if (md5cksum.data) kfree(md5cksum.data); if (wire_cksum.data) kfree(wire_cksum.data); 
kfree(md5cksum.data); kfree(wire_cksum.data); 
spkm3_read_token(struct spkm3_ctx *ctx,		struct xdr_netobj *read_token,    /* checksum */		struct xdr_buf *message_buffer, /* signbuf */		int toktype){	s32			code;	struct xdr_netobj	wire_cksum = {.len =0, .data = NULL};	struct xdr_netobj	md5cksum = {.len = 0, .data = NULL};	unsigned char		*ptr = (unsigned char *)read_token->data;	unsigned char           *cksum;	int			bodysize, md5elen;	int			mic_hdrlen;	u32			ret = GSS_S_DEFECTIVE_TOKEN;	dprintk("RPC: spkm3_read_token read_token->len %d\n", read_token->len);	if (g_verify_token_header((struct xdr_netobj *) &ctx->mech_used,					&bodysize, &ptr, read_token->len))		goto out;	/* decode the token */	if (toktype == SPKM_MIC_TOK) {		if ((ret = spkm3_verify_mic_token(&ptr, &mic_hdrlen, &cksum))) 			goto out;		if (*cksum++ != 0x03) {			dprintk("RPC: spkm3_read_token BAD checksum type\n");			goto out;		}		md5elen = *cksum++; 		cksum++; 	/* move past the zbit */			if(!decode_asn1_bitstring(&wire_cksum, cksum, md5elen - 1, 16))			goto out;		/* HARD CODED FOR MD5 */		/* compute the checksum of the message.		*  ptr + 2 = start of header piece of checksum		*  mic_hdrlen + 2 = length of header piece of checksum		*/		ret = GSS_S_DEFECTIVE_TOKEN;		code = make_checksum(CKSUMTYPE_RSA_MD5, ptr + 2, 					mic_hdrlen + 2, 		                        message_buffer, &md5cksum);		if (code)			goto out;		dprintk("RPC: spkm3_read_token: digest wire_cksum.len %d:\n", 			wire_cksum.len);		dprintk("          md5cksum.data\n");		print_hexl((u32 *) md5cksum.data, 16, 0);		dprintk("          cksum.data:\n");		print_hexl((u32 *) wire_cksum.data, wire_cksum.len, 0);		ret = GSS_S_BAD_SIG;		code = memcmp(md5cksum.data, wire_cksum.data, wire_cksum.len);		if (code)			goto out;	} else { 		dprintk("RPC: BAD or UNSUPPORTED SPKM3 token type: %d\n",toktype);		goto out;	}	/* XXX: need to add expiration and sequencing */	ret = GSS_S_COMPLETE;out:	if (md5cksum.data) 		kfree(md5cksum.data);	if (wire_cksum.data) 		kfree(wire_cksum.data);	return ret;}
4520	/local/tlutelli/issta_data/temp/c/2005_temp/2005/4520/a51482bde22f99c63fbbb57d5d46cc666384e379/gss_spkm3_unseal.c/clean/net/sunrpc/auth_gss/gss_spkm3_unseal.c