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-rw-r--r--hicn-light/src/core/messageHandler.h578
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diff --git a/hicn-light/src/core/messageHandler.h b/hicn-light/src/core/messageHandler.h
deleted file mode 100644
index f469ac5b0..000000000
--- a/hicn-light/src/core/messageHandler.h
+++ /dev/null
@@ -1,578 +0,0 @@
-/*
- * Copyright (c) 2017-2019 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef messageHandler
-#define messageHandler
-
-#include <stdlib.h>
-
-#include <hicn/hicn.h>
-#include <src/core/messagePacketType.h>
-
-#define H(packet) ((hicn_header_t *)packet)
-#define H6(packet) (H(packet)->v6.ip)
-#define H6T(packet) (H(packet)->v6.tcp)
-#define H4(packet) (H(packet)->v4.ip)
-#define H4T(packet) (H(packet)->v4.tcp)
-
-#define HICN_V6_LEN(packet) (H6(packet).len)
-#define HICN_V4_LEN(packet) (H4(packet).len)
-
-/*** codes and types ***/
-#define IPv6_TYPE 6
-#define IPv4_TYPE 4
-#define ICMP_WLDR_TYPE 42
-#define ICMP_WLDR_CODE 0
-#define ICMP_LB_TYPE 43
-
-/*** masks and constants ***/
-#define PATH_LABEL_MASK 0x8000 // 1000 0000 0000 0000
-#define NOT_PATH_LABEL_MASK 0x7fff // 0111 0000 0000 0000
-#define UINT16_T_MASK 0x0000ffff // 1111 1111 1111 1111
-
-/*** HICN ALLOWED PORTS ***/
-#define CONTROL_PORT 9695
-#define HTTP_PORT 8080
-
-#define IPV6_DEFAULT_VERSION 6
-#define IPV6_DEFAULT_TRAFFIC_CLASS 0
-#define IPV6_DEFAULT_FLOW_LABEL 0
-
-#define expected_lbl wldr_notification_lbl.expected_lbl
-#define received_lbl wldr_notification_lbl.received_lbl
-
-static inline uint8_t messageHandler_GetIPPacketType(const uint8_t *message) {
- return HICN_IP_VERSION(message);
-}
-
-static inline void messageHandler_UpdateTCPCheckSum(uint8_t *message,
- uint16_t *old_val,
- uint16_t *new_val,
- uint8_t size) {
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv4_TYPE:
- for (uint8_t i = 0; i < size; i++) {
- uint16_t old_csum = ~(H4T(message).csum);
- uint16_t not_old_val = ~(*old_val);
- uint32_t sum = (uint32_t)old_csum + not_old_val + *new_val;
-
- while (sum >> 16) {
- sum = (sum >> 16) + (sum & UINT16_T_MASK);
- }
-
- H4T(message).csum = ~sum;
- ++old_val;
- ++new_val;
- }
- break;
- case IPv6_TYPE:
- for (uint8_t i = 0; i < size; i++) {
- uint16_t old_csum = ~(H6T(message).csum);
- uint16_t not_old_val = ~(*old_val);
- uint32_t sum = (uint32_t)old_csum + not_old_val + *new_val;
-
- while (sum >> 16) {
- sum = (sum >> 16) + (sum & UINT16_T_MASK);
- }
-
- H6T(message).csum = ~sum;
- ++old_val;
- ++new_val;
- }
- break;
- default:
- return;
- }
-}
-
-static inline void messageHandler_UpdateIPv4CheckSum(uint8_t *message,
- uint16_t *old_val,
- uint16_t *new_val,
- uint8_t size) {
- for (uint8_t i = 0; i < size; i++) {
- uint16_t old_csum = ~(H4(message).csum);
- uint16_t not_old_val = ~(*old_val);
- uint32_t sum = (uint32_t)old_csum + not_old_val + *new_val;
-
- while (sum >> 16) {
- sum = (sum >> 16) + (sum & UINT16_T_MASK);
- }
-
- H4(message).csum = ~sum;
- ++old_val;
- ++new_val;
- }
-}
-
-static inline size_t messageHandler_GetEmptyTCPPacketSize(unsigned ipVersion) {
- if (ipVersion == IPv4_TYPE)
- return IPV4_HDRLEN + TCP_HDRLEN;
- else if (ipVersion == IPv6_TYPE)
- return IPV6_HDRLEN + TCP_HDRLEN;
- else
- return 0;
-}
-
-static inline size_t messageHandler_GetICMPPacketSize(unsigned ipVersion) {
- if (ipVersion == IPv4_TYPE)
- return IPV4_HDRLEN + ICMP_HDRLEN;
- else if (ipVersion == IPv6_TYPE)
- return IPV6_HDRLEN + ICMP_HDRLEN;
- else
- return 0;
-}
-
-static inline size_t messageHandler_GetIPHeaderLength(unsigned ipVersion) {
- if (ipVersion == IPv4_TYPE)
- return IPV4_HDRLEN;
- else if (ipVersion == IPv6_TYPE)
- return IPV6_HDRLEN;
- else
- return 0;
-}
-
-static inline bool messageHandler_IsValidHicnPacket(const uint8_t *message) {
- uint8_t version = messageHandler_GetIPPacketType(message);
- if (version == IPv6_TYPE || version == IPv4_TYPE) {
- return true;
- }
- return false;
-}
-
-static inline uint8_t messageHandler_NextHeaderType(const uint8_t *message) {
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- return (uint8_t)H6(message).nxt;
- case IPv4_TYPE:
- return (uint8_t)H4(message).protocol;
- default:
- return 0;
- }
-}
-
-static inline bool messageHandler_IsTCP(const uint8_t *message) {
- if (messageHandler_NextHeaderType(message) != IPPROTO_TCP) return false;
- return true;
-}
-
-static inline bool messageHandler_IsInterest(const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return false;
-
- bool flag;
- hicn_packet_test_ece((hicn_header_t *)message,
- &flag); // ECE flag is set to 0 in interest packets
- if (flag == false) return true;
- return false;
-}
-
-static inline bool messageHandler_IsData(const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return false;
-
- bool flag;
- hicn_packet_test_ece((hicn_header_t *)message,
- &flag); // ECE flag is set to 1 in data packets
- if (flag == true) return true;
- return false;
-}
-
-static inline bool messageHandler_IsWldrNotification(const uint8_t *message) {
- // this function returns true only if the packet is an ICMP packet in Wldr
- // form. type must be equal to ICMP_WLDR_TYPE and code equal to ICMP_WLDR_CODE
- uint8_t next_header = messageHandler_NextHeaderType(message);
-
- const uint8_t *icmp_ptr;
- if (next_header == IPPROTO_ICMP) {
- icmp_ptr = message + IPV4_HDRLEN;
- } else if (next_header == IPPROTO_ICMPV6) {
- icmp_ptr = message + IPV6_HDRLEN;
- } else {
- return false;
- }
-
- uint8_t type = ((_icmp_header_t *)icmp_ptr)->type;
- uint8_t code = ((_icmp_header_t *)icmp_ptr)->code;
- if (type == ICMP_WLDR_TYPE && code == ICMP_WLDR_CODE) {
- return true;
- }
-
- return false;
-}
-
-static inline bool messageHandler_IsLoadBalancerProbe(const uint8_t *message) {
- uint8_t next_header = messageHandler_NextHeaderType(message);
-
- const uint8_t *icmp_ptr;
- if (next_header == IPPROTO_ICMP) {
- icmp_ptr = message + IPV4_HDRLEN;
- } else if (next_header == IPPROTO_ICMPV6) {
- icmp_ptr = message + IPV6_HDRLEN;
- } else {
- return false;
- }
-
- uint8_t type = ((_icmp_header_t *)icmp_ptr)->type;
- if (type == ICMP_LB_TYPE) {
- return true;
- }
-
- return false;
-}
-
-static inline uint16_t messageHandler_GetTotalPacketLength(
- const uint8_t *message) {
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- return ntohs((uint16_t)HICN_V6_LEN(message)) + IPV6_HDRLEN;
- case IPv4_TYPE:
- return ntohs((uint16_t)HICN_V4_LEN(message));
- default:
- return 0;
- }
-}
-
-static inline uint32_t messageHandler_GetSegment(const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return 0;
-
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- return ntohl((uint32_t)H6T(message).seq);
- case IPv4_TYPE:
- return ntohl((uint32_t)H4T(message).seq);
- default:
- return 0;
- }
-}
-
-static inline uint16_t messageHandler_GetExpectedWldrLabel(
- const uint8_t *message) {
- const uint8_t *icmp_ptr;
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- icmp_ptr = message + IPV6_HDRLEN;
- break;
- case IPv4_TYPE:
- icmp_ptr = message + IPV4_HDRLEN;
- break;
- default:
- return 0;
- }
-
- return ntohs(((_icmp_wldr_header_t *)icmp_ptr)->expected_lbl);
-}
-
-static inline uint16_t messageHandler_GetWldrLastReceived(
- const uint8_t *message) {
- const uint8_t *icmp_ptr;
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- icmp_ptr = message + IPV6_HDRLEN;
- break;
- case IPv4_TYPE:
- icmp_ptr = message + IPV4_HDRLEN;
- break;
- default:
- return 0;
- }
-
- return ntohs(((_icmp_wldr_header_t *)icmp_ptr)->received_lbl);
-}
-
-static inline uint16_t messageHandler_GetWldrLabel(const uint8_t *message) {
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- return ntohs((uint16_t)H6T(message).window);
- case IPv4_TYPE:
- return ntohs((uint16_t)H4T(message).window);
- default:
- return 0;
- }
-}
-
-static inline void messageHandler_SetWldrLabel(uint8_t *message,
- uint16_t label) {
- uint16_t old_val = messageHandler_GetWldrLabel(message);
-
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- H6T(message).window = htons(label);
- break;
- case IPv4_TYPE:
- H4T(message).window = htons(label);
- break;
- default:
- break;
- }
-
- messageHandler_UpdateTCPCheckSum(message, &old_val, &label, 1);
-}
-
-static inline void messageHandler_ResetWldrLabel(uint8_t *message) {
- messageHandler_SetWldrLabel(message, 0);
-}
-
-static inline bool messageHandler_HasWldr(const uint8_t *message) {
- if (messageHandler_IsTCP(message)) {
- uint16_t lbl = messageHandler_GetWldrLabel(message);
- if (lbl != 0) {
- return true;
- }
- }
- return false;
-}
-
-static inline uint8_t messageHandler_GetProbePacketType(
- const uint8_t *message) {
- const uint8_t *icmp_ptr;
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- icmp_ptr = message + IPV6_HDRLEN;
- break;
- case IPv4_TYPE:
- icmp_ptr = message + IPV4_HDRLEN;
- break;
- default:
- return 0;
- }
-
- return ((_icmp_header_t *)icmp_ptr)->code;
-}
-
-static inline uint32_t messageHandler_GetPathLabel(const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return 0;
-
- uint32_t path_label;
- int res = hicn_data_get_path_label((hicn_header_t *)message, &path_label);
- if (res < 0) return 0;
- return path_label;
-}
-
-static inline void messageHandler_SetPathLabel(uint8_t *message,
- uint32_t new_path_label) {
- if (!messageHandler_IsTCP(message)) return;
-
- uint32_t old_path_label;
- int res = hicn_data_get_path_label((hicn_header_t *)message, &old_path_label);
- if (res < 0) return;
-
- hicn_data_set_path_label((hicn_header_t *)message, new_path_label);
-
- messageHandler_UpdateTCPCheckSum(message, (uint16_t *)&old_path_label,
- (uint16_t *)&new_path_label, 2);
-}
-
-static inline void messageHandler_UpdatePathLabel(uint8_t *message,
- uint8_t outFace) {
- if (!messageHandler_IsTCP(message)) return;
-
- uint32_t pl_old_32bit = messageHandler_GetPathLabel(message);
- uint8_t pl_old_8bit = (uint8_t)(pl_old_32bit >> 24UL);
- uint32_t pl_new_32bit =
- (uint32_t)((((pl_old_8bit << 1) | (pl_old_8bit >> 7)) ^ outFace) << 24UL);
-
- hicn_data_set_path_label((hicn_header_t *)message, pl_new_32bit);
-
- messageHandler_UpdateTCPCheckSum(message, (uint16_t *)&pl_old_32bit,
- (uint16_t *)&pl_new_32bit, 2);
-}
-
-static inline void messageHandler_ResetPathLabel(uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return;
-
- uint32_t pl_old_32bit = messageHandler_GetPathLabel(message);
- uint32_t pl_new_32bit = 0;
- hicn_data_set_path_label((hicn_header_t *)message, pl_new_32bit);
- messageHandler_UpdateTCPCheckSum(message, (uint16_t *)&pl_old_32bit,
- (uint16_t *)&pl_new_32bit, 2);
-}
-
-static inline uint16_t messageHandler_GetInterestLifetime(
- const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return 0;
-
- hicn_lifetime_t lifetime;
- int res = hicn_interest_get_lifetime((hicn_header_t *)message, &lifetime);
- if (res < 0) return 0;
- return lifetime;
-}
-
-static inline bool messageHandler_HasInterestLifetime(const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return false;
-
- if (messageHandler_GetInterestLifetime(message) == 0) return false;
- return true;
-}
-
-static inline uint32_t messageHandler_GetContentExpiryTime(
- const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return 0;
-
- uint32_t expirationTime;
- int res =
- hicn_data_get_expiry_time((hicn_header_t *)message, &expirationTime);
- if (res < 0) return 0;
- return expirationTime;
-}
-
-static inline bool messageHandler_HasContentExpiryTime(const uint8_t *message) {
- if (!messageHandler_IsTCP(message)) return 0;
-
- uint32_t expirationTime;
- int res =
- hicn_data_get_expiry_time((hicn_header_t *)message, &expirationTime);
- if (res < 0) return false;
-
- if (expirationTime == HICN_MAX_LIFETIME) return false;
-
- return true;
-}
-
-static inline void *messageHandler_GetSource(const uint8_t *message) {
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- return &H6(message).saddr;
- break;
- case IPv4_TYPE:
- return &H4(message).saddr;
- break;
- default:
- return NULL;
- }
-}
-
-static inline void *messageHandler_GetDestination(const uint8_t *message) {
- switch (messageHandler_GetIPPacketType(message)) {
- case IPv6_TYPE:
- return &H6(message).daddr;
- break;
- case IPv4_TYPE:
- return &H4(message).daddr;
- break;
- default:
- return NULL;
- }
-}
-
-static inline void messageHandler_SetSource_IPv6(uint8_t *message,
- struct in6_addr *address) {
- if (messageHandler_IsTCP(message)) {
- uint16_t *old_src = (uint16_t *)messageHandler_GetSource(message);
- messageHandler_UpdateTCPCheckSum(message, old_src, (uint16_t *)address, 8);
- }
- H6(message).saddr.as_in6addr = *address;
-}
-
-static inline void messageHandler_SetDestination_IPv6(
- uint8_t *message, struct in6_addr *address) {
- if (messageHandler_IsTCP(message)) {
- uint16_t *old_dst = (uint16_t *)messageHandler_GetDestination(message);
- messageHandler_UpdateTCPCheckSum(message, old_dst, (uint16_t *)address, 8);
- }
- H6(message).daddr.as_in6addr = *address;
-}
-
-static inline void messageHandler_SetSource_IPv4(uint8_t *message,
- uint32_t *address) {
- // update tcp checksum
- uint16_t *old_src = (uint16_t *)messageHandler_GetSource(message);
- if (messageHandler_IsTCP(message)) {
- messageHandler_UpdateTCPCheckSum(message, old_src, (uint16_t *)address, 2);
- }
- // update IPv4 cheksum
- // the IPv4 checksum is not part of the psudo header for TCP checksum
- // calculation we can update them separetelly
- messageHandler_UpdateIPv4CheckSum(message, old_src, (uint16_t *)address, 2);
-
- H4(message).saddr.as_u32 = *address;
-}
-
-static inline void messageHandler_SetDestination_IPv4(uint8_t *message,
- uint32_t *address) {
- uint16_t *old_dst = (uint16_t *)messageHandler_GetDestination(message);
- if (messageHandler_IsTCP(message)) {
- messageHandler_UpdateTCPCheckSum(message, old_dst, (uint16_t *)address, 2);
- }
- messageHandler_UpdateIPv4CheckSum(message, old_dst, (uint16_t *)address, 2);
- H4(message).daddr.as_u32 = *address;
-}
-
-static inline void messageHandler_SetWldrNotification(uint8_t *notification,
- uint8_t *original,
- uint16_t expected,
- uint16_t received) {
- hicn_header_t *h = (hicn_header_t *)notification;
- switch (messageHandler_GetIPPacketType(original)) {
- case IPv6_TYPE: {
- *h = (hicn_header_t){.v6 = {
- .ip =
- {
- .version_class_flow = htonl(
- (IPV6_DEFAULT_VERSION << 28) |
- (IPV6_DEFAULT_TRAFFIC_CLASS << 20) |
- (IPV6_DEFAULT_FLOW_LABEL & 0xfffff)),
- .len = htons(ICMP_HDRLEN),
- .nxt = IPPROTO_ICMPV6,
- .hlim = 5,
- },
- .wldr =
- {
- .type = ICMP_WLDR_TYPE,
- .code = ICMP_WLDR_CODE,
- .expected_lbl = htons(expected),
- .received_lbl = htons(received),
- },
- }};
- messageHandler_SetSource_IPv6(
- notification,
- (struct in6_addr *)messageHandler_GetDestination(original));
- messageHandler_SetDestination_IPv6(
- notification, (struct in6_addr *)messageHandler_GetSource(original));
- break;
- }
- case IPv4_TYPE: {
- break;
- }
- default:
- break;
- }
-}
-
-static inline void messageHandler_SetProbePacket(uint8_t *message,
- uint8_t probeType,
- struct in6_addr *src,
- struct in6_addr *dst) {
- hicn_header_t *h = (hicn_header_t *)message;
- *h = (hicn_header_t){
- .v6 = {
- .ip =
- {
- .version_class_flow =
- htonl((IPV6_DEFAULT_VERSION << 28) |
- (IPV6_DEFAULT_TRAFFIC_CLASS << 20) |
- (IPV6_DEFAULT_FLOW_LABEL & 0xfffff)),
- .len = htons(ICMP_HDRLEN),
- .nxt = IPPROTO_ICMPV6,
- .hlim = 5, // this should be 1, but ... just to be safe
- },
- .icmp =
- {
- .type = ICMP_LB_TYPE,
- .code = probeType,
- },
- }};
- messageHandler_SetSource_IPv6(message, src);
- messageHandler_SetDestination_IPv6(message, dst);
-}
-
-#endif // Metis_metis_MessageHandler