From: Harshula Jayasuriya Date: Tue, 19 Feb 2008 23:56:56 +0000 (+1100) Subject: sunrpc: GSS integrity and decryption failures should return GARBAGE_ARGS X-Git-Tag: v2.6.26-rc1~1083^2~32 X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dd35210e1e2cb46d6dba5c97f1bc3784c4f97998;p=linux-2.6 sunrpc: GSS integrity and decryption failures should return GARBAGE_ARGS In function svcauth_gss_accept() (net/sunrpc/auth_gss/svcauth_gss.c) the code that handles GSS integrity and decryption failures should be returning GARBAGE_ARGS as specified in RFC 2203, sections 5.3.3.4.2 and 5.3.3.4.3. Reviewed-by: Greg Banks Signed-off-by: Harshula Jayasuriya Signed-off-by: J. Bruce Fields --- diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c index 481f984e9a..5905d56737 100644 --- a/net/sunrpc/auth_gss/svcauth_gss.c +++ b/net/sunrpc/auth_gss/svcauth_gss.c @@ -1146,7 +1146,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) case RPC_GSS_SVC_INTEGRITY: if (unwrap_integ_data(&rqstp->rq_arg, gc->gc_seq, rsci->mechctx)) - goto auth_err; + goto garbage_args; /* placeholders for length and seq. number: */ svc_putnl(resv, 0); svc_putnl(resv, 0); @@ -1154,7 +1154,7 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) case RPC_GSS_SVC_PRIVACY: if (unwrap_priv_data(rqstp, &rqstp->rq_arg, gc->gc_seq, rsci->mechctx)) - goto auth_err; + goto garbage_args; /* placeholders for length and seq. number: */ svc_putnl(resv, 0); svc_putnl(resv, 0); @@ -1169,6 +1169,11 @@ svcauth_gss_accept(struct svc_rqst *rqstp, __be32 *authp) ret = SVC_OK; goto out; } +garbage_args: + /* Restore write pointer to its original value: */ + xdr_ressize_check(rqstp, reject_stat); + ret = SVC_GARBAGE; + goto out; auth_err: /* Restore write pointer to its original value: */ xdr_ressize_check(rqstp, reject_stat); diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c index 090af78d68..7efb5133eb 100644 --- a/net/sunrpc/svc.c +++ b/net/sunrpc/svc.c @@ -921,8 +921,7 @@ svc_process(struct svc_rqst *rqstp) case SVC_OK: break; case SVC_GARBAGE: - rpc_stat = rpc_garbage_args; - goto err_bad; + goto err_garbage; case SVC_SYSERR: rpc_stat = rpc_system_err; goto err_bad;