diff options
Diffstat (limited to 'fs/nfsd/nfs4proc.c')
| -rw-r--r-- | fs/nfsd/nfs4proc.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index de1ff1d98bb1..b1159b3e9816 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -2335,6 +2335,45 @@ static struct nfsd4_operation nfsd4_ops[] = { }, }; +/** + * nfsd4_spo_must_allow - Determine if the compound op contains an + * operation that is allowed to be sent with machine credentials + * + * @rqstp: a pointer to the struct svc_rqst + * + * Checks to see if the compound contains a spo_must_allow op + * and confirms that it was sent with the proper machine creds. + */ + +bool nfsd4_spo_must_allow(struct svc_rqst *rqstp) +{ + struct nfsd4_compoundres *resp = rqstp->rq_resp; + struct nfsd4_compoundargs *argp = rqstp->rq_argp; + struct nfsd4_op *this = &argp->ops[resp->opcnt - 1]; + struct nfsd4_compound_state *cstate = &resp->cstate; + struct nfs4_op_map *allow = &cstate->clp->cl_spo_must_allow; + u32 opiter; + + if (!cstate->minorversion) + return false; + + if (cstate->spo_must_allowed == true) + return true; + + opiter = resp->opcnt; + while (opiter < argp->opcnt) { + this = &argp->ops[opiter++]; + if (test_bit(this->opnum, allow->u.longs) && + cstate->clp->cl_mach_cred && + nfsd4_mach_creds_match(cstate->clp, rqstp)) { + cstate->spo_must_allowed = true; + return true; + } + } + cstate->spo_must_allowed = false; + return false; +} + int nfsd4_max_reply(struct svc_rqst *rqstp, struct nfsd4_op *op) { struct nfsd4_operation *opdesc; |