree.h"
51 * ednssubnet_upstream structure
53 struct ednssubnet_upstream {
54 /** regional for allocation */
55 struct regional* region;
57 * Tree of the address spans that are whitelisted.
58 * contents of type addr_tree_node. Each node is an address span
59 * Unbound will append subnet option for.
65 * Create ednssubnet_upstream structure
66 * @return new structure or NULL on error.
68 struct ednssubnet_upstream* upstream_create(void);
71 * Delete ednssubnet_upstream structure.
72 * @param upstream: to delete.
74 void upstream_delete(struct ednssubnet_upstream* upstream);
77 * Process ednssubnet_upstream config.
78 * @param upstream: where to store.
79 * @param cfg: config options.
82 int upstream_apply_cfg(struct ednssubnet_upstream* upstream,
83 struct config_file* cfg);
86 * See if an address is whitelisted.
87 * @param upstream: structure for address storage.
88 * @param addr: address to check
89 * @param addrlen: length of addr.
90 * @return: true if the address is whitelisted for subnet option.
92 int upstream_is_whitelisted(struct ednssubnet_upstream* upstream,
93 struct sockaddr_storage* addr, socklen_t addrlen);
96 * Get memory used by ednssubnet_upstream structure.
97 * @param upstream: structure for address storage.
98 * @return bytes in use.
100 size_t upstream_get_mem(struct ednssubnet_upstream* upstream);
102 #endif /* EDNSSUBNET_WHITELIST_H */