William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 1 | #include "mock_syscall.hpp" |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 2 | #include "neighbor.hpp" |
| 3 | #include "util.hpp" |
| 4 | |
| 5 | #include <arpa/inet.h> |
| 6 | #include <linux/netlink.h> |
| 7 | #include <linux/rtnetlink.h> |
| 8 | #include <net/ethernet.h> |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 9 | |
| 10 | #include <cstring> |
| 11 | #include <stdexcept> |
| 12 | #include <string> |
| 13 | #include <system_error> |
| 14 | #include <vector> |
| 15 | |
| 16 | #include <gtest/gtest.h> |
| 17 | |
| 18 | namespace phosphor |
| 19 | { |
| 20 | namespace network |
| 21 | { |
| 22 | namespace detail |
| 23 | { |
| 24 | |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 25 | constexpr auto ifStr = "eth0"; |
| 26 | constexpr auto ifIdx = 1; |
| 27 | |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 28 | TEST(ParseNeighbor, NotNeighborType) |
| 29 | { |
| 30 | nlmsghdr hdr{}; |
| 31 | hdr.nlmsg_type = RTM_NEWLINK; |
| 32 | |
| 33 | std::vector<NeighborInfo> neighbors; |
| 34 | EXPECT_THROW(parseNeighbor(hdr, "", neighbors), std::runtime_error); |
| 35 | EXPECT_EQ(0, neighbors.size()); |
| 36 | } |
| 37 | |
| 38 | TEST(ParseNeighbor, SmallMsg) |
| 39 | { |
| 40 | nlmsghdr hdr{}; |
| 41 | hdr.nlmsg_type = RTM_NEWNEIGH; |
| 42 | std::string data = "1"; |
| 43 | |
| 44 | std::vector<NeighborInfo> neighbors; |
| 45 | EXPECT_THROW(parseNeighbor(hdr, data, neighbors), std::runtime_error); |
| 46 | EXPECT_EQ(0, neighbors.size()); |
| 47 | } |
| 48 | |
| 49 | TEST(ParseNeighbor, BadIf) |
| 50 | { |
| 51 | nlmsghdr hdr{}; |
| 52 | hdr.nlmsg_type = RTM_NEWNEIGH; |
| 53 | ndmsg msg{}; |
| 54 | std::string data; |
| 55 | data.append(reinterpret_cast<char*>(&msg), sizeof(msg)); |
| 56 | |
| 57 | std::vector<NeighborInfo> neighbors; |
| 58 | EXPECT_THROW(parseNeighbor(hdr, data, neighbors), std::system_error); |
| 59 | EXPECT_EQ(0, neighbors.size()); |
| 60 | } |
| 61 | |
| 62 | TEST(ParseNeighbor, NoAttrs) |
| 63 | { |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 64 | mock_clear(); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 65 | mock_addIF(ifStr, ifIdx); |
| 66 | |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 67 | nlmsghdr hdr{}; |
| 68 | hdr.nlmsg_type = RTM_NEWNEIGH; |
| 69 | ndmsg msg{}; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 70 | msg.ndm_ifindex = ifIdx; |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 71 | ASSERT_NE(0, msg.ndm_ifindex); |
| 72 | std::string data; |
| 73 | data.append(reinterpret_cast<char*>(&msg), sizeof(msg)); |
| 74 | |
| 75 | std::vector<NeighborInfo> neighbors; |
| 76 | EXPECT_THROW(parseNeighbor(hdr, data, neighbors), std::runtime_error); |
| 77 | EXPECT_EQ(0, neighbors.size()); |
| 78 | } |
| 79 | |
| 80 | TEST(ParseNeighbor, NoAddress) |
| 81 | { |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 82 | mock_clear(); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 83 | mock_addIF(ifStr, ifIdx); |
| 84 | |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 85 | nlmsghdr hdr{}; |
| 86 | hdr.nlmsg_type = RTM_NEWNEIGH; |
| 87 | ndmsg msg{}; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 88 | msg.ndm_ifindex = ifIdx; |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 89 | ASSERT_NE(0, msg.ndm_ifindex); |
| 90 | ether_addr mac = {{0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa}}; |
| 91 | rtattr lladdr{}; |
| 92 | lladdr.rta_len = RTA_LENGTH(sizeof(mac)); |
| 93 | lladdr.rta_type = NDA_LLADDR; |
| 94 | char lladdrbuf[RTA_ALIGN(lladdr.rta_len)]; |
| 95 | std::memset(lladdrbuf, '\0', sizeof(lladdrbuf)); |
| 96 | std::memcpy(lladdrbuf, &lladdr, sizeof(lladdr)); |
| 97 | std::memcpy(RTA_DATA(lladdrbuf), &mac, sizeof(mac)); |
| 98 | std::string data; |
| 99 | data.append(reinterpret_cast<char*>(&msg), sizeof(msg)); |
| 100 | data.append(reinterpret_cast<char*>(&lladdrbuf), sizeof(lladdrbuf)); |
| 101 | |
| 102 | std::vector<NeighborInfo> neighbors; |
| 103 | EXPECT_THROW(parseNeighbor(hdr, data, neighbors), std::runtime_error); |
| 104 | EXPECT_EQ(0, neighbors.size()); |
| 105 | } |
| 106 | |
| 107 | TEST(ParseNeighbor, NoMAC) |
| 108 | { |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 109 | mock_clear(); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 110 | mock_addIF(ifStr, ifIdx); |
| 111 | |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 112 | nlmsghdr hdr{}; |
| 113 | hdr.nlmsg_type = RTM_NEWNEIGH; |
| 114 | ndmsg msg{}; |
| 115 | msg.ndm_family = AF_INET; |
| 116 | msg.ndm_state = NUD_PERMANENT; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 117 | msg.ndm_ifindex = ifIdx; |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 118 | ASSERT_NE(0, msg.ndm_ifindex); |
| 119 | in_addr addr; |
| 120 | ASSERT_EQ(1, inet_pton(msg.ndm_family, "192.168.10.1", &addr)); |
| 121 | rtattr dst{}; |
| 122 | dst.rta_len = RTA_LENGTH(sizeof(addr)); |
| 123 | dst.rta_type = NDA_DST; |
| 124 | char dstbuf[RTA_ALIGN(dst.rta_len)]; |
| 125 | std::memset(dstbuf, '\0', sizeof(dstbuf)); |
| 126 | std::memcpy(dstbuf, &dst, sizeof(dst)); |
| 127 | std::memcpy(RTA_DATA(dstbuf), &addr, sizeof(addr)); |
| 128 | std::string data; |
| 129 | data.append(reinterpret_cast<char*>(&msg), sizeof(msg)); |
| 130 | data.append(reinterpret_cast<char*>(&dstbuf), sizeof(dstbuf)); |
| 131 | |
| 132 | std::vector<NeighborInfo> neighbors; |
| 133 | parseNeighbor(hdr, data, neighbors); |
| 134 | EXPECT_EQ(1, neighbors.size()); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 135 | EXPECT_EQ(ifStr, neighbors[0].interface); |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 136 | EXPECT_TRUE(neighbors[0].permanent); |
| 137 | EXPECT_FALSE(neighbors[0].mac); |
| 138 | EXPECT_TRUE(equal(addr, std::get<in_addr>(neighbors[0].address))); |
| 139 | } |
| 140 | |
| 141 | TEST(ParseNeighbor, Full) |
| 142 | { |
William A. Kennington III | 862275a | 2019-04-22 20:37:08 -0700 | [diff] [blame] | 143 | mock_clear(); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 144 | mock_addIF(ifStr, ifIdx); |
| 145 | |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 146 | nlmsghdr hdr{}; |
| 147 | hdr.nlmsg_type = RTM_NEWNEIGH; |
| 148 | ndmsg msg{}; |
| 149 | msg.ndm_family = AF_INET6; |
| 150 | msg.ndm_state = NUD_NOARP; |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 151 | msg.ndm_ifindex = ifIdx; |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 152 | ether_addr mac = {{0xff, 0xee, 0xdd, 0xcc, 0xbb, 0xaa}}; |
| 153 | rtattr lladdr{}; |
| 154 | lladdr.rta_len = RTA_LENGTH(sizeof(mac)); |
| 155 | lladdr.rta_type = NDA_LLADDR; |
| 156 | char lladdrbuf[RTA_ALIGN(lladdr.rta_len)]; |
| 157 | std::memset(lladdrbuf, '\0', sizeof(lladdrbuf)); |
| 158 | std::memcpy(lladdrbuf, &lladdr, sizeof(lladdr)); |
| 159 | std::memcpy(RTA_DATA(lladdrbuf), &mac, sizeof(mac)); |
| 160 | in6_addr addr; |
| 161 | ASSERT_EQ(1, inet_pton(msg.ndm_family, "fd00::1", &addr)); |
| 162 | rtattr dst{}; |
| 163 | dst.rta_len = RTA_LENGTH(sizeof(addr)); |
| 164 | dst.rta_type = NDA_DST; |
| 165 | char dstbuf[RTA_ALIGN(dst.rta_len)]; |
| 166 | std::memset(dstbuf, '\0', sizeof(dstbuf)); |
| 167 | std::memcpy(dstbuf, &dst, sizeof(dst)); |
| 168 | std::memcpy(RTA_DATA(dstbuf), &addr, sizeof(addr)); |
| 169 | std::string data; |
| 170 | data.append(reinterpret_cast<char*>(&msg), sizeof(msg)); |
| 171 | data.append(reinterpret_cast<char*>(&lladdrbuf), sizeof(lladdrbuf)); |
| 172 | data.append(reinterpret_cast<char*>(&dstbuf), sizeof(dstbuf)); |
| 173 | |
| 174 | std::vector<NeighborInfo> neighbors; |
| 175 | parseNeighbor(hdr, data, neighbors); |
| 176 | EXPECT_EQ(1, neighbors.size()); |
William A. Kennington III | ebb1ad0 | 2019-04-21 18:02:49 -0700 | [diff] [blame] | 177 | EXPECT_EQ(ifStr, neighbors[0].interface); |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 178 | EXPECT_FALSE(neighbors[0].permanent); |
| 179 | EXPECT_TRUE(neighbors[0].mac); |
William A. Kennington III | 6ca08d8 | 2019-04-20 16:04:18 -0700 | [diff] [blame] | 180 | EXPECT_TRUE(equal(mac, *neighbors[0].mac)); |
William A. Kennington III | c920bdb | 2019-04-19 14:23:06 -0700 | [diff] [blame] | 181 | EXPECT_TRUE(equal(addr, std::get<in6_addr>(neighbors[0].address))); |
| 182 | } |
| 183 | |
| 184 | } // namespace detail |
| 185 | } // namespace network |
| 186 | } // namespace phosphor |