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[PATCH] knfsd: nfsd4: add find_{un}conf_by_str functions to simplify setclientid

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Minor setclientid cleanup

Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown 2005-06-23 22:03:56 -07:00 committed by Linus Torvalds
parent a55370a3c0
commit 28ce6054f1
1 changed files with 31 additions and 18 deletions
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49
fs/nfsd/nfs4state.c
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@ -509,6 +509,30 @@ find_unconfirmed_client(clientid_t *clid)
return NULL;
}
static struct nfs4_client *
find_confirmed_client_by_str(const char *dname, unsigned int hashval)
{
struct nfs4_client *clp;
list_for_each_entry(clp, &conf_str_hashtbl[hashval], cl_strhash) {
if (same_name(clp->cl_recdir, dname))
return clp;
}
return NULL;
}
static struct nfs4_client *
find_unconfirmed_client_by_str(const char *dname, unsigned int hashval)
{
struct nfs4_client *clp;
list_for_each_entry(clp, &unconf_str_hashtbl[hashval], cl_strhash) {
if (same_name(clp->cl_recdir, dname))
return clp;
}
return NULL;
}
/* a helper function for parse_callback */
static int
parse_octet(unsigned int *lenp, char **addrp)
@ -647,7 +671,7 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
};
nfs4_verifier clverifier = setclid->se_verf;
unsigned int strhashval;
struct nfs4_client * conf, * unconf, * new, * clp;
struct nfs4_client *conf, *unconf, *new;
int status;
char dname[HEXDIR_LEN];
@ -666,35 +690,24 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
strhashval = clientstr_hashval(dname);
conf = NULL;
nfs4_lock_state();
list_for_each_entry(clp, &conf_str_hashtbl[strhashval], cl_strhash) {
if (!same_name(clp->cl_recdir, dname))
continue;
conf = find_confirmed_client_by_str(dname, strhashval);
if (conf) {
/*
* CASE 0:
* clname match, confirmed, different principal
* or different ip_address
*/
status = nfserr_clid_inuse;
if (!cmp_creds(&clp->cl_cred,&rqstp->rq_cred)
|| clp->cl_addr != ip_addr) {
if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
|| conf->cl_addr != ip_addr) {
printk("NFSD: setclientid: string in use by client"
"(clientid %08x/%08x)\n",
clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
conf->cl_clientid.cl_boot, conf->cl_clientid.cl_id);
goto out;
}
conf = clp;
break;
}
unconf = NULL;
list_for_each_entry(clp, &unconf_str_hashtbl[strhashval], cl_strhash) {
if (!same_name(clp->cl_recdir, dname))
continue;
/* cl_name match from a previous SETCLIENTID operation */
unconf = clp;
break;
}
unconf = find_unconfirmed_client_by_str(dname, strhashval);
status = nfserr_resource;
if (!conf) {
/*