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net: ipv6: Incorporate IPv6 support into u-boot net subsystem

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Add net_ip6_handler (an IPv6 packet handler) into net_loop. Add
neighbor discovery mechanism into network init process. That is the
main step to run IPv6 in u-boot. Now u-boot is capable to use NDP and
handle IPv6 packets.

Signed-off-by: Viacheslav Mitrofanov <v.v.mitrofanov@yadro.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Viacheslav Mitrofanov 2022-12-02 12:18:06 +03:00 committed by Tom Rini
parent 1feb697830
commit ffdbf3bad5
1 changed files with 22 additions and 1 deletions
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23
net/net.c
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@ -91,6 +91,8 @@
#include <image.h>
#include <log.h>
#include <net.h>
#include <net6.h>
#include <ndisc.h>
#include <net/fastboot.h>
#include <net/tftp.h>
#include <net/ncsi.h>
@ -343,8 +345,17 @@ void net_auto_load(void)
static int net_init_loop(void)
{
if (eth_get_dev())
if (eth_get_dev()) {
memcpy(net_ethaddr, eth_get_ethaddr(), 6);
if (IS_ENABLED(CONFIG_IPV6)) {
ip6_make_lladdr(&net_link_local_ip6, net_ethaddr);
if (!memcmp(&net_ip6, &net_null_addr_ip6,
sizeof(struct in6_addr)))
memcpy(&net_ip6, &net_link_local_ip6,
sizeof(struct in6_addr));
}
}
else
/*
* Not ideal, but there's no way to get the actual error, and I
@ -385,6 +396,7 @@ int net_init(void)
(i + 1) * PKTSIZE_ALIGN;
}
arp_init();
ndisc_init();
net_clear_handlers();
/* Only need to setup buffer pointers once. */
@ -589,6 +601,11 @@ restart:
if (arp_timeout_check() > 0)
time_start = get_timer(0);
if (IS_ENABLED(CONFIG_IPV6)) {
if (use_ip6 && (ndisc_timeout_check() > 0))
time_start = get_timer(0);
}
/*
* Check the ethernet for a new packet. The ethernet
* receive routine will process it.
@ -1243,6 +1260,10 @@ void net_process_received_packet(uchar *in_packet, int len)
case PROT_RARP:
rarp_receive(ip, len);
break;
#endif
#if IS_ENABLED(CONFIG_IPV6)
case PROT_IP6:
net_ip6_handler(et, (struct ip6_hdr *)ip, len);
#endif
case PROT_IP:
debug_cond(DEBUG_NET_PKT, "Got IP\n");