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NFS: Ensure NFSv4 SETCLIENTID send buffer is large enough

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Ensure that the RPC buffer size specified for NFSv4 SETCLIENTID procedures
matches what we are encoding into the buffer.  See the definition of
struct nfs4_setclientid {} and the encode_setclientid() function.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Chuck Lever 2007-12-10 14:56:54 -05:00 committed by Trond Myklebust
parent 0fb2b7e945
commit cc38bac3a0
2 changed files with 13 additions and 10 deletions
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10
fs/nfs/nfs4xdr.c
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@ -116,10 +116,12 @@ static int nfs4_stat_to_errno(int);
#define decode_renew_maxsz (op_decode_hdr_maxsz)
#define encode_setclientid_maxsz \
(op_encode_hdr_maxsz + \
4 /*server->ip_addr*/ + \
1 /*Netid*/ + \
6 /*uaddr*/ + \
6 + (NFS4_VERIFIER_SIZE >> 2))
XDR_QUADLEN(NFS4_VERIFIER_SIZE) + \
XDR_QUADLEN(NFS4_SETCLIENTID_NAMELEN) + \
1 /* sc_prog */ + \
XDR_QUADLEN(RPCBIND_MAXNETIDLEN) + \
XDR_QUADLEN(RPCBIND_MAXUADDRLEN) + \
1) /* sc_cb_ident */
#define decode_setclientid_maxsz \
(op_decode_hdr_maxsz + \
2 + \

13
include/linux/nfs_xdr.h
View File

@ -666,16 +666,17 @@ struct nfs4_rename_res {
struct nfs_fattr * new_fattr;
};
#define NFS4_SETCLIENTID_NAMELEN (48)
struct nfs4_setclientid {
const nfs4_verifier * sc_verifier; /* request */
const nfs4_verifier * sc_verifier;
unsigned int sc_name_len;
char sc_name[48]; /* request */
u32 sc_prog; /* request */
char sc_name[NFS4_SETCLIENTID_NAMELEN];
u32 sc_prog;
unsigned int sc_netid_len;
char sc_netid[4]; /* request */
char sc_netid[RPCBIND_MAXNETIDLEN];
unsigned int sc_uaddr_len;
char sc_uaddr[24]; /* request */
u32 sc_cb_ident; /* request */
char sc_uaddr[RPCBIND_MAXUADDRLEN];
u32 sc_cb_ident;
};
struct nfs4_statfs_arg {