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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 423 | giacomo | 1 | /* |
| 2 | * include/linux/nfsd/syscall.h |
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| 3 | * |
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| 4 | * This file holds all declarations for the knfsd syscall interface. |
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| 5 | * |
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| 6 | * Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> |
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| 7 | */ |
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| 8 | |||
| 9 | #ifndef NFSD_SYSCALL_H |
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| 10 | #define NFSD_SYSCALL_H |
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| 11 | |||
| 12 | #include <asm/types.h> |
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| 13 | #ifdef __KERNEL__ |
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| 14 | # include <linux/config.h> |
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| 15 | # include <linux/types.h> |
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| 16 | # include <linux/in.h> |
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| 17 | #endif |
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| 18 | #include <linux/posix_types.h> |
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| 19 | #include <linux/nfsd/const.h> |
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| 20 | #include <linux/nfsd/export.h> |
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| 21 | #include <linux/nfsd/nfsfh.h> |
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| 22 | #include <linux/nfsd/auth.h> |
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| 23 | |||
| 24 | /* |
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| 25 | * Version of the syscall interface |
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| 26 | */ |
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| 27 | #define NFSCTL_VERSION 0x0201 |
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| 28 | |||
| 29 | /* |
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| 30 | * These are the commands understood by nfsctl(). |
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| 31 | */ |
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| 32 | #define NFSCTL_SVC 0 /* This is a server process. */ |
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| 33 | #define NFSCTL_ADDCLIENT 1 /* Add an NFS client. */ |
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| 34 | #define NFSCTL_DELCLIENT 2 /* Remove an NFS client. */ |
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| 35 | #define NFSCTL_EXPORT 3 /* export a file system. */ |
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| 36 | #define NFSCTL_UNEXPORT 4 /* unexport a file system. */ |
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| 37 | /*#define NFSCTL_UGIDUPDATE 5 / * update a client's uid/gid map. DISCARDED */ |
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| 38 | /*#define NFSCTL_GETFH 6 / * get an fh by ino DISCARDED */ |
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| 39 | #define NFSCTL_GETFD 7 /* get an fh by path (used by mountd) */ |
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| 40 | #define NFSCTL_GETFS 8 /* get an fh by path with max FH len */ |
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| 41 | |||
| 42 | /* SVC */ |
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| 43 | struct nfsctl_svc { |
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| 44 | unsigned short svc_port; |
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| 45 | int svc_nthreads; |
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| 46 | }; |
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| 47 | |||
| 48 | /* ADDCLIENT/DELCLIENT */ |
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| 49 | struct nfsctl_client { |
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| 50 | char cl_ident[NFSCLNT_IDMAX+1]; |
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| 51 | int cl_naddr; |
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| 52 | struct in_addr cl_addrlist[NFSCLNT_ADDRMAX]; |
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| 53 | int cl_fhkeytype; |
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| 54 | int cl_fhkeylen; |
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| 55 | unsigned char cl_fhkey[NFSCLNT_KEYMAX]; |
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| 56 | }; |
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| 57 | |||
| 58 | /* EXPORT/UNEXPORT */ |
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| 59 | struct nfsctl_export { |
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| 60 | char ex_client[NFSCLNT_IDMAX+1]; |
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| 61 | char ex_path[NFS_MAXPATHLEN+1]; |
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| 62 | __kernel_old_dev_t ex_dev; |
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| 63 | __kernel_ino_t ex_ino; |
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| 64 | int ex_flags; |
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| 65 | __kernel_uid_t ex_anon_uid; |
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| 66 | __kernel_gid_t ex_anon_gid; |
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| 67 | }; |
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| 68 | |||
| 69 | /* GETFD */ |
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| 70 | struct nfsctl_fdparm { |
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| 71 | struct sockaddr gd_addr; |
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| 72 | char gd_path[NFS_MAXPATHLEN+1]; |
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| 73 | int gd_version; |
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| 74 | }; |
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| 75 | |||
| 76 | /* GETFS - GET Filehandle with Size */ |
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| 77 | struct nfsctl_fsparm { |
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| 78 | struct sockaddr gd_addr; |
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| 79 | char gd_path[NFS_MAXPATHLEN+1]; |
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| 80 | int gd_maxlen; |
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| 81 | }; |
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| 82 | |||
| 83 | /* |
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| 84 | * This is the argument union. |
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| 85 | */ |
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| 86 | struct nfsctl_arg { |
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| 87 | int ca_version; /* safeguard */ |
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| 88 | union { |
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| 89 | struct nfsctl_svc u_svc; |
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| 90 | struct nfsctl_client u_client; |
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| 91 | struct nfsctl_export u_export; |
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| 92 | struct nfsctl_fdparm u_getfd; |
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| 93 | struct nfsctl_fsparm u_getfs; |
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| 94 | /* |
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| 95 | * The following dummy member is needed to preserve binary compatibility |
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| 96 | * on platforms where alignof(void*)>alignof(int). It's needed because |
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| 97 | * this union used to contain a member (u_umap) which contained a |
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| 98 | * pointer. |
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| 99 | */ |
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| 100 | void *u_ptr; |
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| 101 | } u; |
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| 102 | #define ca_svc u.u_svc |
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| 103 | #define ca_client u.u_client |
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| 104 | #define ca_export u.u_export |
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| 105 | #define ca_getfd u.u_getfd |
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| 106 | #define ca_getfs u.u_getfs |
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| 107 | }; |
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| 108 | |||
| 109 | union nfsctl_res { |
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| 110 | __u8 cr_getfh[NFS_FHSIZE]; |
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| 111 | struct knfsd_fh cr_getfs; |
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| 112 | }; |
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| 113 | |||
| 114 | #ifdef __KERNEL__ |
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| 115 | /* |
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| 116 | * Kernel syscall implementation. |
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| 117 | */ |
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| 118 | extern asmlinkage long sys_nfsservctl(int, struct nfsctl_arg __user *, void __user *); |
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| 119 | extern int exp_addclient(struct nfsctl_client *ncp); |
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| 120 | extern int exp_delclient(struct nfsctl_client *ncp); |
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| 121 | extern int exp_export(struct nfsctl_export *nxp); |
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| 122 | extern int exp_unexport(struct nfsctl_export *nxp); |
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| 123 | |||
| 124 | #endif /* __KERNEL__ */ |
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| 125 | |||
| 126 | #endif /* NFSD_SYSCALL_H */ |