#include "util/rbtree.h"
#include "util/locks.h"
Data Structures | |
struct | local_zones |
Authoritative local zones storage, shared. More... | |
struct | local_zone |
Local zone. More... | |
struct | local_data |
Local data. More... | |
struct | local_rrset |
A local data RRset. More... | |
Enumerations | |
enum | localzone_type { local_zone_deny = 0, local_zone_refuse, local_zone_static, local_zone_transparent, local_zone_redirect, local_zone_nodefault } |
Local zone type This type determines processing for queries that did not match local-data directly. More... | |
Functions | |
struct local_zones * | local_zones_create () |
Create local zones storage. | |
void | local_zones_delete (struct local_zones *zones) |
Delete local zones storage. | |
int | local_zones_apply_cfg (struct local_zones *zones, struct config_file *cfg) |
Apply config settings; setup the local authoritative data. | |
int | local_zone_cmp (const void *z1, const void *z2) |
Compare two local_zone entries in rbtree. | |
int | local_data_cmp (const void *d1, const void *d2) |
Compare two local_data entries in rbtree. | |
void | local_zone_delete (struct local_zone *z) |
Delete one zone. | |
struct local_zone * | local_zones_lookup (struct local_zones *zones, uint8_t *name, size_t len, int labs, uint16_t dclass) |
Lookup zone that contains the given name, class. | |
void | local_zones_print (struct local_zones *zones) |
Debug helper. | |
int | local_zones_answer (struct local_zones *zones, struct query_info *qinfo, struct edns_data *edns, ldns_buffer *buf, struct regional *temp) |
Answer authoritatively for local zones. | |
int | local_zone_str2type (const char *str, enum localzone_type *t) |
Parse the string into localzone type. | |
struct local_zone * | local_zones_find (struct local_zones *zones, uint8_t *name, size_t len, int labs, uint16_t dclass) |
Find zone that with exactly given name, class. | |
struct local_zone * | local_zones_add_zone (struct local_zones *zones, uint8_t *name, size_t len, int labs, uint16_t dclass, enum localzone_type tp) |
Add a new zone. | |
void | local_zones_del_zone (struct local_zones *zones, struct local_zone *zone) |
Delete a zone. | |
int | local_zones_add_RR (struct local_zones *zones, const char *rr, ldns_buffer *buf) |
Add RR data into the localzone data. | |
void | local_zones_del_data (struct local_zones *zones, uint8_t *name, size_t len, int labs, uint16_t dclass) |
Remove data from domain name in the tree. | |
int | parse_dname (const char *str, uint8_t **res, size_t *len, int *labs) |
Form wireformat from text format domain name. |
enum localzone_type |
Local zone type This type determines processing for queries that did not match local-data directly.
struct local_zones* local_zones_create | ( | ) | [read] |
Create local zones storage.
References local_zone_cmp(), local_zones::lock, rbtree_init(), and local_zones::ztree.
Referenced by context_finalize(), daemon_fork(), and localzonechecks().
void local_zones_delete | ( | struct local_zones * | zones | ) |
Delete local zones storage.
zones,: | to delete. |
References local_zones::lock, lzdel(), traverse_postorder(), and local_zones::ztree.
Referenced by daemon_cleanup(), localzonechecks(), and ub_ctx_delete().
int local_zones_apply_cfg | ( | struct local_zones * | zones, | |
struct config_file * | cfg | |||
) |
Apply config settings; setup the local authoritative data.
Takes care of locking.
zones,: | is set up. | |
cfg,: | config data. |
References fatal_exit(), init_parents(), lz_enter_data(), lz_enter_defaults(), lz_enter_zones(), lz_freeup_cfg(), and lz_setup_implicit().
Referenced by context_finalize(), daemon_fork(), and localzonechecks().
int local_zone_cmp | ( | const void * | z1, | |
const void * | z2 | |||
) |
Compare two local_zone entries in rbtree.
Sort hierarchical but not canonical
z1,: | zone 1 | |
z2,: | zone 2 |
References local_zone::dclass, dname_lab_cmp(), local_zone::name, and local_zone::namelabs.
Referenced by fptr_whitelist_rbtree_cmp(), and local_zones_create().
int local_data_cmp | ( | const void * | d1, | |
const void * | d2 | |||
) |
Compare two local_data entries in rbtree.
Sort canonical.
d1,: | data 1 | |
d2,: | data 2 |
References dname_canon_lab_cmp(), local_data::name, and local_data::namelabs.
Referenced by fptr_whitelist_rbtree_cmp(), and local_zone_create().
void local_zone_delete | ( | struct local_zone * | z | ) |
Delete one zone.
z,: | to delete. |
References local_zone::lock, local_zone::name, local_zone::region, and regional_destroy().
Referenced by local_zones_add_zone(), local_zones_del_zone(), lz_enter_zone_dname(), and lzdel().
struct local_zone* local_zones_lookup | ( | struct local_zones * | zones, | |
uint8_t * | name, | |||
size_t | len, | |||
int | labs, | |||
uint16_t | dclass | |||
) | [read] |
Lookup zone that contains the given name, class.
User must lock the tree or result zone.
zones,: | the zones tree | |
name,: | dname to lookup | |
len,: | length of name. | |
labs,: | labelcount of name. | |
dclass,: | class to lookup. |
References local_zone::dclass, dname_lab_cmp(), rbnode_t::key, local_zone::name, local_zone::namelabs, local_zone::namelen, local_zone::node, local_zone::parent, rbtree_find_less_equal(), and local_zones::ztree.
Referenced by local_zones_add_RR(), local_zones_answer(), local_zones_del_data(), lz_enter_rr_str(), and lz_setup_implicit().
void local_zones_print | ( | struct local_zones * | zones | ) |
Debug helper.
Print all zones Takes care of locking.
zones,: | the zones tree |
References rbtree_t::count, local_zone::dclass, local_zone_deny, local_zone_out(), local_zone_redirect, local_zone_refuse, local_zone_static, local_zone_transparent, local_zone::lock, local_zones::lock, log_info(), log_nametypeclass(), local_zone::name, RBTREE_FOR, local_zone::type, and local_zones::ztree.
Referenced by ub_ctx_print_local_zones().
int local_zones_answer | ( | struct local_zones * | zones, | |
struct query_info * | qinfo, | |||
struct edns_data * | edns, | |||
ldns_buffer * | buf, | |||
struct regional * | temp | |||
) |
Answer authoritatively for local zones.
Takes care of locking.
zones,: | the stored zones (shared, read only). | |
qinfo,: | query info (parsed). | |
edns,: | edns info (parsed). | |
buf,: | buffer with query ID and flags, also for reply. | |
temp,: | temporary storage region. |
References dname_count_labels(), local_data_answer(), local_zones_lookup(), local_zone::lock, local_zones::lock, lz_zone_answer(), query_info::qclass, query_info::qname, and query_info::qname_len.
Referenced by handle_newq(), libworker_fg(), and worker_handle_request().
int local_zone_str2type | ( | const char * | str, | |
enum localzone_type * | t | |||
) |
Parse the string into localzone type.
str,: | string to parse | |
t,: | local zone type returned here. |
References local_zone_deny, local_zone_redirect, local_zone_refuse, local_zone_static, and local_zone_transparent.
Referenced by do_zone_add(), lz_enter_zone(), and ub_ctx_zone_add().
struct local_zone* local_zones_find | ( | struct local_zones * | zones, | |
uint8_t * | name, | |||
size_t | len, | |||
int | labs, | |||
uint16_t | dclass | |||
) | [read] |
Find zone that with exactly given name, class.
User must lock the tree or result zone.
zones,: | the zones tree | |
name,: | dname to lookup | |
len,: | length of name. | |
labs,: | labelcount of name. | |
dclass,: | class to lookup. |
References local_zone::dclass, rbnode_t::key, local_zone::name, local_zone::namelabs, local_zone::namelen, local_zone::node, rbtree_search(), and local_zones::ztree.
Referenced by do_zone_add(), do_zone_remove(), local_zones_add_zone(), ub_ctx_zone_add(), and ub_ctx_zone_remove().
struct local_zone* local_zones_add_zone | ( | struct local_zones * | zones, | |
uint8_t * | name, | |||
size_t | len, | |||
int | labs, | |||
uint16_t | dclass, | |||
enum localzone_type | tp | |||
) | [read] |
Add a new zone.
Caller must hold the zones lock. Adjusts the other zones as well (parent pointers) after insertion. The zone must NOT exist (returns NULL and logs error).
zones,: | the zones tree | |
name,: | dname to add | |
len,: | length of name. | |
labs,: | labelcount of name. | |
dclass,: | class to add. | |
tp,: | type. |
References local_zone_create(), local_zone_delete(), local_zones_find(), local_zone::lock, log_err(), local_zone::node, local_zone::parent, rbtree_insert(), set_kiddo_parents(), and local_zones::ztree.
Referenced by do_zone_add(), local_zones_add_RR(), and ub_ctx_zone_add().
void local_zones_del_zone | ( | struct local_zones * | zones, | |
struct local_zone * | zone | |||
) |
Delete a zone.
Caller must hold the zones lock. Adjusts the other zones as well (parent pointers) after insertion.
zones,: | the zones tree | |
zone,: | the zone to delete from tree. Also deletes zone from memory. |
References local_zone_delete(), local_zone::lock, local_zone::parent, rbtree_delete(), set_kiddo_parents(), and local_zones::ztree.
Referenced by do_zone_remove(), and ub_ctx_zone_remove().
int local_zones_add_RR | ( | struct local_zones * | zones, | |
const char * | rr, | |||
ldns_buffer * | buf | |||
) |
Add RR data into the localzone data.
Looks up the zone, if no covering zone, a transparent zone with the name of the RR is created.
zones,: | the zones tree. Not locked by caller. | |
rr,: | string with on RR. | |
buf,: | buffer for scratch. |
References dname_count_size_labels(), get_rr_nameclass(), local_zone_transparent, local_zones_add_zone(), local_zones_lookup(), local_zone::lock, local_zones::lock, and lz_enter_rr_into_zone().
Referenced by do_data_add(), and ub_ctx_data_add().
void local_zones_del_data | ( | struct local_zones * | zones, | |
uint8_t * | name, | |||
size_t | len, | |||
int | labs, | |||
uint16_t | dclass | |||
) |
Remove data from domain name in the tree.
All types are removed. No effect if zone or name does not exist.
zones,: | zones tree. | |
name,: | dname to remove | |
len,: | length of name. | |
labs,: | labelcount of name. | |
dclass,: | class to remove. |
References del_empty_term(), local_zones_lookup(), local_zone::lock, local_zones::lock, lz_find_node(), local_zone::name, local_data::name, query_dname_compare(), local_data::rrsets, and local_zone::soa.
Referenced by do_data_remove(), and ub_ctx_data_remove().
int parse_dname | ( | const char * | str, | |
uint8_t ** | res, | |||
size_t * | len, | |||
int * | labs | |||
) |
Form wireformat from text format domain name.
str,: | the domain name in text "www.example.com" | |
res,: | resulting wireformat is stored here with malloc. | |
len,: | length of resulting wireformat. | |
labs,: | number of labels in resulting wireformat. |
References dname_count_size_labels(), log_err(), and memdup().
Referenced by lz_enter_zone(), lz_exists(), ub_ctx_data_remove(), ub_ctx_zone_add(), and ub_ctx_zone_remove().