diff options
Diffstat (limited to 'src/resolve/resolved-dns-packet.h')
| -rw-r--r-- | src/resolve/resolved-dns-packet.h | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/src/resolve/resolved-dns-packet.h b/src/resolve/resolved-dns-packet.h index fbbabaf232..90b5a7c8bd 100644 --- a/src/resolve/resolved-dns-packet.h +++ b/src/resolve/resolved-dns-packet.h @@ -21,21 +21,21 @@ along with systemd; If not, see <http://www.gnu.org/licenses/>. ***/ -#include <netinet/udp.h> #include <netinet/ip.h> +#include <netinet/udp.h> -#include "macro.h" -#include "sparse-endian.h" #include "hashmap.h" #include "in-addr-util.h" +#include "macro.h" +#include "sparse-endian.h" typedef struct DnsPacketHeader DnsPacketHeader; typedef struct DnsPacket DnsPacket; -#include "resolved-dns-rr.h" -#include "resolved-dns-question.h" -#include "resolved-dns-answer.h" #include "resolved-def.h" +#include "resolved-dns-answer.h" +#include "resolved-dns-question.h" +#include "resolved-dns-rr.h" typedef enum DnsProtocol { DNS_PROTOCOL_DNS, @@ -155,9 +155,9 @@ int dns_packet_append_uint8(DnsPacket *p, uint8_t v, size_t *start); int dns_packet_append_uint16(DnsPacket *p, uint16_t v, size_t *start); int dns_packet_append_uint32(DnsPacket *p, uint32_t v, size_t *start); int dns_packet_append_string(DnsPacket *p, const char *s, size_t *start); +int dns_packet_append_raw_string(DnsPacket *p, const void *s, size_t size, size_t *start); int dns_packet_append_label(DnsPacket *p, const char *s, size_t l, size_t *start); -int dns_packet_append_name(DnsPacket *p, const char *name, - bool allow_compression, size_t *start); +int dns_packet_append_name(DnsPacket *p, const char *name, bool allow_compression, size_t *start); int dns_packet_append_key(DnsPacket *p, const DnsResourceKey *key, size_t *start); int dns_packet_append_rr(DnsPacket *p, const DnsResourceRecord *rr, size_t *start); @@ -167,8 +167,8 @@ int dns_packet_read_uint8(DnsPacket *p, uint8_t *ret, size_t *start); int dns_packet_read_uint16(DnsPacket *p, uint16_t *ret, size_t *start); int dns_packet_read_uint32(DnsPacket *p, uint32_t *ret, size_t *start); int dns_packet_read_string(DnsPacket *p, char **ret, size_t *start); -int dns_packet_read_name(DnsPacket *p, char **ret, - bool allow_compression, size_t *start); +int dns_packet_read_raw_string(DnsPacket *p, const void **ret, size_t *size, size_t *start); +int dns_packet_read_name(DnsPacket *p, char **ret, bool allow_compression, size_t *start); int dns_packet_read_key(DnsPacket *p, DnsResourceKey **ret, size_t *start); int dns_packet_read_rr(DnsPacket *p, DnsResourceRecord **ret, size_t *start); @@ -177,6 +177,14 @@ void dns_packet_rewind(DnsPacket *p, size_t idx); int dns_packet_skip_question(DnsPacket *p); int dns_packet_extract(DnsPacket *p); +static inline bool DNS_PACKET_SHALL_CACHE(DnsPacket *p) { + /* Never cache data originating from localhost, under the + * assumption, that it's coming from a locally DNS forwarder + * or server, that is caching on its own. */ + + return in_addr_is_localhost(p->family, &p->sender) == 0; +} + enum { DNS_RCODE_SUCCESS = 0, DNS_RCODE_FORMERR = 1, |