SUNRPC: Refactor nfsd4_do_encode_secinfo()
Clean up. This matches a similar API for the client side, and keeps ULP fingers out the of the GSS mech switch. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Acked-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
parent
83523d083a
commit
a77c806fb9
|
@ -3138,10 +3138,9 @@ nfsd4_encode_rename(struct nfsd4_compoundres *resp, __be32 nfserr, struct nfsd4_
|
|||
|
||||
static __be32
|
||||
nfsd4_do_encode_secinfo(struct nfsd4_compoundres *resp,
|
||||
__be32 nfserr,struct svc_export *exp)
|
||||
__be32 nfserr, struct svc_export *exp)
|
||||
{
|
||||
int i = 0;
|
||||
u32 nflavs;
|
||||
u32 i, nflavs;
|
||||
struct exp_flavor_info *flavs;
|
||||
struct exp_flavor_info def_flavs[2];
|
||||
__be32 *p;
|
||||
|
@ -3172,30 +3171,29 @@ nfsd4_do_encode_secinfo(struct nfsd4_compoundres *resp,
|
|||
WRITE32(nflavs);
|
||||
ADJUST_ARGS();
|
||||
for (i = 0; i < nflavs; i++) {
|
||||
u32 flav = flavs[i].pseudoflavor;
|
||||
struct gss_api_mech *gm = gss_mech_get_by_pseudoflavor(flav);
|
||||
struct rpcsec_gss_info info;
|
||||
|
||||
if (gm) {
|
||||
if (rpcauth_get_gssinfo(flavs[i].pseudoflavor, &info) == 0) {
|
||||
RESERVE_SPACE(4);
|
||||
WRITE32(RPC_AUTH_GSS);
|
||||
ADJUST_ARGS();
|
||||
RESERVE_SPACE(4 + gm->gm_oid.len);
|
||||
WRITE32(gm->gm_oid.len);
|
||||
WRITEMEM(gm->gm_oid.data, gm->gm_oid.len);
|
||||
RESERVE_SPACE(4 + info.oid.len);
|
||||
WRITE32(info.oid.len);
|
||||
WRITEMEM(info.oid.data, info.oid.len);
|
||||
ADJUST_ARGS();
|
||||
RESERVE_SPACE(4);
|
||||
WRITE32(0); /* qop */
|
||||
WRITE32(info.qop);
|
||||
ADJUST_ARGS();
|
||||
RESERVE_SPACE(4);
|
||||
WRITE32(gss_pseudoflavor_to_service(gm, flav));
|
||||
WRITE32(info.service);
|
||||
ADJUST_ARGS();
|
||||
gss_mech_put(gm);
|
||||
} else {
|
||||
RESERVE_SPACE(4);
|
||||
WRITE32(flav);
|
||||
WRITE32(flavs[i].pseudoflavor);
|
||||
ADJUST_ARGS();
|
||||
}
|
||||
}
|
||||
|
||||
out:
|
||||
if (exp)
|
||||
exp_put(exp);
|
||||
|
|
|
@ -106,6 +106,8 @@ struct rpc_authops {
|
|||
void (*pipes_destroy)(struct rpc_auth *);
|
||||
int (*list_pseudoflavors)(rpc_authflavor_t *, int);
|
||||
rpc_authflavor_t (*info2flavor)(struct rpcsec_gss_info *);
|
||||
int (*flavor2info)(rpc_authflavor_t,
|
||||
struct rpcsec_gss_info *);
|
||||
};
|
||||
|
||||
struct rpc_credops {
|
||||
|
@ -142,6 +144,8 @@ struct rpc_auth * rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
|
|||
void rpcauth_release(struct rpc_auth *);
|
||||
rpc_authflavor_t rpcauth_get_pseudoflavor(rpc_authflavor_t,
|
||||
struct rpcsec_gss_info *);
|
||||
int rpcauth_get_gssinfo(rpc_authflavor_t,
|
||||
struct rpcsec_gss_info *);
|
||||
int rpcauth_list_flavors(rpc_authflavor_t *, int);
|
||||
struct rpc_cred * rpcauth_lookup_credcache(struct rpc_auth *, struct auth_cred *, int);
|
||||
void rpcauth_init_cred(struct rpc_cred *, const struct auth_cred *, struct rpc_auth *, const struct rpc_credops *);
|
||||
|
|
|
@ -133,6 +133,9 @@ void gss_mech_unregister(struct gss_api_mech *);
|
|||
/* Given a GSS security tuple, look up a pseudoflavor */
|
||||
rpc_authflavor_t gss_mech_info2flavor(struct rpcsec_gss_info *);
|
||||
|
||||
/* Given a pseudoflavor, look up a GSS security tuple */
|
||||
int gss_mech_flavor2info(rpc_authflavor_t, struct rpcsec_gss_info *);
|
||||
|
||||
/* Returns a reference to a mechanism, given a name like "krb5" etc. */
|
||||
struct gss_api_mech *gss_mech_get_by_name(const char *);
|
||||
|
||||
|
|
|
@ -158,6 +158,41 @@ rpcauth_get_pseudoflavor(rpc_authflavor_t flavor, struct rpcsec_gss_info *info)
|
|||
}
|
||||
EXPORT_SYMBOL_GPL(rpcauth_get_pseudoflavor);
|
||||
|
||||
/**
|
||||
* rpcauth_get_gssinfo - find GSS tuple matching a GSS pseudoflavor
|
||||
* @pseudoflavor: GSS pseudoflavor to match
|
||||
* @info: rpcsec_gss_info structure to fill in
|
||||
*
|
||||
* Returns zero and fills in "info" if pseudoflavor matches a
|
||||
* supported mechanism.
|
||||
*/
|
||||
int
|
||||
rpcauth_get_gssinfo(rpc_authflavor_t pseudoflavor, struct rpcsec_gss_info *info)
|
||||
{
|
||||
rpc_authflavor_t flavor = pseudoflavor_to_flavor(pseudoflavor);
|
||||
const struct rpc_authops *ops;
|
||||
int result;
|
||||
|
||||
ops = auth_flavors[flavor];
|
||||
if (ops == NULL)
|
||||
request_module("rpc-auth-%u", flavor);
|
||||
spin_lock(&rpc_authflavor_lock);
|
||||
ops = auth_flavors[flavor];
|
||||
if (ops == NULL || !try_module_get(ops->owner)) {
|
||||
spin_unlock(&rpc_authflavor_lock);
|
||||
return -ENOENT;
|
||||
}
|
||||
spin_unlock(&rpc_authflavor_lock);
|
||||
|
||||
result = -ENOENT;
|
||||
if (ops->flavor2info != NULL)
|
||||
result = ops->flavor2info(pseudoflavor, info);
|
||||
|
||||
module_put(ops->owner);
|
||||
return result;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(rpcauth_get_gssinfo);
|
||||
|
||||
/**
|
||||
* rpcauth_list_flavors - discover registered flavors and pseudoflavors
|
||||
* @array: array to fill in
|
||||
|
|
|
@ -1642,6 +1642,7 @@ static const struct rpc_authops authgss_ops = {
|
|||
.pipes_destroy = gss_pipes_dentries_destroy,
|
||||
.list_pseudoflavors = gss_mech_list_pseudoflavors,
|
||||
.info2flavor = gss_mech_info2flavor,
|
||||
.flavor2info = gss_mech_flavor2info,
|
||||
};
|
||||
|
||||
static const struct rpc_credops gss_credops = {
|
||||
|
|
|
@ -240,8 +240,6 @@ gss_mech_get_by_pseudoflavor(u32 pseudoflavor)
|
|||
return gm;
|
||||
}
|
||||
|
||||
EXPORT_SYMBOL_GPL(gss_mech_get_by_pseudoflavor);
|
||||
|
||||
/**
|
||||
* gss_mech_list_pseudoflavors - Discover registered GSS pseudoflavors
|
||||
* @array: array to fill in
|
||||
|
@ -315,6 +313,39 @@ rpc_authflavor_t gss_mech_info2flavor(struct rpcsec_gss_info *info)
|
|||
return pseudoflavor;
|
||||
}
|
||||
|
||||
/**
|
||||
* gss_mech_flavor2info - look up a GSS tuple for a given pseudoflavor
|
||||
* @pseudoflavor: GSS pseudoflavor to match
|
||||
* @info: rpcsec_gss_info structure to fill in
|
||||
*
|
||||
* Returns zero and fills in "info" if pseudoflavor matches a
|
||||
* supported mechanism. Otherwise a negative errno is returned.
|
||||
*/
|
||||
int gss_mech_flavor2info(rpc_authflavor_t pseudoflavor,
|
||||
struct rpcsec_gss_info *info)
|
||||
{
|
||||
struct gss_api_mech *gm;
|
||||
int i;
|
||||
|
||||
gm = gss_mech_get_by_pseudoflavor(pseudoflavor);
|
||||
if (gm == NULL)
|
||||
return -ENOENT;
|
||||
|
||||
for (i = 0; i < gm->gm_pf_num; i++) {
|
||||
if (gm->gm_pfs[i].pseudoflavor == pseudoflavor) {
|
||||
memcpy(info->oid.data, gm->gm_oid.data, gm->gm_oid.len);
|
||||
info->oid.len = gm->gm_oid.len;
|
||||
info->qop = gm->gm_pfs[i].qop;
|
||||
info->service = gm->gm_pfs[i].service;
|
||||
gss_mech_put(gm);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
gss_mech_put(gm);
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
u32
|
||||
gss_pseudoflavor_to_service(struct gss_api_mech *gm, u32 pseudoflavor)
|
||||
{
|
||||
|
|
Loading…
Reference in a new issue