765 static void build_preauth_ctxt(struct smb2_preauth_neg_context *pneg_ctxt,  in build_preauth_ctxt()  argument
768 	pneg_ctxt->ContextType = SMB2_PREAUTH_INTEGRITY_CAPABILITIES;  in build_preauth_ctxt()
769 	pneg_ctxt->DataLength = cpu_to_le16(38);  in build_preauth_ctxt()
770 	pneg_ctxt->HashAlgorithmCount = cpu_to_le16(1);  in build_preauth_ctxt()
771 	pneg_ctxt->Reserved = cpu_to_le32(0);  in build_preauth_ctxt()
772 	pneg_ctxt->SaltLength = cpu_to_le16(SMB311_SALT_SIZE);  in build_preauth_ctxt()
773 	get_random_bytes(pneg_ctxt->Salt, SMB311_SALT_SIZE);  in build_preauth_ctxt()
774 	pneg_ctxt->HashAlgorithms = hash_id;  in build_preauth_ctxt()
777 static void build_encrypt_ctxt(struct smb2_encryption_neg_context *pneg_ctxt,  in build_encrypt_ctxt()  argument
780 	pneg_ctxt->ContextType = SMB2_ENCRYPTION_CAPABILITIES;  in build_encrypt_ctxt()
781 	pneg_ctxt->DataLength = cpu_to_le16(4);  in build_encrypt_ctxt()
782 	pneg_ctxt->Reserved = cpu_to_le32(0);  in build_encrypt_ctxt()
783 	pneg_ctxt->CipherCount = cpu_to_le16(1);  in build_encrypt_ctxt()
784 	pneg_ctxt->Ciphers[0] = cipher_type;  in build_encrypt_ctxt()
787 static void build_sign_cap_ctxt(struct smb2_signing_capabilities *pneg_ctxt,  in build_sign_cap_ctxt()  argument
790 	pneg_ctxt->ContextType = SMB2_SIGNING_CAPABILITIES;  in build_sign_cap_ctxt()
791 	pneg_ctxt->DataLength =  in build_sign_cap_ctxt()
794 	pneg_ctxt->Reserved = cpu_to_le32(0);  in build_sign_cap_ctxt()
795 	pneg_ctxt->SigningAlgorithmCount = cpu_to_le16(1);  in build_sign_cap_ctxt()
796 	pneg_ctxt->SigningAlgorithms[0] = sign_algo;  in build_sign_cap_ctxt()
799 static void build_posix_ctxt(struct smb2_posix_neg_context *pneg_ctxt)  in build_posix_ctxt()  argument
801 	pneg_ctxt->ContextType = SMB2_POSIX_EXTENSIONS_AVAILABLE;  in build_posix_ctxt()
802 	pneg_ctxt->DataLength = cpu_to_le16(POSIX_CTXT_DATA_LEN);  in build_posix_ctxt()
804 	pneg_ctxt->Name[0] = 0x93;  in build_posix_ctxt()
805 	pneg_ctxt->Name[1] = 0xAD;  in build_posix_ctxt()
806 	pneg_ctxt->Name[2] = 0x25;  in build_posix_ctxt()
807 	pneg_ctxt->Name[3] = 0x50;  in build_posix_ctxt()
808 	pneg_ctxt->Name[4] = 0x9C;  in build_posix_ctxt()
809 	pneg_ctxt->Name[5] = 0xB4;  in build_posix_ctxt()
810 	pneg_ctxt->Name[6] = 0x11;  in build_posix_ctxt()
811 	pneg_ctxt->Name[7] = 0xE7;  in build_posix_ctxt()
812 	pneg_ctxt->Name[8] = 0xB4;  in build_posix_ctxt()
813 	pneg_ctxt->Name[9] = 0x23;  in build_posix_ctxt()
814 	pneg_ctxt->Name[10] = 0x83;  in build_posix_ctxt()
815 	pneg_ctxt->Name[11] = 0xDE;  in build_posix_ctxt()
816 	pneg_ctxt->Name[12] = 0x96;  in build_posix_ctxt()
817 	pneg_ctxt->Name[13] = 0x8B;  in build_posix_ctxt()
818 	pneg_ctxt->Name[14] = 0xCD;  in build_posix_ctxt()
819 	pneg_ctxt->Name[15] = 0x7C;  in build_posix_ctxt()
825 	char * const pneg_ctxt = (char *)rsp +  in assemble_neg_contexts()  local
832 	build_preauth_ctxt((struct smb2_preauth_neg_context *)pneg_ctxt,  in assemble_neg_contexts()
842 				   (pneg_ctxt + ctxt_size),  in assemble_neg_contexts()
856 				 (pneg_ctxt + ctxt_size));  in assemble_neg_contexts()
866 				    (pneg_ctxt + ctxt_size),  in assemble_neg_contexts()
877 				  struct smb2_preauth_neg_context *pneg_ctxt,  in decode_preauth_ctxt()  argument
888 	if (pneg_ctxt->HashAlgorithms != SMB2_PREAUTH_INTEGRITY_SHA512)  in decode_preauth_ctxt()
896 				struct smb2_encryption_neg_context *pneg_ctxt,  in decode_encrypt_ctxt()  argument
909 	cph_cnt = le16_to_cpu(pneg_ctxt->CipherCount);  in decode_encrypt_ctxt()
922 		if (pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_GCM ||  in decode_encrypt_ctxt()
923 		    pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES128_CCM ||  in decode_encrypt_ctxt()
924 		    pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_CCM ||  in decode_encrypt_ctxt()
925 		    pneg_ctxt->Ciphers[i] == SMB2_ENCRYPTION_AES256_GCM) {  in decode_encrypt_ctxt()
927 				    pneg_ctxt->Ciphers[i]);  in decode_encrypt_ctxt()
928 			conn->cipher_type = pneg_ctxt->Ciphers[i];  in decode_encrypt_ctxt()
954 				 struct smb2_compression_capabilities_context *pneg_ctxt)  in decode_compress_ctxt()  argument
960 				 struct smb2_signing_capabilities *pneg_ctxt,  in decode_sign_cap_ctxt()  argument
972 	sign_algo_cnt = le16_to_cpu(pneg_ctxt->SigningAlgorithmCount);  in decode_sign_cap_ctxt()
982 		if (pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_HMAC_SHA256_LE ||  in decode_sign_cap_ctxt()
983 		    pneg_ctxt->SigningAlgorithms[i] == SIGNING_ALG_AES_CMAC_LE) {  in decode_sign_cap_ctxt()
985 				    pneg_ctxt->SigningAlgorithms[i]);  in decode_sign_cap_ctxt()
988 				pneg_ctxt->SigningAlgorithms[i];  in decode_sign_cap_ctxt()