1 | #include "test_ip6.h"
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2 |
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3 | #include "lwip/ethip6.h"
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4 | #include "lwip/ip6.h"
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5 | #include "lwip/inet_chksum.h"
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6 | #include "lwip/nd6.h"
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7 | #include "lwip/stats.h"
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8 | #include "lwip/prot/ethernet.h"
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9 | #include "lwip/prot/ip.h"
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10 | #include "lwip/prot/ip6.h"
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11 |
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12 | #include "lwip/tcpip.h"
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13 |
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14 | #if LWIP_IPV6 /* allow to build the unit tests without IPv6 support */
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15 |
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16 | static struct netif test_netif6;
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17 | static int linkoutput_ctr;
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18 |
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19 | static err_t
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20 | default_netif_linkoutput(struct netif *netif, struct pbuf *p)
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21 | {
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22 | fail_unless(netif == &test_netif6);
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23 | fail_unless(p != NULL);
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24 | linkoutput_ctr++;
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25 | return ERR_OK;
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26 | }
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27 |
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28 | static err_t
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29 | default_netif_init(struct netif *netif)
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30 | {
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31 | fail_unless(netif != NULL);
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32 | netif->linkoutput = default_netif_linkoutput;
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33 | netif->output_ip6 = ethip6_output;
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34 | netif->mtu = 1500;
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35 | netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHERNET | NETIF_FLAG_MLD6;
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36 | netif->hwaddr_len = ETH_HWADDR_LEN;
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37 | return ERR_OK;
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38 | }
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39 |
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40 | static void
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41 | default_netif_add(void)
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42 | {
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43 | struct netif *n;
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44 | fail_unless(netif_default == NULL);
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45 | n = netif_add_noaddr(&test_netif6, NULL, default_netif_init, NULL);
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46 | fail_unless(n == &test_netif6);
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47 | netif_set_default(&test_netif6);
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48 | }
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49 |
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50 | static void
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51 | default_netif_remove(void)
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52 | {
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53 | fail_unless(netif_default == &test_netif6);
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54 | netif_remove(&test_netif6);
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55 | }
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56 |
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57 | static void
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58 | ip6_test_handle_timers(int count)
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59 | {
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60 | int i;
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61 | for (i = 0; i < count; i++) {
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62 | nd6_tmr();
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63 | }
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64 | }
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65 |
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66 | /* Setups/teardown functions */
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67 |
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68 | static void
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69 | ip6_setup(void)
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70 | {
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71 | default_netif_add();
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72 | lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
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73 | }
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74 |
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75 | static void
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76 | ip6_teardown(void)
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77 | {
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78 | if (netif_list->loop_first != NULL) {
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79 | pbuf_free(netif_list->loop_first);
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80 | netif_list->loop_first = NULL;
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81 | }
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82 | netif_list->loop_last = NULL;
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83 | /* poll until all memory is released... */
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84 | tcpip_thread_poll_one();
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85 | default_netif_remove();
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86 | lwip_check_ensure_no_alloc(SKIP_POOL(MEMP_SYS_TIMEOUT));
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87 | }
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88 |
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89 |
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90 | /* Test functions */
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91 |
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92 | static void
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93 | test_ip6_ll_addr_iter(int expected_ctr1, int expected_ctr2)
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94 | {
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95 | fail_unless(linkoutput_ctr == 0);
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96 |
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97 | /* test that nothing is sent with link uo but netif down */
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98 | netif_set_link_up(&test_netif6);
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99 | ip6_test_handle_timers(500);
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100 | fail_unless(linkoutput_ctr == 0);
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101 | netif_set_link_down(&test_netif6);
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102 | fail_unless(linkoutput_ctr == 0);
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103 |
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104 | /* test that nothing is sent with link down but netif up */
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105 | netif_set_up(&test_netif6);
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106 | ip6_test_handle_timers(500);
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107 | fail_unless(linkoutput_ctr == 0);
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108 | netif_set_down(&test_netif6);
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109 | fail_unless(linkoutput_ctr == 0);
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110 |
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111 | /* test what is sent with link up + netif up */
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112 | netif_set_link_up(&test_netif6);
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113 | netif_set_up(&test_netif6);
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114 | ip6_test_handle_timers(500);
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115 | fail_unless(linkoutput_ctr == expected_ctr1);
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116 | netif_set_down(&test_netif6);
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117 | netif_set_link_down(&test_netif6);
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118 | fail_unless(linkoutput_ctr == expected_ctr1);
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119 | linkoutput_ctr = 0;
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120 |
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121 | netif_set_up(&test_netif6);
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122 | netif_set_link_up(&test_netif6);
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123 | ip6_test_handle_timers(500);
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124 | fail_unless(linkoutput_ctr == expected_ctr2);
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125 | netif_set_link_down(&test_netif6);
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126 | netif_set_down(&test_netif6);
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127 | fail_unless(linkoutput_ctr == expected_ctr2);
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128 | linkoutput_ctr = 0;
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129 | }
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130 |
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131 | START_TEST(test_ip6_ll_addr)
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132 | {
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133 | LWIP_UNUSED_ARG(_i);
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134 |
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135 | /* test without link-local address */
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136 | test_ip6_ll_addr_iter(0, 0);
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137 |
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138 | /* test with link-local address */
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139 | netif_create_ip6_linklocal_address(&test_netif6, 1);
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140 | test_ip6_ll_addr_iter(3 + LWIP_IPV6_DUP_DETECT_ATTEMPTS + LWIP_IPV6_MLD, 3);
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141 | }
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142 | END_TEST
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143 |
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144 | START_TEST(test_ip6_aton_ipv4mapped)
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145 | {
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146 | int ret;
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147 | ip_addr_t addr;
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148 | ip6_addr_t addr6;
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149 | const ip_addr_t addr_expected = IPADDR6_INIT_HOST(0, 0, 0xFFFF, 0xD4CC65D2);
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150 | const char *full_ipv6_addr = "0:0:0:0:0:FFFF:D4CC:65D2";
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151 | const char *shortened_ipv6_addr = "::FFFF:D4CC:65D2";
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152 | const char *full_ipv4_mapped_addr = "0:0:0:0:0:FFFF:212.204.101.210";
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153 | const char *shortened_ipv4_mapped_addr = "::FFFF:212.204.101.210";
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154 | const char *bogus_ipv4_mapped_addr = "::FFFF:212.204.101.2101";
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155 | LWIP_UNUSED_ARG(_i);
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156 |
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157 | /* check IPv6 representation */
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158 | memset(&addr6, 0, sizeof(addr6));
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159 | ret = ip6addr_aton(full_ipv6_addr, &addr6);
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160 | fail_unless(ret == 1);
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161 | fail_unless(memcmp(&addr6, &addr_expected, 16) == 0);
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162 | memset(&addr, 0, sizeof(addr));
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163 | ret = ipaddr_aton(full_ipv6_addr, &addr);
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164 | fail_unless(ret == 1);
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165 | fail_unless(memcmp(&addr, &addr_expected, 16) == 0);
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166 |
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167 | /* check shortened IPv6 representation */
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168 | memset(&addr6, 0, sizeof(addr6));
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169 | ret = ip6addr_aton(shortened_ipv6_addr, &addr6);
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170 | fail_unless(ret == 1);
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171 | fail_unless(memcmp(&addr6, &addr_expected, 16) == 0);
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172 | memset(&addr, 0, sizeof(addr));
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173 | ret = ipaddr_aton(shortened_ipv6_addr, &addr);
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174 | fail_unless(ret == 1);
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175 | fail_unless(memcmp(&addr, &addr_expected, 16) == 0);
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176 |
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177 | /* checked shortened mixed representation */
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178 | memset(&addr6, 0, sizeof(addr6));
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179 | ret = ip6addr_aton(shortened_ipv4_mapped_addr, &addr6);
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180 | fail_unless(ret == 1);
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181 | fail_unless(memcmp(&addr6, &addr_expected, 16) == 0);
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182 | memset(&addr, 0, sizeof(addr));
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183 | ret = ipaddr_aton(shortened_ipv4_mapped_addr, &addr);
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184 | fail_unless(ret == 1);
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185 | fail_unless(memcmp(&addr, &addr_expected, 16) == 0);
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186 |
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187 | /* checked mixed representation */
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188 | memset(&addr6, 0, sizeof(addr6));
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189 | ret = ip6addr_aton(full_ipv4_mapped_addr, &addr6);
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190 | fail_unless(ret == 1);
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191 | fail_unless(memcmp(&addr6, &addr_expected, 16) == 0);
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192 | memset(&addr, 0, sizeof(addr));
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193 | ret = ipaddr_aton(full_ipv4_mapped_addr, &addr);
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194 | fail_unless(ret == 1);
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195 | fail_unless(memcmp(&addr, &addr_expected, 16) == 0);
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196 |
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197 | /* checked bogus mixed representation */
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198 | memset(&addr6, 0, sizeof(addr6));
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199 | ret = ip6addr_aton(bogus_ipv4_mapped_addr, &addr6);
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200 | fail_unless(ret == 0);
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201 | memset(&addr, 0, sizeof(addr));
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202 | ret = ipaddr_aton(bogus_ipv4_mapped_addr, &addr);
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203 | fail_unless(ret == 0);
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204 | }
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205 | END_TEST
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206 |
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207 | START_TEST(test_ip6_ntoa_ipv4mapped)
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208 | {
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209 | const ip_addr_t addr = IPADDR6_INIT_HOST(0, 0, 0xFFFF, 0xD4CC65D2);
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210 | char buf[128];
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211 | char *str;
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212 | LWIP_UNUSED_ARG(_i);
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213 |
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214 | str = ip6addr_ntoa_r(ip_2_ip6(&addr), buf, sizeof(buf));
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215 | fail_unless(str == buf);
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216 | fail_unless(!strcmp(str, "::FFFF:212.204.101.210"));
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217 | }
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218 | END_TEST
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219 |
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220 | struct test_addr_and_str {
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221 | ip_addr_t addr;
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222 | const char *str;
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223 | };
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224 |
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225 | START_TEST(test_ip6_ntoa)
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226 | {
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227 | struct test_addr_and_str tests[] = {
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228 | {IPADDR6_INIT_HOST(0xfe800000, 0x00000000, 0xb2a1a2ff, 0xfea3a4a5), "FE80::B2A1:A2FF:FEA3:A4A5"}, /* test shortened zeros */
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229 | {IPADDR6_INIT_HOST(0xfe800000, 0xff000000, 0xb2a1a2ff, 0xfea3a4a5), "FE80:0:FF00:0:B2A1:A2FF:FEA3:A4A5"}, /* don't omit single zero blocks */
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230 | {IPADDR6_INIT_HOST(0xfe800000, 0xff000000, 0xb2000000, 0x0000a4a5), "FE80:0:FF00:0:B200::A4A5"}, /* omit longest zero block */
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231 | };
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232 | char buf[128];
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233 | char *str;
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234 | size_t i;
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235 | LWIP_UNUSED_ARG(_i);
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236 |
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237 | for (i = 0; i < LWIP_ARRAYSIZE(tests); i++) {
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238 | str = ip6addr_ntoa_r(ip_2_ip6(&tests[i].addr), buf, sizeof(buf));
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239 | fail_unless(str == buf);
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240 | fail_unless(!strcmp(str, tests[i].str));
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241 | }
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242 | }
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243 | END_TEST
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244 |
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245 | START_TEST(test_ip6_lladdr)
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246 | {
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247 | u8_t zeros[128];
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248 | const u8_t test_mac_addr[6] = {0xb0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5};
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249 | const u32_t expected_ip6_addr_1[4] = {PP_HTONL(0xfe800000), 0, PP_HTONL(0xb2a1a2ff), PP_HTONL(0xfea3a4a5)};
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250 | const u32_t expected_ip6_addr_2[4] = {PP_HTONL(0xfe800000), 0, PP_HTONL(0x0000b0a1), PP_HTONL(0xa2a3a4a5)};
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251 | LWIP_UNUSED_ARG(_i);
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252 | memset(zeros, 0, sizeof(zeros));
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253 |
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254 | fail_unless(test_netif6.hwaddr_len == 6);
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255 | fail_unless(!memcmp(test_netif6.hwaddr, zeros, 6));
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256 |
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257 | fail_unless(test_netif6.ip6_addr_state[0] == 0);
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258 | fail_unless(!memcmp(netif_ip6_addr(&test_netif6, 0), zeros, sizeof(ip6_addr_t)));
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259 |
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260 | /* set specific mac addr */
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261 | memcpy(test_netif6.hwaddr, test_mac_addr, 6);
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262 |
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263 | /* create link-local addr based on mac (EUI-48) */
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264 | netif_create_ip6_linklocal_address(&test_netif6, 1);
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265 | fail_unless(IP_IS_V6(&test_netif6.ip6_addr[0]));
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266 | fail_unless(!memcmp(&netif_ip6_addr(&test_netif6, 0)->addr, expected_ip6_addr_1, 16));
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267 | #if LWIP_IPV6_SCOPES
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268 | fail_unless(netif_ip6_addr(&test_netif6, 0)->zone == (test_netif6.num + 1));
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269 | #endif
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270 | /* reset address */
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271 | memset(&test_netif6.ip6_addr[0], 0, sizeof(ip6_addr_t));
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272 | test_netif6.ip6_addr_state[0] = 0;
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273 |
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274 | /* create link-local addr based interface ID */
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275 | netif_create_ip6_linklocal_address(&test_netif6, 0);
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276 | fail_unless(IP_IS_V6(&test_netif6.ip6_addr[0]));
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277 | fail_unless(!memcmp(&netif_ip6_addr(&test_netif6, 0)->addr, expected_ip6_addr_2, 16));
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278 | #if LWIP_IPV6_SCOPES
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279 | fail_unless(netif_ip6_addr(&test_netif6, 0)->zone == (test_netif6.num + 1));
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280 | #endif
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281 | /* reset address */
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282 | memset(&test_netif6.ip6_addr[0], 0, sizeof(ip6_addr_t));
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283 | test_netif6.ip6_addr_state[0] = 0;
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284 |
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285 | /* reset mac address */
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286 | memset(&test_netif6.hwaddr, 0, sizeof(test_netif6.hwaddr));
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287 | }
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288 | END_TEST
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289 |
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290 | /** Create the suite including all tests for this module */
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291 | Suite *
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292 | ip6_suite(void)
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293 | {
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294 | testfunc tests[] = {
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295 | TESTFUNC(test_ip6_ll_addr),
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296 | TESTFUNC(test_ip6_aton_ipv4mapped),
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297 | TESTFUNC(test_ip6_ntoa_ipv4mapped),
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298 | TESTFUNC(test_ip6_ntoa),
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299 | TESTFUNC(test_ip6_lladdr)
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300 | };
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301 | return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), ip6_setup, ip6_teardown);
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302 | }
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303 |
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304 | #else /* LWIP_IPV6 */
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305 |
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306 | /* allow to build the unit tests without IPv6 support */
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307 | START_TEST(test_ip6_dummy)
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308 | {
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309 | LWIP_UNUSED_ARG(_i);
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310 | }
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311 | END_TEST
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312 |
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313 | Suite *
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314 | ip6_suite(void)
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315 | {
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316 | testfunc tests[] = {
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317 | TESTFUNC(test_ip6_dummy),
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318 | };
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319 | return create_suite("IPv6", tests, sizeof(tests)/sizeof(testfunc), NULL, NULL);
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320 | }
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321 | #endif /* LWIP_IPV6 */
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