From ca67b09c015d4af3ae3cce12aa72e60941dbb8b5 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:52 +0200 Subject: Adding debian version 2.06-13+deb12u1. Signed-off-by: Daniel Baumann --- .../disabled/gpxe/src/include/gpxe/dns.h | 92 ++++++++++++++++++++++ 1 file changed, 92 insertions(+) create mode 100644 debian/grub-extras/disabled/gpxe/src/include/gpxe/dns.h (limited to 'debian/grub-extras/disabled/gpxe/src/include/gpxe/dns.h') diff --git a/debian/grub-extras/disabled/gpxe/src/include/gpxe/dns.h b/debian/grub-extras/disabled/gpxe/src/include/gpxe/dns.h new file mode 100644 index 0000000..9e5e874 --- /dev/null +++ b/debian/grub-extras/disabled/gpxe/src/include/gpxe/dns.h @@ -0,0 +1,92 @@ +#ifndef _GPXE_DNS_H +#define _GPXE_DNS_H + +/** @file + * + * DNS protocol + * + */ + +FILE_LICENCE ( GPL2_OR_LATER ); + +#include +#include + +/* + * Constants + * + */ + +#define DNS_TYPE_A 1 +#define DNS_TYPE_CNAME 5 +#define DNS_TYPE_ANY 255 + +#define DNS_CLASS_IN 1 +#define DNS_CLASS_CS 2 +#define DNS_CLASS_CH 3 +#define DNS_CLASS_HS 4 + +#define DNS_FLAG_QUERY ( 0x00 << 15 ) +#define DNS_FLAG_RESPONSE ( 0x01 << 15 ) +#define DNS_FLAG_QR(flags) ( (flags) & ( 0x01 << 15 ) ) +#define DNS_FLAG_OPCODE_QUERY ( 0x00 << 11 ) +#define DNS_FLAG_OPCODE_IQUERY ( 0x01 << 11 ) +#define DNS_FLAG_OPCODE_STATUS ( 0x02 << 11 ) +#define DNS_FLAG_OPCODE(flags) ( (flags) & ( 0x0f << 11 ) ) +#define DNS_FLAG_RD ( 0x01 << 8 ) +#define DNS_FLAG_RA ( 0x01 << 7 ) +#define DNS_FLAG_RCODE_OK ( 0x00 << 0 ) +#define DNS_FLAG_RCODE_NX ( 0x03 << 0 ) +#define DNS_FLAG_RCODE(flags) ( (flags) & ( 0x0f << 0 ) ) + +#define DNS_PORT 53 +#define DNS_MAX_RETRIES 3 +#define DNS_MAX_CNAME_RECURSION 0x30 + +/* + * DNS protocol structures + * + */ +struct dns_header { + uint16_t id; + uint16_t flags; + uint16_t qdcount; + uint16_t ancount; + uint16_t nscount; + uint16_t arcount; +} __attribute__ (( packed )); + +struct dns_query_info { + uint16_t qtype; + uint16_t qclass; +} __attribute__ (( packed )); + +struct dns_query { + struct dns_header dns; + char payload[ 256 + sizeof ( struct dns_query_info ) ]; +} __attribute__ (( packed )); + +struct dns_rr_info_common { + uint16_t type; + uint16_t class; + uint32_t ttl; + uint16_t rdlength; +} __attribute__ (( packed )); + +struct dns_rr_info_a { + struct dns_rr_info_common common; + struct in_addr in_addr; +} __attribute__ (( packed )); + +struct dns_rr_info_cname { + struct dns_rr_info_common common; + char cname[0]; +} __attribute__ (( packed )); + +union dns_rr_info { + struct dns_rr_info_common common; + struct dns_rr_info_a a; + struct dns_rr_info_cname cname; +}; + +#endif /* _GPXE_DNS_H */ -- cgit v1.2.3