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sunrpc: Extract target name into svc_cred

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NFSv4.0 callback needs to know the GSS target name the client used
when it established its lease. That information is available from
the GSS context created by gssproxy. Make it available in each
svc_cred.

Note this will also give us access to the real target service
principal name (which is typically "nfs", but spec does not require
that).

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Chuck Lever
2018-08-16 12:05:59 -04:00
committed by J. Bruce Fields
parent a1a237775e
commit 9abdda5dda
3 changed files with 53 additions and 27 deletions
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3
include/linux/sunrpc/svcauth.h
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@@ -31,6 +31,7 @@ struct svc_cred {
/* name of form servicetype@hostname, passed down by
* rpc.svcgssd, or computed from the above: */
char *cr_principal;
char *cr_targ_princ;
struct gss_api_mech *cr_gss_mech;
};
@@ -39,6 +40,7 @@ static inline void init_svc_cred(struct svc_cred *cred)
cred->cr_group_info = NULL;
cred->cr_raw_principal = NULL;
cred->cr_principal = NULL;
cred->cr_targ_princ = NULL;
cred->cr_gss_mech = NULL;
}
@@ -48,6 +50,7 @@ static inline void free_svc_cred(struct svc_cred *cred)
put_group_info(cred->cr_group_info);
kfree(cred->cr_raw_principal);
kfree(cred->cr_principal);
kfree(cred->cr_targ_princ);
gss_mech_put(cred->cr_gss_mech);
init_svc_cred(cred);
}