3bc1197e3d
Move most of the NFS code into common files so that it can be used by an lwIP port of NFS. Acked-by: Jerome Forissier <jerome.forissier@linaro.org> Signed-off-by: Andrew Goodbody <andrew.goodbody@linaro.org>
124 lines
3.1 KiB
C
124 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Masami Komiya <mkomiya@sonare.it> 2004
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*/
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#ifndef __NFS_COMMON_H__
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#define __NFS_COMMON_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 HASHES_PER_LINE 65 /* Number of "loading" hashes per line */
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#define NFS_RETRY_COUNT 30
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#define NFS_RPC_ERR 1
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#define NFS_RPC_DROP 124
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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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/* 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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enum nfs_version {
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NFS_UNKOWN = 0,
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NFS_V1 = 1,
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NFS_V2 = 2,
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NFS_V3 = 3,
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};
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extern enum net_loop_state nfs_download_state;
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extern char *nfs_filename;
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extern char *nfs_path;
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extern char nfs_path_buff[2048];
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extern struct in_addr nfs_server_ip;
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extern int nfs_server_mount_port;
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extern int nfs_server_port;
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extern int nfs_our_port;
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extern int nfs_timeout_count;
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extern unsigned long rpc_id;
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extern int nfs_offset;
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extern int nfs_len;
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extern const ulong nfs_timeout;
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extern int nfs_state;
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#define STATE_PRCLOOKUP_PROG_MOUNT_REQ 1
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#define STATE_PRCLOOKUP_PROG_NFS_REQ 2
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#define STATE_MOUNT_REQ 3
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#define STATE_UMOUNT_REQ 4
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#define STATE_LOOKUP_REQ 5
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#define STATE_READ_REQ 6
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#define STATE_READLINK_REQ 7
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/*
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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, a bigger value could be used. In any
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* case, most NFS servers are optimized for a power of 2.
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*/
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#define NFS_READ_SIZE 1024 /* biggest power of two that fits Ether frame */
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#define NFS_MAX_ATTRS 26
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struct rpc_t {
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union {
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u8 data[NFS_READ_SIZE + (6 + NFS_MAX_ATTRS) *
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sizeof(uint32_t)];
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struct {
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u32 id;
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u32 type;
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u32 rpcvers;
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u32 prog;
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u32 vers;
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u32 proc;
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u32 data[1];
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} call;
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struct {
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u32 id;
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u32 type;
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u32 rstatus;
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u32 verifier;
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u32 v2;
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u32 astatus;
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u32 data[NFS_READ_SIZE / sizeof(u32) +
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NFS_MAX_ATTRS];
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} reply;
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} u;
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};
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char *nfs_basename(char *path);
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char *nfs_dirname(char *path);
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void rpc_req_common(int rpc_prog, int rpc_proc, uint32_t *data, int datalen,
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uchar *txbuff, int *pktlen, int *sport);
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void nfs_send(void);
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void nfs_pkt_recv(uchar *pkt, unsigned int len);
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extern enum nfs_version choosen_nfs_version;
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/*
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* Implementation specific functions called from common code
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*/
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void rpc_req(int rpc_prog, int rpc_proc, uint32_t *data, int datalen);
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void nfs_refresh_timeout(void);
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/**********************************************************************/
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#endif /* __NFS_COMMON_H__ */
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