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svcrpc: store gss mech in svc_cred

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Store a pointer to the gss mechanism used in the rq_cred and cl_cred.
This will make it easier to enforce SP4_MACH_CRED, which needs to
compare the mechanism used on the exchange_id with that used on
protected operations.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
J. Bruce Fields
2013-05-14 16:07:13 -04:00
parent 4423406391
commit 0dc1531aca
5 changed files with 14 additions and 4 deletions
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3
fs/nfsd/nfs4state.c
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@@ -1188,6 +1188,9 @@ static int copy_cred(struct svc_cred *target, struct svc_cred *source)
target->cr_gid = source->cr_gid;
target->cr_group_info = source->cr_group_info;
get_group_info(target->cr_group_info);
target->cr_gss_mech = source->cr_gss_mech;
if (source->cr_gss_mech)
gss_mech_get(source->cr_gss_mech);
return 0;
}