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https://github.com/brain-hackers/u-boot-brain
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b0baca9820
This patch enables NFSv3 support. If NFSv2 is available use it as usual. If NFSv2 is not available, but NFSv3 is available, use NFSv3. If NFSv2 and NFSv3 are not available, print an error message since NFSv4 is not supported. Tested on iMX6 sabrelite with 4 Linux NFS servers: * NFSv2 + NFSv3 + NFSv4 server: use NFSv2 protocol * NFSv2 + NFSv3 server: use NFSv2 protocol * NFSv3 + NFSv4 server: use NFSv3 protocol * NFSv3 server: use NFSv3 protocol Signed-off-by: Guillaume GARDET <guillaume.gardet@free.fr> Cc: Tom Rini <trini@konsulko.com> Cc: joe.hershberger@ni.com Acked-by: Joe Hershberger <joe.hershberger@ni.com>
89 lines
2.1 KiB
C
89 lines
2.1 KiB
C
/*
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* (C) Masami Komiya <mkomiya@sonare.it> 2004
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __NFS_H__
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#define __NFS_H__
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#define SUNRPC_PORT 111
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#define PROG_PORTMAP 100000
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#define PROG_NFS 100003
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#define PROG_MOUNT 100005
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#define MSG_CALL 0
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#define MSG_REPLY 1
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#define PORTMAP_GETPORT 3
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#define MOUNT_ADDENTRY 1
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#define MOUNT_UMOUNTALL 4
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#define NFS_LOOKUP 4
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#define NFS_READLINK 5
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#define NFS_READ 6
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#define NFS3PROC_LOOKUP 3
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#define NFS_FHSIZE 32
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#define NFS3_FHSIZE 64
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#define NFSERR_PERM 1
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#define NFSERR_NOENT 2
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#define NFSERR_ACCES 13
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#define NFSERR_ISDIR 21
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#define NFSERR_INVAL 22
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/* Block size used for NFS read accesses. A RPC reply packet (including all
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* headers) must fit within a single Ethernet frame to avoid fragmentation.
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* However, if CONFIG_IP_DEFRAG is set, the config file may want to use a
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* bigger value. In any case, most NFS servers are optimized for a power of 2.
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*/
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#ifdef CONFIG_NFS_READ_SIZE
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#define NFS_READ_SIZE CONFIG_NFS_READ_SIZE
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#else
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#define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */
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#endif
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/* Values for Accept State flag on RPC answers (See: rfc1831) */
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enum rpc_accept_stat {
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NFS_RPC_SUCCESS = 0, /* RPC executed successfully */
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NFS_RPC_PROG_UNAVAIL = 1, /* remote hasn't exported program */
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NFS_RPC_PROG_MISMATCH = 2, /* remote can't support version # */
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NFS_RPC_PROC_UNAVAIL = 3, /* program can't support procedure */
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NFS_RPC_GARBAGE_ARGS = 4, /* procedure can't decode params */
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NFS_RPC_SYSTEM_ERR = 5 /* errors like memory allocation failure */
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};
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struct rpc_t {
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union {
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uint8_t data[2048];
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struct {
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uint32_t id;
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uint32_t type;
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uint32_t rpcvers;
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uint32_t prog;
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uint32_t vers;
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uint32_t proc;
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uint32_t data[1];
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} call;
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struct {
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uint32_t id;
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uint32_t type;
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uint32_t rstatus;
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uint32_t verifier;
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uint32_t v2;
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uint32_t astatus;
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uint32_t data[NFS_READ_SIZE];
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} reply;
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} u;
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};
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void nfs_start(void); /* Begin NFS */
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/**********************************************************************/
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#endif /* __NFS_H__ */
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