1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ***   To edit the content of this header, modify the corresponding
11  ***   source file (e.g. under external/kernel-headers/original/) then
12  ***   run bionic/libc/kernel/tools/update_all.py
13  ***
14  ***   Any manual change here will be lost the next time this script will
15  ***   be run. You've been warned!
16  ***
17  ****************************************************************************
18  ****************************************************************************/
19 #ifndef _UAPI_LINUX_DNS_RESOLVER_H
20 #define _UAPI_LINUX_DNS_RESOLVER_H
21 #include <linux/types.h>
22 enum dns_payload_content_type {
23   DNS_PAYLOAD_IS_SERVER_LIST = 0,
24 };
25 enum dns_payload_address_type {
26   DNS_ADDRESS_IS_IPV4 = 0,
27   DNS_ADDRESS_IS_IPV6 = 1,
28 };
29 enum dns_payload_protocol_type {
30   DNS_SERVER_PROTOCOL_UNSPECIFIED = 0,
31   DNS_SERVER_PROTOCOL_UDP = 1,
32   DNS_SERVER_PROTOCOL_TCP = 2,
33 };
34 enum dns_record_source {
35   DNS_RECORD_UNAVAILABLE = 0,
36   DNS_RECORD_FROM_CONFIG = 1,
37   DNS_RECORD_FROM_DNS_A = 2,
38   DNS_RECORD_FROM_DNS_AFSDB = 3,
39   DNS_RECORD_FROM_DNS_SRV = 4,
40   DNS_RECORD_FROM_NSS = 5,
41   NR__dns_record_source
42 };
43 enum dns_lookup_status {
44   DNS_LOOKUP_NOT_DONE = 0,
45   DNS_LOOKUP_GOOD = 1,
46   DNS_LOOKUP_GOOD_WITH_BAD = 2,
47   DNS_LOOKUP_BAD = 3,
48   DNS_LOOKUP_GOT_NOT_FOUND = 4,
49   DNS_LOOKUP_GOT_LOCAL_FAILURE = 5,
50   DNS_LOOKUP_GOT_TEMP_FAILURE = 6,
51   DNS_LOOKUP_GOT_NS_FAILURE = 7,
52   NR__dns_lookup_status
53 };
54 struct dns_payload_header {
55   __u8 zero;
56   __u8 content;
57   __u8 version;
58 } __packed;
59 struct dns_server_list_v1_header {
60   struct dns_payload_header hdr;
61   __u8 source;
62   __u8 status;
63   __u8 nr_servers;
64 } __packed;
65 struct dns_server_list_v1_server {
66   __u16 name_len;
67   __u16 priority;
68   __u16 weight;
69   __u16 port;
70   __u8 source;
71   __u8 status;
72   __u8 protocol;
73   __u8 nr_addrs;
74 } __packed;
75 struct dns_server_list_v1_address {
76   __u8 address_type;
77 } __packed;
78 #endif
79