diff options
| author | Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org> | 2022-11-08 09:17:28 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2022-11-28 21:06:39 +0300 |
| commit | a3bf193bf4ea8703bcf96b1a34713fb2ae87aa39 (patch) | |
| tree | 973568df1e1123da531a61776a1040dc982abc02 /net/net.c | |
| parent | 3cdbbe52f70ff4fdd7aa9b66de2040b9f304c0b2 (diff) | |
| download | u-boot-a3bf193bf4ea8703bcf96b1a34713fb2ae87aa39.tar.xz | |
net: Add TCP protocol
Currently file transfers are done using tftp or NFS both
over udp. This requires a request to be sent from client
(u-boot) to the boot server.
The current standard is TCP with selective acknowledgment.
Signed-off-by: Duncan Hare <DH@Synoia.com>
Signed-off-by: Duncan Hare <DuncanCHare@yahoo.com>
Signed-off-by: Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Diffstat (limited to 'net/net.c')
| -rw-r--r-- | net/net.c | 30 |
1 files changed, 30 insertions, 0 deletions
@@ -117,6 +117,7 @@ #if defined(CONFIG_CMD_WOL) #include "wol.h" #endif +#include <net/tcp.h> /** BOOTP EXTENTIONS **/ @@ -387,6 +388,8 @@ int net_init(void) /* Only need to setup buffer pointers once. */ first_call = 0; + if (IS_ENABLED(CONFIG_PROT_TCP)) + tcp_set_tcp_state(TCP_CLOSED); } return net_init_loop(); @@ -833,6 +836,16 @@ int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, int sport, IPPROTO_UDP, 0, 0, 0); } +#if defined(CONFIG_PROT_TCP) +int net_send_tcp_packet(int payload_len, int dport, int sport, u8 action, + u32 tcp_seq_num, u32 tcp_ack_num) +{ + return net_send_ip_packet(net_server_ethaddr, net_server_ip, dport, + sport, payload_len, IPPROTO_TCP, action, + tcp_seq_num, tcp_ack_num); +} +#endif + int net_send_ip_packet(uchar *ether, struct in_addr dest, int dport, int sport, int payload_len, int proto, u8 action, u32 tcp_seq_num, u32 tcp_ack_num) @@ -864,6 +877,14 @@ int net_send_ip_packet(uchar *ether, struct in_addr dest, int dport, int sport, payload_len); pkt_hdr_size = eth_hdr_size + IP_UDP_HDR_SIZE; break; +#if defined(CONFIG_PROT_TCP) + case IPPROTO_TCP: + pkt_hdr_size = eth_hdr_size + + tcp_set_tcp_header(pkt + eth_hdr_size, dport, sport, + payload_len, action, tcp_seq_num, + tcp_ack_num); + break; +#endif default: return -EINVAL; } @@ -1289,6 +1310,15 @@ void net_process_received_packet(uchar *in_packet, int len) if (ip->ip_p == IPPROTO_ICMP) { receive_icmp(ip, len, src_ip, et); return; +#if defined(CONFIG_PROT_TCP) + } else if (ip->ip_p == IPPROTO_TCP) { + debug_cond(DEBUG_DEV_PKT, + "TCP PH (to=%pI4, from=%pI4, len=%d)\n", + &dst_ip, &src_ip, len); + + rxhand_tcp_f((union tcp_build_pkt *)ip, len); + return; +#endif } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ return; } |