author | Florian Westphal <fw@strlen.de> |
Thu, 09 Apr 2009 12:07:21 +0200 | |
changeset 2 | d1f6d8b6f81c |
parent 0 | aa628870c1d3 |
permissions | -rw-r--r-- |
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Port of Linux 2.6.28 for use with network simulation cradle.
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parents:
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/* |
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* include/linux/nfsd/export.h |
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* |
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* Public declarations for NFS exports. The definitions for the |
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* syscall interface are in nfsctl.h |
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* |
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* Copyright (C) 1995-1997 Olaf Kirch <okir@monad.swb.de> |
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*/ |
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Port of Linux 2.6.28 for use with network simulation cradle.
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|
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#ifndef NFSD_EXPORT_H |
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#define NFSD_EXPORT_H |
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# include <linux/types.h> |
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#ifdef __KERNEL__ |
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# include <linux/in.h> |
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#endif |
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|
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/* |
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* Important limits for the exports stuff. |
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*/ |
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#define NFSCLNT_IDMAX 1024 |
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#define NFSCLNT_ADDRMAX 16 |
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#define NFSCLNT_KEYMAX 32 |
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|
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/* |
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* Export flags. |
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*/ |
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#define NFSEXP_READONLY 0x0001 |
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#define NFSEXP_INSECURE_PORT 0x0002 |
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#define NFSEXP_ROOTSQUASH 0x0004 |
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#define NFSEXP_ALLSQUASH 0x0008 |
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#define NFSEXP_ASYNC 0x0010 |
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#define NFSEXP_GATHERED_WRITES 0x0020 |
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/* 40 80 100 currently unused */ |
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#define NFSEXP_NOHIDE 0x0200 |
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#define NFSEXP_NOSUBTREECHECK 0x0400 |
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#define NFSEXP_NOAUTHNLM 0x0800 /* Don't authenticate NLM requests - just trust */ |
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#define NFSEXP_MSNFS 0x1000 /* do silly things that MS clients expect */ |
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#define NFSEXP_FSID 0x2000 |
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#define NFSEXP_CROSSMOUNT 0x4000 |
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#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */ |
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#define NFSEXP_ALLFLAGS 0xFE3F |
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|
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/* The flags that may vary depending on security flavor: */ |
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#define NFSEXP_SECINFO_FLAGS (NFSEXP_READONLY | NFSEXP_ROOTSQUASH \ |
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| NFSEXP_ALLSQUASH) |
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|
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#ifdef __KERNEL__ |
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|
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/* |
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* FS Locations |
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*/ |
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|
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#define MAX_FS_LOCATIONS 128 |
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|
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struct nfsd4_fs_location { |
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char *hosts; /* colon separated list of hosts */ |
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char *path; /* slash separated list of path components */ |
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}; |
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struct nfsd4_fs_locations { |
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uint32_t locations_count; |
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struct nfsd4_fs_location *locations; |
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/* If we're not actually serving this data ourselves (only providing a |
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* list of replicas that do serve it) then we set "migrated": */ |
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int migrated; |
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}; |
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/* |
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* We keep an array of pseudoflavors with the export, in order from most |
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* to least preferred. For the forseeable future, we don't expect more |
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* than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3, |
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* spkm3i, and spkm3p (and using all 8 at once should be rare). |
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*/ |
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#define MAX_SECINFO_LIST 8 |
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struct exp_flavor_info { |
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u32 pseudoflavor; |
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u32 flags; |
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}; |
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struct svc_export { |
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struct cache_head h; |
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struct auth_domain * ex_client; |
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int ex_flags; |
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struct path ex_path; |
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char *ex_pathname; |
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uid_t ex_anon_uid; |
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gid_t ex_anon_gid; |
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int ex_fsid; |
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unsigned char * ex_uuid; /* 16 byte fsid */ |
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struct nfsd4_fs_locations ex_fslocs; |
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int ex_nflavors; |
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struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST]; |
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}; |
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/* an "export key" (expkey) maps a filehandlefragement to an |
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* svc_export for a given client. There can be several per export, |
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* for the different fsid types. |
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*/ |
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struct svc_expkey { |
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struct cache_head h; |
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struct auth_domain * ek_client; |
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int ek_fsidtype; |
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u32 ek_fsid[6]; |
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struct path ek_path; |
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}; |
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#define EX_SECURE(exp) (!((exp)->ex_flags & NFSEXP_INSECURE_PORT)) |
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#define EX_ISSYNC(exp) (!((exp)->ex_flags & NFSEXP_ASYNC)) |
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#define EX_NOHIDE(exp) ((exp)->ex_flags & NFSEXP_NOHIDE) |
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#define EX_WGATHER(exp) ((exp)->ex_flags & NFSEXP_GATHERED_WRITES) |
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int nfsexp_flags(struct svc_rqst *rqstp, struct svc_export *exp); |
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__be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp); |
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/* |
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* Function declarations |
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*/ |
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int nfsd_export_init(void); |
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void nfsd_export_shutdown(void); |
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void nfsd_export_flush(void); |
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void exp_readlock(void); |
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void exp_readunlock(void); |
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struct svc_export * rqst_exp_get_by_name(struct svc_rqst *, |
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struct vfsmount *, |
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struct dentry *); |
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struct svc_export * rqst_exp_parent(struct svc_rqst *, |
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struct vfsmount *mnt, |
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struct dentry *dentry); |
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int exp_rootfh(struct auth_domain *, |
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char *path, struct knfsd_fh *, int maxsize); |
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__be32 exp_pseudoroot(struct svc_rqst *, struct svc_fh *); |
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__be32 nfserrno(int errno); |
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extern struct cache_detail svc_export_cache; |
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static inline void exp_put(struct svc_export *exp) |
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{ |
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cache_put(&exp->h, &svc_export_cache); |
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} |
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static inline void exp_get(struct svc_export *exp) |
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{ |
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cache_get(&exp->h); |
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} |
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struct svc_export * rqst_exp_find(struct svc_rqst *, int, u32 *); |
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#endif /* __KERNEL__ */ |
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#endif /* NFSD_EXPORT_H */ |
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