Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* |
| 3 | * Copyright (c) 2022 Linaro |
| 4 | * |
| 5 | * (C) Copyright 2022 |
| 6 | * Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> |
| 7 | */ |
| 8 | |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 9 | #include <command.h> |
| 10 | #include <dm.h> |
| 11 | #include <env.h> |
| 12 | #include <fdtdec.h> |
| 13 | #include <log.h> |
| 14 | #include <malloc.h> |
| 15 | #include <net.h> |
| 16 | #include <net/tcp.h> |
| 17 | #include <net/wget.h> |
| 18 | #include <asm/eth.h> |
| 19 | #include <dm/test.h> |
| 20 | #include <dm/device-internal.h> |
| 21 | #include <dm/uclass-internal.h> |
Jerome Forissier | 9787192 | 2024-11-15 17:45:14 +0100 | [diff] [blame] | 22 | #include <test/cmd.h> |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 23 | #include <test/test.h> |
| 24 | #include <test/ut.h> |
| 25 | |
| 26 | #define SHIFT_TO_TCPHDRLEN_FIELD(x) ((x) << 4) |
| 27 | #define LEN_B_TO_DW(x) ((x) >> 2) |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 28 | #define GET_TCP_HDR_LEN_IN_BYTES(x) ((x) >> 2) |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 29 | |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 30 | static int sb_arp_handler(struct udevice *dev, void *packet, |
| 31 | unsigned int len) |
| 32 | { |
| 33 | struct eth_sandbox_priv *priv = dev_get_priv(dev); |
| 34 | struct arp_hdr *arp = packet + ETHER_HDR_SIZE; |
| 35 | int ret = 0; |
| 36 | |
| 37 | if (ntohs(arp->ar_op) == ARPOP_REQUEST) { |
| 38 | priv->fake_host_ipaddr = net_read_ip(&arp->ar_spa); |
| 39 | |
| 40 | ret = sandbox_eth_recv_arp_req(dev); |
| 41 | if (ret) |
| 42 | return ret; |
| 43 | ret = sandbox_eth_arp_req_to_reply(dev, packet, len); |
| 44 | return ret; |
| 45 | } |
| 46 | |
| 47 | return -EPROTONOSUPPORT; |
| 48 | } |
| 49 | |
| 50 | static int sb_syn_handler(struct udevice *dev, void *packet, |
| 51 | unsigned int len) |
| 52 | { |
| 53 | struct eth_sandbox_priv *priv = dev_get_priv(dev); |
| 54 | struct ethernet_hdr *eth = packet; |
| 55 | struct ip_tcp_hdr *tcp = packet + ETHER_HDR_SIZE; |
| 56 | struct ethernet_hdr *eth_send; |
| 57 | struct ip_tcp_hdr *tcp_send; |
| 58 | |
| 59 | /* Don't allow the buffer to overrun */ |
| 60 | if (priv->recv_packets >= PKTBUFSRX) |
| 61 | return 0; |
| 62 | |
| 63 | eth_send = (void *)priv->recv_packet_buffer[priv->recv_packets]; |
| 64 | memcpy(eth_send->et_dest, eth->et_src, ARP_HLEN); |
| 65 | memcpy(eth_send->et_src, priv->fake_host_hwaddr, ARP_HLEN); |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 66 | priv->irs = ntohl(tcp->tcp_seq); |
| 67 | priv->iss = ~priv->irs; /* just to differ from irs */ |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 68 | eth_send->et_protlen = htons(PROT_IP); |
| 69 | tcp_send = (void *)eth_send + ETHER_HDR_SIZE; |
| 70 | tcp_send->tcp_src = tcp->tcp_dst; |
| 71 | tcp_send->tcp_dst = tcp->tcp_src; |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 72 | tcp_send->tcp_seq = htonl(priv->iss); |
| 73 | tcp_send->tcp_ack = htonl(priv->irs + 1); |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 74 | tcp_send->tcp_hlen = SHIFT_TO_TCPHDRLEN_FIELD(LEN_B_TO_DW(TCP_HDR_SIZE)); |
| 75 | tcp_send->tcp_flags = TCP_SYN | TCP_ACK; |
| 76 | tcp_send->tcp_win = htons(PKTBUFSRX * TCP_MSS >> TCP_SCALE); |
| 77 | tcp_send->tcp_xsum = 0; |
| 78 | tcp_send->tcp_ugr = 0; |
| 79 | tcp_send->tcp_xsum = tcp_set_pseudo_header((uchar *)tcp_send, |
| 80 | tcp->ip_src, |
| 81 | tcp->ip_dst, |
| 82 | TCP_HDR_SIZE, |
| 83 | IP_TCP_HDR_SIZE); |
| 84 | net_set_ip_header((uchar *)tcp_send, |
| 85 | tcp->ip_src, |
| 86 | tcp->ip_dst, |
| 87 | IP_TCP_HDR_SIZE, |
| 88 | IPPROTO_TCP); |
| 89 | |
| 90 | priv->recv_packet_length[priv->recv_packets] = |
| 91 | ETHER_HDR_SIZE + IP_TCP_HDR_SIZE; |
| 92 | ++priv->recv_packets; |
| 93 | |
| 94 | return 0; |
| 95 | } |
| 96 | |
| 97 | static int sb_ack_handler(struct udevice *dev, void *packet, |
| 98 | unsigned int len) |
| 99 | { |
| 100 | struct eth_sandbox_priv *priv = dev_get_priv(dev); |
| 101 | struct ethernet_hdr *eth = packet; |
| 102 | struct ip_tcp_hdr *tcp = packet + ETHER_HDR_SIZE; |
| 103 | struct ethernet_hdr *eth_send; |
| 104 | struct ip_tcp_hdr *tcp_send; |
| 105 | void *data; |
| 106 | int pkt_len; |
| 107 | int payload_len = 0; |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 108 | u32 tcp_seq, tcp_ack; |
| 109 | int tcp_data_len; |
Mikhail Kshevetskiy | 05eb36e | 2024-12-28 13:46:34 +0300 | [diff] [blame] | 110 | const char *payload1 = |
| 111 | /* response status line */ |
| 112 | "HTTP/1.1 200 OK\r\n" |
| 113 | /* response header fields */ |
| 114 | "Date: Mon, 23 Dec 2024 05:18:23 GMT\r\n" |
| 115 | "Server: Apache/2.4.62 (Debian)\r\n" |
| 116 | "Last-Modified: Mon, 23 Dec 2024 05:04:50 GMT\r\n" |
| 117 | "ETag: \"1d-629e8efb09e7b\"\r\n" |
| 118 | "Accept-Ranges: bytes\r\n" |
| 119 | "Content-Length: 29\r\n" |
| 120 | "Connection: close\r\n" |
| 121 | "Content-Type: text/html\r\n" |
| 122 | /* response header fields end marker */ |
| 123 | "\r\n" |
| 124 | /* file data (for HTTP GET requests) */ |
| 125 | "<html><body>Hi</body></html>\n"; |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 126 | |
| 127 | /* Don't allow the buffer to overrun */ |
| 128 | if (priv->recv_packets >= PKTBUFSRX) |
| 129 | return 0; |
| 130 | |
| 131 | eth_send = (void *)priv->recv_packet_buffer[priv->recv_packets]; |
| 132 | memcpy(eth_send->et_dest, eth->et_src, ARP_HLEN); |
| 133 | memcpy(eth_send->et_src, priv->fake_host_hwaddr, ARP_HLEN); |
| 134 | eth_send->et_protlen = htons(PROT_IP); |
| 135 | tcp_send = (void *)eth_send + ETHER_HDR_SIZE; |
| 136 | tcp_send->tcp_src = tcp->tcp_dst; |
| 137 | tcp_send->tcp_dst = tcp->tcp_src; |
| 138 | data = (void *)tcp_send + IP_TCP_HDR_SIZE; |
| 139 | |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 140 | tcp_seq = ntohl(tcp->tcp_seq) - priv->irs; |
| 141 | tcp_ack = ntohl(tcp->tcp_ack) - priv->iss; |
| 142 | tcp_data_len = len - ETHER_HDR_SIZE - IP_HDR_SIZE - GET_TCP_HDR_LEN_IN_BYTES(tcp->tcp_hlen); |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 143 | |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 144 | if (tcp->tcp_flags & TCP_FIN) |
| 145 | tcp_data_len++; |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 146 | |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 147 | tcp_send->tcp_seq = htonl(ntohl(tcp->tcp_ack)); |
| 148 | tcp_send->tcp_ack = htonl(ntohl(tcp->tcp_seq) + tcp_data_len); |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 149 | |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 150 | if (tcp_seq == 1 && tcp_ack == 1) { |
| 151 | if (tcp_data_len == 0) { |
Mikhail Kshevetskiy | 05eb36e | 2024-12-28 13:46:34 +0300 | [diff] [blame] | 152 | /* no data, wait for GET/HEAD request */ |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 153 | return -1; |
| 154 | } |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 155 | |
Mikhail Kshevetskiy | 05eb36e | 2024-12-28 13:46:34 +0300 | [diff] [blame] | 156 | /* reply to GET/HEAD request */ |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 157 | payload_len = strlen(payload1); |
| 158 | memcpy(data, payload1, payload_len); |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 159 | tcp_send->tcp_flags = TCP_ACK; |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 160 | } else if (tcp_ack == 1 + strlen(payload1)) { |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 161 | payload_len = 0; |
| 162 | tcp_send->tcp_flags = TCP_ACK | TCP_FIN; |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 163 | } else if (tcp_ack == 2 + strlen(payload1)) { |
| 164 | payload_len = 0; |
| 165 | tcp_send->tcp_flags = TCP_ACK; |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 166 | } |
| 167 | |
| 168 | tcp_send->tcp_hlen = SHIFT_TO_TCPHDRLEN_FIELD(LEN_B_TO_DW(TCP_HDR_SIZE)); |
| 169 | tcp_send->tcp_win = htons(PKTBUFSRX * TCP_MSS >> TCP_SCALE); |
| 170 | tcp_send->tcp_xsum = 0; |
| 171 | tcp_send->tcp_ugr = 0; |
| 172 | pkt_len = IP_TCP_HDR_SIZE + payload_len; |
| 173 | tcp_send->tcp_xsum = tcp_set_pseudo_header((uchar *)tcp_send, |
| 174 | tcp->ip_src, |
| 175 | tcp->ip_dst, |
| 176 | pkt_len - IP_HDR_SIZE, |
| 177 | pkt_len); |
| 178 | net_set_ip_header((uchar *)tcp_send, |
| 179 | tcp->ip_src, |
| 180 | tcp->ip_dst, |
| 181 | pkt_len, |
| 182 | IPPROTO_TCP); |
| 183 | |
Yasuharu Shibata | 0c4813d | 2024-08-14 21:41:07 +0900 | [diff] [blame] | 184 | priv->recv_packet_length[priv->recv_packets] = |
| 185 | ETHER_HDR_SIZE + IP_TCP_HDR_SIZE + payload_len; |
| 186 | ++priv->recv_packets; |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 187 | |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | static int sb_http_handler(struct udevice *dev, void *packet, |
| 192 | unsigned int len) |
| 193 | { |
| 194 | struct ethernet_hdr *eth = packet; |
| 195 | struct ip_hdr *ip; |
| 196 | struct ip_tcp_hdr *tcp; |
| 197 | |
| 198 | if (ntohs(eth->et_protlen) == PROT_ARP) { |
| 199 | return sb_arp_handler(dev, packet, len); |
| 200 | } else if (ntohs(eth->et_protlen) == PROT_IP) { |
| 201 | ip = packet + ETHER_HDR_SIZE; |
| 202 | if (ip->ip_p == IPPROTO_TCP) { |
| 203 | tcp = packet + ETHER_HDR_SIZE; |
| 204 | if (tcp->tcp_flags == TCP_SYN) |
| 205 | return sb_syn_handler(dev, packet, len); |
| 206 | else if (tcp->tcp_flags & TCP_ACK && !(tcp->tcp_flags & TCP_SYN)) |
| 207 | return sb_ack_handler(dev, packet, len); |
| 208 | return 0; |
| 209 | } |
| 210 | return -EPROTONOSUPPORT; |
| 211 | } |
| 212 | |
| 213 | return -EPROTONOSUPPORT; |
| 214 | } |
| 215 | |
| 216 | static int net_test_wget(struct unit_test_state *uts) |
| 217 | { |
Jerome Forissier | 9787192 | 2024-11-15 17:45:14 +0100 | [diff] [blame] | 218 | char *prev_ethact = env_get("ethact"); |
| 219 | char *prev_ethrotate = env_get("ethrotate"); |
| 220 | char *prev_loadaddr = env_get("loadaddr"); |
| 221 | |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 222 | sandbox_eth_set_tx_handler(0, sb_http_handler); |
| 223 | sandbox_eth_set_priv(0, uts); |
| 224 | |
| 225 | env_set("ethact", "eth@10002000"); |
| 226 | env_set("ethrotate", "no"); |
| 227 | env_set("loadaddr", "0x20000"); |
| 228 | ut_assertok(run_command("wget ${loadaddr} 1.1.2.2:/index.html", 0)); |
Mikhail Kshevetskiy | e8a0ebc | 2024-12-28 13:46:33 +0300 | [diff] [blame] | 229 | ut_assert_nextline_empty(); |
Simon Glass | 5622825 | 2024-08-22 07:57:58 -0600 | [diff] [blame] | 230 | ut_assert_nextline("Packets received 5, Transfer Successful"); |
Mikhail Kshevetskiy | 05eb36e | 2024-12-28 13:46:34 +0300 | [diff] [blame] | 231 | ut_assert_nextline("Bytes transferred = 29 (1d hex)"); |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 232 | |
| 233 | sandbox_eth_set_tx_handler(0, NULL); |
| 234 | |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 235 | run_command("md5sum ${loadaddr} ${filesize}", 0); |
Mikhail Kshevetskiy | 05eb36e | 2024-12-28 13:46:34 +0300 | [diff] [blame] | 236 | ut_assert_nextline("md5 for 00020000 ... 0002001c ==> 847d5e7320a27462e90bc1ed75eb8cd8"); |
Simon Glass | c579bd4 | 2024-08-22 07:58:03 -0600 | [diff] [blame] | 237 | ut_assert_console_end(); |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 238 | |
Jerome Forissier | 9787192 | 2024-11-15 17:45:14 +0100 | [diff] [blame] | 239 | env_set("ethact", prev_ethact); |
| 240 | env_set("ethrotate", prev_ethrotate); |
| 241 | env_set("loadaddr", prev_loadaddr); |
| 242 | |
Ying-Chun Liu (PaulLiu) | d623b47 | 2022-11-08 14:17:31 +0800 | [diff] [blame] | 243 | return 0; |
| 244 | } |
Jerome Forissier | 9787192 | 2024-11-15 17:45:14 +0100 | [diff] [blame] | 245 | CMD_TEST(net_test_wget, UTF_CONSOLE); |