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SUNRPC: Define rpcsec_gss_info structure

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The NFSv4 SECINFO procedure returns a list of security flavors.  Any
GSS flavor also has a GSS tuple containing an OID, a quality-of-
protection value, and a service value, which specifies a particular
GSS pseudoflavor.

For simplicity and efficiency, I'd like to return each GSS tuple
from the NFSv4 SECINFO XDR decoder and pass it straight into the RPC
client.

Define a data structure that is visible to both the NFS client and
the RPC client.  Take structure and field names from the relevant
standards to avoid confusion.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2013-03-16 15:54:34 -04:00 • committed by Trond Myklebust
parent 72f4dc117b
commit fb15b26f8b
5 changed files with 36 additions and 34 deletions
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14
include/linux/sunrpc/gss_api.h
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@ -25,10 +25,20 @@ struct gss_ctx {
#define GSS_C_NO_BUFFER ((struct xdr_netobj) 0)
#define GSS_C_NO_CONTEXT ((struct gss_ctx *) 0)
#define GSS_C_NULL_OID ((struct xdr_netobj) 0)
/*XXX arbitrary length - is this set somewhere? */
#define GSS_OID_MAX_LEN 32
struct rpcsec_gss_oid {
unsigned int len;
u8 data[GSS_OID_MAX_LEN];
};
/* From RFC 3530 */
struct rpcsec_gss_info {
struct rpcsec_gss_oid oid;
u32 qop;
u32 service;
};
/* gss-api prototypes; note that these are somewhat simplified versions of
* the prototypes specified in RFC 2744. */
@ -76,7 +86,7 @@ struct pf_desc {
struct gss_api_mech {
struct list_head gm_list;
struct module *gm_owner;
struct xdr_netobj gm_oid;
struct rpcsec_gss_oid gm_oid;
char *gm_name;
const struct gss_api_ops *gm_ops;
/* pseudoflavors supported by this mechanism: */