Add build system scaffolding and libc headers

1 files changed, 190 insertions, 0 deletions

diff --git a/include/arch/x86_64/linux/ip.h b/include/arch/x86_64/linux/ip.h
new file mode 100644
index 00000000..d48ff48c
--- /dev/null
+++ b/include/arch/x86_64/linux/ip.h
@@ -0,0 +1,190 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		Definitions for the IP protocol.
+ *
+ * Version:	@(#)ip.h	1.0.2	04/28/93
+ *
+ * Authors:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_IP_H
+#define _LINUX_IP_H
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <asm/byteorder.h>
+
+#define IPTOS_TOS_MASK	  0x1E
+#define IPTOS_TOS(tos)	  ((tos) & IPTOS_TOS_MASK)
+#define IPTOS_LOWDELAY	  0x10
+#define IPTOS_THROUGHPUT  0x08
+#define IPTOS_RELIABILITY 0x04
+#define IPTOS_MINCOST	  0x02
+
+#define IPTOS_PREC_MASK		   0xE0
+#define IPTOS_PREC(tos)		   ((tos) & IPTOS_PREC_MASK)
+#define IPTOS_PREC_NETCONTROL	   0xe0
+#define IPTOS_PREC_INTERNETCONTROL 0xc0
+#define IPTOS_PREC_CRITIC_ECP	   0xa0
+#define IPTOS_PREC_FLASHOVERRIDE   0x80
+#define IPTOS_PREC_FLASH	   0x60
+#define IPTOS_PREC_IMMEDIATE	   0x40
+#define IPTOS_PREC_PRIORITY	   0x20
+#define IPTOS_PREC_ROUTINE	   0x00
+
+/* IP options */
+#define IPOPT_COPY	  0x80
+#define IPOPT_CLASS_MASK  0x60
+#define IPOPT_NUMBER_MASK 0x1f
+
+#define IPOPT_COPIED(o) ((o) & IPOPT_COPY)
+#define IPOPT_CLASS(o)	((o) & IPOPT_CLASS_MASK)
+#define IPOPT_NUMBER(o) ((o) & IPOPT_NUMBER_MASK)
+
+#define IPOPT_CONTROL	  0x00
+#define IPOPT_RESERVED1	  0x20
+#define IPOPT_MEASUREMENT 0x40
+#define IPOPT_RESERVED2	  0x60
+
+#define IPOPT_END	(0 | IPOPT_CONTROL)
+#define IPOPT_NOOP	(1 | IPOPT_CONTROL)
+#define IPOPT_SEC	(2 | IPOPT_CONTROL | IPOPT_COPY)
+#define IPOPT_LSRR	(3 | IPOPT_CONTROL | IPOPT_COPY)
+#define IPOPT_TIMESTAMP (4 | IPOPT_MEASUREMENT)
+#define IPOPT_CIPSO	(6 | IPOPT_CONTROL | IPOPT_COPY)
+#define IPOPT_RR	(7 | IPOPT_CONTROL)
+#define IPOPT_SID	(8 | IPOPT_CONTROL | IPOPT_COPY)
+#define IPOPT_SSRR	(9 | IPOPT_CONTROL | IPOPT_COPY)
+#define IPOPT_RA	(20 | IPOPT_CONTROL | IPOPT_COPY)
+
+#define IPVERSION 4
+#define MAXTTL	  255
+#define IPDEFTTL  64
+
+#define IPOPT_OPTVAL 0
+#define IPOPT_OLEN   1
+#define IPOPT_OFFSET 2
+#define IPOPT_MINOFF 4
+#define MAX_IPOPTLEN 40
+#define IPOPT_NOP    IPOPT_NOOP
+#define IPOPT_EOL    IPOPT_END
+#define IPOPT_TS     IPOPT_TIMESTAMP
+
+#define IPOPT_TS_TSONLY	   0 /* timestamps only */
+#define IPOPT_TS_TSANDADDR 1 /* timestamps and addresses */
+#define IPOPT_TS_PRESPEC   3 /* specified modules only */
+
+#define IPV4_BEET_PHMAXLEN 8
+
+struct iphdr {
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+	__u8 ihl : 4, version : 4;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+	__u8 version : 4, ihl : 4;
+#else
+#error "Please fix <asm/byteorder.h>"
+#endif
+	__u8 tos;
+	__be16 tot_len;
+	__be16 id;
+	__be16 frag_off;
+	__u8 ttl;
+	__u8 protocol;
+	__sum16 check;
+	__struct_group(/* no tag */, addrs, /* no attrs */, __be32 saddr;
+		       __be32 daddr;);
+	/*The options start here. */
+};
+
+struct ip_auth_hdr {
+	__u8 nexthdr;
+	__u8 hdrlen; /* This one is measured in 32 bit units! */
+	__be16 reserved;
+	__be32 spi;
+	__be32 seq_no;	  /* Sequence number */
+	__u8 auth_data[]; /* Variable len but >=4. Mind the 64 bit alignment! */
+};
+
+struct ip_esp_hdr {
+	__be32 spi;
+	__be32 seq_no;	 /* Sequence number */
+	__u8 enc_data[]; /* Variable len but >=8. Mind the 64 bit alignment! */
+};
+
+struct ip_comp_hdr {
+	__u8 nexthdr;
+	__u8 flags;
+	__be16 cpi;
+};
+
+struct ip_beet_phdr {
+	__u8 nexthdr;
+	__u8 hdrlen;
+	__u8 padlen;
+	__u8 reserved;
+};
+
+struct ip_iptfs_hdr {
+	__u8 subtype; /* 0*: basic, 1: CC */
+	__u8 flags;
+	__be16 block_offset;
+};
+
+struct ip_iptfs_cc_hdr {
+	__u8 subtype; /* 0: basic, 1*: CC */
+	__u8 flags;
+	__be16 block_offset;
+	__be32 loss_rate;
+	__be64 rtt_adelay_xdelay;
+	__be32 tval;
+	__be32 techo;
+};
+
+/* index values for the variables in ipv4_devconf */
+enum {
+	IPV4_DEVCONF_FORWARDING = 1,
+	IPV4_DEVCONF_MC_FORWARDING,
+	IPV4_DEVCONF_PROXY_ARP,
+	IPV4_DEVCONF_ACCEPT_REDIRECTS,
+	IPV4_DEVCONF_SECURE_REDIRECTS,
+	IPV4_DEVCONF_SEND_REDIRECTS,
+	IPV4_DEVCONF_SHARED_MEDIA,
+	IPV4_DEVCONF_RP_FILTER,
+	IPV4_DEVCONF_ACCEPT_SOURCE_ROUTE,
+	IPV4_DEVCONF_BOOTP_RELAY,
+	IPV4_DEVCONF_LOG_MARTIANS,
+	IPV4_DEVCONF_TAG,
+	IPV4_DEVCONF_ARPFILTER,
+	IPV4_DEVCONF_MEDIUM_ID,
+	IPV4_DEVCONF_NOXFRM,
+	IPV4_DEVCONF_NOPOLICY,
+	IPV4_DEVCONF_FORCE_IGMP_VERSION,
+	IPV4_DEVCONF_ARP_ANNOUNCE,
+	IPV4_DEVCONF_ARP_IGNORE,
+	IPV4_DEVCONF_PROMOTE_SECONDARIES,
+	IPV4_DEVCONF_ARP_ACCEPT,
+	IPV4_DEVCONF_ARP_NOTIFY,
+	IPV4_DEVCONF_ACCEPT_LOCAL,
+	IPV4_DEVCONF_SRC_VMARK,
+	IPV4_DEVCONF_PROXY_ARP_PVLAN,
+	IPV4_DEVCONF_ROUTE_LOCALNET,
+	IPV4_DEVCONF_IGMPV2_UNSOLICITED_REPORT_INTERVAL,
+	IPV4_DEVCONF_IGMPV3_UNSOLICITED_REPORT_INTERVAL,
+	IPV4_DEVCONF_IGNORE_ROUTES_WITH_LINKDOWN,
+	IPV4_DEVCONF_DROP_UNICAST_IN_L2_MULTICAST,
+	IPV4_DEVCONF_DROP_GRATUITOUS_ARP,
+	IPV4_DEVCONF_BC_FORWARDING,
+	IPV4_DEVCONF_ARP_EVICT_NOCARRIER,
+	__IPV4_DEVCONF_MAX
+};
+
+#define IPV4_DEVCONF_MAX (__IPV4_DEVCONF_MAX - 1)
+
+#endif /* _LINUX_IP_H */