lwip: move net/lwip/ping.c to cmd/lwip

Prepare to split the ping command from cmd/net-lwip.c by moving the
implementation from net/lwip/dns.c to cmd/lwip.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>

2 files changed, 0 insertions, 180 deletions

diff --git a/net/lwip/Makefile b/net/lwip/Makefile
index 255c7d018b0..97299d9b542 100644
--- a/net/lwip/Makefile
+++ b/net/lwip/Makefile
@@ -2,7 +2,6 @@ ccflags-y += -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot
 
 obj-$(CONFIG_$(PHASE_)DM_ETH) += net-lwip.o
 obj-$(CONFIG_CMD_DHCP) += dhcp.o
-obj-$(CONFIG_CMD_PING) += ping.o
 obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o
 obj-$(CONFIG_WGET) += wget.o
 
diff --git a/net/lwip/ping.c b/net/lwip/ping.c
deleted file mode 100644
index 1390b914f7d..00000000000
--- a/net/lwip/ping.c
+++ /dev/null
@@ -1,179 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/* Copyright (C) 2024 Linaro Ltd. */
-
-#include <command.h>
-#include <console.h>
-#include <dm/device.h>
-#include <linux/delay.h>
-#include <linux/errno.h>
-#include <lwip/icmp.h>
-#include <lwip/inet_chksum.h>
-#include <lwip/raw.h>
-#include <lwip/timeouts.h>
-#include <net.h>
-#include <time.h>
-
-#define PING_DELAY_MS 1000
-#define PING_COUNT 5
-/* Ping identifier - must fit on a u16_t */
-#define PING_ID 0xAFAF
-
-struct ping_ctx {
-	ip_addr_t target;
-	struct raw_pcb *pcb;
-	struct icmp_echo_hdr *iecho;
-	uint16_t seq_num;
-	bool alive;
-};
-
-static u8_t ping_recv(void *arg, struct raw_pcb *pcb, struct pbuf *p,
-		      const ip_addr_t *addr)
-{
-	struct ping_ctx *ctx = arg;
-	struct icmp_echo_hdr *iecho = ctx->iecho;
-
-	if (addr->addr != ctx->target.addr)
-		return 0;
-
-	if ((p->tot_len >= (IP_HLEN + sizeof(struct icmp_echo_hdr))) &&
-	    pbuf_remove_header(p, IP_HLEN) == 0) {
-		iecho = (struct icmp_echo_hdr *)p->payload;
-
-		if (iecho->id == PING_ID &&
-		    iecho->seqno == lwip_htons(ctx->seq_num)) {
-			ctx->alive = true;
-			printf("host %s is alive\n", ipaddr_ntoa(addr));
-			pbuf_free(p);
-			return 1; /* eat the packet */
-		}
-		/* not eaten, restore original packet */
-		pbuf_add_header(p, IP_HLEN);
-	}
-
-	return 0; /* don't eat the packet */
-}
-
-static int ping_raw_init(struct ping_ctx *ctx)
-{
-	ctx->pcb = raw_new(IP_PROTO_ICMP);
-	if (!ctx->pcb)
-		return -ENOMEM;
-
-	raw_recv(ctx->pcb, ping_recv, ctx);
-	raw_bind(ctx->pcb, IP_ADDR_ANY);
-
-	return 0;
-}
-
-static void ping_raw_stop(struct ping_ctx *ctx)
-{
-	if (ctx->pcb)
-		raw_remove(ctx->pcb);
-}
-
-static void ping_prepare_echo(struct ping_ctx *ctx)
-{
-	struct icmp_echo_hdr *iecho = ctx->iecho;
-
-	ICMPH_TYPE_SET(iecho, ICMP_ECHO);
-	ICMPH_CODE_SET(iecho, 0);
-	iecho->chksum = 0;
-	iecho->id = PING_ID;
-	iecho->seqno = lwip_htons(ctx->seq_num);
-
-	iecho->chksum = inet_chksum(iecho, sizeof(*iecho));
-}
-
-static void ping_send_icmp(struct ping_ctx *ctx)
-{
-	struct pbuf *p;
-	size_t ping_size = sizeof(struct icmp_echo_hdr);
-
-	p = pbuf_alloc(PBUF_IP, (u16_t)ping_size, PBUF_RAM);
-	if (!p)
-		return;
-
-	if (p->len == p->tot_len && !p->next) {
-		ctx->iecho = (struct icmp_echo_hdr *)p->payload;
-		ping_prepare_echo(ctx);
-		raw_sendto(ctx->pcb, p, &ctx->target);
-	}
-
-	pbuf_free(p);
-}
-
-static void ping_send(void *arg)
-{
-	struct ping_ctx *ctx = arg;
-
-	ctx->seq_num++;
-	if (ctx->seq_num <= PING_COUNT) {
-		ping_send_icmp(ctx);
-		sys_timeout(PING_DELAY_MS, ping_send, ctx);
-	}
-}
-
-static int ping_loop(struct udevice *udev, const ip_addr_t *addr)
-{
-	struct ping_ctx ctx = {};
-	struct netif *netif;
-	int ret;
-
-	netif = net_lwip_new_netif(udev);
-	if (!netif)
-		return -ENODEV;
-
-	printf("Using %s device\n", udev->name);
-
-	ret = ping_raw_init(&ctx);
-	if (ret < 0) {
-		net_lwip_remove_netif(netif);
-		return ret;
-	}
-
-	ctx.target = *addr;
-
-	ping_send(&ctx);
-
-	do {
-		net_lwip_rx(udev, netif);
-		if (ctx.alive)
-			break;
-		if (ctrlc()) {
-			printf("\nAbort\n");
-			break;
-		}
-	} while (ctx.seq_num <= PING_COUNT);
-
-	sys_untimeout(ping_send, &ctx);
-	ping_raw_stop(&ctx);
-
-	net_lwip_remove_netif(netif);
-
-	if (ctx.alive)
-		return 0;
-
-	printf("ping failed; host %s is not alive\n", ipaddr_ntoa(addr));
-	return -1;
-}
-
-int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
-{
-	ip_addr_t addr;
-
-	if (argc < 2)
-		return CMD_RET_USAGE;
-
-	if (!ipaddr_aton(argv[1], &addr))
-		return CMD_RET_USAGE;
-
-restart:
-	if (net_lwip_eth_start() < 0 || ping_loop(eth_get_dev(), &addr) < 0) {
-		if (net_start_again() == 0)
-			goto restart;
-		else
-			return CMD_RET_FAILURE;
-	}
-
-	return CMD_RET_SUCCESS;
-}