40 int __cifs_calc_signature(struct smb_rqst *rqst,  in __cifs_calc_signature()  argument
46 	struct kvec *iov = rqst->rq_iov;  in __cifs_calc_signature()
47 	int n_vec = rqst->rq_nvec;  in __cifs_calc_signature()
79 	for (i = 0; i < rqst->rq_npages; i++) {  in __cifs_calc_signature()
83 		rqst_page_get_length(rqst, i, &len, &offset);  in __cifs_calc_signature()
85 		kaddr = (char *) kmap(rqst->rq_pages[i]) + offset;  in __cifs_calc_signature()
91 			kunmap(rqst->rq_pages[i]);  in __cifs_calc_signature()
95 		kunmap(rqst->rq_pages[i]);  in __cifs_calc_signature()
112 static int cifs_calc_signature(struct smb_rqst *rqst,  in cifs_calc_signature()  argument
117 	if (!rqst->rq_iov || !signature || !server)  in cifs_calc_signature()
138 	return __cifs_calc_signature(rqst, server, signature,  in cifs_calc_signature()
143 int cifs_sign_rqst(struct smb_rqst *rqst, struct TCP_Server_Info *server,  in cifs_sign_rqst()  argument
148 	struct smb_hdr *cifs_pdu = (struct smb_hdr *)rqst->rq_iov[0].iov_base;  in cifs_sign_rqst()
150 	if (rqst->rq_iov[0].iov_len != 4 ||  in cifs_sign_rqst()
151 	    rqst->rq_iov[0].iov_base + 4 != rqst->rq_iov[1].iov_base)  in cifs_sign_rqst()
173 	rc = cifs_calc_signature(rqst, server, smb_signature);  in cifs_sign_rqst()
185 	struct smb_rqst rqst = { .rq_iov = iov,  in cifs_sign_smbv()  local
188 	return cifs_sign_rqst(&rqst, server, pexpected_response_sequence);  in cifs_sign_smbv()
206 int cifs_verify_signature(struct smb_rqst *rqst,  in cifs_verify_signature()  argument
213 	struct smb_hdr *cifs_pdu = (struct smb_hdr *)rqst->rq_iov[0].iov_base;  in cifs_verify_signature()
215 	if (rqst->rq_iov[0].iov_len != 4 ||  in cifs_verify_signature()
216 	    rqst->rq_iov[0].iov_base + 4 != rqst->rq_iov[1].iov_base)  in cifs_verify_signature()
249 	rc = cifs_calc_signature(rqst, server, what_we_think_sig_should_be);  in cifs_verify_signature()