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nfsd41: add flag checking for create_session

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Teach the NFS server to reject invalid create_session flags.

Also do some minor formatting adjustments.

Signed-off-by: Mi Jinlong <mijinlong@cn.fujitsu.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Mi Jinlong 2011-03-23 17:57:07 +08:00 • committed by J. Bruce Fields
parent ac6721a13e
commit a62573dc35
2 changed files with 8 additions and 3 deletions
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3
fs/nfsd/nfs4state.c
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@ -1515,6 +1515,9 @@ nfsd4_create_session(struct svc_rqst *rqstp,
bool confirm_me = false; bool confirm_me = false;
int status = 0; int status = 0;
if (cr_ses->flags & ~SESSION4_FLAG_MASK_A)
return nfserr_inval;
nfs4_lock_state(); nfs4_lock_state();
unconf = find_unconfirmed_client(&cr_ses->clientid); unconf = find_unconfirmed_client(&cr_ses->clientid);
conf = find_confirmed_client(&cr_ses->clientid); conf = find_confirmed_client(&cr_ses->clientid);

8
include/linux/nfs4.h
View file

@ -570,9 +570,11 @@ struct nfs4_sessionid {
}; };
/* Create Session Flags */ /* Create Session Flags */
#define SESSION4_PERSIST 0x001 #define SESSION4_PERSIST 0x001
#define SESSION4_BACK_CHAN 0x002 #define SESSION4_BACK_CHAN 0x002
#define SESSION4_RDMA 0x004 #define SESSION4_RDMA 0x004
#define SESSION4_FLAG_MASK_A 0x007
enum state_protect_how4 { enum state_protect_how4 {
SP4_NONE = 0, SP4_NONE = 0,