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test/cmd/wget: fix the test

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Changes:
 * update to new tcp stack
 * fix zero values for ISS and IRS issue (see RFC 9293)

Signed-off-by: Mikhail Kshevetskiy <mikhail.kshevetskiy@iopsys.eu>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Mikhail Kshevetskiy 2024-12-28 13:46:33 +03:00 • committed by Tom Rini
parent bf962de97c
commit fa3ae38b83
2 changed files with 33 additions and 33 deletions
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4
arch/sandbox/include/asm/eth.h
View file

@ -77,6 +77,8 @@ typedef int sandbox_eth_tx_hand_f(struct udevice *dev, void *pkt,
* fake_host_hwaddr - MAC address of mocked machine
* fake_host_ipaddr - IP address of mocked machine
* disabled - Will not respond
* irs - tcp initial receive sequence
* iss - tcp initial send sequence
* recv_packet_buffer - buffers of the packet returned as received
* recv_packet_length - lengths of the packet returned as received
* recv_packets - number of packets returned
@ -87,6 +89,8 @@ struct eth_sandbox_priv {
uchar fake_host_hwaddr[ARP_HLEN];
struct in_addr fake_host_ipaddr;
bool disabled;
u32 irs;
u32 iss;
uchar * recv_packet_buffer[PKTBUFSRX];
int recv_packet_length[PKTBUFSRX];
int recv_packets;

62
test/cmd/wget.c
View file

@ -25,8 +25,7 @@
#define SHIFT_TO_TCPHDRLEN_FIELD(x) ((x) << 4)
#define LEN_B_TO_DW(x) ((x) >> 2)
int net_set_ack_options(union tcp_build_pkt *b);
#define GET_TCP_HDR_LEN_IN_BYTES(x) ((x) >> 2)
static int sb_arp_handler(struct udevice *dev, void *packet,
unsigned int len)
@ -64,12 +63,14 @@ static int sb_syn_handler(struct udevice *dev, void *packet,
eth_send = (void *)priv->recv_packet_buffer[priv->recv_packets];
memcpy(eth_send->et_dest, eth->et_src, ARP_HLEN);
memcpy(eth_send->et_src, priv->fake_host_hwaddr, ARP_HLEN);
priv->irs = ntohl(tcp->tcp_seq);
priv->iss = ~priv->irs; /* just to differ from irs */
eth_send->et_protlen = htons(PROT_IP);
tcp_send = (void *)eth_send + ETHER_HDR_SIZE;
tcp_send->tcp_src = tcp->tcp_dst;
tcp_send->tcp_dst = tcp->tcp_src;
tcp_send->tcp_seq = htonl(0);
tcp_send->tcp_ack = htonl(ntohl(tcp->tcp_seq) + 1);
tcp_send->tcp_seq = htonl(priv->iss);
tcp_send->tcp_ack = htonl(priv->irs + 1);
tcp_send->tcp_hlen = SHIFT_TO_TCPHDRLEN_FIELD(LEN_B_TO_DW(TCP_HDR_SIZE));
tcp_send->tcp_flags = TCP_SYN | TCP_ACK;
tcp_send->tcp_win = htons(PKTBUFSRX * TCP_MSS >> TCP_SCALE);
@ -104,13 +105,11 @@ static int sb_ack_handler(struct udevice *dev, void *packet,
void *data;
int pkt_len;
int payload_len = 0;
u32 tcp_seq, tcp_ack;
int tcp_data_len;
const char *payload1 = "HTTP/1.1 200 OK\r\n"
"Content-Length: 30\r\n\r\n\r\n"
"<html><body>Hi</body></html>\r\n";
union tcp_build_pkt *b = (union tcp_build_pkt *)tcp;
const int recv_payload_len = len - net_set_ack_options(b) - IP_HDR_SIZE - ETHER_HDR_SIZE;
static int next_seq;
const int bottom_payload_len = 10;
/* Don't allow the buffer to overrun */
if (priv->recv_packets >= PKTBUFSRX)
@ -125,35 +124,32 @@ static int sb_ack_handler(struct udevice *dev, void *packet,
tcp_send->tcp_dst = tcp->tcp_src;
data = (void *)tcp_send + IP_TCP_HDR_SIZE;
if (ntohl(tcp->tcp_seq) == 1 && ntohl(tcp->tcp_ack) == 1 && recv_payload_len == 0) {
// ignore ACK for three-way handshaking
return 0;
} else if (ntohl(tcp->tcp_seq) == 1 && ntohl(tcp->tcp_ack) == 1) {
// recv HTTP request message and reply top half data
tcp_send->tcp_seq = htonl(ntohl(tcp->tcp_ack));
tcp_send->tcp_ack = htonl(ntohl(tcp->tcp_seq) + recv_payload_len);
tcp_seq = ntohl(tcp->tcp_seq) - priv->irs;
tcp_ack = ntohl(tcp->tcp_ack) - priv->iss;
tcp_data_len = len - ETHER_HDR_SIZE - IP_HDR_SIZE - GET_TCP_HDR_LEN_IN_BYTES(tcp->tcp_hlen);
payload_len = strlen(payload1) - bottom_payload_len;
if (tcp->tcp_flags & TCP_FIN)
tcp_data_len++;
tcp_send->tcp_seq = htonl(ntohl(tcp->tcp_ack));
tcp_send->tcp_ack = htonl(ntohl(tcp->tcp_seq) + tcp_data_len);
if (tcp_seq == 1 && tcp_ack == 1) {
if (tcp_data_len == 0) {
/* no data, wait for GET request */
return -1;
}
/* reply to GET request */
payload_len = strlen(payload1);
memcpy(data, payload1, payload_len);
tcp_send->tcp_flags = TCP_ACK;
next_seq = ntohl(tcp_send->tcp_seq) + payload_len;
} else if (ntohl(tcp->tcp_ack) == next_seq) {
// reply bottom half data
const int top_payload_len = strlen(payload1) - bottom_payload_len;
tcp_send->tcp_seq = htonl(next_seq);
tcp_send->tcp_ack = htonl(ntohl(tcp->tcp_seq) + recv_payload_len);
payload_len = bottom_payload_len;
memcpy(data, payload1 + top_payload_len, payload_len);
tcp_send->tcp_flags = TCP_ACK;
} else {
// close connection
tcp_send->tcp_seq = htonl(ntohl(tcp->tcp_ack));
tcp_send->tcp_ack = htonl(ntohl(tcp->tcp_seq) + 1);
} else if (tcp_ack == 1 + strlen(payload1)) {
payload_len = 0;
tcp_send->tcp_flags = TCP_ACK | TCP_FIN;
} else if (tcp_ack == 2 + strlen(payload1)) {
payload_len = 0;
tcp_send->tcp_flags = TCP_ACK;
}
tcp_send->tcp_hlen = SHIFT_TO_TCPHDRLEN_FIELD(LEN_B_TO_DW(TCP_HDR_SIZE));
@ -217,7 +213,7 @@ static int net_test_wget(struct unit_test_state *uts)
env_set("ethrotate", "no");
env_set("loadaddr", "0x20000");
ut_assertok(run_command("wget ${loadaddr} 1.1.2.2:/index.html", 0));
ut_assert_nextline("HTTP/1.1 200 OK");
ut_assert_nextline_empty();
ut_assert_nextline("Packets received 5, Transfer Successful");
ut_assert_nextline("Bytes transferred = 32 (20 hex)");