diff options
Diffstat (limited to 'src/lib/rpc/auth_gssapi.c')
| -rw-r--r-- | src/lib/rpc/auth_gssapi.c | 180 |
1 files changed, 90 insertions, 90 deletions
diff --git a/src/lib/rpc/auth_gssapi.c b/src/lib/rpc/auth_gssapi.c index 69a4fd1a4..e7a1f8b00 100644 --- a/src/lib/rpc/auth_gssapi.c +++ b/src/lib/rpc/auth_gssapi.c @@ -34,7 +34,7 @@ extern void gssrpcint_printf(const char *format, ...); #define L_PRINTF(l, args) #define AUTH_GSSAPI_DISPLAY_STATUS(args) #endif - + static void auth_gssapi_nextverf(AUTH *); static bool_t auth_gssapi_marshall(AUTH *, XDR *); static bool_t auth_gssapi_validate(AUTH *, struct opaque_auth *); @@ -42,7 +42,7 @@ static bool_t auth_gssapi_refresh(AUTH *, struct rpc_msg *); static bool_t auth_gssapi_wrap(AUTH *, XDR *, xdrproc_t, caddr_t); static bool_t auth_gssapi_unwrap(AUTH *, XDR *, xdrproc_t, caddr_t); static void auth_gssapi_destroy(AUTH *); - + static bool_t marshall_new_creds(AUTH *, bool_t, gss_buffer_t); static struct auth_ops auth_gssapi_ops = { @@ -65,7 +65,7 @@ struct auth_gssapi_data { gss_buffer_desc client_handle; uint32_t seq_num; int def_cred; - + /* pre-serialized ah_cred */ unsigned char cred_buf[MAX_AUTH_BYTES]; uint32_t cred_len; @@ -86,11 +86,11 @@ AUTH *auth_gssapi_create_default(CLIENT *clnt, char *service_name) OM_uint32 gssstat, minor_stat; gss_buffer_desc input_name; gss_name_t target_name; - + input_name.value = service_name; input_name.length = strlen(service_name) + 1; - - gssstat = gss_import_name(&minor_stat, &input_name, + + gssstat = gss_import_name(&minor_stat, &input_name, gss_nt_service_name, &target_name); if (gssstat != GSS_S_COMPLETE) { AUTH_GSSAPI_DISPLAY_STATUS(("parsing name", gssstat, @@ -99,7 +99,7 @@ AUTH *auth_gssapi_create_default(CLIENT *clnt, char *service_name) rpc_createerr.cf_error.re_errno = ENOMEM; return NULL; } - + auth = auth_gssapi_create(clnt, &gssstat, &minor_stat, @@ -111,7 +111,7 @@ AUTH *auth_gssapi_create_default(CLIENT *clnt, char *service_name) NULL, NULL, NULL); - + gss_release_name(&minor_stat, &target_name); return auth; } @@ -145,22 +145,22 @@ AUTH *auth_gssapi_create( struct timeval timeout; int bindings_failed; rpcproc_t init_func; - + auth_gssapi_init_arg call_arg; auth_gssapi_init_res call_res; gss_buffer_desc *input_token, isn_buf; - + memset(&rpc_createerr, 0, sizeof(rpc_createerr)); - + /* this timeout is only used if clnt_control(clnt, CLSET_TIMEOUT) */ /* has not already been called.. therefore, we can just pick */ /* something reasonable-sounding.. */ timeout.tv_sec = 30; timeout.tv_usec = 0; - + auth = NULL; pdata = NULL; - + /* don't assume the caller will want to change clnt->cl_auth */ save_auth = clnt->cl_auth; @@ -178,23 +178,23 @@ AUTH *auth_gssapi_create( } memset(auth, 0, sizeof(*auth)); memset(pdata, 0, sizeof(*pdata)); - + auth->ah_ops = &auth_gssapi_ops; auth->ah_private = (caddr_t) pdata; - + /* initial creds are auth_msg TRUE and no handle */ marshall_new_creds(auth, TRUE, NULL); - + /* initial verifier is empty */ auth->ah_verf.oa_flavor = AUTH_GSSAPI; auth->ah_verf.oa_base = NULL; auth->ah_verf.oa_length = 0; - + AUTH_PRIVATE(auth)->established = FALSE; AUTH_PRIVATE(auth)->clnt = clnt; AUTH_PRIVATE(auth)->def_cred = (claimant_cred_handle == GSS_C_NO_CREDENTIAL); - + clnt->cl_auth = auth; /* start by trying latest version */ @@ -237,7 +237,7 @@ try_new_version: bindings.initiator_addrtype = GSS_C_AF_INET; bindings.initiator_address.length = 4; bindings.initiator_address.value = &laddr.sin_addr.s_addr; - + bindings.acceptor_addrtype = GSS_C_AF_INET; bindings.acceptor_address.length = 4; bindings.acceptor_address.value = &raddr.sin_addr.s_addr; @@ -245,9 +245,9 @@ try_new_version: } else { bindp = NULL; } - + memset(&call_res, 0, sizeof(call_res)); - + next_token: *gssstat = gss_init_sec_context(minor_stat, claimant_cred_handle, @@ -262,16 +262,16 @@ next_token: &call_arg.token, ret_flags, time_rec); - + if (*gssstat != GSS_S_COMPLETE && *gssstat != GSS_S_CONTINUE_NEEDED) { AUTH_GSSAPI_DISPLAY_STATUS(("initializing context", *gssstat, *minor_stat)); goto cleanup; } - + /* if we got a token, pass it on */ if (call_arg.token.length != 0) { - + /* * sanity check: if we received a signed isn in the last * response then there *cannot* be another token to send @@ -280,16 +280,16 @@ next_token: PRINTF(("gssapi_create: unexpected token from init_sec\n")); goto cleanup; } - + PRINTF(("gssapi_create: calling GSSAPI_INIT (%d)\n", init_func)); - + memset(&call_res, 0, sizeof(call_res)); callstat = clnt_call(clnt, init_func, xdr_authgssapi_init_arg, &call_arg, xdr_authgssapi_init_res, &call_res, timeout); gss_release_buffer(minor_stat, &call_arg.token); - + if (callstat != RPC_SUCCESS) { struct rpc_err err; @@ -306,7 +306,7 @@ next_token: PRINTF(("gssapi_create: GSSAPI_INIT (%d) failed, stat %d\n", init_func, callstat)); } - + goto cleanup; } else if (call_res.version != call_arg.version && !(call_arg.version == 2 && call_res.version == 1)) { @@ -332,10 +332,10 @@ next_token: call_res.gss_minor)); goto cleanup; } - + PRINTF(("gssapi_create: GSSAPI_INIT (%d) succeeded\n", init_func)); init_func = AUTH_GSSAPI_CONTINUE_INIT; - + /* check for client_handle */ if (AUTH_PRIVATE(auth)->client_handle.length == 0) { if (call_res.client_handle.length == 0) { @@ -344,20 +344,20 @@ next_token: } else { PRINTF(("gssapi_create: got client_handle %d\n", *((uint32_t *)call_res.client_handle.value))); - + GSS_DUP_BUFFER(AUTH_PRIVATE(auth)->client_handle, call_res.client_handle); - + /* auth_msg is TRUE; there may be more tokens */ marshall_new_creds(auth, TRUE, - &AUTH_PRIVATE(auth)->client_handle); + &AUTH_PRIVATE(auth)->client_handle); } } else if (!GSS_BUFFERS_EQUAL(AUTH_PRIVATE(auth)->client_handle, call_res.client_handle)) { PRINTF(("gssapi_create: got different client_handle\n")); goto cleanup; } - + /* check for token */ if (call_res.token.length==0 && *gssstat==GSS_S_CONTINUE_NEEDED) { PRINTF(("gssapi_create: expected token\n")); @@ -373,7 +373,7 @@ next_token: } } } - + /* check for isn */ if (*gssstat == GSS_S_COMPLETE) { if (call_res.signed_isn.length == 0) { @@ -381,67 +381,67 @@ next_token: goto cleanup; } else { PRINTF(("gssapi_create: processing signed isn\n")); - + /* don't check conf (integ only) or qop (accpet default) */ *gssstat = gss_unseal(minor_stat, AUTH_PRIVATE(auth)->context, &call_res.signed_isn, &isn_buf, NULL, NULL); - + if (*gssstat != GSS_S_COMPLETE) { AUTH_GSSAPI_DISPLAY_STATUS(("unsealing isn", - *gssstat, *minor_stat)); + *gssstat, *minor_stat)); goto cleanup; } else if (isn_buf.length != sizeof(uint32_t)) { PRINTF(("gssapi_create: gss_unseal gave %d bytes\n", (int) isn_buf.length)); goto cleanup; } - + AUTH_PRIVATE(auth)->seq_num = (uint32_t) - ntohl(*((uint32_t*)isn_buf.value)); + ntohl(*((uint32_t*)isn_buf.value)); *gssstat = gss_release_buffer(minor_stat, &isn_buf); if (*gssstat != GSS_S_COMPLETE) { AUTH_GSSAPI_DISPLAY_STATUS(("releasing unsealed isn", *gssstat, *minor_stat)); goto cleanup; } - + PRINTF(("gssapi_create: isn is %d\n", AUTH_PRIVATE(auth)->seq_num)); - + /* we no longer need these results.. */ xdr_free(xdr_authgssapi_init_res, &call_res); } } else if (call_res.signed_isn.length != 0) { PRINTF(("gssapi_create: got signed isn, can't check yet\n")); } - + /* results were okay.. continue if necessary */ if (*gssstat == GSS_S_CONTINUE_NEEDED) { PRINTF(("gssapi_create: not done, continuing\n")); goto next_token; } - + /* * Done! Context is established, we have client_handle and isn. */ AUTH_PRIVATE(auth)->established = TRUE; - + marshall_new_creds(auth, FALSE, - &AUTH_PRIVATE(auth)->client_handle); - + &AUTH_PRIVATE(auth)->client_handle); + PRINTF(("gssapi_create: done. client_handle %#x, isn %d\n\n", *((uint32_t *)AUTH_PRIVATE(auth)->client_handle.value), AUTH_PRIVATE(auth)->seq_num)); - + /* don't assume the caller will want to change clnt->cl_auth */ clnt->cl_auth = save_auth; - + return auth; - + /******************************************************************/ - + cleanup: PRINTF(("gssapi_create: bailing\n\n")); @@ -452,13 +452,13 @@ cleanup: free(auth); auth = NULL; } - + /* don't assume the caller will want to change clnt->cl_auth */ clnt->cl_auth = save_auth; - + if (rpc_createerr.cf_stat == 0) rpc_createerr.cf_stat = RPC_AUTHERROR; - + return auth; } @@ -480,7 +480,7 @@ cleanup: * Requires: auth must point to a valid GSS-API auth structure, auth_msg * must be TRUE or FALSE, client_handle must be a gss_buffer_t with a valid * value and length field or NULL. - * + * * Effects: auth->ah_cred is set to the serialized auth_gssapi_creds * version 2 structure (stored in the cred_buf field of private data) * containing version, auth_msg and client_handle. @@ -496,11 +496,11 @@ static bool_t marshall_new_creds( { auth_gssapi_creds creds; XDR xdrs; - + PRINTF(("marshall_new_creds: starting\n")); creds.version = 2; - + creds.auth_msg = auth_msg; if (client_handle) GSS_COPY_BUFFER(creds.client_handle, *client_handle) @@ -508,7 +508,7 @@ static bool_t marshall_new_creds( creds.client_handle.length = 0; creds.client_handle.value = NULL; } - + xdrmem_create(&xdrs, (caddr_t) AUTH_PRIVATE(auth)->cred_buf, MAX_AUTH_BYTES, XDR_ENCODE); if (! xdr_authgssapi_creds(&xdrs, &creds)) { @@ -518,16 +518,16 @@ static bool_t marshall_new_creds( } AUTH_PRIVATE(auth)->cred_len = xdr_getpos(&xdrs); XDR_DESTROY(&xdrs); - + PRINTF(("marshall_new_creds: auth_gssapi_creds is %d bytes\n", AUTH_PRIVATE(auth)->cred_len)); - + auth->ah_cred.oa_flavor = AUTH_GSSAPI; auth->ah_cred.oa_base = (char *) AUTH_PRIVATE(auth)->cred_buf; auth->ah_cred.oa_length = AUTH_PRIVATE(auth)->cred_len; - + PRINTF(("marshall_new_creds: succeeding\n")); - + return TRUE; } @@ -556,13 +556,13 @@ static void auth_gssapi_nextverf(AUTH *auth) * Returns: boolean indicating success/failure * * Effects: - * + * * The pre-serialized credentials in cred_buf are serialized. If the * context is established, the sealed sequence number is serialized as * the verifier. If the context is not established, an empty verifier * is serialized. The sequence number is *not* incremented, because * this function is called multiple times if retransmission is required. - * + * * If this took all the header fields as arguments, it could sign * them. */ @@ -573,22 +573,22 @@ static bool_t auth_gssapi_marshall( OM_uint32 minor_stat; gss_buffer_desc out_buf; uint32_t seq_num; - + if (AUTH_PRIVATE(auth)->established == TRUE) { PRINTF(("gssapi_marshall: starting\n")); - + seq_num = AUTH_PRIVATE(auth)->seq_num + 1; - + PRINTF(("gssapi_marshall: sending seq_num %d\n", seq_num)); - + if (auth_gssapi_seal_seq(AUTH_PRIVATE(auth)->context, seq_num, &out_buf) == FALSE) { PRINTF(("gssapi_marhshall: seal failed\n")); } - + auth->ah_verf.oa_base = out_buf.value; auth->ah_verf.oa_length = out_buf.length; - + if (! xdr_opaque_auth(xdrs, &auth->ah_cred) || ! xdr_opaque_auth(xdrs, &auth->ah_verf)) { (void) gss_release_buffer(&minor_stat, &out_buf); @@ -597,16 +597,16 @@ static bool_t auth_gssapi_marshall( (void) gss_release_buffer(&minor_stat, &out_buf); } else { PRINTF(("gssapi_marshall: not established, sending null verf\n")); - + auth->ah_verf.oa_base = NULL; auth->ah_verf.oa_length = 0; - + if (! xdr_opaque_auth(xdrs, &auth->ah_cred) || ! xdr_opaque_auth(xdrs, &auth->ah_verf)) { return FALSE; } } - + return TRUE; } @@ -623,14 +623,14 @@ static bool_t auth_gssapi_validate( { gss_buffer_desc in_buf; uint32_t seq_num; - + if (AUTH_PRIVATE(auth)->established == FALSE) { PRINTF(("gssapi_validate: not established, noop\n")); return TRUE; } - + PRINTF(("gssapi_validate: starting\n")); - + in_buf.length = verf->oa_length; in_buf.value = verf->oa_base; if (auth_gssapi_unseal_seq(AUTH_PRIVATE(auth)->context, &in_buf, @@ -638,7 +638,7 @@ static bool_t auth_gssapi_validate( PRINTF(("gssapi_validate: failed unsealing verifier\n")); return FALSE; } - + /* we sent seq_num+1, so we should get back seq_num+2 */ if (AUTH_PRIVATE(auth)->seq_num+2 != seq_num) { PRINTF(("gssapi_validate: expecting seq_num %d, got %d (%#x)\n", @@ -646,12 +646,12 @@ static bool_t auth_gssapi_validate( return FALSE; } PRINTF(("gssapi_validate: seq_num %d okay\n", seq_num)); - + /* +1 for successful transmission, +1 for successful validation */ AUTH_PRIVATE(auth)->seq_num += 2; - + PRINTF(("gssapi_validate: succeeding\n")); - + return TRUE; } @@ -661,7 +661,7 @@ static bool_t auth_gssapi_validate( * Purpose: Attempts to resyncrhonize the sequence number. * * Effects: - * + * * When the server receives a properly authenticated RPC call, it * increments the sequence number it is expecting from the client. * But if the server's response is lost for any reason, the client @@ -706,18 +706,18 @@ static void auth_gssapi_destroy(AUTH *auth) OM_uint32 gssstat, minor_stat; gss_cred_id_t cred; int callstat; - + if (AUTH_PRIVATE(auth)->client_handle.length == 0) { PRINTF(("gssapi_destroy: no client_handle, not calling destroy\n")); goto skip_call; } - + PRINTF(("gssapi_destroy: marshalling new creds\n")); if (!marshall_new_creds(auth, TRUE, &AUTH_PRIVATE(auth)->client_handle)) { PRINTF(("gssapi_destroy: marshall_new_creds failed\n")); goto skip_call; } - + PRINTF(("gssapi_destroy: calling GSSAPI_DESTROY\n")); timeout.tv_sec = 1; timeout.tv_usec = 0; @@ -726,7 +726,7 @@ static void auth_gssapi_destroy(AUTH *auth) if (callstat != RPC_SUCCESS) clnt_sperror(AUTH_PRIVATE(auth)->clnt, "gssapi_destroy: GSSAPI_DESTROY failed"); - + skip_call: PRINTF(("gssapi_destroy: deleting context\n")); gssstat = gss_delete_sec_context(&minor_stat, @@ -742,18 +742,18 @@ skip_call: AUTH_GSSAPI_DISPLAY_STATUS(("deleting default credential", gssstat, minor_stat)); } - + if (AUTH_PRIVATE(auth)->client_handle.length != 0) gss_release_buffer(&minor_stat, &AUTH_PRIVATE(auth)->client_handle); - + #if 0 PRINTF(("gssapi_destroy: calling GSSAPI_EXIT\n")); AUTH_PRIVATE(auth)->established = FALSE; callstat = clnt_call(AUTH_PRIVATE(auth)->clnt, AUTH_GSSAPI_EXIT, xdr_void, NULL, xdr_void, NULL, timeout); #endif - + free(auth->ah_private); free(auth); PRINTF(("gssapi_destroy: done\n")); @@ -774,7 +774,7 @@ static bool_t auth_gssapi_wrap( caddr_t xdr_ptr) { OM_uint32 gssstat, minor_stat; - + if (! AUTH_PRIVATE(auth)->established) { PRINTF(("gssapi_wrap: context not established, noop\n")); return (*xdr_func)(out_xdrs, xdr_ptr); @@ -805,7 +805,7 @@ static bool_t auth_gssapi_unwrap( caddr_t xdr_ptr) { OM_uint32 gssstat, minor_stat; - + if (! AUTH_PRIVATE(auth)->established) { PRINTF(("gssapi_unwrap: context not established, noop\n")); return (*xdr_func)(in_xdrs, xdr_ptr); |