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| author | Lennart Poettering <lennart@poettering.net> | 2019-07-17 19:27:16 +0200 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-07-17 19:27:16 +0200 |
| commit | ea582a0f1b052330a45b5d7bbc9fb860d1c0d98b (patch) | |
| tree | 24a24106db602360fea3bb623725d635613e9da9 /src/shared | |
| parent | 5eeb19c6002e98c32ea4ae7651be64287467045d (diff) | |
| parent | 37d7a7d984ec7679711c2d31789f033f3b6dc2c2 (diff) | |
| download | systemd-ea582a0f1b052330a45b5d7bbc9fb860d1c0d98b.tar.gz systemd-ea582a0f1b052330a45b5d7bbc9fb860d1c0d98b.tar.bz2 systemd-ea582a0f1b052330a45b5d7bbc9fb860d1c0d98b.zip | |
Merge pull request #13047 from niedbalski/fix-5552-pr
resolved: add new option to only cache positive answers
Diffstat (limited to 'src/shared')
| -rw-r--r-- | src/shared/resolve-util.c | 9 | ||||
| -rw-r--r-- | src/shared/resolve-util.h | 14 |
2 files changed, 23 insertions, 0 deletions
diff --git a/src/shared/resolve-util.c b/src/shared/resolve-util.c index 3d14410e32..615cb6d852 100644 --- a/src/shared/resolve-util.c +++ b/src/shared/resolve-util.c @@ -41,3 +41,12 @@ bool dns_server_address_valid(int family, const union in_addr_union *sa) { return true; } + +DEFINE_CONFIG_PARSE_ENUM(config_parse_dns_cache_mode, dns_cache_mode, DnsCacheMode, "Failed to parse DNS cache mode setting") + +static const char* const dns_cache_mode_table[_DNS_CACHE_MODE_MAX] = { + [DNS_CACHE_MODE_YES] = "yes", + [DNS_CACHE_MODE_NO] = "no", + [DNS_CACHE_MODE_NO_NEGATIVE] = "no-negative", +}; +DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN(dns_cache_mode, DnsCacheMode, DNS_CACHE_MODE_YES); diff --git a/src/shared/resolve-util.h b/src/shared/resolve-util.h index cf097dfaa3..acf1f3dade 100644 --- a/src/shared/resolve-util.h +++ b/src/shared/resolve-util.h @@ -8,6 +8,16 @@ /* 127.0.0.53 in native endian */ #define INADDR_DNS_STUB ((in_addr_t) 0x7f000035U) +typedef enum DnsCacheMode DnsCacheMode; + +enum DnsCacheMode { + DNS_CACHE_MODE_NO, + DNS_CACHE_MODE_YES, + DNS_CACHE_MODE_NO_NEGATIVE, + _DNS_CACHE_MODE_MAX, + _DNS_CACHE_MODE_INVALID = 1 +}; + typedef enum ResolveSupport ResolveSupport; typedef enum DnssecMode DnssecMode; typedef enum DnsOverTlsMode DnsOverTlsMode; @@ -56,6 +66,7 @@ enum DnsOverTlsMode { CONFIG_PARSER_PROTOTYPE(config_parse_resolve_support); CONFIG_PARSER_PROTOTYPE(config_parse_dnssec_mode); CONFIG_PARSER_PROTOTYPE(config_parse_dns_over_tls_mode); +CONFIG_PARSER_PROTOTYPE(config_parse_dns_cache_mode); const char* resolve_support_to_string(ResolveSupport p) _const_; ResolveSupport resolve_support_from_string(const char *s) _pure_; @@ -67,3 +78,6 @@ const char* dns_over_tls_mode_to_string(DnsOverTlsMode p) _const_; DnsOverTlsMode dns_over_tls_mode_from_string(const char *s) _pure_; bool dns_server_address_valid(int family, const union in_addr_union *sa); + +const char* dns_cache_mode_to_string(DnsCacheMode p) _const_; +DnsCacheMode dns_cache_mode_from_string(const char *s) _pure_; |