/* main.c - Application main entry point */ /* * Copyright (c) 2017 Intel Corporation * * SPDX-License-Identifier: Apache-2.0 */ #include LOG_MODULE_REGISTER(net_test, CONFIG_NET_IPV6_LOG_LEVEL); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define NET_LOG_ENABLED 1 #include "net_private.h" #include "ipv6.h" #include "udp_internal.h" /* Interface 1 addresses */ static struct in6_addr my_addr1 = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x1 } } }; /* Interface 2 addresses */ static struct in6_addr my_addr2 = { { { 0x20, 0x01, 0x0d, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2 } } }; /* Extra address is assigned to ll_addr */ static struct in6_addr ll_addr = { { { 0xfe, 0x80, 0x43, 0xb8, 0, 0, 0, 0, 0, 0, 0, 0xf2, 0xaa, 0x29, 0x02, 0x04 } } }; static uint8_t mac2_addr[] = { 0x02, 0x00, 0x00, 0x00, 0x00, 0x02 }; static struct net_linkaddr ll_addr2 = { .addr = mac2_addr, .len = 6, }; /* No extension header */ static const unsigned char ipv6_udp[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x36, 0x11, 0x3f, /* `....6.? */ 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, /* UDP header starts here (leave checksum field empty) */ 0xaa, 0xdc, 0xbf, 0xd7, 0x00, 0x2e, 0x00, 0x00, /* ......M. */ /* User data starts here and is appended in corresponding function */ }; /* IPv6 hop-by-hop option in the message */ static const unsigned char ipv6_hbho[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x3f, /* `....6.? */ 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, /* Hop-by-hop option starts here */ 0x11, 0x00, /* RPL sub-option starts here */ 0x63, 0x04, 0x80, 0x1e, 0x01, 0x00, /* ..c..... */ /* UDP header starts here (leave checksum field empty) */ 0xaa, 0xdc, 0xbf, 0xd7, 0x00, 0x2e, 0x00, 0x00, /* ......M. */ /* User data starts here and is appended in corresponding function */ }; /* IPv6 hop-by-hop option in the message HBHO (72 Bytes) */ static const unsigned char ipv6_hbho_1[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x78, 0x00, 0x40, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0xc0, 0xde, 0xff, 0xfe, 0x9b, 0xb4, 0x47, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* Hop-by-hop option starts here */ 0x11, 0x08, /* Padding */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* UDP header starts here (8 bytes) */ 0x4e, 0x20, 0x10, 0x92, 0x00, 0x30, 0xa1, 0xc5, /* User data starts here (40 bytes) */ 0x30, 0x26, 0x02, 0x01, 0x00, 0x04, 0x06, 0x70, 0x75, 0x62, 0x6c, 0x69, 0x63, 0xa0, 0x19, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x30, 0x0c, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x02, 0x01, 0x01, 0x05, 0x00, 0x05, 0x00 }; /* IPv6 hop-by-hop option in the message HBHO (104 Bytes) */ static const unsigned char ipv6_hbho_2[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x98, 0x00, 0x40, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0xc0, 0xde, 0xff, 0xfe, 0x9b, 0xb4, 0x47, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* Hop-by-hop option starts here */ 0x11, 0x0c, /* padding */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x04, 0x00, 0x00, 0x00, 0x00, /* udp header starts here (8 bytes) */ 0x4e, 0x20, 0x10, 0x92, 0x00, 0x30, 0xa1, 0xc5, /* User data starts here (40 bytes) */ 0x30, 0x26, 0x02, 0x01, 0x00, 0x04, 0x06, 0x70, 0x75, 0x62, 0x6c, 0x69, 0x63, 0xa0, 0x19, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x30, 0x0c, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x02, 0x01, 0x01, 0x05, 0x00, 0x05, 0x00 }; /* IPv6 hop-by-hop option in the message HBHO (920 bytes) */ static const unsigned char ipv6_hbho_3[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x03, 0xc8, 0x00, 0x40, 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0xc0, 0xde, 0xff, 0xfe, 0x9b, 0xb4, 0x47, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* Hop-by-hop option starts here */ 0x11, 0x72, /* padding */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x01, 0x00, 0x04, 0x06, 0x70, 0x75, 0x62, 0x6c, 0x69, 0x63, 0xa0, 0x19, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x02, 0x01, 0x00, 0x30, 0x0e, 0x30, 0x0c, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x02, 0x01, 0x01, 0x05, 0x00, 0x05, 0x00 }; /* IPv6 hop-by-hop option in the message */ static const unsigned char ipv6_hbho_frag[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x3f, /* `....6.? */ 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, /* Hop-by-hop option starts here */ 0x2c, 0x00, /* RPL sub-option starts here */ 0x63, 0x04, 0x80, 0x1e, 0x01, 0x00, /* ..c..... */ /* IPv6 fragment header */ 0x11, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, /* UDP header starts here (checksum is "fixed" in this example) */ 0xaa, 0xdc, 0xbf, 0xd7, 0x00, 0x2e, 0xa2, 0x55, /* ......M. */ /* User data starts here and is appended in corresponding function */ }; /* IPv6 hop-by-hop option in the message */ static const unsigned char ipv6_hbho_frag_1[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x05, 0xb0, 0x00, 0x40 , 0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x08, 0xc0, 0xde, 0xff, 0xfe, 0xc9, 0xa0, 0x4b , 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 /* Hop-by-hop option starts here */ , 0x2c, 0x80 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 }; /* IPv6 hop-by-hop option in the message */ static const unsigned char ipv6_large_hbho[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x05, 0xa8, 0x00, 0x40 , 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 , 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02 /* Hop-by-hop option starts here */ , 0x3a, 0x80 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 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0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 , 0x02, 0x03, 0x04, 0x01, 0x02, 0x03, 0x04, 0x01 }; static unsigned char ipv6_first_frag[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x3f, /* `....6.? */ 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, /* Hop-by-hop option starts here */ 0x2C, 0x00, /* RPL sub-option starts here */ 0x63, 0x04, 0x80, 0x1e, 0x01, 0x00, /* ..c..... */ /* IPv6 fragment header */ 0x11, 0x00, 0x00, 0x01, 0x01, 0x02, 0x03, 0x04, /* UDP header starts here (checksum is "fixed" in this example) */ 0xaa, 0xdc, 0xbf, 0xd7, 0x00, 0x2e, 0xa2, 0x55, /* ......M. */ /* User data starts here and is appended in corresponding function */ }; static unsigned char ipv6_second_frag[] = { /* IPv6 header starts here */ 0x60, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x3f, /* `....6.? */ 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x20, 0x01, 0x0D, 0xB8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, /* Hop-by-hop option starts here */ 0x2C, 0x00, /* RPL sub-option starts here */ 0x63, 0x04, 0x80, 0x1e, 0x01, 0x00, /* ..c..... */ /* IPv6 fragment header */ 0x11, 0x00, 0x00, 0x00, 0x01, 0x02, 0x03, 0x04, }; static unsigned char ipv6_frag_wo_hbho[] = { 0x60, 0x08, 0xd7, 0x22, 0x05, 0x1c, 0x3a, 0x40, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, /* ICMPv6 header */ 0x80, 0x00, 0xb2, 0xb2, 0x28, 0x5b, 0x00, 0x01, /* Payload */ 0x55, 0x85, 0x93, 0x5c, 0x00, 0x00, 0x00, 0x00, 0x72, 0xe0, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 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0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13 }; static int frag_count; static struct net_if *iface1; static bool test_failed; static bool test_started; static bool test_complete; static struct k_sem wait_data; static uint16_t pkt_data_len; static uint16_t pkt_recv_data_len; #define WAIT_TIME K_SECONDS(1) #define ALLOC_TIMEOUT K_MSEC(500) struct net_if_test { uint8_t idx; uint8_t mac_addr[sizeof(struct net_eth_addr)]; struct net_linkaddr ll_addr; }; enum net_test_type { NO_TEST_TYPE, IPV6_SMALL_HBHO_FRAG, IPV6_LARGE_HBHO_FRAG, IPV6_WITHOUT_HBHO_FRAG, IPV6_UDP_LOOPBACK, }; static enum net_test_type test_type = NO_TEST_TYPE; static uint8_t *net_iface_get_mac(const struct device *dev) { struct net_if_test *data = dev->data; if (data->mac_addr[2] == 0x00) { /* 00-00-5E-00-53-xx Documentation RFC 7042 */ data->mac_addr[0] = 0x00; data->mac_addr[1] = 0x00; data->mac_addr[2] = 0x5E; data->mac_addr[3] = 0x00; data->mac_addr[4] = 0x53; data->mac_addr[5] = sys_rand8_get(); } data->ll_addr.addr = data->mac_addr; data->ll_addr.len = 6U; return data->mac_addr; } static void net_iface_init(struct net_if *iface) { uint8_t *mac = net_iface_get_mac(net_if_get_device(iface)); net_if_set_link_addr(iface, mac, sizeof(struct net_eth_addr), NET_LINK_ETHERNET); } static void test_pkt_loopback(struct net_pkt *pkt) { struct net_pkt *recv_pkt; uint8_t buf_ip_src[NET_IPV6_ADDR_SIZE]; uint8_t buf_ip_dst[NET_IPV6_ADDR_SIZE]; uint16_t buf_port_src; uint16_t buf_port_dst; int ret; /* Duplicate the packet and flip the source/destination IPs and ports then * re-insert the packets back into the same interface */ recv_pkt = net_pkt_rx_clone(pkt, K_NO_WAIT); net_pkt_set_overwrite(recv_pkt, true); /* Read IPs */ net_pkt_cursor_init(recv_pkt); net_pkt_skip(recv_pkt, 8); net_pkt_read(recv_pkt, buf_ip_src, sizeof(buf_ip_src)); net_pkt_read(recv_pkt, buf_ip_dst, sizeof(buf_ip_dst)); /* Write opposite IPs */ net_pkt_cursor_init(recv_pkt); net_pkt_skip(recv_pkt, 8); net_pkt_write(recv_pkt, buf_ip_dst, sizeof(buf_ip_dst)); net_pkt_write(recv_pkt, buf_ip_src, sizeof(buf_ip_src)); if (frag_count == 1) { /* Offset is 0, flip ports of packet */ net_pkt_cursor_init(recv_pkt); net_pkt_skip(recv_pkt, NET_IPV6H_LEN + NET_IPV6_FRAGH_LEN); net_pkt_read_be16(recv_pkt, &buf_port_src); net_pkt_read_be16(recv_pkt, &buf_port_dst); net_pkt_cursor_init(recv_pkt); net_pkt_skip(recv_pkt, NET_IPV6H_LEN + NET_IPV6_FRAGH_LEN); net_pkt_write_be16(recv_pkt, buf_port_dst); net_pkt_write_be16(recv_pkt, buf_port_src); } /* Reset position to beginning and ready packet for insertion */ net_pkt_cursor_init(recv_pkt); net_pkt_set_overwrite(recv_pkt, false); net_pkt_set_iface(recv_pkt, net_pkt_iface(pkt)); ret = net_recv_data(net_pkt_iface(recv_pkt), recv_pkt); zassert_equal(ret, 0, "Cannot receive data (%d)", ret); } static int verify_fragment(struct net_pkt *pkt) { /* The fragment needs to have * 1) IPv6 header * 2) HBH option (if any) * 3) IPv6 fragment header * 4) UDP/ICMPv6/TCP header * 5) data */ uint16_t offset; frag_count++; NET_DBG("test_type %d, frag count %d", test_type, frag_count); switch (test_type) { case IPV6_SMALL_HBHO_FRAG: goto small; case IPV6_LARGE_HBHO_FRAG: goto large; case IPV6_WITHOUT_HBHO_FRAG: goto without; case IPV6_UDP_LOOPBACK: goto udp_loopback; default: return 0; } small: if (frag_count == 1) { /* First fragment received. Make sure that all the * things are correct before the fragment header. */ size_t total_len = net_pkt_get_len(pkt); total_len -= sizeof(struct net_ipv6_hdr); ipv6_first_frag[4] = total_len / 256; ipv6_first_frag[5] = total_len - ipv6_first_frag[4] * 256U; if ((total_len / 256) != pkt->buffer->data[4]) { NET_DBG("Invalid length, 1st byte"); return -EINVAL; } if ((total_len - pkt->buffer->data[4] * 256U) != pkt->buffer->data[5]) { NET_DBG("Invalid length, 2nd byte"); return -EINVAL; } offset = pkt->buffer->data[6 * 8 + 2] * 256U + (pkt->buffer->data[6 * 8 + 3] & 0xfe); if (offset != 0U) { NET_DBG("Invalid offset %d", offset); return -EINVAL; } if ((ipv6_first_frag[6 * 8 + 3] & 0x01) != 1) { NET_DBG("Invalid MORE flag for first fragment"); return -EINVAL; } pkt_recv_data_len += total_len - 8 /* HBHO */ - sizeof(struct net_ipv6_frag_hdr); /* Rewrite the fragment id so that the memcmp() will not fail */ ipv6_first_frag[6 * 8 + 4] = pkt->buffer->data[6 * 8 + 4]; ipv6_first_frag[6 * 8 + 5] = pkt->buffer->data[6 * 8 + 5]; ipv6_first_frag[6 * 8 + 6] = pkt->buffer->data[6 * 8 + 6]; ipv6_first_frag[6 * 8 + 7] = pkt->buffer->data[6 * 8 + 7]; if (memcmp(pkt->buffer->data, ipv6_first_frag, 7 * 8) != 0) { net_hexdump("received", pkt->buffer->data, 7 * 8); NET_DBG(""); net_hexdump("expected", ipv6_first_frag, 7 * 8); return -EINVAL; } } if (frag_count == 2) { /* Second fragment received. */ size_t total_len = net_pkt_get_len(pkt); total_len -= sizeof(struct net_ipv6_hdr); ipv6_second_frag[4] = total_len / 256; ipv6_second_frag[5] = total_len - ipv6_second_frag[4] * 256U; if ((total_len / 256) != pkt->buffer->data[4]) { NET_DBG("Invalid length, 1st byte"); return -EINVAL; } if ((total_len - pkt->buffer->data[4] * 256U) != pkt->buffer->data[5]) { NET_DBG("Invalid length, 2nd byte"); return -EINVAL; } offset = pkt->buffer->data[6 * 8 + 2] * 256U + (pkt->buffer->data[6 * 8 + 3] & 0xfe); if (offset != pkt_recv_data_len) { NET_DBG("Invalid offset %d received %d", offset, pkt_recv_data_len); return -EINVAL; } /* Make sure the MORE flag is set correctly */ if ((pkt->buffer->data[6 * 8 + 3] & 0x01) != 0U) { NET_DBG("Invalid MORE flag for second fragment"); return -EINVAL; } pkt_recv_data_len += total_len - 8 /* HBHO */ - 8 /* UDP */ - sizeof(struct net_ipv6_frag_hdr); ipv6_second_frag[6 * 8 + 2] = pkt->buffer->data[6 * 8 + 2]; ipv6_second_frag[6 * 8 + 3] = pkt->buffer->data[6 * 8 + 3]; /* Rewrite the fragment id so that the memcmp() will not fail */ ipv6_second_frag[6 * 8 + 4] = pkt->buffer->data[6 * 8 + 4]; ipv6_second_frag[6 * 8 + 5] = pkt->buffer->data[6 * 8 + 5]; ipv6_second_frag[6 * 8 + 6] = pkt->buffer->data[6 * 8 + 6]; ipv6_second_frag[6 * 8 + 7] = pkt->buffer->data[6 * 8 + 7]; if (memcmp(pkt->buffer->data, ipv6_second_frag, 7 * 8) != 0) { net_hexdump("received 2", pkt->buffer->data, 7 * 8); NET_DBG(""); net_hexdump("expected 2", ipv6_second_frag, 7 * 8); return -EINVAL; } if (pkt_data_len != pkt_recv_data_len) { NET_DBG("Invalid amount of data received (%d vs %d)", pkt_data_len, pkt_recv_data_len); return -EINVAL; } test_complete = true; } return 0; large: net_pkt_cursor_init(pkt); if (frag_count == 1) { uint16_t exp_ext_len = 1040U; /* 1032 (HBHO) + 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 200U; uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } /* IPv6 + HBHO + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 1032 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 1032 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 0U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 1U) { NET_DBG("Fragment More flag should be set"); return -EINVAL; } } if (frag_count == 2) { uint16_t exp_ext_len = 1040U; /* 1032 (HBHO) + 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 200U; uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } /* IPv6 + HBHO + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 1032 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 1032 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 200U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 1U) { NET_DBG("Fragment More flag should be set"); return -EINVAL; } } if (frag_count == 3) { uint16_t exp_ext_len = 1040U; /* 1032 (HBHO) + 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 16U; uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } /* IPv6 + HBHO + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 1032 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 1032 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 400U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 0U) { NET_DBG("Fragment More flag should be unset"); return -EINVAL; } test_complete = true; } return 0; without: net_pkt_cursor_init(pkt); if (frag_count == 1) { uint16_t exp_ext_len = 8U; /* 0 (HBHO) + 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 1232U; uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } /* IPv6 + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) { NET_DBG("Invalid IPv6 next header %d", pkt->buffer->data[6]); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 0U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 1U) { NET_DBG("Fragment More flag should be set"); return -EINVAL; } } if (frag_count == 2) { uint16_t exp_ext_len = 8U; /* 0 (HBHO) + 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 76U; uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) { NET_DBG("Invalid IPv6 next header %d", pkt->buffer->data[6]); return -EINVAL; } /* IPv6 + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 1232U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 0U) { NET_DBG("Fragment More flag should be unset"); return -EINVAL; } test_complete = true; } return 0; udp_loopback: net_pkt_cursor_init(pkt); if (frag_count == 1) { uint16_t exp_ext_len = 8U; /* 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 1232U; uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } /* IPv6 + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) { NET_DBG("Invalid IPv6 next header %d", pkt->buffer->data[6]); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 0U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 1U) { NET_DBG("Fragment More flag should be set"); return -EINVAL; } } if (frag_count == 2) { uint16_t exp_ext_len = 8U; /* 8 (FRAG)*/ uint16_t recv_ext_len; uint16_t exp_payload_len = 376U; /* 1608 (data + UDP) - 1232 (fragment 1) */ uint16_t recv_payload_len; uint16_t frag_offset; recv_ext_len = net_pkt_ipv6_ext_len(pkt); if (recv_ext_len != exp_ext_len) { NET_DBG("Expected amount of Ext headers len is %d," "but received %d", exp_ext_len, recv_ext_len); return -EINVAL; } if (pkt->buffer->data[6] != NET_IPV6_NEXTHDR_FRAG) { NET_DBG("Invalid IPv6 next header %d", pkt->buffer->data[6]); return -EINVAL; } /* IPv6 + FRAG */ recv_payload_len = net_pkt_get_len(pkt) - 40 - 8; if (recv_payload_len != exp_payload_len) { NET_DBG("Expected amount of payload len is %d," "but received %d", exp_payload_len, recv_payload_len); return -EINVAL; } if (net_pkt_skip(pkt, 40 + 2) || net_pkt_read_be16(pkt, &frag_offset)) { return -EINVAL; } if ((frag_offset & 0xfff8) != 1232U) { NET_DBG("Invalid fragment offset %d", frag_offset & 0xfff8); return -EINVAL; } if ((frag_offset & 0x0001) != 0U) { NET_DBG("Fragment More flag should be unset"); return -EINVAL; } } test_pkt_loopback(pkt); return 0; } static enum net_verdict udp_data_received(struct net_conn *conn, struct net_pkt *pkt, union net_ip_header *ip_hdr, union net_proto_header *proto_hdr, void *user_data) { const struct net_ipv6_hdr *hdr = NET_IPV6_HDR(pkt); uint8_t verify_buf[NET_IPV6H_LEN]; size_t expected_pkt_length = NET_IPV6H_LEN + NET_UDPH_LEN + 1600U; uint16_t expected_udp_length = htons(1600U + NET_UDPH_LEN); static const char expected_data[] = "123456789."; const size_t expected_data_len = sizeof(expected_data) - 1; uint16_t i; NET_DBG("Data %p received", pkt); zassert_equal(test_type, IPV6_UDP_LOOPBACK, "Packet should only be received in UDP loopback test"); zassert_equal(net_pkt_get_len(pkt), expected_pkt_length, "Invalid packet length"); /* Verify IPv6 header is valid */ zassert_equal(hdr->vtc, ipv6_udp[offsetof(struct net_ipv6_hdr, vtc)], "IPv6 header vtc mismatch"); zassert_equal(hdr->tcflow, ipv6_udp[offsetof(struct net_ipv6_hdr, tcflow)], "IPv6 header tcflow mismatch"); zassert_mem_equal(&hdr->flow, &ipv6_udp[offsetof(struct net_ipv6_hdr, flow)], sizeof(hdr->flow), "IPv6 header flow mismatch"); zassert_equal(hdr->len, expected_udp_length, "IPv6 header len mismatch"); zassert_equal(hdr->nexthdr, ipv6_udp[offsetof(struct net_ipv6_hdr, nexthdr)], "IPv6 header nexthdr mismatch"); zassert_equal(hdr->hop_limit, ipv6_udp[offsetof(struct net_ipv6_hdr, hop_limit)], "IPv6 header hop_limit mismatch"); zassert_mem_equal(hdr->src, &ipv6_udp[offsetof(struct net_ipv6_hdr, dst)], NET_IPV6_ADDR_SIZE, "IPv6 header source IP mismatch"); zassert_mem_equal(hdr->dst, &ipv6_udp[offsetof(struct net_ipv6_hdr, src)], NET_IPV6_ADDR_SIZE, "IPv6 header destination IP mismatch"); /* Verify UDP header is valid */ net_pkt_cursor_init(pkt); net_pkt_read(pkt, verify_buf, NET_IPV6H_LEN); net_pkt_read(pkt, verify_buf, NET_UDPH_LEN); zassert_mem_equal(verify_buf, &ipv6_udp[NET_IPV6H_LEN + 2], 2, "UDP header source port mismatch"); zassert_mem_equal(verify_buf + 2, &ipv6_udp[NET_IPV6H_LEN], 2, "UDP header destination port mismatch"); zassert_mem_equal(verify_buf + 4, &expected_udp_length, 2, "UDP header length mismatch"); zassert_equal(net_calc_verify_chksum_udp(pkt), 0, "UDP header invalid checksum"); /* Verify data is valid */ i = NET_IPV6H_LEN + NET_UDPH_LEN; while (i < net_pkt_get_len(pkt)) { memset(verify_buf, 0, sizeof(verify_buf)); net_pkt_read(pkt, verify_buf, expected_data_len); zassert_mem_equal(verify_buf, expected_data, expected_data_len, "UDP data verification failure"); i += expected_data_len; } net_pkt_unref(pkt); test_complete = true; return NET_OK; } static int sender_iface(const struct device *dev, struct net_pkt *pkt) { if (!pkt->buffer) { NET_DBG("No data to send!"); return -ENODATA; } if (test_started) { /* Verify the fragments */ if (verify_fragment(pkt) < 0) { NET_DBG("Fragments cannot be verified"); test_failed = true; } } zassert_false(test_failed, "Fragment verify failed"); if (test_complete) { k_sem_give(&wait_data); } return 0; } struct net_if_test net_iface1_data; static struct dummy_api net_iface_api = { .iface_api.init = net_iface_init, .send = sender_iface, }; #define _ETH_L2_LAYER DUMMY_L2 #define _ETH_L2_CTX_TYPE NET_L2_GET_CTX_TYPE(DUMMY_L2) NET_DEVICE_INIT_INSTANCE(net_iface1_test, "iface1", iface1, NULL, NULL, &net_iface1_data, NULL, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &net_iface_api, _ETH_L2_LAYER, _ETH_L2_CTX_TYPE, NET_IPV6_MTU); static void add_nbr(struct net_if *iface, struct in6_addr *addr, struct net_linkaddr *lladdr) { struct net_nbr *nbr; nbr = net_ipv6_nbr_add(iface, addr, lladdr, false, NET_IPV6_NBR_STATE_REACHABLE); zassert_not_null(nbr, "Cannot add neighbor"); } static void setup_udp_handler(const struct in6_addr *raddr, const struct in6_addr *laddr, uint16_t remote_port, uint16_t local_port) { static struct net_conn_handle *handle; struct sockaddr remote_addr = { 0 }; struct sockaddr local_addr = { 0 }; int ret; net_ipaddr_copy(&net_sin6(&local_addr)->sin6_addr, laddr); local_addr.sa_family = AF_INET6; net_ipaddr_copy(&net_sin6(&remote_addr)->sin6_addr, raddr); remote_addr.sa_family = AF_INET6; ret = net_udp_register(AF_INET6, &remote_addr, &local_addr, remote_port, local_port, NULL, udp_data_received, NULL, &handle); zassert_equal(ret, 0, "Cannot register UDP handler"); } static void *test_setup(void) { struct net_if_addr *ifaddr; int idx; /* The semaphore is there to wait the data to be received. */ k_sem_init(&wait_data, 0, UINT_MAX); iface1 = net_if_get_by_index(1); ((struct net_if_test *) net_if_get_device(iface1)->data)->idx = net_if_get_by_iface(iface1); idx = net_if_get_by_iface(iface1); zassert_equal(idx, 1, "Invalid index iface1"); zassert_not_null(iface1, "Interface 1"); ifaddr = net_if_ipv6_addr_add(iface1, &my_addr1, NET_ADDR_MANUAL, 0); if (!ifaddr) { NET_DBG("Cannot add IPv6 address %s", net_sprint_ipv6_addr(&my_addr1)); zassert_not_null(ifaddr, "addr1"); } ifaddr = net_if_ipv6_addr_add(iface1, &ll_addr, NET_ADDR_MANUAL, 0); if (!ifaddr) { NET_DBG("Cannot add IPv6 address %s", net_sprint_ipv6_addr(&ll_addr)); zassert_not_null(ifaddr, "ll_addr"); } else { /* we need to set the addresses preferred */ ifaddr->addr_state = NET_ADDR_PREFERRED; } net_if_up(iface1); add_nbr(iface1, &my_addr2, &ll_addr2); /* Remote and local are swapped so that we can receive the sent * packet. */ setup_udp_handler(&my_addr2, &my_addr1, 49111, 43740); /* The interface might receive data which might fail the checks * in the iface sending function, so we need to reset the failure * flag. */ test_failed = false; test_started = true; return NULL; } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_udp) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_udp), AF_INET6, IPPROTO_UDP, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); net_pkt_set_ipv6_ext_len(pkt, sizeof(ipv6_udp) - sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + UDP */ ret = net_pkt_write(pkt, ipv6_udp, sizeof(ipv6_udp)); zassert_true(ret == 0, "IPv6 header append failed"); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, 6, "Next header index wrong"); zassert_equal(last_hdr_pos, sizeof(struct net_ipv6_hdr), "Last header position wrong"); zassert_equal(NET_IPV6_HDR(pkt)->nexthdr, 0x11, "Invalid next header"); zassert_equal(pkt->buffer->data[next_hdr_pos], 0x11, "Invalid next " "header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_hbho_udp) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho) + sizeof(struct net_ipv6_hdr) + 6, AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); net_pkt_set_ipv6_ext_len(pkt, sizeof(ipv6_hbho) - sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + HBH option */ ret = net_pkt_write(pkt, ipv6_hbho, sizeof(ipv6_hbho)); zassert_true(ret == 0, "IPv6 header append failed"); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, sizeof(struct net_ipv6_hdr), "Next header index wrong"); zassert_equal(last_hdr_pos, sizeof(struct net_ipv6_hdr) + 8, "Last header position wrong"); zassert_equal(NET_IPV6_HDR(pkt)->nexthdr, 0, "Invalid next header"); zassert_equal(pkt->buffer->data[next_hdr_pos], 0x11, "Invalid next " "header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_hbho_1) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; uint8_t next_hdr; uint8_t last_hdr; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_1), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + HBH option + fragment header */ ret = net_pkt_write(pkt, ipv6_hbho_1, sizeof(ipv6_hbho_1)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, 40, "Next header position wrong"); zassert_equal(last_hdr_pos, 112, "Last header position wrong"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, next_hdr_pos); net_pkt_read_u8(pkt, &next_hdr); zassert_equal(next_hdr, 0x11, "Invalid next header"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, last_hdr_pos); net_pkt_read_u8(pkt, &last_hdr); zassert_equal(last_hdr, 0x4e, "Invalid last header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_hbho_2) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; uint8_t next_hdr; uint8_t last_hdr; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_2), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + HBH option + fragment header */ ret = net_pkt_write(pkt, ipv6_hbho_2, sizeof(ipv6_hbho_2)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, 40, "Next header position wrong"); zassert_equal(last_hdr_pos, 144, "Last header position wrong"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, next_hdr_pos); net_pkt_read_u8(pkt, &next_hdr); zassert_equal(next_hdr, 0x11, "Invalid next header"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, last_hdr_pos); net_pkt_read_u8(pkt, &last_hdr); zassert_equal(last_hdr, 0x4e, "Invalid last header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_hbho_3) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; uint8_t next_hdr; uint8_t last_hdr; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_3), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + HBH option + fragment header */ ret = net_pkt_write(pkt, ipv6_hbho_3, sizeof(ipv6_hbho_3)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, 40, "Next header position wrong"); zassert_equal(last_hdr_pos, 960, "Last header position wrong"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, next_hdr_pos); net_pkt_read_u8(pkt, &next_hdr); zassert_equal(next_hdr, 0x11, "Invalid next header"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, last_hdr_pos); net_pkt_read_u8(pkt, &last_hdr); zassert_equal(last_hdr, 0x4e, "Invalid last header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_hbho_frag) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_frag), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + HBH option + fragment header */ ret = net_pkt_write(pkt, ipv6_hbho_frag, sizeof(ipv6_hbho_frag)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, sizeof(struct net_ipv6_hdr) + 8, "Next header position wrong"); zassert_equal(last_hdr_pos, sizeof(struct net_ipv6_hdr) + 8 + 8, "Last header position wrong"); zassert_equal(NET_IPV6_HDR(pkt)->nexthdr, 0, "Invalid next header"); zassert_equal(pkt->buffer->data[next_hdr_pos], 0x11, "Invalid next header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_find_last_ipv6_fragment_hbho_frag_1) { uint16_t next_hdr_pos = 0U; uint16_t last_hdr_pos = 0U; struct net_pkt *pkt; uint8_t next_hdr; uint8_t last_hdr; int ret; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho_frag_1), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); /* Add IPv6 header + HBH option + fragment header */ ret = net_pkt_write(pkt, ipv6_hbho_frag_1, sizeof(ipv6_hbho_frag_1)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); ret = net_ipv6_find_last_ext_hdr(pkt, &next_hdr_pos, &last_hdr_pos); zassert_equal(ret, 0, "Cannot find last header"); zassert_equal(next_hdr_pos, 1072, "Next header position wrong"); zassert_equal(last_hdr_pos, 1080, "Last header position wrong"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, next_hdr_pos); net_pkt_read_u8(pkt, &next_hdr); zassert_equal(next_hdr, 0x3a, "Invalid next header"); net_pkt_cursor_init(pkt); net_pkt_skip(pkt, last_hdr_pos); net_pkt_read_u8(pkt, &last_hdr); zassert_equal(last_hdr, 0x80, "Invalid next header"); net_pkt_unref(pkt); } ZTEST(net_ipv6_fragment, test_send_ipv6_fragment) { #define MAX_LEN 1600 static char data[] = "123456789."; int data_len = sizeof(data) - 1; int count = MAX_LEN / data_len; struct net_pkt *pkt; size_t total_len; int i, ret; test_type = IPV6_SMALL_HBHO_FRAG; pkt_data_len = 0U; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_hbho) + (count * data_len), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_iface(pkt, iface1); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); net_pkt_set_ipv6_ext_len(pkt, 8); /* hbho */ /* Add IPv6 header + HBH option */ ret = net_pkt_write(pkt, ipv6_hbho, sizeof(ipv6_hbho)); zassert_true(ret == 0, "IPv6 header append failed"); /* Then add some data that is over 1280 bytes long */ for (i = 0; i < count; i++) { ret = net_pkt_write(pkt, data, data_len); zassert_true(ret == 0, "Cannot append data"); pkt_data_len += data_len; } zassert_equal(pkt_data_len, count * data_len, "Data size mismatch"); total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr); NET_DBG("Sending %zd bytes of which ext %d and data %d bytes", total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len); zassert_equal(total_len - net_pkt_ipv6_ext_len(pkt) - 8, pkt_data_len, "Packet size invalid"); NET_IPV6_HDR(pkt)->len = htons(total_len); net_pkt_cursor_init(pkt); net_pkt_set_overwrite(pkt, true); net_pkt_skip(pkt, net_pkt_ip_hdr_len(pkt) + net_pkt_ipv6_ext_len(pkt)); net_udp_finalize(pkt, false); test_failed = false; test_complete = false; ret = net_send_data(pkt); if (ret < 0) { NET_DBG("Cannot send test packet (%d)", ret); zassert_equal(ret, 0, "Cannot send"); } if (k_sem_take(&wait_data, WAIT_TIME)) { NET_DBG("Timeout while waiting interface data"); zassert_true(false, "Timeout"); } } ZTEST(net_ipv6_fragment, test_send_ipv6_fragment_large_hbho) { struct net_pkt *pkt; size_t total_len; int ret; frag_count = 0; pkt_data_len = 416U; test_type = IPV6_LARGE_HBHO_FRAG; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_large_hbho), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); net_pkt_set_ipv6_ext_len(pkt, 1032); /* hbho */ ret = net_pkt_write(pkt, ipv6_large_hbho, sizeof(ipv6_large_hbho)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr); NET_DBG("Sending %zd bytes of which ext %d and data %d bytes", total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len); test_failed = false; test_complete = false; ret = net_send_data(pkt); if (ret < 0) { NET_DBG("Cannot send test packet (%d)", ret); zassert_equal(ret, 0, "Cannot send"); } if (k_sem_take(&wait_data, WAIT_TIME)) { NET_DBG("Timeout while waiting interface data"); zassert_true(false, "Timeout"); } } ZTEST(net_ipv6_fragment, test_send_ipv6_fragment_without_hbho) { struct net_pkt *pkt; size_t total_len; int ret; frag_count = 0; pkt_data_len = sizeof(ipv6_frag_wo_hbho) - sizeof(struct net_ipv6_hdr) - NET_IPV6_FRAGH_LEN; test_type = IPV6_WITHOUT_HBHO_FRAG; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_frag_wo_hbho), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); net_pkt_set_ipv6_ext_len(pkt, NET_IPV6_FRAGH_LEN); /* without hbho*/ ret = net_pkt_write(pkt, ipv6_frag_wo_hbho, sizeof(ipv6_frag_wo_hbho)); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_set_overwrite(pkt, true); total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr) - NET_IPV6_FRAGH_LEN; NET_DBG("Sending %zd bytes of which ext %d and data %d bytes", total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len); test_failed = false; test_complete = false; ret = net_send_data(pkt); if (ret < 0) { NET_DBG("Cannot send test packet (%d)", ret); zassert_equal(ret, 0, "Cannot send"); } if (k_sem_take(&wait_data, WAIT_TIME)) { NET_DBG("Timeout while waiting interface data"); zassert_true(false, "Timeout"); } } ZTEST(net_ipv6_fragment, test_send_ipv6_fragment_udp_loopback) { #define MAX_LEN 1600 static const char data[] = "123456789."; int data_len = sizeof(data) - 1; int count = MAX_LEN / data_len; struct net_pkt *pkt; size_t total_len; int i, ret; frag_count = 0; test_type = IPV6_UDP_LOOPBACK; pkt_data_len = 0U; pkt = net_pkt_alloc_with_buffer(iface1, sizeof(ipv6_udp) + (count * data_len), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt, "packet"); net_pkt_set_iface(pkt, iface1); net_pkt_set_family(pkt, AF_INET6); net_pkt_set_ip_hdr_len(pkt, sizeof(struct net_ipv6_hdr)); net_pkt_set_ipv6_ext_len(pkt, 0); /* Add IPv6 header + HBH option */ ret = net_pkt_write(pkt, ipv6_udp, sizeof(ipv6_udp)); zassert_true(ret == 0, "IPv6 header append failed"); /* Then add some data that is over 1280 bytes long */ for (i = 0; i < count; i++) { ret = net_pkt_write(pkt, data, data_len); zassert_true(ret == 0, "Cannot append data"); pkt_data_len += data_len; } zassert_equal(pkt_data_len, count * data_len, "Data size mismatch"); total_len = net_pkt_get_len(pkt) - sizeof(struct net_ipv6_hdr); NET_DBG("Sending %zd bytes of which ext %d and data %d bytes", total_len, net_pkt_ipv6_ext_len(pkt), pkt_data_len); zassert_equal(total_len - net_pkt_ipv6_ext_len(pkt) - 8, pkt_data_len, "Packet size invalid"); NET_IPV6_HDR(pkt)->len = htons(total_len); net_pkt_cursor_init(pkt); net_pkt_set_overwrite(pkt, true); net_pkt_skip(pkt, net_pkt_ip_hdr_len(pkt) + net_pkt_ipv6_ext_len(pkt)); net_udp_finalize(pkt, false); test_failed = false; test_complete = false; ret = net_send_data(pkt); if (ret < 0) { NET_DBG("Cannot send test packet (%d)", ret); zassert_equal(ret, 0, "Cannot send"); } if (k_sem_take(&wait_data, WAIT_TIME)) { NET_DBG("Timeout while waiting interface data"); zassert_true(false, "Timeout"); } } static uint8_t ipv6_reass_frag1[] = { 0x60, 0x00, 0x00, 0x00, 0x04, 0xd8, 0x2c, 0x40, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x3a, 0x00, 0x00, 0x01, 0x7c, 0x8e, 0x53, 0x49, 0x81, 0x00, 0xda, 0x34, 0x28, 0x5b, 0x00, 0x01 }; static uint8_t ipv6_reass_frag2[] = { 0x60, 0x00, 0x00, 0x00, 0x00, 0x54, 0x2c, 0x40, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x20, 0x01, 0x0d, 0xb8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x3a, 0x00, 0x04, 0xd0, 0x7c, 0x8e, 0x53, 0x49 }; #define ECHO_REPLY_H_LEN 8 #define ECHO_REPLY_ID_OFFSET (NET_IPV6H_LEN + NET_IPV6_FRAGH_LEN + 4) #define ECHO_REPLY_SEQ_OFFSET (NET_IPV6H_LEN + NET_IPV6_FRAGH_LEN + 6) static uint16_t test_recv_payload_len = 1300U; static int handle_ipv6_echo_reply(struct net_icmp_ctx *ctx, struct net_pkt *pkt, struct net_icmp_ip_hdr *ip_hdr, struct net_icmp_hdr *icmp_hdr, void *user_data) { const struct net_ipv6_hdr *hdr = NET_IPV6_HDR(pkt); uint8_t verify_buf[NET_IPV6H_LEN]; size_t expected_pkt_length = NET_IPV6H_LEN + ECHO_REPLY_H_LEN + test_recv_payload_len; uint16_t expected_icmpv6_length = htons(test_recv_payload_len + ECHO_REPLY_H_LEN); uint16_t i; uint8_t expected_data = 0; ARG_UNUSED(ctx); ARG_UNUSED(ip_hdr); ARG_UNUSED(icmp_hdr); ARG_UNUSED(user_data); NET_DBG("Data %p received", pkt); zassert_equal(net_pkt_get_len(pkt), expected_pkt_length, "Invalid packet length"); /* Verify IPv6 header is valid */ zassert_equal(hdr->vtc, ipv6_reass_frag1[offsetof(struct net_ipv6_hdr, vtc)], "IPv6 header vtc mismatch"); zassert_equal(hdr->tcflow, ipv6_reass_frag1[offsetof(struct net_ipv6_hdr, tcflow)], "IPv6 header tcflow mismatch"); zassert_mem_equal(&hdr->flow, &ipv6_reass_frag1[offsetof(struct net_ipv6_hdr, flow)], sizeof(hdr->flow), "IPv6 header flow mismatch"); zassert_equal(hdr->len, expected_icmpv6_length, "IPv6 header len mismatch"); zassert_equal(hdr->nexthdr, IPPROTO_ICMPV6, "IPv6 header nexthdr mismatch"); zassert_equal(hdr->hop_limit, ipv6_reass_frag1[offsetof(struct net_ipv6_hdr, hop_limit)], "IPv6 header hop_limit mismatch"); zassert_mem_equal(hdr->src, &ipv6_reass_frag1[offsetof(struct net_ipv6_hdr, src)], NET_IPV6_ADDR_SIZE, "IPv6 header source IP mismatch"); zassert_mem_equal(hdr->dst, &ipv6_reass_frag1[offsetof(struct net_ipv6_hdr, dst)], NET_IPV6_ADDR_SIZE, "IPv6 header destination IP mismatch"); /* Verify Echo Reply header is valid */ net_pkt_cursor_init(pkt); net_pkt_read(pkt, verify_buf, NET_IPV6H_LEN); net_pkt_read(pkt, verify_buf, ECHO_REPLY_H_LEN); zassert_equal(verify_buf[0], NET_ICMPV6_ECHO_REPLY, "Echo reply header invalid type"); zassert_equal(verify_buf[1], 0, "Echo reply header invalid code"); zassert_equal(net_calc_chksum_icmpv6(pkt), 0, "Echo reply header invalid checksum"); zassert_mem_equal(verify_buf + 4, ipv6_reass_frag1 + ECHO_REPLY_ID_OFFSET, 2, "Echo reply header invalid identifier"); zassert_mem_equal(verify_buf + 6, ipv6_reass_frag1 + ECHO_REPLY_SEQ_OFFSET, 2, "Echo reply header invalid sequence"); /* Verify data is valid */ i = NET_IPV6H_LEN + ECHO_REPLY_H_LEN; while (i < net_pkt_get_len(pkt)) { uint8_t data; net_pkt_read_u8(pkt, &data); zassert_equal(data, expected_data, "Echo reply data verification failure"); expected_data++; i++; } k_sem_give(&wait_data); return NET_OK; } ZTEST(net_ipv6_fragment, test_recv_ipv6_fragment) { struct net_ipv6_hdr ipv6_hdr; struct net_pkt_cursor backup; struct net_pkt *pkt1; struct net_pkt *pkt2; uint16_t payload1_len; uint16_t payload2_len; uint8_t data; int ret; struct net_icmp_ctx ctx; ret = net_icmp_init_ctx(&ctx, NET_ICMPV6_ECHO_REPLY, 0, handle_ipv6_echo_reply); zassert_equal(ret, 0, "Cannot register %s handler (%d)", STRINGIFY(NET_ICMPV6_ECHO_REPLY), ret); /* Fragment 1 */ data = 0U; payload1_len = NET_IPV6_MTU - sizeof(ipv6_reass_frag1); payload2_len = test_recv_payload_len - payload1_len; pkt1 = net_pkt_alloc_with_buffer(iface1, NET_IPV6_MTU, AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt1, "packet"); net_pkt_set_family(pkt1, AF_INET6); net_pkt_set_ip_hdr_len(pkt1, sizeof(struct net_ipv6_hdr)); net_pkt_cursor_init(pkt1); memcpy(&ipv6_hdr, ipv6_reass_frag1, sizeof(struct net_ipv6_hdr)); ret = net_pkt_write(pkt1, ipv6_reass_frag1, sizeof(struct net_ipv6_hdr) + 1); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_cursor_backup(pkt1, &backup); ret = net_pkt_write(pkt1, ipv6_reass_frag1 + sizeof(struct net_ipv6_hdr) + 1, sizeof(ipv6_reass_frag1) - sizeof(struct net_ipv6_hdr) - 1); zassert_true(ret == 0, "IPv6 fragment header append failed"); while (payload1_len--) { ret = net_pkt_write_u8(pkt1, data++); zassert_true(ret == 0, "IPv6 header append failed"); } net_pkt_set_ipv6_hdr_prev(pkt1, offsetof(struct net_ipv6_hdr, nexthdr)); net_pkt_set_ipv6_fragment_start(pkt1, sizeof(struct net_ipv6_hdr)); net_pkt_set_overwrite(pkt1, true); net_pkt_cursor_restore(pkt1, &backup); ret = net_ipv6_handle_fragment_hdr(pkt1, &ipv6_hdr, NET_IPV6_NEXTHDR_FRAG); zassert_true(ret == NET_OK, "IPv6 frag1 reassembly failed"); /* Fragment 2 */ pkt2 = net_pkt_alloc_with_buffer(iface1, payload2_len + sizeof(ipv6_reass_frag2), AF_UNSPEC, 0, ALLOC_TIMEOUT); zassert_not_null(pkt2, "packet"); net_pkt_set_family(pkt2, AF_INET6); net_pkt_set_ip_hdr_len(pkt2, sizeof(struct net_ipv6_hdr)); net_pkt_cursor_init(pkt2); memcpy(&ipv6_hdr, ipv6_reass_frag2, sizeof(struct net_ipv6_hdr)); ret = net_pkt_write(pkt2, ipv6_reass_frag2, sizeof(struct net_ipv6_hdr) + 1); zassert_true(ret == 0, "IPv6 header append failed"); net_pkt_cursor_backup(pkt2, &backup); ret = net_pkt_write(pkt2, ipv6_reass_frag2 + sizeof(struct net_ipv6_hdr) + 1, sizeof(ipv6_reass_frag2) - sizeof(struct net_ipv6_hdr) - 1); zassert_true(ret == 0, "IPv6 fragment header append failed"); while (payload2_len--) { ret = net_pkt_write_u8(pkt2, data++); zassert_true(ret == 0, "IPv6 header append failed"); } net_pkt_set_ipv6_hdr_prev(pkt2, offsetof(struct net_ipv6_hdr, nexthdr)); net_pkt_set_ipv6_fragment_start(pkt2, sizeof(struct net_ipv6_hdr)); net_pkt_set_overwrite(pkt2, true); net_pkt_cursor_restore(pkt2, &backup); ret = net_ipv6_handle_fragment_hdr(pkt2, &ipv6_hdr, NET_IPV6_NEXTHDR_FRAG); zassert_true(ret == NET_OK, "IPv6 frag2 reassembly failed"); if (k_sem_take(&wait_data, WAIT_TIME)) { NET_DBG("Timeout while waiting interface data"); zassert_true(false, "Timeout"); } net_icmp_cleanup_ctx(&ctx); } ZTEST_SUITE(net_ipv6_fragment, NULL, test_setup, NULL, NULL, NULL);