de8fd9d88b
Add a new 'netproto' variable which can be set for now to NET_TFTP or NET_NFS (default to NET_NONE) From the dhcp options if one sets the root-path option to: "ip:path", the loader will consider it is booting over NFS (meaning same behaviour as the default current behaviour) if the dhcp option "tftp server address" is set (option 150) the loader will consider it is booting over tftpfs, it will then consider the root-path options with 2 possible case 1. "path" then the IP of the tftp server will be the one passed by the option 150, and the files will be retrieved under "path" on the tftp server 2. "ip:path" then the IP of the tftp server will be the one passed in the option "overwritting the IP from the option 150. We could not "abuse" the rootpath option in the form or tftp://ip:path because this is already used for other purpose by iPXE preventing any chainload from iPXE to the FreeBSD loader. Given at each open(), the loader loops over all available filesystems and keep the "best" error, we needed to prevent tftpfs to fallback on nfs and vice versa. the tftpfs and nfs implementation in libstand now return EINVAL early if 'netproto' for that purpose. Reviewed by: tsoome Relnotes: yes Sponsored by: Gandi.net Differential Revision: https://reviews.freebsd.org/D7628
148 lines
4.5 KiB
C
148 lines
4.5 KiB
C
/* $NetBSD: bootp.h,v 1.4 1997/09/06 13:55:57 drochner Exp $ */
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/*
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* Bootstrap Protocol (BOOTP). RFC951 and RFC1048.
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*
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* This file specifies the "implementation-independent" BOOTP protocol
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* information which is common to both client and server.
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*
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* Copyright 1988 by Carnegie Mellon.
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*
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* Permission to use, copy, modify, and distribute this program for any
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* purpose and without fee is hereby granted, provided that this copyright
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* and permission notice appear on all copies and supporting documentation,
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* the name of Carnegie Mellon not be used in advertising or publicity
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* pertaining to distribution of the program without specific prior
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* permission, and notice be given in supporting documentation that copying
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* and distribution is by permission of Carnegie Mellon and Stanford
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* University. Carnegie Mellon makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* $FreeBSD$
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*/
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struct bootp {
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unsigned char bp_op; /* packet opcode type */
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unsigned char bp_htype; /* hardware addr type */
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unsigned char bp_hlen; /* hardware addr length */
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unsigned char bp_hops; /* gateway hops */
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unsigned int bp_xid; /* transaction ID */
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unsigned short bp_secs; /* seconds since boot began */
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unsigned short bp_flags;
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struct in_addr bp_ciaddr; /* client IP address */
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struct in_addr bp_yiaddr; /* 'your' IP address */
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struct in_addr bp_siaddr; /* server IP address */
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struct in_addr bp_giaddr; /* gateway IP address */
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unsigned char bp_chaddr[16]; /* client hardware address */
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unsigned char bp_sname[64]; /* server host name */
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unsigned char bp_file[128]; /* boot file name */
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#ifdef SUPPORT_DHCP
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#define BOOTP_VENDSIZE 312
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#else
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#define BOOTP_VENDSIZE 64
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#endif
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unsigned char bp_vend[BOOTP_VENDSIZE]; /* vendor-specific area */
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};
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/*
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* UDP port numbers, server and client.
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*/
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#define IPPORT_BOOTPS 67
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#define IPPORT_BOOTPC 68
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#define BOOTREPLY 2
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#define BOOTREQUEST 1
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/*
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* Vendor magic cookie (v_magic) for CMU
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*/
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#define VM_CMU "CMU"
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/*
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* Vendor magic cookie (v_magic) for RFC1048
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*/
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#define VM_RFC1048 { 99, 130, 83, 99 }
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/*
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* RFC1048 tag values used to specify what information is being supplied in
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* the vendor field of the packet.
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*/
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#define TAG_PAD ((unsigned char) 0)
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#define TAG_SUBNET_MASK ((unsigned char) 1)
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#define TAG_TIME_OFFSET ((unsigned char) 2)
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#define TAG_GATEWAY ((unsigned char) 3)
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#define TAG_TIME_SERVER ((unsigned char) 4)
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#define TAG_NAME_SERVER ((unsigned char) 5)
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#define TAG_DOMAIN_SERVER ((unsigned char) 6)
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#define TAG_LOG_SERVER ((unsigned char) 7)
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#define TAG_COOKIE_SERVER ((unsigned char) 8)
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#define TAG_LPR_SERVER ((unsigned char) 9)
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#define TAG_IMPRESS_SERVER ((unsigned char) 10)
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#define TAG_RLP_SERVER ((unsigned char) 11)
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#define TAG_HOSTNAME ((unsigned char) 12)
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#define TAG_BOOTSIZE ((unsigned char) 13)
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#define TAG_DUMPFILE ((unsigned char) 14)
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#define TAG_DOMAINNAME ((unsigned char) 15)
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#define TAG_SWAPSERVER ((unsigned char) 16)
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#define TAG_ROOTPATH ((unsigned char) 17)
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#define TAG_INTF_MTU ((unsigned char) 26)
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#ifdef SUPPORT_DHCP
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#define TAG_REQ_ADDR ((unsigned char) 50)
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#define TAG_LEASETIME ((unsigned char) 51)
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#define TAG_OVERLOAD ((unsigned char) 52)
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#define TAG_DHCP_MSGTYPE ((unsigned char) 53)
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#define TAG_SERVERID ((unsigned char) 54)
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#define TAG_PARAM_REQ ((unsigned char) 55)
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#define TAG_MSG ((unsigned char) 56)
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#define TAG_MAXSIZE ((unsigned char) 57)
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#define TAG_T1 ((unsigned char) 58)
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#define TAG_T2 ((unsigned char) 59)
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#define TAG_CLASSID ((unsigned char) 60)
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#define TAG_CLIENTID ((unsigned char) 61)
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#define TAG_TFTP_SERVER ((unsigned char) 150)
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#endif
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#define TAG_END ((unsigned char) 255)
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#ifdef SUPPORT_DHCP
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#define DHCPDISCOVER 1
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#define DHCPOFFER 2
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#define DHCPREQUEST 3
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#define DHCPDECLINE 4
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#define DHCPACK 5
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#define DHCPNAK 6
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#define DHCPRELEASE 7
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#endif
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/*
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* bootp flags
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*/
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#define BOOTP_NONE 0x0000 /* No flags */
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#define BOOTP_PXE 0x0001 /* Booting from PXE. */
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/*
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* "vendor" data permitted for CMU bootp clients.
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*/
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struct cmu_vend {
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unsigned char v_magic[4]; /* magic number */
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unsigned int v_flags; /* flags/opcodes, etc. */
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struct in_addr v_smask; /* Subnet mask */
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struct in_addr v_dgate; /* Default gateway */
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struct in_addr v_dns1, v_dns2; /* Domain name servers */
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struct in_addr v_ins1, v_ins2; /* IEN-116 name servers */
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struct in_addr v_ts1, v_ts2; /* Time servers */
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unsigned char v_unused[25]; /* currently unused */
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};
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/* v_flags values */
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#define VF_SMASK 1 /* Subnet mask field contains valid data */
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