#include <dns_structs.h>
Public Member Functions | |
| HT_ENTRY (cached_resolve_t) node | |
Data Fields | |
| uint32_t | magic |
| char | address [MAX_ADDRESSLEN] |
| union { | |
| uint32_t addr_ipv4 | |
| int err_ipv4 | |
| } | result_ipv4 |
| union { | |
| struct in6_addr addr_ipv6 | |
| int err_ipv6 | |
| } | result_ipv6 |
| union { | |
| char * hostname | |
| int err_hostname | |
| } | result_ptr |
| uint8_t | state |
| time_t | expire |
| uint32_t | ttl_ipv4 |
| uint32_t | ttl_ipv6 |
| uint32_t | ttl_hostname |
| pending_connection_t * | pending_connections |
| int | minheap_idx |
Status fields | |
These take one of the RES_STATUS_* values, depending on the state of the corresponding lookup. | |
| unsigned int | res_status_ipv4: 2 |
| unsigned int | res_status_ipv6: 2 |
| unsigned int | res_status_hostname: 2 |
Detailed Description
A DNS request: possibly completed, possibly pending; cached_resolve structs are stored at the OR side in a hash table, and as a linked list from oldest to newest.
Field Documentation
◆ addr_ipv4
| uint32_t addr_ipv4 |
IPv4 addr for address, if successful. (In host order.)
◆ addr_ipv6
| struct in6_addr addr_ipv6 |
IPv6 addr for address, if successful
◆ address
| char address[MAX_ADDRESSLEN] |
The hostname to be resolved.
◆ err_hostname
| int err_hostname |
A hostname, if PTR lookup happened successfully
◆ err_ipv4
| int err_ipv4 |
One of DNS_ERR_*, if IPv4 lookup failed.
◆ err_ipv6
| int err_ipv6 |
One of DNS_ERR_*, if IPv6 lookup failed.
◆ expire
| time_t expire |
Remove items from cache after this time.
◆ magic
| uint32_t magic |
Must be CACHED_RESOLVE_MAGIC
◆ minheap_idx
| int minheap_idx |
Position of this element in the heap
◆ pending_connections
| pending_connection_t* pending_connections |
Connections that want to know when we get an answer for this resolve.
◆ result_ipv4
| union { ... } result_ipv4 |
Outcome of IPv4 lookup
◆ result_ipv6
| union { ... } result_ipv6 |
Outcome of IPv6 lookup, if any
◆ state
| uint8_t state |
Is this cached entry pending/done/informative?
◆ ttl_hostname
| uint32_t ttl_hostname |
What TTL did the nameserver tell us?
◆ ttl_ipv4
| uint32_t ttl_ipv4 |
What TTL did the nameserver tell us?
◆ ttl_ipv6
| uint32_t ttl_ipv6 |
What TTL did the nameserver tell us?
The documentation for this struct was generated from the following file:
- /home/user/_my/code/bwauth-related/tor/src/or/dns_structs.h
