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knfsd: nfsd4: parse secinfo information in exports downcall

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We add a list of pseudoflavors to each export downcall, which will be used
both as a list of security flavors allowed on that export, and (in the order
given) as the list of pseudoflavors to return on secinfo calls.

This patch parses the new downcall information and adds it to the export
structure, but doesn't use it for anything yet.

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Andy Adamson <andros@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Andy Adamson 2007-07-17 04:04:42 -07:00 • committed by Linus Torvalds
parent c4170583f6
commit e677bfe4d4
2 changed files with 71 additions and 2 deletions
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17
include/linux/nfsd/export.h
View file

@ -42,6 +42,8 @@
#define NFSEXP_NOACL 0x8000 /* reserved for possible ACL related use */
#define NFSEXP_ALLFLAGS 0xFE3F
/* The flags that may vary depending on security flavor: */
#define NFSEXP_SECINFO_FLAGS 0
#ifdef __KERNEL__
@ -64,6 +66,19 @@ struct nfsd4_fs_locations {
int migrated;
};
/*
* We keep an array of pseudoflavors with the export, in order from most
* to least preferred. For the forseeable future, we don't expect more
* than the eight pseudoflavors null, unix, krb5, krb5i, krb5p, skpm3,
* spkm3i, and spkm3p (and using all 8 at once should be rare).
*/
#define MAX_SECINFO_LIST 8
struct exp_flavor_info {
u32 pseudoflavor;
u32 flags;
};
struct svc_export {
struct cache_head h;
struct auth_domain * ex_client;
@ -76,6 +91,8 @@ struct svc_export {
int ex_fsid;
unsigned char * ex_uuid; /* 16 byte fsid */
struct nfsd4_fs_locations ex_fslocs;
int ex_nflavors;
struct exp_flavor_info ex_flavors[MAX_SECINFO_LIST];
};
/* an "export key" (expkey) maps a filehandlefragement to an