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Attila Bogar and Herbert Poeckl both reported similar problems

Browse Source 
w.r.t. a Linux NFS client doing a krb5 NFS mount against the
FreeBSD server. We determined this was a Linux bug:
http://www.spinics.net/lists/linux-nfs/msg32466.html, however
the mount failed to work, because the Destroy operation with a
bogus encrypted checksum destroyed the authenticator handle.
This patch changes the rpcsec_gss code so that it doesn't
Destroy the authenticator handle for this case and, as such,
the Linux mount will work.

Tested by: Attila Bogar and Herbert Poeckl
MFC after:	2 weeks
This commit is contained in:
rmacklem 2012-10-01 12:28:58 +00:00
parent 53bc32bb8f
commit 9290b3731b
1 changed files with 4 additions and 3 deletions
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7
sys/rpc/rpcsec_gss/svc_rpcsec_gss.c
View File

@ -984,7 +984,7 @@ svc_rpc_gss_accept_sec_context(struct svc_rpc_gss_client *client,
static bool_t
svc_rpc_gss_validate(struct svc_rpc_gss_client *client, struct rpc_msg *msg,
gss_qop_t *qop)
gss_qop_t *qop, rpc_gss_proc_t gcproc)
{
struct opaque_auth *oa;
gss_buffer_desc rpcbuf, checksum;
@ -1024,7 +1024,8 @@ svc_rpc_gss_validate(struct svc_rpc_gss_client *client, struct rpc_msg *msg,
if (maj_stat != GSS_S_COMPLETE) {
rpc_gss_log_status("gss_verify_mic", client->cl_mech,
maj_stat, min_stat);
client->cl_state = CLIENT_STALE;
if (gcproc != RPCSEC_GSS_DESTROY)
client->cl_state = CLIENT_STALE;
return (FALSE);
}
@ -1358,7 +1359,7 @@ svc_rpc_gss(struct svc_req *rqst, struct rpc_msg *msg)
break;
}
if (!svc_rpc_gss_validate(client, msg, &qop)) {
if (!svc_rpc_gss_validate(client, msg, &qop, gc.gc_proc)) {
result = RPCSEC_GSS_CREDPROBLEM;
break;
}