support IPv4 & IPv6 frag reassemble
This commit is contained in:
luwenpeng
@@ -2,6 +2,7 @@ add_subdirectory(log)
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add_subdirectory(timestamp)
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add_subdirectory(tuple)
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add_subdirectory(packet)
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add_subdirectory(ip_reassemble)
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add_subdirectory(id_generator)
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add_subdirectory(dupkt_filter)
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add_subdirectory(eviction_filter)
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@@ -3,7 +3,7 @@
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#include "timestamp.h"
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#include "dablooms.h"
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#include "tcp_utils.h"
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#include "ipv4_helpers.h"
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#include "ipv4_utils.h"
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#include "dupkt_filter.h"
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struct dupkt_filter_key
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@@ -5,7 +5,7 @@
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#include "timestamp.h"
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#include "dablooms.h"
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#include "udp_utils.h"
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#include "ipv4_helpers.h"
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#include "ipv4_utils.h"
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#include "ipv6_utils.h"
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#include "eviction_filter.h"
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@@ -5,9 +5,9 @@
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* Packets in the pkts_out array should be freed by calling the packet_free() function
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*/
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uint16_t ipv4_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size)
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uint16_t ipv4_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t n_pkts_out, uint16_t mtu_size)
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{
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if (pkt_in == NULL || pkts_out == NULL || nb_pkts_out == 0)
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if (pkt_in == NULL || pkts_out == NULL || n_pkts_out == 0)
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{
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IP_FRAGMENT_LOG_ERROR("invalid input parameters");
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return 0;
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@@ -18,9 +18,9 @@ uint16_t ipv4_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, u
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return 0;
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}
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uint16_t ipv6_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size)
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uint16_t ipv6_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t n_pkts_out, uint16_t mtu_size)
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{
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if (pkt_in == NULL || pkts_out == NULL || nb_pkts_out == 0)
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if (pkt_in == NULL || pkts_out == NULL || n_pkts_out == 0)
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{
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IP_FRAGMENT_LOG_ERROR("invalid input parameters");
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return 0;
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@@ -16,8 +16,8 @@ extern "C"
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* Return the number of fragmented packets, stored in the pkts_out array
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* Packets in the pkts_out array should be freed by calling the packet_free() function
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*/
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uint16_t ipv4_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size);
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uint16_t ipv6_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t nb_pkts_out, uint16_t mtu_size);
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uint16_t ipv4_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t n_pkts_out, uint16_t mtu_size);
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uint16_t ipv6_fragment_packet(struct packet *pkt_in, struct packet **pkts_out, uint16_t n_pkts_out, uint16_t mtu_size);
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#ifdef __cpluscplus
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}
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9
src/ip_reassemble/CMakeLists.txt
Normal file
9
src/ip_reassemble/CMakeLists.txt
Normal file
@@ -0,0 +1,9 @@
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###############################################################################
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# ip_reassemble
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###############################################################################
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add_library(ip_reassemble ip_reassemble.cpp)
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target_include_directories(ip_reassemble PUBLIC ${CMAKE_CURRENT_LIST_DIR})
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target_link_libraries(ip_reassemble timestamp packet)
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add_subdirectory(test)
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@@ -1,13 +1,784 @@
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#include <stdlib.h>
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#include <string.h>
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#include <sys/queue.h>
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#include <assert.h>
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#include "packet.h"
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#include "timestamp.h"
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#include "crc32_hash.h"
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#include "checksum.h"
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#include "ipv4_utils.h"
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#include "ipv6_utils.h"
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#include "packet_helpers.h"
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#include "ip_reassemble.h"
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#define IP_FRAG_HASH_FNUM 2
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#define PRIME_VALUE 0xeaad8405
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#define IP_FRAG_TBL_POS(mgr, sig) ((mgr)->table + ((sig) & (mgr)->entry_mask))
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#define IPV4_KEYLEN 1
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#define IPV6_KEYLEN 4
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#define IPv6_KEY_BYTES(key) (key)[0], (key)[1], (key)[2], (key)[3]
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#define IP_REASSEMBLE_DEBUG_ARG1(desc, key, ...) \
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do \
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{ \
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if ((key)->src_dst_len == IPV4_KEYLEN) \
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{ \
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IP_REASSEMBLE_DEBUG(desc, "key <%lu, %#x>", (key)->src_dst_addr[0], (key)->ip_id); \
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} \
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else \
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{ \
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IP_REASSEMBLE_DEBUG(desc, "key <%08lu%08lu%08lu%08lu, %#x>", IPv6_KEY_BYTES((key)->src_dst_addr), (key)->ip_id); \
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} \
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} while (0)
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#define IP_REASSEMBLE_ERROR_ARG1(desc, key, ...) \
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do \
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{ \
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if ((key)->src_dst_len == IPV4_KEYLEN) \
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{ \
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IP_REASSEMBLE_ERROR(desc, "key <%lu, %#x>", (key)->src_dst_addr[0], (key)->ip_id); \
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} \
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else \
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{ \
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IP_REASSEMBLE_ERROR(desc, "key <%08lu%08lu%08lu%08lu, %#x>", IPv6_KEY_BYTES((key)->src_dst_addr), (key)->ip_id); \
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} \
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} while (0)
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/******************************************************************************
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* Structs
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******************************************************************************/
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enum
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{
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IP_LAST_FRAG_IDX,
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IP_FIRST_FRAG_IDX,
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IP_MIN_FRAG_NUM,
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IP_MAX_FRAG_NUM = 8,
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};
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struct ip_frag_hdr
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{
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uint16_t l3_offset;
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uint16_t l3_len;
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uint16_t hdr_len;
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uint8_t next_proto;
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void *hdr_data; // need be freed
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};
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struct ip_frag_pkt
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{
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uint16_t offset;
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uint16_t len;
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void *data; // need be freed
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};
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struct ip_flow_key
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{
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uint64_t src_dst_addr[4]; // src and dst address (only first 8 bytes used for IPv4)
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uint32_t src_dst_len;
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uint32_t ip_id; // ipv4: identification is uint16_t; ipv6: identification is uint32_t
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uint8_t proto;
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};
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struct ip_flow
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{
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struct
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{
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struct ip_flow *tqe_next;
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struct ip_flow **tqe_prev;
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} lru;
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struct ip_flow_key key;
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struct ip_frag_hdr hdr;
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uint64_t create_time;
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uint32_t expected_total_size;
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uint32_t received_frag_size;
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uint32_t next_fill_idx;
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struct ip_frag_pkt frags[IP_MAX_FRAG_NUM]; // first two entries in the frags[] array are for the last and first fragments.
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};
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struct ip_reassemble_stat
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{
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uint64_t find_num;
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uint64_t add_num;
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uint64_t del_num;
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uint64_t fail_total;
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uint64_t fail_nospace;
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};
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struct ip_reassemble_manager
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{
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// config
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bool enable;
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uint32_t timeout;
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uint32_t bucket_entries;
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uint32_t bucket_num;
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// runtime
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uint32_t entry_used;
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uint32_t entry_total;
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uint32_t entry_mask;
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// stats
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struct ip_reassemble_stat stat;
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// hash table
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struct
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{
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struct ip_flow *tqh_first;
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struct ip_flow **tqh_last;
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} lru;
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struct ip_flow *last;
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struct ip_flow *table; // array of ip_frag_pkt
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};
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/******************************************************************************
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* Private API
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******************************************************************************/
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static inline uint32_t combine32ms1b(uint32_t x)
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{
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x |= x >> 1;
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x |= x >> 2;
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x |= x >> 4;
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x |= x >> 8;
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x |= x >> 16;
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return x;
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}
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static inline uint32_t align32pow2(uint32_t x)
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{
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x--;
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x = combine32ms1b(x);
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return x + 1;
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}
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static inline int is_power_of_2(uint32_t n)
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{
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return n && !(n & (n - 1));
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}
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static inline int ip_reassemble_check_config(const struct ip_reassemble_config *config)
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{
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if (config == NULL)
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{
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IP_REASSEMBLE_DEBUG("invalid config");
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return -1;
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}
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if (config->enable)
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{
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if (config->timeout == 0)
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{
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IP_REASSEMBLE_DEBUG("invalid timeout");
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return -1;
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}
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if (config->bucket_entries == 0 || is_power_of_2(config->bucket_entries) == 0)
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{
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IP_REASSEMBLE_DEBUG("invalid bucket entries, must be power of 2");
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return -1;
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}
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if (config->bucket_num == 0)
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{
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IP_REASSEMBLE_DEBUG("invalid bucket num");
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return -1;
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}
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}
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return 0;
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}
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/******************************************************************************
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* struct ip_flow_key
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******************************************************************************/
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static inline void ipv4_flow_key_hash(const struct ip_flow_key *key, uint32_t *value1, uint32_t *value2)
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{
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uint32_t v = 0;
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const uint32_t *p = (const uint32_t *)&key->src_dst_addr;
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v = crc32_hash_4byte(p[0], PRIME_VALUE);
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v = crc32_hash_4byte(p[1], v);
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v = crc32_hash_4byte(key->ip_id, v);
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*value1 = v;
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*value2 = (v << 7) + (v >> 14);
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}
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static inline void ipv6_flow_key_hash(const struct ip_flow_key *key, uint32_t *value1, uint32_t *value2)
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{
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uint32_t v = 0;
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const uint32_t *p = (const uint32_t *)&key->src_dst_addr;
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v = crc32_hash_4byte(p[0], PRIME_VALUE);
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v = crc32_hash_4byte(p[1], v);
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v = crc32_hash_4byte(p[2], v);
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v = crc32_hash_4byte(p[3], v);
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v = crc32_hash_4byte(p[4], v);
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v = crc32_hash_4byte(p[5], v);
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v = crc32_hash_4byte(p[6], v);
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v = crc32_hash_4byte(p[7], v);
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v = crc32_hash_4byte(key->ip_id, v);
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*value1 = v;
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*value2 = (v << 7) + (v >> 14);
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}
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static inline uint64_t ip_flow_key_cmp(const struct ip_flow_key *key1, const struct ip_flow_key *key2)
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{
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if (key1->ip_id != key2->ip_id)
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{
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return 1;
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}
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if (key1->src_dst_len != key2->src_dst_len)
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{
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return 1;
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}
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for (uint32_t i = 0; i < key1->src_dst_len; i++)
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{
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if (key1->src_dst_addr[i] != key2->src_dst_addr[i])
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{
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return 1;
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}
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}
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return 0;
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}
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static inline int ip_flow_key_is_empty(const struct ip_flow_key *key)
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{
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return (key->src_dst_len == 0);
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}
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static inline void ip_flow_key_zero(struct ip_flow_key *key)
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{
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key->src_dst_addr[0] = 0;
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key->src_dst_addr[1] = 0;
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key->src_dst_addr[2] = 0;
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key->src_dst_addr[3] = 0;
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key->src_dst_len = 0;
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key->ip_id = 0;
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}
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/******************************************************************************
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* struct ip_frag_hdr
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******************************************************************************/
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static inline void *memdup(const void *src, size_t len)
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{
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if (src == NULL || len == 0)
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{
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return NULL;
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}
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void *dst = malloc(len);
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if (dst == NULL)
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{
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return NULL;
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}
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return memcpy(dst, src, len);
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}
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static inline void ip_frag_hdr_init(struct ip_frag_hdr *hdr, const struct packet *pkt)
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{
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struct layer_record *layer = pkt->frag_layer;
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if (layer->type == LAYER_TYPE_IPV6)
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{
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struct ip6_frag *frag_ext = ipv6_hdr_get_frag_ext((const struct ip6_hdr *)layer->hdr_ptr);
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hdr->next_proto = frag_ext->ip6f_nxt;
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}
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else
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{
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hdr->next_proto = ipv4_hdr_get_proto((const struct ip *)layer->hdr_ptr);
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}
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hdr->l3_offset = layer->hdr_offset;
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hdr->l3_len = layer->hdr_len;
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hdr->hdr_len = layer->hdr_offset + layer->hdr_len;
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hdr->hdr_data = memdup(pkt->data_ptr, hdr->hdr_len);
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}
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static inline void ip_frag_hdr_free(struct ip_frag_hdr *hdr)
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{
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hdr->next_proto = 0;
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hdr->l3_offset = 0;
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hdr->l3_len = 0;
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hdr->hdr_len = 0;
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if (hdr->hdr_data != NULL)
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{
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free(hdr->hdr_data);
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hdr->hdr_data = NULL;
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}
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}
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/******************************************************************************
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* struct ip_flow
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******************************************************************************/
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static inline void ip_flow_init(struct ip_flow *flow, const struct ip_flow_key *key)
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{
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static const struct ip_frag_pkt zero_frag = {
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.offset = 0,
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.len = 0,
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.data = NULL,
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};
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flow->lru.tqe_next = NULL;
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flow->lru.tqe_prev = NULL;
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flow->key = *key;
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flow->create_time = timestamp_get_msec();
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flow->expected_total_size = UINT32_MAX;
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flow->received_frag_size = 0;
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flow->next_fill_idx = IP_MIN_FRAG_NUM;
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flow->frags[IP_LAST_FRAG_IDX] = zero_frag;
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flow->frags[IP_FIRST_FRAG_IDX] = zero_frag;
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}
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static inline void ip_flow_free(struct ip_flow *flow)
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{
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for (uint32_t i = 0; i < IP_MAX_FRAG_NUM; i++)
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{
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struct ip_frag_pkt *frag = &flow->frags[i];
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frag->offset = 0;
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frag->len = 0;
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if (frag->data != NULL)
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{
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free(frag->data);
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frag->data = NULL;
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}
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}
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ip_flow_key_zero(&flow->key);
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ip_frag_hdr_free(&flow->hdr);
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}
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static inline int ip_flow_is_ready(struct ip_flow *flow)
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{
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return (flow->received_frag_size == flow->expected_total_size && flow->frags[IP_FIRST_FRAG_IDX].data != NULL);
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}
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// return 0 : success
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// return -1 : failed
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static inline int ip_flow_update(struct ip_flow *flow, const struct packet *pkt,
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char *data, uint16_t len, uint16_t offset, bool more_frags)
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{
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uint32_t idx;
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if (offset == 0)
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{
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if (flow->frags[IP_FIRST_FRAG_IDX].data != NULL)
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{
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IP_REASSEMBLE_ERROR_ARG1("duplicate first fragment encountered: ", &flow->key);
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return -1;
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}
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idx = IP_FIRST_FRAG_IDX;
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ip_frag_hdr_init(&flow->hdr, pkt);
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}
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else if (more_frags == 0)
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{
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if (flow->frags[IP_LAST_FRAG_IDX].data != NULL)
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{
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IP_REASSEMBLE_ERROR_ARG1("duplicate last fragment encountered: ", &flow->key);
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return -1;
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}
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idx = IP_LAST_FRAG_IDX;
|
||||
flow->expected_total_size = offset + len;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (flow->next_fill_idx >= IP_MAX_FRAG_NUM)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR_ARG1("max number of fragment exceeded: ", &flow->key);
|
||||
return -1;
|
||||
}
|
||||
idx = flow->next_fill_idx;
|
||||
flow->next_fill_idx++;
|
||||
}
|
||||
|
||||
flow->received_frag_size += len;
|
||||
flow->frags[idx].data = memdup(data, len);
|
||||
flow->frags[idx].offset = offset;
|
||||
flow->frags[idx].len = len;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* ip flow table
|
||||
******************************************************************************/
|
||||
|
||||
static inline void ip_flow_table_add(struct ip_reassemble_manager *mgr, struct ip_flow *flow)
|
||||
{
|
||||
TAILQ_INSERT_TAIL(&mgr->lru, flow, lru);
|
||||
mgr->entry_used++;
|
||||
mgr->stat.add_num++;
|
||||
}
|
||||
|
||||
static inline void ip_flow_table_del(struct ip_reassemble_manager *mgr, struct ip_flow *flow)
|
||||
{
|
||||
TAILQ_REMOVE(&mgr->lru, flow, lru);
|
||||
mgr->entry_used--;
|
||||
mgr->stat.del_num++;
|
||||
}
|
||||
|
||||
static inline void ip_flow_table_reuse(struct ip_reassemble_manager *mgr, struct ip_flow *flow)
|
||||
{
|
||||
ip_flow_table_del(mgr, flow);
|
||||
ip_flow_table_add(mgr, flow);
|
||||
}
|
||||
|
||||
/*
|
||||
* if return NULL, then *free and *expired are valid
|
||||
* free : the first empty entry in the bucket
|
||||
* expired: the first timed-out entry in the bucket
|
||||
*/
|
||||
static struct ip_flow *ip_flow_table_find(struct ip_reassemble_manager *mgr, const struct ip_flow_key *key, struct ip_flow **free, struct ip_flow **expired)
|
||||
{
|
||||
mgr->stat.find_num++;
|
||||
|
||||
if (mgr->last != NULL && ip_flow_key_cmp(key, &mgr->last->key) == 0)
|
||||
{
|
||||
return mgr->last;
|
||||
}
|
||||
|
||||
uint32_t sig1 = 0;
|
||||
uint32_t sig2 = 0;
|
||||
uint64_t timeout = mgr->timeout;
|
||||
uint32_t assoc = mgr->bucket_entries;
|
||||
uint64_t tms = timestamp_get_msec();
|
||||
|
||||
if (key->src_dst_len == IPV4_KEYLEN)
|
||||
{
|
||||
ipv4_flow_key_hash(key, &sig1, &sig2);
|
||||
}
|
||||
else
|
||||
{
|
||||
ipv6_flow_key_hash(key, &sig1, &sig2);
|
||||
}
|
||||
|
||||
// get the bucket by hash
|
||||
struct ip_flow *p1 = IP_FRAG_TBL_POS(mgr, sig1);
|
||||
struct ip_flow *p2 = IP_FRAG_TBL_POS(mgr, sig2);
|
||||
|
||||
// search in the bucket
|
||||
struct ip_flow *old = NULL;
|
||||
struct ip_flow *empty = NULL;
|
||||
for (uint32_t i = 0; i != assoc; i++)
|
||||
{
|
||||
if (ip_flow_key_cmp(key, &p1[i].key) == 0)
|
||||
{
|
||||
*free = NULL;
|
||||
*expired = NULL;
|
||||
return p1 + i;
|
||||
}
|
||||
else if (ip_flow_key_is_empty(&p1[i].key))
|
||||
{
|
||||
empty = (empty == NULL) ? (p1 + i) : empty;
|
||||
}
|
||||
else if (timeout + p1[i].create_time < tms)
|
||||
{
|
||||
old = (old == NULL) ? (p1 + i) : old;
|
||||
}
|
||||
|
||||
if (ip_flow_key_cmp(key, &p2[i].key) == 0)
|
||||
{
|
||||
*free = NULL;
|
||||
*expired = NULL;
|
||||
return p2 + i;
|
||||
}
|
||||
else if (ip_flow_key_is_empty(&p2[i].key))
|
||||
{
|
||||
empty = (empty == NULL) ? (p2 + i) : empty;
|
||||
}
|
||||
else if (timeout + p2[i].create_time < tms)
|
||||
{
|
||||
old = (old == NULL) ? (p2 + i) : old;
|
||||
}
|
||||
}
|
||||
|
||||
*free = empty;
|
||||
*expired = old;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static struct ip_flow *ip_flow_table_update(struct ip_reassemble_manager *mgr, const struct ip_flow_key *key)
|
||||
{
|
||||
struct ip_flow *free = NULL;
|
||||
struct ip_flow *expired = NULL;
|
||||
struct ip_flow *flow = NULL;
|
||||
uint64_t tms = timestamp_get_msec();
|
||||
|
||||
flow = ip_flow_table_find(mgr, key, &free, &expired);
|
||||
if (flow == NULL)
|
||||
{
|
||||
if (expired)
|
||||
{
|
||||
IP_REASSEMBLE_DEBUG_ARG1("ip flow new (use expired iterm): ", key);
|
||||
ip_flow_free(expired);
|
||||
ip_flow_init(expired, key);
|
||||
ip_flow_table_reuse(mgr, expired);
|
||||
|
||||
mgr->last = expired;
|
||||
return expired;
|
||||
}
|
||||
|
||||
if (free)
|
||||
{
|
||||
IP_REASSEMBLE_DEBUG_ARG1("ip flow new (use free iterm): ", key);
|
||||
ip_flow_init(free, key);
|
||||
ip_flow_table_add(mgr, free);
|
||||
|
||||
mgr->last = free;
|
||||
return free;
|
||||
}
|
||||
|
||||
// no space
|
||||
IP_REASSEMBLE_DEBUG_ARG1("bucket full discarding new fragmented packets: ", key);
|
||||
mgr->stat.fail_nospace++;
|
||||
return NULL;
|
||||
}
|
||||
else
|
||||
{
|
||||
// expired
|
||||
if (mgr->timeout + flow->create_time < tms)
|
||||
{
|
||||
IP_REASSEMBLE_DEBUG_ARG1("ip flow find, but expired: ", key);
|
||||
ip_flow_free(flow);
|
||||
ip_flow_init(flow, key);
|
||||
ip_flow_table_reuse(mgr, flow);
|
||||
|
||||
mgr->last = flow;
|
||||
return flow;
|
||||
}
|
||||
// not expired
|
||||
else
|
||||
{
|
||||
IP_REASSEMBLE_DEBUG_ARG1("ip flow find, not expired: ", key);
|
||||
mgr->last = flow;
|
||||
return flow;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void ip_flow_table_expire(struct ip_reassemble_manager *mgr)
|
||||
{
|
||||
struct ip_flow *flow = NULL;
|
||||
uint64_t curr_ts = timestamp_get_msec();
|
||||
uint64_t timeout = mgr->timeout;
|
||||
|
||||
TAILQ_FOREACH(flow, &mgr->lru, lru)
|
||||
if (timeout + flow->create_time < curr_ts)
|
||||
{
|
||||
IP_REASSEMBLE_DEBUG_ARG1("time expires discarding old fragmented packets: ", &flow->key);
|
||||
ip_flow_free(flow);
|
||||
ip_flow_table_del(mgr, flow);
|
||||
}
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* frag reassemble
|
||||
******************************************************************************/
|
||||
|
||||
static struct packet *ip_frag_reassemble(struct ip_flow *flow)
|
||||
{
|
||||
struct ip_frag_pkt *first = &flow->frags[IP_FIRST_FRAG_IDX];
|
||||
struct ip_frag_pkt *last = &flow->frags[IP_LAST_FRAG_IDX];
|
||||
struct ip_frag_pkt *temp = NULL;
|
||||
|
||||
// calculate the length of the reassembled packet
|
||||
uint32_t buff_len = flow->expected_total_size + flow->hdr.hdr_len;
|
||||
char *buff = (char *)calloc(1, buff_len + sizeof(struct packet));
|
||||
if (buff == NULL)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR("unable to allocate memory");
|
||||
return NULL;
|
||||
}
|
||||
|
||||
char *ptr = buff + sizeof(struct packet);
|
||||
char *end = ptr + buff_len;
|
||||
|
||||
// copy last frag
|
||||
if (last->len > end - ptr)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR_ARG1("last packet length is greater than the expected reassembled length: ", &flow->key);
|
||||
free(buff);
|
||||
return NULL;
|
||||
}
|
||||
end -= last->len;
|
||||
memcpy(end, last->data, last->len);
|
||||
|
||||
uint32_t loop = 0;
|
||||
uint16_t last_offset = last->offset;
|
||||
while (first->len != last_offset)
|
||||
{
|
||||
/*
|
||||
* https://datatracker.ietf.org/doc/html/rfc791
|
||||
*
|
||||
* In the case that two or more fragments contain the same data
|
||||
* either identically or through a partial overlap, this procedure
|
||||
* will use the more recently arrived copy in the data buffer and
|
||||
* datagram delivered.
|
||||
*/
|
||||
|
||||
for (uint32_t i = flow->next_fill_idx - 1; i >= IP_MIN_FRAG_NUM; i--)
|
||||
{
|
||||
if (i == IP_FIRST_FRAG_IDX || i == IP_LAST_FRAG_IDX)
|
||||
{
|
||||
continue;
|
||||
}
|
||||
|
||||
temp = &flow->frags[i];
|
||||
if (temp->offset + temp->len == last_offset)
|
||||
{
|
||||
if (temp->len > end - ptr)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR_ARG1("middle fragment packet length doesn't match last fragment packet offset: ", &flow->key);
|
||||
free(buff);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
end -= temp->len;
|
||||
memcpy(end, temp->data, temp->len);
|
||||
last_offset = temp->offset;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
if (loop > flow->next_fill_idx)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR_ARG1("holes appear during frag reassemble: ", &flow->key);
|
||||
free(buff);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
loop++;
|
||||
}
|
||||
|
||||
// copy fist fragment data
|
||||
if (first->len > end - ptr)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR_ARG1("last packet length is greater than the expected reassembled length: ", &flow->key);
|
||||
free(buff);
|
||||
return NULL;
|
||||
}
|
||||
end -= first->len;
|
||||
memcpy(end, first->data, first->len);
|
||||
|
||||
// copy frag hdr
|
||||
if (flow->hdr.hdr_len > end - ptr)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR_ARG1("hdr length is greater than the expected reassembled length: ", &flow->key);
|
||||
free(buff);
|
||||
return NULL;
|
||||
}
|
||||
end -= flow->hdr.hdr_len;
|
||||
memcpy(end, flow->hdr.hdr_data, flow->hdr.hdr_len);
|
||||
assert(ptr == end);
|
||||
|
||||
if (flow->key.src_dst_len == IPV4_KEYLEN)
|
||||
{
|
||||
// update ip total length & ip checksum
|
||||
struct ip *hdr = (struct ip *)(ptr + flow->hdr.l3_offset);
|
||||
ipv4_hdr_set_total_len(hdr, buff_len - flow->hdr.l3_offset); // update total length
|
||||
ipv4_hdr_set_mf_flag(hdr, false); // update more fragment flag
|
||||
ipv4_hdr_set_frag_offset(hdr, 0); // update fragment offset
|
||||
hdr->ip_sum = 0; // update checksum
|
||||
hdr->ip_sum = checksum((char *)hdr, flow->hdr.l3_len);
|
||||
}
|
||||
else
|
||||
{
|
||||
// update ipv6 payload length & next header
|
||||
struct ip6_hdr *hdr = (struct ip6_hdr *)(ptr + flow->hdr.l3_offset);
|
||||
ipv6_hdr_set_payload_len(hdr, flow->expected_total_size); // update payload length
|
||||
ipv6_hdr_set_next_header(hdr, flow->hdr.next_proto); // update next header
|
||||
}
|
||||
|
||||
// create a new packet
|
||||
struct packet *new_pkt = (struct packet *)buff;
|
||||
packet_parse(new_pkt, buff + sizeof(struct packet), buff_len);
|
||||
|
||||
return new_pkt;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* Public API
|
||||
******************************************************************************/
|
||||
|
||||
struct ip_reassemble_manager *ip_reassemble_manager_create(const struct ip_reassemble_config *config)
|
||||
{
|
||||
// TODO
|
||||
if (ip_reassemble_check_config(config) != 0)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct ip_reassemble_manager *mgr = (struct ip_reassemble_manager *)calloc(1, sizeof(struct ip_reassemble_manager));
|
||||
if (mgr == NULL)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR("unable to allocate memory");
|
||||
return NULL;
|
||||
}
|
||||
mgr->enable = config->enable;
|
||||
mgr->timeout = config->timeout;
|
||||
mgr->bucket_entries = config->bucket_entries;
|
||||
mgr->bucket_num = config->bucket_num;
|
||||
|
||||
if (!mgr->enable)
|
||||
{
|
||||
return mgr;
|
||||
}
|
||||
|
||||
uint64_t entry_total = align32pow2(mgr->bucket_num) * mgr->bucket_entries * IP_FRAG_HASH_FNUM;
|
||||
if (entry_total > UINT32_MAX)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR("bucket_num * bucket_entries is too large");
|
||||
free(mgr);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
mgr->entry_total = (uint32_t)entry_total;
|
||||
mgr->entry_mask = (mgr->entry_total - 1) & ~(mgr->bucket_entries - 1);
|
||||
mgr->table = (struct ip_flow *)calloc(mgr->entry_total, sizeof(struct ip_flow));
|
||||
if (mgr->table == NULL)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR("unable to allocate memory");
|
||||
free(mgr);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
TAILQ_INIT(&(mgr->lru));
|
||||
|
||||
return mgr;
|
||||
}
|
||||
|
||||
void ip_reassemble_manager_destory(struct ip_reassemble_manager *mgr)
|
||||
{
|
||||
// TODO
|
||||
if (mgr)
|
||||
{
|
||||
if (mgr->table)
|
||||
{
|
||||
for (uint32_t i = 0; i < mgr->entry_total; i++)
|
||||
{
|
||||
ip_flow_free(mgr->table + i);
|
||||
}
|
||||
|
||||
free(mgr->table);
|
||||
mgr->table = NULL;
|
||||
}
|
||||
free(mgr);
|
||||
mgr = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
void ip_reassemble_manager_stat(struct ip_reassemble_manager *mgr)
|
||||
@@ -20,12 +791,185 @@ void ip_reassemble_manager_stat(struct ip_reassemble_manager *mgr)
|
||||
* The returned packet should be freed by calling the packet_free() function
|
||||
*/
|
||||
|
||||
struct packet *ip_reassemble_packet(struct ip_reassemble_manager *mgr, const struct packet *pkt)
|
||||
{
|
||||
struct packet *pkt1;
|
||||
struct packet *pkt2;
|
||||
|
||||
if (!mgr->enable)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
const struct layer_record *layer = pkt->frag_layer;
|
||||
if (layer == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (layer->type == LAYER_TYPE_IPV4)
|
||||
{
|
||||
pkt1 = ipv4_reassemble_packet(mgr, pkt);
|
||||
if (pkt1 && pkt1->frag_layer)
|
||||
{
|
||||
pkt2 = ip_reassemble_packet(mgr, pkt);
|
||||
packet_free(pkt1);
|
||||
return pkt2;
|
||||
}
|
||||
|
||||
return pkt1;
|
||||
}
|
||||
else if (layer->type == LAYER_TYPE_IPV6)
|
||||
{
|
||||
pkt1 = ipv6_reassemble_packet(mgr, pkt);
|
||||
if (pkt1 && pkt1->frag_layer)
|
||||
{
|
||||
pkt2 = ip_reassemble_packet(mgr, pkt);
|
||||
packet_free(pkt1);
|
||||
return pkt2;
|
||||
}
|
||||
|
||||
return pkt1;
|
||||
}
|
||||
else
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
}
|
||||
|
||||
struct packet *ipv4_reassemble_packet(struct ip_reassemble_manager *mgr, const struct packet *pkt)
|
||||
{
|
||||
// TODO
|
||||
struct layer_record *layer = pkt->frag_layer;
|
||||
struct ip *hdr = (struct ip *)layer->hdr_ptr;
|
||||
char *data = (char *)layer->pld_ptr;
|
||||
uint16_t len = ipv4_hdr_get_total_len(hdr) - ipv4_hdr_get_hdr_len(hdr);
|
||||
if (len > layer->pld_len)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR("unexpected header length on fragmented packet, ip_id: %lu", ipv4_hdr_get_ipid(hdr));
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct ip_flow_key key = {0};
|
||||
uint64_t src_addr = hdr->ip_src.s_addr;
|
||||
uint64_t dst_addr = hdr->ip_dst.s_addr;
|
||||
key.src_dst_addr[0] = src_addr << 32 | dst_addr;
|
||||
key.src_dst_len = IPV4_KEYLEN;
|
||||
key.ip_id = ipv4_hdr_get_ipid(hdr);
|
||||
key.proto = ipv4_hdr_get_proto(hdr);
|
||||
struct ip_flow *flow = ip_flow_table_update(mgr, &key);
|
||||
if (flow == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
bool more_frags = ipv4_hdr_get_mf_flag(hdr);
|
||||
uint16_t offset = ipv4_hdr_get_frag_offset(hdr);
|
||||
if (ip_flow_update(flow, pkt, data, len, offset, more_frags) != 0)
|
||||
{
|
||||
ip_flow_free(flow);
|
||||
ip_flow_table_del(mgr, flow);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (!ip_flow_is_ready(flow))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct packet *new_pkt = ip_frag_reassemble(flow);
|
||||
ip_flow_free(flow);
|
||||
ip_flow_table_del(mgr, flow);
|
||||
|
||||
return new_pkt;
|
||||
}
|
||||
|
||||
/*
|
||||
* https://datatracker.ietf.org/doc/html/rfc8200#section-4.5
|
||||
*
|
||||
* Note: unlike IPv4, fragmentation in IPv6 is performed only by source nodes,
|
||||
* not by routers along a packet's delivery path
|
||||
*/
|
||||
|
||||
/*
|
||||
* original packet:
|
||||
* +-----------------+-----------------+--------+--------+-//-+--------+
|
||||
* | Per-Fragment |Ext & Upper-Layer| first | second | | last |
|
||||
* | Headers | Headers |fragment|fragment|....|fragment|
|
||||
* +-----------------+-----------------+--------+--------+-//-+--------+
|
||||
*
|
||||
* fragment packets:
|
||||
* +-----------------+--------+-------------------+----------+
|
||||
* | Per-Fragment |Fragment| Ext & Upper-Layer | first |
|
||||
* | Headers | Header | Headers | fragment |
|
||||
* +-----------------+--------+-------------------+----------+
|
||||
*
|
||||
* +-----------------+--------+----------+
|
||||
* | Per-Fragment |Fragment| second |
|
||||
* | Headers | Header | fragment |
|
||||
* +-----------------+--------+----------+
|
||||
* o
|
||||
* o
|
||||
* o
|
||||
* +-----------------+--------+----------+
|
||||
* | Per-Fragment |Fragment| last |
|
||||
* | Headers | Header | fragment |
|
||||
* +-----------------+--------+----------+
|
||||
*
|
||||
* reassembled packet:
|
||||
* +-----------------+-----------------+--------+--------+-//-+--------+
|
||||
* | Per-Fragment |Ext & Upper-Layer| first | second | | last |
|
||||
* | Headers | Headers |fragment|fragment|....|fragment|
|
||||
* +-----------------+-----------------+--------+--------+-//-+--------+
|
||||
*/
|
||||
|
||||
struct packet *ipv6_reassemble_packet(struct ip_reassemble_manager *mgr, const struct packet *pkt)
|
||||
{
|
||||
// TODO
|
||||
struct layer_record *layer = pkt->frag_layer;
|
||||
const struct ip6_hdr *hdr = (const struct ip6_hdr *)layer->hdr_ptr;
|
||||
struct ip6_frag *frag_ext = ipv6_hdr_get_frag_ext(hdr);
|
||||
if (frag_ext == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
struct ip_flow_key key = {0};
|
||||
memcpy(&key.src_dst_addr[0], hdr->ip6_src.s6_addr, 16);
|
||||
memcpy(&key.src_dst_addr[2], hdr->ip6_dst.s6_addr, 16);
|
||||
key.src_dst_len = IPV6_KEYLEN;
|
||||
key.ip_id = frag_ext->ip6f_ident;
|
||||
key.proto = 0; // only first fragment has the upper layer protocol
|
||||
|
||||
struct ip_flow *flow = ip_flow_table_update(mgr, &key);
|
||||
if (flow == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
char *data = (char *)layer->hdr_ptr + sizeof(struct ip6_hdr) + sizeof(struct ip6_frag);
|
||||
uint16_t len = ipv6_hdr_get_payload_len(hdr) - sizeof(struct ip6_frag);
|
||||
|
||||
if (data + len > pkt->data_ptr + pkt->data_len)
|
||||
{
|
||||
IP_REASSEMBLE_ERROR("unexpected header length on fragmented packet, frag_id: %lu", frag_ext->ip6f_ident);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
bool more_frags = (frag_ext->ip6f_offlg & IP6F_MORE_FRAG);
|
||||
uint16_t offset = ntohs(frag_ext->ip6f_offlg & IP6F_OFF_MASK);
|
||||
if (ip_flow_update(flow, pkt, data, len, offset, more_frags) != 0)
|
||||
{
|
||||
ip_flow_free(flow);
|
||||
ip_flow_table_del(mgr, flow);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (!ip_flow_is_ready(flow))
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct packet *new_pkt = ip_frag_reassemble(flow);
|
||||
ip_flow_free(flow);
|
||||
ip_flow_table_del(mgr, flow);
|
||||
|
||||
return new_pkt;
|
||||
}
|
||||
@@ -14,10 +14,9 @@ extern "C"
|
||||
|
||||
struct ip_reassemble_config
|
||||
{
|
||||
bool enable_reassemble;
|
||||
bool enable;
|
||||
|
||||
uint32_t max_cycles;
|
||||
uint32_t max_entries;
|
||||
uint32_t timeout;
|
||||
uint32_t bucket_entries;
|
||||
uint32_t bucket_num;
|
||||
};
|
||||
@@ -30,6 +29,7 @@ void ip_reassemble_manager_stat(struct ip_reassemble_manager *mgr);
|
||||
* Returns the reassembled packet, or NULL if the packet is not reassembled
|
||||
* The returned packet should be freed by calling the packet_free() function
|
||||
*/
|
||||
struct packet *ip_reassemble_packet(struct ip_reassemble_manager *mgr, const struct packet *pkt);
|
||||
struct packet *ipv4_reassemble_packet(struct ip_reassemble_manager *mgr, const struct packet *pkt);
|
||||
struct packet *ipv6_reassemble_packet(struct ip_reassemble_manager *mgr, const struct packet *pkt);
|
||||
|
||||
|
||||
13
src/ip_reassemble/test/CMakeLists.txt
Normal file
13
src/ip_reassemble/test/CMakeLists.txt
Normal file
@@ -0,0 +1,13 @@
|
||||
###############################################################################
|
||||
# gtest
|
||||
###############################################################################
|
||||
|
||||
add_executable(gtest_ipv4_reassemble gtest_ipv4_reassemble.cpp)
|
||||
target_link_libraries(gtest_ipv4_reassemble ip_reassemble gtest)
|
||||
|
||||
add_executable(gtest_ipv6_reassemble gtest_ipv6_reassemble.cpp)
|
||||
target_link_libraries(gtest_ipv6_reassemble ip_reassemble gtest)
|
||||
|
||||
include(GoogleTest)
|
||||
gtest_discover_tests(gtest_ipv4_reassemble)
|
||||
gtest_discover_tests(gtest_ipv6_reassemble)
|
||||
300
src/ip_reassemble/test/gtest_ipv4_reassemble.cpp
Normal file
300
src/ip_reassemble/test/gtest_ipv4_reassemble.cpp
Normal file
@@ -0,0 +1,300 @@
|
||||
#include <gtest/gtest.h>
|
||||
|
||||
#include "timestamp.h"
|
||||
#include "tcp_utils.h"
|
||||
#include "ipv4_utils.h"
|
||||
#include "packet_helpers.h"
|
||||
#include "ip_reassemble.h"
|
||||
|
||||
struct ip_reassemble_config config = {
|
||||
.enable = true,
|
||||
.timeout = 1000,
|
||||
.bucket_entries = 16,
|
||||
.bucket_num = 8,
|
||||
};
|
||||
|
||||
/*
|
||||
* Frame 4: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
|
||||
* Ethernet II, Src: Fortinet_cc:87:22 (e8:1c:ba:cc:87:22), Dst: EvocInte_2f:35:b8 (00:22:46:2f:35:b8)
|
||||
* Destination: EvocInte_2f:35:b8 (00:22:46:2f:35:b8)
|
||||
* Address: EvocInte_2f:35:b8 (00:22:46:2f:35:b8)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Source: Fortinet_cc:87:22 (e8:1c:ba:cc:87:22)
|
||||
* Address: Fortinet_cc:87:22 (e8:1c:ba:cc:87:22)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Type: IPv4 (0x0800)
|
||||
* Padding: 0000
|
||||
* Internet Protocol Version 4, Src: 192.168.36.103, Dst: 192.168.40.137
|
||||
* 0100 .... = Version: 4
|
||||
* .... 0101 = Header Length: 20 bytes (5)
|
||||
* Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
|
||||
* 0000 00.. = Differentiated Services Codepoint: Default (0)
|
||||
* .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
|
||||
* Total Length: 44
|
||||
* Identification: 0xffff (65535)
|
||||
* 001. .... = Flags: 0x1, More fragments
|
||||
* 0... .... = Reserved bit: Not set
|
||||
* .0.. .... = Don't fragment: Not set
|
||||
* ..1. .... = More fragments: Set
|
||||
* ...0 0000 0000 0000 = Fragment Offset: 0
|
||||
* Time to Live: 127
|
||||
* Protocol: TCP (6)
|
||||
* Header Checksum: 0x4d8b [correct]
|
||||
* [Header checksum status: Good]
|
||||
* [Calculated Checksum: 0x4d8b]
|
||||
* Source Address: 192.168.36.103
|
||||
* Destination Address: 192.168.40.137
|
||||
* [Reassembled IPv4 in frame: 5]
|
||||
* Data (24 bytes)
|
||||
* Data: f4a5270f9107248703d518e75018ff005e9200003132330a
|
||||
* [Length: 24]
|
||||
*/
|
||||
|
||||
unsigned char frag1[] = {
|
||||
/* ETH */
|
||||
0x00, 0x22, 0x46, 0x2f, 0x35, 0xb8, 0xe8, 0x1c, 0xba, 0xcc, 0x87, 0x22, 0x08, 0x00,
|
||||
/* IP */
|
||||
0x45, 0x00, // version & hdr len & tos
|
||||
0x00, 0x2c, // total length
|
||||
0xff, 0xff, // ip id
|
||||
0x20, 0x00, // flags & frag offset
|
||||
0x7f, 0x06, // ttl & protocol
|
||||
0x4d, 0x8b, // checksum
|
||||
0xc0, 0xa8, 0x24, 0x67, // src addr
|
||||
0xc0, 0xa8, 0x28, 0x89, // dst addr
|
||||
/* TCP */
|
||||
0xf4, 0xa5, // src port
|
||||
0x27, 0x0f, // dst port
|
||||
0x91, 0x07, 0x24, 0x87, // seq
|
||||
0x03, 0xd5, 0x18, 0xe7, // ack
|
||||
0x50, 0x18, // data offset & flags
|
||||
0xff, 0x00, // windows
|
||||
0x5e, 0x92, // checksum
|
||||
0x00, 0x00, // urgent pointer
|
||||
/* DATA */
|
||||
0x31, 0x32, 0x33, 0x0a,
|
||||
/* Padding */
|
||||
0x00, 0x00};
|
||||
|
||||
/*
|
||||
* Frame 5: 60 bytes on wire (480 bits), 60 bytes captured (480 bits)
|
||||
* Ethernet II, Src: Fortinet_cc:87:22 (e8:1c:ba:cc:87:22), Dst: EvocInte_2f:35:b8 (00:22:46:2f:35:b8)
|
||||
* Destination: EvocInte_2f:35:b8 (00:22:46:2f:35:b8)
|
||||
* Address: EvocInte_2f:35:b8 (00:22:46:2f:35:b8)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Source: Fortinet_cc:87:22 (e8:1c:ba:cc:87:22)
|
||||
* Address: Fortinet_cc:87:22 (e8:1c:ba:cc:87:22)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Type: IPv4 (0x0800)
|
||||
* Padding: 0000
|
||||
* Internet Protocol Version 4, Src: 192.168.36.103, Dst: 192.168.40.137
|
||||
* 0100 .... = Version: 4
|
||||
* .... 0101 = Header Length: 20 bytes (5)
|
||||
* Differentiated Services Field: 0x00 (DSCP: CS0, ECN: Not-ECT)
|
||||
* 0000 00.. = Differentiated Services Codepoint: Default (0)
|
||||
* .... ..00 = Explicit Congestion Notification: Not ECN-Capable Transport (0)
|
||||
* Total Length: 44
|
||||
* Identification: 0xffff (65535)
|
||||
* 000. .... = Flags: 0x0
|
||||
* 0... .... = Reserved bit: Not set
|
||||
* .0.. .... = Don't fragment: Not set
|
||||
* ..0. .... = More fragments: Not set
|
||||
* ...0 0000 0000 0011 = Fragment Offset: 24
|
||||
* Time to Live: 127
|
||||
* Protocol: TCP (6)
|
||||
* Header Checksum: 0x6d88 [correct]
|
||||
* [Header checksum status: Good]
|
||||
* [Calculated Checksum: 0x6d88]
|
||||
* Source Address: 192.168.36.103
|
||||
* Destination Address: 192.168.40.137
|
||||
* [2 IPv4 Fragments (48 bytes): #4(24), #5(24)]
|
||||
* [Frame: 4, payload: 0-23 (24 bytes)]
|
||||
* [Frame: 5, payload: 24-47 (24 bytes)]
|
||||
* [Fragment count: 2]
|
||||
* [Reassembled IPv4 length: 48]
|
||||
* [Reassembled IPv4 data: f4a5270f9107248703d518e75018ff005e9200003132330af4a5270f9107248b03d518e7…]
|
||||
* Transmission Control Protocol, Src Port: 62629, Dst Port: 9999, Seq: 1, Ack: 1, Len: 28
|
||||
* Source Port: 62629
|
||||
* Destination Port: 9999
|
||||
* [Stream index: 0]
|
||||
* [Conversation completeness: Complete, WITH_DATA (31)]
|
||||
* [TCP Segment Len: 28]
|
||||
* Sequence Number: 1 (relative sequence number)
|
||||
* Sequence Number (raw): 2433164423
|
||||
* [Next Sequence Number: 29 (relative sequence number)]
|
||||
* Acknowledgment Number: 1 (relative ack number)
|
||||
* Acknowledgment number (raw): 64297191
|
||||
* 0101 .... = Header Length: 20 bytes (5)
|
||||
* Flags: 0x018 (PSH, ACK)
|
||||
* 000. .... .... = Reserved: Not set
|
||||
* ...0 .... .... = Accurate ECN: Not set
|
||||
* .... 0... .... = Congestion Window Reduced: Not set
|
||||
* .... .0.. .... = ECN-Echo: Not set
|
||||
* .... ..0. .... = Urgent: Not set
|
||||
* .... ...1 .... = Acknowledgment: Set
|
||||
* .... .... 1... = Push: Set
|
||||
* .... .... .0.. = Reset: Not set
|
||||
* .... .... ..0. = Syn: Not set
|
||||
* .... .... ...0 = Fin: Not set
|
||||
* [TCP Flags: ·······AP···]
|
||||
* Window: 65280
|
||||
* [Calculated window size: 65280]
|
||||
* [Window size scaling factor: -2 (no window scaling used)]
|
||||
* Checksum: 0x5e92 [correct]
|
||||
* [Checksum Status: Good]
|
||||
* [Calculated Checksum: 0x5e92]
|
||||
* Urgent Pointer: 0
|
||||
* [Timestamps]
|
||||
* [Time since first frame in this TCP stream: 6.525912000 seconds]
|
||||
* [Time since previous frame in this TCP stream: 6.525083000 seconds]
|
||||
* [SEQ/ACK analysis]
|
||||
* [iRTT: 0.000829000 seconds]
|
||||
* [Bytes in flight: 28]
|
||||
* [Bytes sent since last PSH flag: 28]
|
||||
* TCP payload (28 bytes)
|
||||
* Data (28 bytes)
|
||||
* Data: 3132330af4a5270f9107248b03d518e75018ff00301600006162630a
|
||||
* [Length: 28]
|
||||
*/
|
||||
|
||||
unsigned char frag2[] = {
|
||||
/* ETH */
|
||||
0x00, 0x22, 0x46, 0x2f, 0x35, 0xb8, 0xe8, 0x1c, 0xba, 0xcc, 0x87, 0x22, 0x08, 0x00,
|
||||
/* IP */
|
||||
0x45, 0x00, // version & hdr len & tos
|
||||
0x00, 0x2c, // total length
|
||||
0xff, 0xff, // ip id
|
||||
0x00, 0x03, // flags & frag offset
|
||||
0x7f, 0x06, // ttl & protocol
|
||||
0x6d, 0x88, // checksum
|
||||
0xc0, 0xa8, 0x24, 0x67, // src addr
|
||||
0xc0, 0xa8, 0x28, 0x89, // dst addr
|
||||
/* DATA */
|
||||
0xf4, 0xa5, 0x27, 0x0f, 0x91, 0x07, 0x24, 0x8b, 0x03, 0xd5, 0x18, 0xe7, 0x50, 0x18, 0xff, 0x00, 0x30, 0x16, 0x00, 0x00, 0x61, 0x62, 0x63, 0x0a,
|
||||
/* Padding */
|
||||
0x00, 0x00};
|
||||
|
||||
unsigned char expect[] = {
|
||||
/* ETH */
|
||||
0x00, 0x22, 0x46, 0x2f, 0x35, 0xb8, 0xe8, 0x1c, 0xba, 0xcc, 0x87, 0x22, 0x08, 0x00,
|
||||
/* IP */
|
||||
0x45, 0x00, // version & hdr len & tos
|
||||
0x00, 0x44, // total length --------- need update ---------
|
||||
0xff, 0xff, // ip id
|
||||
0x00, 0x00, // flags & frag offset --------- need update ---------
|
||||
0x7f, 0x06, // ttl & protocol
|
||||
0x6d, 0x73, // checksum --------- need update ---------
|
||||
0xc0, 0xa8, 0x24, 0x67, // src addr
|
||||
0xc0, 0xa8, 0x28, 0x89, // dst addr
|
||||
/* TCP */
|
||||
0xf4, 0xa5, // src port
|
||||
0x27, 0x0f, // dst port
|
||||
0x91, 0x07, 0x24, 0x87, // seq
|
||||
0x03, 0xd5, 0x18, 0xe7, // ack
|
||||
0x50, 0x18, // data offset & flags
|
||||
0xff, 0x00, // windows
|
||||
0x5e, 0x92, // checksum
|
||||
0x00, 0x00, // urgent pointer
|
||||
/* DATA */
|
||||
0x31, 0x32, 0x33, 0x0a, // data from frag1
|
||||
0xf4, 0xa5, 0x27, 0x0f, 0x91, 0x07, 0x24, 0x8b, 0x03, 0xd5, 0x18, 0xe7, 0x50, 0x18, 0xff, 0x00, 0x30, 0x16, 0x00, 0x00, 0x61, 0x62, 0x63, 0x0a // data from frag2
|
||||
};
|
||||
|
||||
TEST(IPV4_REASSEMBLE, PADDING)
|
||||
{
|
||||
struct packet pkt;
|
||||
struct packet *new_pkt;
|
||||
const struct layer_record *layer;
|
||||
struct ip_reassemble_manager *mgr;
|
||||
|
||||
timestamp_update();
|
||||
|
||||
mgr = ip_reassemble_manager_create(&config);
|
||||
EXPECT_TRUE(mgr != NULL);
|
||||
|
||||
// frag1
|
||||
packet_parse(&pkt, (const char *)frag1, sizeof(frag1));
|
||||
new_pkt = ip_reassemble_packet(mgr, &pkt);
|
||||
EXPECT_TRUE(new_pkt == NULL);
|
||||
|
||||
// frag2
|
||||
packet_parse(&pkt, (const char *)frag2, sizeof(frag2));
|
||||
new_pkt = ip_reassemble_packet(mgr, &pkt);
|
||||
EXPECT_TRUE(new_pkt);
|
||||
|
||||
// check packet
|
||||
packet_print(new_pkt);
|
||||
EXPECT_TRUE(new_pkt->data_len == 14 /* ETH */ + 20 /* IPv4 */ + 20 /* TCP */ + 28 /* DATA */);
|
||||
EXPECT_TRUE(new_pkt->data_len == sizeof(expect));
|
||||
EXPECT_TRUE(memcmp(new_pkt->data_ptr, expect, new_pkt->data_len) == 0);
|
||||
|
||||
// check IPv4
|
||||
layer = packet_get_innermost_layer(new_pkt, LAYER_TYPE_IPV4);
|
||||
EXPECT_TRUE(layer);
|
||||
struct ip *hdr = (struct ip *)layer->hdr_ptr;
|
||||
EXPECT_TRUE(ipv4_hdr_get_version(hdr) == 4);
|
||||
EXPECT_TRUE(ipv4_hdr_get_hdr_len(hdr) == 20 /* IPv4 */);
|
||||
EXPECT_TRUE(ipv4_hdr_get_tos(hdr) == 0);
|
||||
EXPECT_TRUE(ipv4_hdr_get_total_len(hdr) == 20 /* IPv4 */ + 20 /* TCP */ + 28 /* DATA */);
|
||||
EXPECT_TRUE(ipv4_hdr_get_ipid(hdr) == 0xffff);
|
||||
EXPECT_TRUE(ipv4_hdr_get_flags(hdr) == 0x0);
|
||||
EXPECT_TRUE(ipv4_hdr_get_frag_offset(hdr) == 0);
|
||||
EXPECT_TRUE(ipv4_hdr_get_ttl(hdr) == 127);
|
||||
EXPECT_TRUE(ipv4_hdr_get_proto(hdr) == 6);
|
||||
EXPECT_TRUE(ipv4_hdr_get_checksum(hdr) == 0x6d73); // NOTE this is correct checksum
|
||||
EXPECT_TRUE(ipv4_hdr_get_src_addr(hdr) == 0xc0a82467);
|
||||
EXPECT_TRUE(ipv4_hdr_get_dst_addr(hdr) == 0xc0a82889);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_len(hdr) == 0);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == NULL);
|
||||
|
||||
// check TCP
|
||||
layer = packet_get_innermost_layer(new_pkt, LAYER_TYPE_TCP);
|
||||
EXPECT_TRUE(layer);
|
||||
struct tcphdr *tcp_hdr = (struct tcphdr *)layer->hdr_ptr;
|
||||
EXPECT_TRUE(tcp_hdr_get_src_port(tcp_hdr) == 62629);
|
||||
EXPECT_TRUE(tcp_hdr_get_dst_port(tcp_hdr) == 9999);
|
||||
EXPECT_TRUE(tcp_hdr_get_seq(tcp_hdr) == 2433164423);
|
||||
EXPECT_TRUE(tcp_hdr_get_ack(tcp_hdr) == 64297191);
|
||||
EXPECT_TRUE(tcp_hdr_get_hdr_len(tcp_hdr) == 20);
|
||||
EXPECT_TRUE(tcp_hdr_get_flags(tcp_hdr) == 0x018);
|
||||
EXPECT_TRUE(tcp_hdr_get_window(tcp_hdr) == 65280);
|
||||
EXPECT_TRUE(tcp_hdr_get_checksum(tcp_hdr) == 0x5e92);
|
||||
EXPECT_TRUE(tcp_hdr_get_urg_ptr(tcp_hdr) == 0);
|
||||
EXPECT_TRUE(tcp_hdr_get_opt_len(tcp_hdr) == 0);
|
||||
EXPECT_TRUE(tcp_hdr_get_opt_data(tcp_hdr) == NULL);
|
||||
|
||||
// free packet
|
||||
packet_free(new_pkt);
|
||||
|
||||
ip_reassemble_manager_destory(mgr);
|
||||
}
|
||||
|
||||
TEST(IPV4_REASSEMBLE, EXPIRE)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
TEST(IPV4_REASSEMBLE, FULL)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
TEST(IPV4_REASSEMBLE, HOLE)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
TEST(IPV4_REASSEMBLE, NESTED)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
::testing::InitGoogleTest(&argc, argv);
|
||||
return RUN_ALL_TESTS();
|
||||
}
|
||||
715
src/ip_reassemble/test/gtest_ipv6_reassemble.cpp
Normal file
715
src/ip_reassemble/test/gtest_ipv6_reassemble.cpp
Normal file
@@ -0,0 +1,715 @@
|
||||
#include <gtest/gtest.h>
|
||||
|
||||
#include "timestamp.h"
|
||||
#include "udp_utils.h"
|
||||
#include "ipv6_utils.h"
|
||||
#include "packet_helpers.h"
|
||||
#include "ip_reassemble.h"
|
||||
|
||||
struct ip_reassemble_config config = {
|
||||
.enable = true,
|
||||
.timeout = 1000,
|
||||
.bucket_entries = 16,
|
||||
.bucket_num = 8,
|
||||
};
|
||||
|
||||
/*
|
||||
* Frame 3: 1510 bytes on wire (12080 bits), 1510 bytes captured (12080 bits)
|
||||
* Ethernet II, Src: Apple_c0:61:b6 (68:5b:35:c0:61:b6), Dst: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Destination: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Address: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Source: Apple_c0:61:b6 (68:5b:35:c0:61:b6)
|
||||
* Address: Apple_c0:61:b6 (68:5b:35:c0:61:b6)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Type: IPv6 (0x86dd)
|
||||
* Internet Protocol Version 6, Src: 2607:f010:3f9::1001, Dst: 2607:f010:3f9::11:0
|
||||
* 0110 .... = Version: 6
|
||||
* .... 0000 0000 .... .... .... .... .... = Traffic Class: 0x00 (DSCP: CS0, ECN: Not-ECT)
|
||||
* .... 0000 00.. .... .... .... .... .... = Differentiated Services Codepoint: Default (0)
|
||||
* .... .... ..00 .... .... .... .... .... = Explicit Congestion Notification: Not ECN-Capable Transport (0)
|
||||
* .... 0010 0001 0010 1000 1001 = Flow Label: 0x21289
|
||||
* Payload Length: 1456
|
||||
* Next Header: Fragment Header for IPv6 (44)
|
||||
* Hop Limit: 64
|
||||
* Source Address: 2607:f010:3f9::1001
|
||||
* Destination Address: 2607:f010:3f9::11:0
|
||||
* Fragment Header for IPv6
|
||||
* Next header: UDP (17)
|
||||
* Reserved octet: 0x00
|
||||
* 0000 0000 0000 0... = Offset: 0 (0 bytes)
|
||||
* .... .... .... .00. = Reserved bits: 0
|
||||
* .... .... .... ...1 = More Fragments: Yes
|
||||
* Identification: 0xf88eb466
|
||||
* [Reassembled IPv6 in frame: 6]
|
||||
* Data (1448 bytes)
|
||||
* Data: 18db18db150b791606fd14ff072908076578616d706c6508077465737441707008013108…
|
||||
* [Length: 1448]
|
||||
*/
|
||||
|
||||
unsigned char frag1[] = {
|
||||
0x00, 0x1d, 0x09, 0x94, 0x65, 0x38, 0x68, 0x5b, 0x35, 0xc0, 0x61, 0xb6, 0x86, 0xdd, 0x60, 0x02, 0x12, 0x89, 0x05, 0xb0, 0x2c, 0x40, 0x26, 0x07, 0xf0, 0x10,
|
||||
0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, 0x26, 0x07, 0xf0, 0x10, 0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
|
||||
0x00, 0x00, 0x11, 0x00, 0x00, 0x01, 0xf8, 0x8e, 0xb4, 0x66, 0x18, 0xdb, 0x18, 0xdb, 0x15, 0x0b, 0x79, 0x16, 0x06, 0xfd, 0x14, 0xff, 0x07, 0x29, 0x08, 0x07,
|
||||
0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x08, 0x07, 0x74, 0x65, 0x73, 0x74, 0x41, 0x70, 0x70, 0x08, 0x01, 0x31, 0x08, 0x07, 0x74, 0x65, 0x73, 0x74, 0x41,
|
||||
0x70, 0x70, 0x08, 0x09, 0xfd, 0x00, 0x00, 0x01, 0x4f, 0x23, 0x68, 0xc7, 0x8e, 0x14, 0x04, 0x19, 0x02, 0x27, 0x10, 0x15, 0xfd, 0x13, 0x88, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
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0x68, 0x68};
|
||||
|
||||
/*
|
||||
* Frame 4: 1510 bytes on wire (12080 bits), 1510 bytes captured (12080 bits)
|
||||
* Ethernet II, Src: Apple_c0:61:b6 (68:5b:35:c0:61:b6), Dst: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Destination: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Address: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Source: Apple_c0:61:b6 (68:5b:35:c0:61:b6)
|
||||
* Address: Apple_c0:61:b6 (68:5b:35:c0:61:b6)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Type: IPv6 (0x86dd)
|
||||
* Internet Protocol Version 6, Src: 2607:f010:3f9::1001, Dst: 2607:f010:3f9::11:0
|
||||
* 0110 .... = Version: 6
|
||||
* .... 0000 0000 .... .... .... .... .... = Traffic Class: 0x00 (DSCP: CS0, ECN: Not-ECT)
|
||||
* .... 0000 00.. .... .... .... .... .... = Differentiated Services Codepoint: Default (0)
|
||||
* .... .... ..00 .... .... .... .... .... = Explicit Congestion Notification: Not ECN-Capable Transport (0)
|
||||
* .... 0010 0001 0010 1000 1001 = Flow Label: 0x21289
|
||||
* Payload Length: 1456
|
||||
* Next Header: Fragment Header for IPv6 (44)
|
||||
* Hop Limit: 64
|
||||
* Source Address: 2607:f010:3f9::1001
|
||||
* Destination Address: 2607:f010:3f9::11:0
|
||||
* Fragment Header for IPv6
|
||||
* Next header: UDP (17)
|
||||
* Reserved octet: 0x00
|
||||
* 0000 0101 1010 1... = Offset: 181 (1448 bytes)
|
||||
* .... .... .... .00. = Reserved bits: 0
|
||||
* .... .... .... ...1 = More Fragments: Yes
|
||||
* Identification: 0xf88eb466
|
||||
* [Reassembled IPv6 in frame: 6]
|
||||
* Data (1448 bytes)
|
||||
* Data: 686868686868686868686868686868686868686868686868686868686868686868686868…
|
||||
* [Length: 1448]
|
||||
*/
|
||||
|
||||
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|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68};
|
||||
|
||||
/*
|
||||
* Frame 5: 1510 bytes on wire (12080 bits), 1510 bytes captured (12080 bits)
|
||||
* Ethernet II, Src: Apple_c0:61:b6 (68:5b:35:c0:61:b6), Dst: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Destination: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Address: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Source: Apple_c0:61:b6 (68:5b:35:c0:61:b6)
|
||||
* Address: Apple_c0:61:b6 (68:5b:35:c0:61:b6)
|
||||
* .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
|
||||
* .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
|
||||
* Type: IPv6 (0x86dd)
|
||||
* Internet Protocol Version 6, Src: 2607:f010:3f9::1001, Dst: 2607:f010:3f9::11:0
|
||||
* 0110 .... = Version: 6
|
||||
* .... 0000 0000 .... .... .... .... .... = Traffic Class: 0x00 (DSCP: CS0, ECN: Not-ECT)
|
||||
* .... 0000 00.. .... .... .... .... .... = Differentiated Services Codepoint: Default (0)
|
||||
* .... .... ..00 .... .... .... .... .... = Explicit Congestion Notification: Not ECN-Capable Transport (0)
|
||||
* .... 0010 0001 0010 1000 1001 = Flow Label: 0x21289
|
||||
* Payload Length: 1456
|
||||
* Next Header: Fragment Header for IPv6 (44)
|
||||
* Hop Limit: 64
|
||||
* Source Address: 2607:f010:3f9::1001
|
||||
* Destination Address: 2607:f010:3f9::11:0
|
||||
* Fragment Header for IPv6
|
||||
* Next header: UDP (17)
|
||||
* Reserved octet: 0x00
|
||||
* 0000 1011 0101 0... = Offset: 362 (2896 bytes)
|
||||
* .... .... .... .00. = Reserved bits: 0
|
||||
* .... .... .... ...1 = More Fragments: Yes
|
||||
* Identification: 0xf88eb466
|
||||
* [Reassembled IPv6 in frame: 6]
|
||||
* Data (1448 bytes)
|
||||
* Data: 686868686868686868686868686868686868686868686868686868686868686868686868…
|
||||
* [Length: 1448]
|
||||
*/
|
||||
|
||||
unsigned char frag3[] = {
|
||||
0x00, 0x1d, 0x09, 0x94, 0x65, 0x38, 0x68, 0x5b, 0x35, 0xc0, 0x61, 0xb6, 0x86, 0xdd, 0x60, 0x02, 0x12, 0x89, 0x05, 0xb0, 0x2c, 0x40, 0x26, 0x07, 0xf0, 0x10,
|
||||
0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, 0x26, 0x07, 0xf0, 0x10, 0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
|
||||
0x00, 0x00, 0x11, 0x00, 0x0b, 0x51, 0xf8, 0x8e, 0xb4, 0x66, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68};
|
||||
|
||||
/*
|
||||
* Frame 6: 1105 bytes on wire (8840 bits), 1105 bytes captured (8840 bits)
|
||||
* Ethernet II, Src: Apple_c0:61:b6 (68:5b:35:c0:61:b6), Dst: Dell_94:65:38 (00:1d:09:94:65:38)
|
||||
* Internet Protocol Version 6, Src: 2607:f010:3f9::1001, Dst: 2607:f010:3f9::11:0
|
||||
* 0110 .... = Version: 6
|
||||
* .... 0000 0000 .... .... .... .... .... = Traffic Class: 0x00 (DSCP: CS0, ECN: Not-ECT)
|
||||
* .... 0000 00.. .... .... .... .... .... = Differentiated Services Codepoint: Default (0)
|
||||
* .... .... ..00 .... .... .... .... .... = Explicit Congestion Notification: Not ECN-Capable Transport (0)
|
||||
* .... 0010 0001 0010 1000 1001 = Flow Label: 0x21289
|
||||
* Payload Length: 1051
|
||||
* Next Header: Fragment Header for IPv6 (44)
|
||||
* Hop Limit: 64
|
||||
* Source Address: 2607:f010:3f9::1001
|
||||
* Destination Address: 2607:f010:3f9::11:0
|
||||
* Fragment Header for IPv6
|
||||
* Next header: UDP (17)
|
||||
* Reserved octet: 0x00
|
||||
* 0001 0000 1111 1... = Offset: 543 (4344 bytes)
|
||||
* .... .... .... .00. = Reserved bits: 0
|
||||
* .... .... .... ...0 = More Fragments: No
|
||||
* Identification: 0xf88eb466
|
||||
* [4 IPv6 Fragments (5387 bytes): #3(1448), #4(1448), #5(1448), #6(1043)]
|
||||
* [Frame: 3, payload: 0-1447 (1448 bytes)]
|
||||
* [Frame: 4, payload: 1448-2895 (1448 bytes)]
|
||||
* [Frame: 5, payload: 2896-4343 (1448 bytes)]
|
||||
* [Frame: 6, payload: 4344-5386 (1043 bytes)]
|
||||
* [Fragment count: 4]
|
||||
* [Reassembled IPv6 length: 5387]
|
||||
* [Reassembled IPv6 data: 18db18db150b791606fd14ff072908076578616d706c6508077465737441707008013108…]
|
||||
* User Datagram Protocol, Src Port: 6363, Dst Port: 6363
|
||||
* Source Port: 6363
|
||||
* Destination Port: 6363
|
||||
* Length: 5387
|
||||
* Checksum: 0x7916 [correct]
|
||||
* [Calculated Checksum: 0x7916]
|
||||
* [Checksum Status: Good]
|
||||
* [Stream index: 0]
|
||||
* [Timestamps]
|
||||
* [Time since first frame: 0.257001000 seconds]
|
||||
* [Time since previous frame: 0.019796000 seconds]
|
||||
* UDP payload (5379 bytes)
|
||||
* Data (5379 bytes)
|
||||
* Data: 06fd14ff072908076578616d706c65080774657374417070080131080774657374417070…
|
||||
* [Length: 5379]
|
||||
*/
|
||||
|
||||
unsigned char frag4[] = {
|
||||
0x00, 0x1d, 0x09, 0x94, 0x65, 0x38, 0x68, 0x5b, 0x35, 0xc0, 0x61, 0xb6, 0x86, 0xdd, 0x60, 0x02, 0x12, 0x89, 0x04, 0x1b, 0x2c, 0x40, 0x26, 0x07, 0xf0, 0x10,
|
||||
0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, 0x26, 0x07, 0xf0, 0x10, 0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11,
|
||||
0x00, 0x00, 0x11, 0x00, 0x10, 0xf8, 0xf8, 0x8e, 0xb4, 0x66, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x16, 0x3c, 0x1b, 0x01, 0x01, 0x1c, 0x37, 0x07, 0x35, 0x08, 0x0c, 0x74, 0x6d, 0x70, 0x2d, 0x69, 0x64, 0x65, 0x6e, 0x74, 0x69, 0x74, 0x79,
|
||||
0x08, 0x04, 0x12, 0xc2, 0x99, 0x9e, 0x08, 0x03, 0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31, 0x34, 0x33, 0x33, 0x39, 0x38, 0x30, 0x38, 0x37,
|
||||
0x36, 0x33, 0x30, 0x36, 0x08, 0x07, 0x49, 0x44, 0x2d, 0x43, 0x45, 0x52, 0x54, 0x17, 0xfd, 0x01, 0x00, 0x30, 0x6f, 0x6b, 0xab, 0x96, 0x61, 0x9b, 0x71, 0x2a,
|
||||
0xf4, 0xa0, 0xde, 0x35, 0x84, 0xed, 0x89, 0xb6, 0xe7, 0x09, 0x3e, 0xe9, 0x5e, 0xb9, 0xcd, 0x1f, 0x66, 0x37, 0x5f, 0xfa, 0xbc, 0x52, 0xee, 0x40, 0xf6, 0xd1,
|
||||
0xc5, 0x60, 0xff, 0x78, 0xf1, 0x51, 0xc9, 0x1b, 0xc9, 0x9c, 0xd0, 0xb0, 0xac, 0x0f, 0x42, 0x2e, 0x1c, 0xc1, 0xea, 0x5b, 0x50, 0xff, 0x50, 0x99, 0x60, 0x6d,
|
||||
0x02, 0xed, 0xec, 0x2c, 0xd6, 0x97, 0x1b, 0x9a, 0xf7, 0x17, 0xde, 0xef, 0x58, 0x6b, 0xc0, 0x63, 0x6d, 0x64, 0x12, 0x77, 0xb2, 0x34, 0xbe, 0x05, 0x79, 0x8a,
|
||||
0x59, 0x2c, 0x25, 0x94, 0x52, 0x8e, 0x1e, 0xd4, 0xdc, 0x12, 0xe7, 0x60, 0x66, 0xc9, 0x09, 0xe5, 0x9b, 0x53, 0xf2, 0xed, 0x37, 0x17, 0x91, 0x90, 0x8d, 0xe6,
|
||||
0x8a, 0x47, 0xcd, 0xcc, 0x47, 0xab, 0xd2, 0xbe, 0xcb, 0xa8, 0x3f, 0x88, 0x7b, 0xcc, 0x58, 0x80, 0xdd, 0xb2, 0x08, 0x30, 0x79, 0x95, 0xb3, 0x8b, 0xd0, 0x5b,
|
||||
0xc5, 0x13, 0x8c, 0x11, 0xab, 0x2b, 0x91, 0xac, 0x3c, 0x55, 0xa9, 0x52, 0x02, 0x12, 0xf1, 0xb8, 0x2f, 0xca, 0xea, 0xd0, 0x70, 0x56, 0x3c, 0x2a, 0x36, 0x6e,
|
||||
0xd2, 0x57, 0x0c, 0xe6, 0x9b, 0xbc, 0xc8, 0x5b, 0x1c, 0x39, 0xed, 0x9b, 0x7c, 0xfa, 0xa7, 0x2b, 0x66, 0x17, 0x10, 0x40, 0x9e, 0x0f, 0xe0, 0x90, 0xd1, 0x61,
|
||||
0xfd, 0xbb, 0xc8, 0x6d, 0x1b, 0xcf, 0xec, 0x81, 0xf7, 0xde, 0x24, 0xc3, 0x12, 0xac, 0x39, 0xfd, 0xb3, 0xa8, 0x57, 0x35, 0xc6, 0xfb, 0x1a, 0x15, 0x52, 0x23,
|
||||
0x29, 0xa1, 0x25, 0xca, 0x66, 0x98, 0x05, 0xa6, 0x7b, 0x0d, 0x49, 0xe1, 0x76, 0x34, 0x07, 0xf7, 0x9e, 0xe5, 0xb7, 0x66, 0x39, 0xb1, 0xb0, 0xa0, 0x1a, 0x44,
|
||||
0x90, 0xce, 0x07, 0x03, 0xf2, 0x1b, 0x0e, 0xc6, 0x17, 0xed, 0xd8, 0x4f, 0x4f};
|
||||
|
||||
unsigned char expect[] = {
|
||||
// ETH
|
||||
0x00, 0x1d, 0x09, 0x94, 0x65, 0x38, 0x68, 0x5b, 0x35, 0xc0, 0x61, 0xb6, 0x86, 0xdd,
|
||||
// IPv6
|
||||
0x60, 0x02, 0x12, 0x89, // version & traffic class & flow label
|
||||
0x15, 0x0b, // payload length
|
||||
0x11, // next header
|
||||
0x40, // hop limit
|
||||
0x26, 0x07, 0xf0, 0x10, 0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, // src addr
|
||||
0x26, 0x07, 0xf0, 0x10, 0x03, 0xf9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x11, 0x00, 0x00, // dst addr
|
||||
// IPv6 Payload
|
||||
0x18, 0xdb, 0x18, 0xdb, 0x15, 0x0b, 0x79, 0x16, 0x06, 0xfd, 0x14, 0xff, 0x07, 0x29, 0x08, 0x07, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x08, 0x07, 0x74,
|
||||
0x65, 0x73, 0x74, 0x41, 0x70, 0x70, 0x08, 0x01, 0x31, 0x08, 0x07, 0x74, 0x65, 0x73, 0x74, 0x41, 0x70, 0x70, 0x08, 0x09, 0xfd, 0x00, 0x00, 0x01, 0x4f, 0x23,
|
||||
0x68, 0xc7, 0x8e, 0x14, 0x04, 0x19, 0x02, 0x27, 0x10, 0x15, 0xfd, 0x13, 0x88, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
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|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68,
|
||||
0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x68, 0x16, 0x3c, 0x1b, 0x01, 0x01,
|
||||
0x1c, 0x37, 0x07, 0x35, 0x08, 0x0c, 0x74, 0x6d, 0x70, 0x2d, 0x69, 0x64, 0x65, 0x6e, 0x74, 0x69, 0x74, 0x79, 0x08, 0x04, 0x12, 0xc2, 0x99, 0x9e, 0x08, 0x03,
|
||||
0x4b, 0x45, 0x59, 0x08, 0x11, 0x6b, 0x73, 0x6b, 0x2d, 0x31, 0x34, 0x33, 0x33, 0x39, 0x38, 0x30, 0x38, 0x37, 0x36, 0x33, 0x30, 0x36, 0x08, 0x07, 0x49, 0x44,
|
||||
0x2d, 0x43, 0x45, 0x52, 0x54, 0x17, 0xfd, 0x01, 0x00, 0x30, 0x6f, 0x6b, 0xab, 0x96, 0x61, 0x9b, 0x71, 0x2a, 0xf4, 0xa0, 0xde, 0x35, 0x84, 0xed, 0x89, 0xb6,
|
||||
0xe7, 0x09, 0x3e, 0xe9, 0x5e, 0xb9, 0xcd, 0x1f, 0x66, 0x37, 0x5f, 0xfa, 0xbc, 0x52, 0xee, 0x40, 0xf6, 0xd1, 0xc5, 0x60, 0xff, 0x78, 0xf1, 0x51, 0xc9, 0x1b,
|
||||
0xc9, 0x9c, 0xd0, 0xb0, 0xac, 0x0f, 0x42, 0x2e, 0x1c, 0xc1, 0xea, 0x5b, 0x50, 0xff, 0x50, 0x99, 0x60, 0x6d, 0x02, 0xed, 0xec, 0x2c, 0xd6, 0x97, 0x1b, 0x9a,
|
||||
0xf7, 0x17, 0xde, 0xef, 0x58, 0x6b, 0xc0, 0x63, 0x6d, 0x64, 0x12, 0x77, 0xb2, 0x34, 0xbe, 0x05, 0x79, 0x8a, 0x59, 0x2c, 0x25, 0x94, 0x52, 0x8e, 0x1e, 0xd4,
|
||||
0xdc, 0x12, 0xe7, 0x60, 0x66, 0xc9, 0x09, 0xe5, 0x9b, 0x53, 0xf2, 0xed, 0x37, 0x17, 0x91, 0x90, 0x8d, 0xe6, 0x8a, 0x47, 0xcd, 0xcc, 0x47, 0xab, 0xd2, 0xbe,
|
||||
0xcb, 0xa8, 0x3f, 0x88, 0x7b, 0xcc, 0x58, 0x80, 0xdd, 0xb2, 0x08, 0x30, 0x79, 0x95, 0xb3, 0x8b, 0xd0, 0x5b, 0xc5, 0x13, 0x8c, 0x11, 0xab, 0x2b, 0x91, 0xac,
|
||||
0x3c, 0x55, 0xa9, 0x52, 0x02, 0x12, 0xf1, 0xb8, 0x2f, 0xca, 0xea, 0xd0, 0x70, 0x56, 0x3c, 0x2a, 0x36, 0x6e, 0xd2, 0x57, 0x0c, 0xe6, 0x9b, 0xbc, 0xc8, 0x5b,
|
||||
0x1c, 0x39, 0xed, 0x9b, 0x7c, 0xfa, 0xa7, 0x2b, 0x66, 0x17, 0x10, 0x40, 0x9e, 0x0f, 0xe0, 0x90, 0xd1, 0x61, 0xfd, 0xbb, 0xc8, 0x6d, 0x1b, 0xcf, 0xec, 0x81,
|
||||
0xf7, 0xde, 0x24, 0xc3, 0x12, 0xac, 0x39, 0xfd, 0xb3, 0xa8, 0x57, 0x35, 0xc6, 0xfb, 0x1a, 0x15, 0x52, 0x23, 0x29, 0xa1, 0x25, 0xca, 0x66, 0x98, 0x05, 0xa6,
|
||||
0x7b, 0x0d, 0x49, 0xe1, 0x76, 0x34, 0x07, 0xf7, 0x9e, 0xe5, 0xb7, 0x66, 0x39, 0xb1, 0xb0, 0xa0, 0x1a, 0x44, 0x90, 0xce, 0x07, 0x03, 0xf2, 0x1b, 0x0e, 0xc6,
|
||||
0x17, 0xed, 0xd8, 0x4f, 0x4f};
|
||||
|
||||
TEST(IPV6_REASSEMBLE, NORMAL)
|
||||
{
|
||||
struct packet pkt;
|
||||
struct packet *new_pkt;
|
||||
const struct layer_record *layer;
|
||||
struct ip_reassemble_manager *mgr;
|
||||
|
||||
timestamp_update();
|
||||
|
||||
mgr = ip_reassemble_manager_create(&config);
|
||||
EXPECT_TRUE(mgr != NULL);
|
||||
|
||||
// frag1
|
||||
packet_parse(&pkt, (const char *)frag1, sizeof(frag1));
|
||||
new_pkt = ip_reassemble_packet(mgr, &pkt);
|
||||
EXPECT_TRUE(new_pkt == NULL);
|
||||
|
||||
// frag2
|
||||
packet_parse(&pkt, (const char *)frag2, sizeof(frag2));
|
||||
new_pkt = ip_reassemble_packet(mgr, &pkt);
|
||||
EXPECT_TRUE(new_pkt == NULL);
|
||||
|
||||
// frag3
|
||||
packet_parse(&pkt, (const char *)frag3, sizeof(frag3));
|
||||
new_pkt = ip_reassemble_packet(mgr, &pkt);
|
||||
EXPECT_TRUE(new_pkt == NULL);
|
||||
|
||||
// frag4
|
||||
packet_parse(&pkt, (const char *)frag4, sizeof(frag4));
|
||||
new_pkt = ip_reassemble_packet(mgr, &pkt);
|
||||
EXPECT_TRUE(new_pkt);
|
||||
|
||||
// check packet
|
||||
packet_print(new_pkt);
|
||||
EXPECT_TRUE(new_pkt->data_len == 14 /* ETH */ + 40 /* IPv6 */ + 8 /* UDP */ + 5379 /* DATA */);
|
||||
EXPECT_TRUE(new_pkt->data_len == sizeof(expect));
|
||||
EXPECT_TRUE(memcmp(new_pkt->data_ptr, expect, new_pkt->data_len) == 0);
|
||||
|
||||
// check IPv6
|
||||
layer = packet_get_innermost_layer(new_pkt, LAYER_TYPE_IPV6);
|
||||
EXPECT_TRUE(layer);
|
||||
struct ip6_hdr *hdr = (struct ip6_hdr *)layer->hdr_ptr;
|
||||
EXPECT_TRUE(ipv6_hdr_get_version(hdr) == 6);
|
||||
EXPECT_TRUE(ipv6_hdr_get_traffic_class(hdr) == 0);
|
||||
EXPECT_TRUE(ipv6_hdr_get_flow_label(hdr) == 0x21289);
|
||||
EXPECT_TRUE(ipv6_hdr_get_payload_len(hdr) == 5387);
|
||||
EXPECT_TRUE(ipv6_hdr_get_next_header(hdr) == 17); // UDP
|
||||
EXPECT_TRUE(ipv6_hdr_get_hop_limit(hdr) == 64);
|
||||
char src_str[INET6_ADDRSTRLEN];
|
||||
char dst_str[INET6_ADDRSTRLEN];
|
||||
struct in6_addr src_addr = ipv6_hdr_get_src_in6_addr(hdr);
|
||||
struct in6_addr dst_addr = ipv6_hdr_get_dst_in6_addr(hdr);
|
||||
inet_ntop(AF_INET6, &src_addr, src_str, INET6_ADDRSTRLEN);
|
||||
inet_ntop(AF_INET6, &dst_addr, dst_str, INET6_ADDRSTRLEN);
|
||||
EXPECT_TRUE(strcmp(src_str, "2607:f010:3f9::1001") == 0);
|
||||
EXPECT_TRUE(strcmp(dst_str, "2607:f010:3f9::11:0") == 0);
|
||||
EXPECT_TRUE(ipv6_hdr_get_frag_ext(hdr) == NULL);
|
||||
|
||||
// check UDP
|
||||
layer = packet_get_innermost_layer(new_pkt, LAYER_TYPE_UDP);
|
||||
EXPECT_TRUE(layer);
|
||||
struct udphdr *udp_hdr = (struct udphdr *)layer->hdr_ptr;
|
||||
EXPECT_TRUE(udp_hdr_get_src_port(udp_hdr) == 6363);
|
||||
EXPECT_TRUE(udp_hdr_get_dst_port(udp_hdr) == 6363);
|
||||
EXPECT_TRUE(udp_hdr_get_total_len(udp_hdr) == 5387);
|
||||
EXPECT_TRUE(udp_hdr_get_checksum(udp_hdr) == 0x7916);
|
||||
|
||||
// free packet
|
||||
packet_free(new_pkt);
|
||||
|
||||
ip_reassemble_manager_destory(mgr);
|
||||
}
|
||||
|
||||
TEST(IPV6_REASSEMBLE, EXPIRE)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
TEST(IPV6_REASSEMBLE, FULL)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
TEST(IPV6_REASSEMBLE, HOLE)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
TEST(IPV6_REASSEMBLE, NESTED)
|
||||
{
|
||||
// TODO
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
::testing::InitGoogleTest(&argc, argv);
|
||||
return RUN_ALL_TESTS();
|
||||
}
|
||||
41
src/packet/checksum.h
Normal file
41
src/packet/checksum.h
Normal file
@@ -0,0 +1,41 @@
|
||||
#ifndef _CHECKSUM_H
|
||||
#define _CHECKSUM_H
|
||||
|
||||
#ifdef __cpluscplus
|
||||
extern "C"
|
||||
{
|
||||
#endif
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
// https://datatracker.ietf.org/doc/html/rfc1071
|
||||
static inline uint16_t checksum(char *data, int len)
|
||||
{
|
||||
long sum = 0;
|
||||
uint16_t *addr = (uint16_t *)data;
|
||||
|
||||
while (len > 1)
|
||||
{
|
||||
sum += *addr++;
|
||||
len -= 2;
|
||||
}
|
||||
|
||||
if (len > 0)
|
||||
{
|
||||
sum += *(unsigned char *)addr;
|
||||
}
|
||||
|
||||
// Fold 32-bit sum to 16 bits
|
||||
while (sum >> 16)
|
||||
{
|
||||
sum = (sum & 0xffff) + (sum >> 16);
|
||||
}
|
||||
|
||||
return (uint16_t)(~sum);
|
||||
}
|
||||
|
||||
#ifdef __cpluscplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif
|
||||
@@ -126,6 +126,11 @@ static inline uint8_t ipv4_hdr_get_opt_len(const struct ip *hdr)
|
||||
|
||||
static inline const char *ipv4_hdr_get_opt_data(const struct ip *hdr)
|
||||
{
|
||||
if (ipv4_hdr_get_opt_len(hdr) == 0)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return (const char *)hdr + sizeof(struct ip);
|
||||
}
|
||||
|
||||
|
||||
@@ -35,6 +35,16 @@ extern "C"
|
||||
* + +
|
||||
* | |
|
||||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
*
|
||||
* Fragment Header
|
||||
*
|
||||
* 0 1 2 3
|
||||
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
|
||||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
* | Next Header | Reserved | Fragment Offset |Res|M|
|
||||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
* | Identification |
|
||||
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
||||
*/
|
||||
|
||||
/******************************************************************************
|
||||
@@ -81,6 +91,15 @@ static inline struct in6_addr ipv6_hdr_get_dst_in6_addr(const struct ip6_hdr *hd
|
||||
return hdr->ip6_dst;
|
||||
}
|
||||
|
||||
static inline struct ip6_frag *ipv6_hdr_get_frag_ext(const struct ip6_hdr *hdr)
|
||||
{
|
||||
if (hdr->ip6_nxt != IPPROTO_FRAGMENT)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
return (struct ip6_frag *)((char *)hdr + sizeof(struct ip6_hdr));
|
||||
}
|
||||
|
||||
// TODO IPv6 extension headers
|
||||
|
||||
/******************************************************************************
|
||||
|
||||
@@ -861,12 +861,12 @@ static inline const char *parse_ipv4(struct packet *handler, const char *data, u
|
||||
return data;
|
||||
}
|
||||
struct ip *hdr = (struct ip *)data;
|
||||
uint8_t next_proto = ipv4_get_proto(hdr);
|
||||
uint8_t next_proto = ipv4_hdr_get_proto(hdr);
|
||||
uint16_t hdr_len = ipv4_hdr_get_hdr_len(hdr);
|
||||
SET_LAYER(handler, layer, LAYER_TYPE_IPV4, hdr_len, data, len);
|
||||
|
||||
// ip fragmented
|
||||
if ((ntohs(hdr->ip_off) & IP_MF) || (ntohs(hdr->ip_off) & IP_OFFMASK))
|
||||
if (ipv4_hdr_get_mf_flag(hdr) || ipv4_hdr_get_frag_offset(hdr))
|
||||
{
|
||||
PACKET_LOG_DEBUG("ip is fragmented");
|
||||
handler->frag_layer = layer;
|
||||
@@ -893,7 +893,13 @@ static inline const char *parse_ipv6(struct packet *handler, const char *data, u
|
||||
uint8_t next_proto = ipv6_hdr_get_next_header((const struct ip6_hdr *)data);
|
||||
SET_LAYER(handler, layer, LAYER_TYPE_IPV6, sizeof(struct ip6_hdr), data, len);
|
||||
|
||||
// TODO ipv6 fragment
|
||||
// ipv6 fragment
|
||||
if (next_proto == IPPROTO_FRAGMENT)
|
||||
{
|
||||
PACKET_LOG_DEBUG("ipv6 is fragmented");
|
||||
handler->frag_layer = layer;
|
||||
return layer->pld_ptr;
|
||||
}
|
||||
|
||||
// TESTED
|
||||
return parse_l4(handler, next_proto, layer->pld_ptr, layer->pld_len);
|
||||
@@ -1132,6 +1138,11 @@ void packet_print(const struct packet *handler)
|
||||
i, layer, layer_type_tostring(layer->type), layer->hdr_offset,
|
||||
layer->hdr_ptr, layer->hdr_len, layer->pld_ptr, layer->pld_len);
|
||||
}
|
||||
for (uint16_t i = 0; i < handler->data_len; i++)
|
||||
{
|
||||
printf("0x%02x, ", (uint8_t)handler->data_ptr[i]);
|
||||
}
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
// return 0 : found
|
||||
|
||||
@@ -12,7 +12,8 @@ extern "C"
|
||||
#include <netinet/ip6.h>
|
||||
|
||||
#include "packet.h"
|
||||
#include "ipv4_helpers.h"
|
||||
#include "ipv4_utils.h"
|
||||
#include "ipv6_utils.h"
|
||||
|
||||
struct metadata
|
||||
{
|
||||
@@ -71,7 +72,7 @@ static inline bool paket_is_fragment(const struct packet *pkt)
|
||||
if (pkt->layers[i].type == LAYER_TYPE_IPV4)
|
||||
{
|
||||
struct ip *ip_hdr = (struct ip *)pkt->layers[i].hdr_ptr;
|
||||
if (ipv4_hdr_has_flag_mf(ip_hdr) || ipv4_hdr_get_frag_offset(ip_hdr))
|
||||
if (ipv4_hdr_get_mf_flag(ip_hdr) || ipv4_hdr_get_frag_offset(ip_hdr))
|
||||
{
|
||||
return true;
|
||||
}
|
||||
@@ -79,8 +80,8 @@ static inline bool paket_is_fragment(const struct packet *pkt)
|
||||
|
||||
if (pkt->layers[i].type == LAYER_TYPE_IPV6)
|
||||
{
|
||||
struct ip6_hdr *ip6_hdr = (struct ip6_hdr *)pkt->layers[i].hdr_ptr;
|
||||
if (ip6_hdr->ip6_nxt == IPPROTO_FRAGMENT)
|
||||
const struct ip6_hdr *ip6_hdr = (const struct ip6_hdr *)pkt->layers[i].hdr_ptr;
|
||||
if (ipv6_hdr_get_next_header(ip6_hdr) == IPPROTO_FRAGMENT)
|
||||
{
|
||||
return true;
|
||||
}
|
||||
@@ -97,7 +98,7 @@ static inline struct packet *packet_dup(const struct packet *pkt)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
struct packet *pkt_dup = (struct packet *)calloc(1, sizeof(struct packet));
|
||||
struct packet *pkt_dup = (struct packet *)calloc(1, sizeof(struct packet) + pkt->data_len);
|
||||
if (pkt_dup == NULL)
|
||||
{
|
||||
return NULL;
|
||||
@@ -105,9 +106,7 @@ static inline struct packet *packet_dup(const struct packet *pkt)
|
||||
memcpy(pkt_dup, pkt, sizeof(struct packet));
|
||||
pkt_dup->user_data = NULL;
|
||||
|
||||
if (pkt->data_len)
|
||||
{
|
||||
pkt_dup->data_ptr = (const char *)calloc(1, pkt->data_len);
|
||||
pkt_dup->data_ptr = (const char *)pkt_dup + sizeof(struct packet);
|
||||
if (pkt_dup->data_ptr == NULL)
|
||||
{
|
||||
free(pkt_dup);
|
||||
@@ -120,6 +119,10 @@ static inline struct packet *packet_dup(const struct packet *pkt)
|
||||
pkt_dup->layers[i].hdr_ptr = pkt_dup->data_ptr + pkt->layers[i].hdr_offset;
|
||||
pkt_dup->layers[i].pld_ptr = pkt_dup->data_ptr + pkt->layers[i].hdr_offset + pkt->layers[i].hdr_len;
|
||||
}
|
||||
|
||||
if (pkt->frag_layer)
|
||||
{
|
||||
pkt_dup->frag_layer = &pkt_dup->layers[pkt->frag_layer - pkt->layers];
|
||||
}
|
||||
packet_set0_metadata(pkt_dup, metadata_dup(packet_get0_metadata(pkt)));
|
||||
|
||||
@@ -133,66 +136,21 @@ static inline void packet_free(struct packet *pkt)
|
||||
metadata_free((struct metadata *)packet_get0_metadata(pkt));
|
||||
packet_set0_metadata(pkt, NULL);
|
||||
|
||||
if (pkt->data_ptr)
|
||||
{
|
||||
free((char *)pkt->data_ptr);
|
||||
pkt->data_ptr = NULL;
|
||||
}
|
||||
free(pkt);
|
||||
pkt = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
static inline uint64_t packet_get_domain(const struct packet *pkt)
|
||||
{
|
||||
return pkt->domain;
|
||||
}
|
||||
|
||||
static inline uint16_t packet_get_raw_len(const struct packet *pkt)
|
||||
static inline uint16_t packet_get_len(const struct packet *pkt)
|
||||
{
|
||||
return pkt->data_len;
|
||||
}
|
||||
|
||||
static inline const char *packet_get0_raw_data(const struct packet *pkt)
|
||||
static inline const char *packet_get_data(const struct packet *pkt)
|
||||
{
|
||||
return pkt->data_ptr;
|
||||
}
|
||||
|
||||
static inline uint8_t packet_get_layer_count(const struct packet *pkt)
|
||||
{
|
||||
return pkt->layers_used;
|
||||
}
|
||||
|
||||
static inline const struct layer_record *packet_get_layer(const struct packet *pkt, uint8_t index)
|
||||
{
|
||||
return &pkt->layers[index];
|
||||
}
|
||||
|
||||
static inline enum layer_type layer_get_type(const struct layer_record *layer)
|
||||
{
|
||||
return layer->type;
|
||||
}
|
||||
|
||||
static inline const char *layer_get_hdr_ptr(const struct layer_record *layer)
|
||||
{
|
||||
return layer->hdr_ptr;
|
||||
}
|
||||
|
||||
static inline const char *layer_get_pld_ptr(const struct layer_record *layer)
|
||||
{
|
||||
return layer->pld_ptr;
|
||||
}
|
||||
|
||||
static inline uint16_t layer_get_hdr_len(const struct layer_record *layer)
|
||||
{
|
||||
return layer->hdr_len;
|
||||
}
|
||||
|
||||
static inline uint16_t layer_get_pld_len(const struct layer_record *layer)
|
||||
{
|
||||
return layer->pld_len;
|
||||
}
|
||||
|
||||
#ifdef __cpluscplus
|
||||
}
|
||||
#endif
|
||||
|
||||
@@ -121,6 +121,11 @@ static inline uint16_t tcp_hdr_get_opt_len(const struct tcphdr *hdr)
|
||||
|
||||
static inline const char *tcp_hdr_get_opt_data(const struct tcphdr *hdr)
|
||||
{
|
||||
if (tcp_hdr_get_opt_len(hdr) == 0)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return ((const char *)hdr) + sizeof(struct tcphdr);
|
||||
}
|
||||
|
||||
@@ -52,7 +52,7 @@ TEST(IPV4_UTILS, GET1)
|
||||
EXPECT_TRUE(ipv4_hdr_get_src_addr(hdr) == 0xc0a82467);
|
||||
EXPECT_TRUE(ipv4_hdr_get_dst_addr(hdr) == 0xc0a82889);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_len(hdr) == 0);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == data + 20);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == NULL);
|
||||
}
|
||||
|
||||
TEST(IPV4_UTILS, SET1)
|
||||
@@ -143,7 +143,7 @@ TEST(IPV4_UTILS, GET2)
|
||||
EXPECT_TRUE(ipv4_hdr_get_src_addr(hdr) == 0xc0a82467);
|
||||
EXPECT_TRUE(ipv4_hdr_get_dst_addr(hdr) == 0xc0a82889);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_len(hdr) == 0);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == data + 20);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == NULL);
|
||||
}
|
||||
|
||||
TEST(IPV4_UTILS, SET2)
|
||||
@@ -236,7 +236,7 @@ TEST(IPV4_UTILS, GET3)
|
||||
EXPECT_TRUE(ipv4_hdr_get_src_addr(hdr) == 0x7f000001);
|
||||
EXPECT_TRUE(ipv4_hdr_get_dst_addr(hdr) == 0x7f000001);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_len(hdr) == 40);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == data + 20);
|
||||
EXPECT_TRUE(ipv4_hdr_get_opt_data(hdr) == (const char *)(data3 + 20));
|
||||
}
|
||||
|
||||
TEST(IPV4_UTILS, SET3)
|
||||
@@ -256,7 +256,7 @@ TEST(IPV4_UTILS, SET3)
|
||||
ipv4_hdr_set_src_addr(hdr, 0x7f000001);
|
||||
ipv4_hdr_set_dst_addr(hdr, 0x7f000001);
|
||||
ipv4_hdr_set_opt_len(hdr, 40);
|
||||
ipv4_hdr_set_opt_data(hdr, data3 + 20);
|
||||
ipv4_hdr_set_opt_data(hdr, (const char *)(data3 + 20));
|
||||
|
||||
ipv4_hdr_set_flags(hdr, 2);
|
||||
EXPECT_TRUE(memcmp(buff, data3, 60) == 0);
|
||||
|
||||
@@ -93,7 +93,7 @@ TEST(TCP_UTILS, GET)
|
||||
EXPECT_TRUE(tcp_hdr_get_checksum(hdr) == 0xfe30);
|
||||
EXPECT_TRUE(tcp_hdr_get_urg_ptr(hdr) == 0);
|
||||
EXPECT_TRUE(tcp_hdr_get_opt_len(hdr) == 20);
|
||||
EXPECT_TRUE(tcp_hdr_get_opt_data(hdr) == data + 20);
|
||||
EXPECT_TRUE(tcp_hdr_get_opt_data(hdr) == (const char *)(data + 20));
|
||||
}
|
||||
|
||||
TEST(TCP_UTILS, SET1)
|
||||
@@ -111,7 +111,7 @@ TEST(TCP_UTILS, SET1)
|
||||
tcp_hdr_set_checksum(hdr, 0xfe30);
|
||||
tcp_hdr_set_urg_ptr(hdr, 0);
|
||||
tcp_hdr_set_opt_len(hdr, 20);
|
||||
tcp_hdr_set_opt_data(hdr, data + 20);
|
||||
tcp_hdr_set_opt_data(hdr, (const char *)(data + 20));
|
||||
|
||||
EXPECT_TRUE(memcmp(buff, data, 40) == 0);
|
||||
}
|
||||
@@ -136,7 +136,7 @@ TEST(TCP_UTILS, SET2)
|
||||
tcp_hdr_set_checksum(hdr, 0xfe30);
|
||||
tcp_hdr_set_urg_ptr(hdr, 0);
|
||||
tcp_hdr_set_opt_len(hdr, 20);
|
||||
tcp_hdr_set_opt_data(hdr, data + 20);
|
||||
tcp_hdr_set_opt_data(hdr, (const char *)(data + 20));
|
||||
|
||||
EXPECT_TRUE(memcmp(buff, data, 40) == 0);
|
||||
}
|
||||
|
||||
@@ -197,7 +197,7 @@ TEST(TCP_ACTIVE_TO_CLOSING, BY_C2S_RST)
|
||||
EXPECT_TRUE(tcp_layer);
|
||||
struct tcphdr *hdr = (struct tcphdr *)tcp_layer->hdr_ptr;
|
||||
tcp_hdr_set_flags(hdr, 0);
|
||||
tcp_hdr_set_flag_rst(hdr);
|
||||
tcp_hdr_set_rst_flag(hdr, true);
|
||||
printf("<= packet parse\n\n");
|
||||
sess = session_manager_update_session(mgr, &pkt);
|
||||
EXPECT_TRUE(sess);
|
||||
@@ -261,7 +261,7 @@ TEST(TCP_ACTIVE_TO_CLOSING, BY_S2C_RST)
|
||||
EXPECT_TRUE(tcp_layer);
|
||||
struct tcphdr *hdr = (struct tcphdr *)tcp_layer->hdr_ptr;
|
||||
tcp_hdr_set_flags(hdr, 0);
|
||||
tcp_hdr_set_flag_rst(hdr);
|
||||
tcp_hdr_set_rst_flag(hdr, true);
|
||||
printf("<= packet parse\n\n");
|
||||
sess = session_manager_update_session(mgr, &pkt);
|
||||
EXPECT_TRUE(sess);
|
||||
|
||||
@@ -163,7 +163,7 @@ TEST(TCP_OPENING_TO_CLOSING, BY_C2S_RST)
|
||||
EXPECT_TRUE(tcp_layer);
|
||||
struct tcphdr *hdr = (struct tcphdr *)tcp_layer->hdr_ptr;
|
||||
tcp_hdr_set_flags(hdr, 0);
|
||||
tcp_hdr_set_flag_rst(hdr);
|
||||
tcp_hdr_set_rst_flag(hdr, true);
|
||||
printf("<= packet parse\n\n");
|
||||
sess = session_manager_update_session(mgr, &pkt);
|
||||
EXPECT_TRUE(sess);
|
||||
@@ -227,7 +227,7 @@ TEST(TCP_OPENING_TO_CLOSING, BY_S2C_RST)
|
||||
EXPECT_TRUE(tcp_layer);
|
||||
struct tcphdr *hdr = (struct tcphdr *)tcp_layer->hdr_ptr;
|
||||
tcp_hdr_set_flags(hdr, 0);
|
||||
tcp_hdr_set_flag_rst(hdr);
|
||||
tcp_hdr_set_rst_flag(hdr, true);
|
||||
printf("<= packet parse\n\n");
|
||||
sess = session_manager_update_session(mgr, &pkt);
|
||||
EXPECT_TRUE(sess);
|
||||
|
||||
Reference in New Issue
Block a user