u-boot/cmd/net.c
Tom Rini e80f4079b3 Prepare v2023.07-rc6
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Merge tag 'v2023.07-rc6' into next

Prepare v2023.07-rc6
2023-07-05 11:28:55 -04:00

793 lines
18 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2000
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*/
#define LOG_CATEGORY UCLASS_ETH
/*
* Boot support
*/
#include <common.h>
#include <bootstage.h>
#include <command.h>
#include <dm.h>
#include <dm/devres.h>
#include <env.h>
#include <image.h>
#include <log.h>
#include <net.h>
#include <net6.h>
#include <net/udp.h>
#include <net/sntp.h>
#include <net/ncsi.h>
static int netboot_common(enum proto_t, struct cmd_tbl *, int, char * const []);
#ifdef CONFIG_CMD_BOOTP
static int do_bootp(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return netboot_common(BOOTP, cmdtp, argc, argv);
}
U_BOOT_CMD(
bootp, 3, 1, do_bootp,
"boot image via network using BOOTP/TFTP protocol",
"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif
#ifdef CONFIG_CMD_TFTPBOOT
int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
int ret;
bootstage_mark_name(BOOTSTAGE_KERNELREAD_START, "tftp_start");
ret = netboot_common(TFTPGET, cmdtp, argc, argv);
bootstage_mark_name(BOOTSTAGE_KERNELREAD_STOP, "tftp_done");
return ret;
}
#if IS_ENABLED(CONFIG_IPV6)
U_BOOT_CMD(
tftpboot, 4, 1, do_tftpb,
"boot image via network using TFTP protocol\n"
"To use IPv6 add -ipv6 parameter or use IPv6 hostIPaddr framed "
"with [] brackets",
"[loadAddress] [[hostIPaddr:]bootfilename] [" USE_IP6_CMD_PARAM "]"
);
#else
U_BOOT_CMD(
tftpboot, 3, 1, do_tftpb,
"load file via network using TFTP protocol",
"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif
#endif
#ifdef CONFIG_CMD_TFTPPUT
static int do_tftpput(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return netboot_common(TFTPPUT, cmdtp, argc, argv);
}
U_BOOT_CMD(
tftpput, 4, 1, do_tftpput,
"TFTP put command, for uploading files to a server",
"Address Size [[hostIPaddr:]filename]"
);
#endif
#ifdef CONFIG_CMD_TFTPSRV
static int do_tftpsrv(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return netboot_common(TFTPSRV, cmdtp, argc, argv);
}
U_BOOT_CMD(
tftpsrv, 2, 1, do_tftpsrv,
"act as a TFTP server and boot the first received file",
"[loadAddress]\n"
"Listen for an incoming TFTP transfer, receive a file and boot it.\n"
"The transfer is aborted if a transfer has not been started after\n"
"about 50 seconds or if Ctrl-C is pressed."
);
#endif
#ifdef CONFIG_CMD_RARP
int do_rarpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
return netboot_common(RARP, cmdtp, argc, argv);
}
U_BOOT_CMD(
rarpboot, 3, 1, do_rarpb,
"boot image via network using RARP/TFTP protocol",
"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif
#if defined(CONFIG_CMD_DHCP6)
static int do_dhcp6(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
int i;
int dhcp_argc;
char *dhcp_argv[] = {NULL, NULL, NULL, NULL};
/* Add -ipv6 flag for autoload */
for (i = 0; i < argc; i++)
dhcp_argv[i] = argv[i];
dhcp_argc = argc + 1;
dhcp_argv[dhcp_argc - 1] = USE_IP6_CMD_PARAM;
return netboot_common(DHCP6, cmdtp, dhcp_argc, dhcp_argv);
}
U_BOOT_CMD(dhcp6, 3, 1, do_dhcp6,
"boot image via network using DHCPv6/TFTP protocol.\n"
"Use IPv6 hostIPaddr framed with [] brackets",
"[loadAddress] [[hostIPaddr:]bootfilename]");
#endif
#if defined(CONFIG_CMD_DHCP)
static int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return netboot_common(DHCP, cmdtp, argc, argv);
}
U_BOOT_CMD(
dhcp, 3, 1, do_dhcp,
"boot image via network using DHCP/TFTP protocol",
"[loadAddress] [[hostIPaddr:]bootfilename]"
);
int dhcp_run(ulong addr, const char *fname, bool autoload)
{
char *dhcp_argv[] = {"dhcp", NULL, (char *)fname, NULL};
struct cmd_tbl cmdtp = {}; /* dummy */
char file_addr[17];
int old_autoload;
int ret, result;
log_debug("addr=%lx, fname=%s, autoload=%d\n", addr, fname, autoload);
old_autoload = env_get_yesno("autoload");
ret = env_set("autoload", autoload ? "y" : "n");
if (ret)
return log_msg_ret("en1", -EINVAL);
if (autoload) {
sprintf(file_addr, "%lx", addr);
dhcp_argv[1] = file_addr;
}
result = do_dhcp(&cmdtp, 0, !autoload ? 1 : fname ? 3 : 2, dhcp_argv);
ret = env_set("autoload", old_autoload == -1 ? NULL :
old_autoload ? "y" : "n");
if (ret)
return log_msg_ret("en2", -EINVAL);
if (result)
return log_msg_ret("res", -ENOENT);
return 0;
}
#endif
#if defined(CONFIG_CMD_NFS)
static int do_nfs(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
return netboot_common(NFS, cmdtp, argc, argv);
}
U_BOOT_CMD(
nfs, 3, 1, do_nfs,
"boot image via network using NFS protocol",
"[loadAddress] [[hostIPaddr:]bootfilename]"
);
#endif
#if defined(CONFIG_CMD_WGET)
static int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
return netboot_common(WGET, cmdtp, argc, argv);
}
U_BOOT_CMD(
wget, 3, 1, do_wget,
"boot image via network using HTTP protocol",
"[loadAddress] [[hostIPaddr:]path and image name]"
);
#endif
static void netboot_update_env(void)
{
char tmp[46];
if (net_gateway.s_addr) {
ip_to_string(net_gateway, tmp);
env_set("gatewayip", tmp);
}
if (net_netmask.s_addr) {
ip_to_string(net_netmask, tmp);
env_set("netmask", tmp);
}
#ifdef CONFIG_CMD_BOOTP
if (net_hostname[0])
env_set("hostname", net_hostname);
#endif
#ifdef CONFIG_CMD_BOOTP
if (net_root_path[0])
env_set("rootpath", net_root_path);
#endif
if (net_ip.s_addr) {
ip_to_string(net_ip, tmp);
env_set("ipaddr", tmp);
}
/*
* Only attempt to change serverip if net/bootp.c:store_net_params()
* could have set it
*/
if (!IS_ENABLED(CONFIG_BOOTP_SERVERIP) && net_server_ip.s_addr) {
ip_to_string(net_server_ip, tmp);
env_set("serverip", tmp);
}
if (net_dns_server.s_addr) {
ip_to_string(net_dns_server, tmp);
env_set("dnsip", tmp);
}
#if defined(CONFIG_BOOTP_DNS2)
if (net_dns_server2.s_addr) {
ip_to_string(net_dns_server2, tmp);
env_set("dnsip2", tmp);
}
#endif
#ifdef CONFIG_CMD_BOOTP
if (net_nis_domain[0])
env_set("domain", net_nis_domain);
#endif
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
if (net_ntp_time_offset) {
sprintf(tmp, "%d", net_ntp_time_offset);
env_set("timeoffset", tmp);
}
#endif
#if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_NTPSERVER)
if (net_ntp_server.s_addr) {
ip_to_string(net_ntp_server, tmp);
env_set("ntpserverip", tmp);
}
#endif
if (IS_ENABLED(CONFIG_IPV6)) {
if (!ip6_is_unspecified_addr(&net_ip6) ||
net_prefix_length != 0) {
if (net_prefix_length != 0)
snprintf(tmp, sizeof(tmp), "%pI6c/%d", &net_ip6, net_prefix_length);
else
snprintf(tmp, sizeof(tmp), "%pI6c", &net_ip6);
env_set("ip6addr", tmp);
}
if (!ip6_is_unspecified_addr(&net_server_ip6)) {
snprintf(tmp, sizeof(tmp), "%pI6c", &net_server_ip6);
env_set("serverip6", tmp);
}
if (!ip6_is_unspecified_addr(&net_gateway6)) {
snprintf(tmp, sizeof(tmp), "%pI6c", &net_gateway6);
env_set("gatewayip6", tmp);
}
}
}
/**
* parse_addr_size() - parse address and size arguments for tftpput
*
* @argv: command line arguments
* Return: 0 on success
*/
static int parse_addr_size(char * const argv[])
{
if (strict_strtoul(argv[1], 16, &image_save_addr) < 0 ||
strict_strtoul(argv[2], 16, &image_save_size) < 0) {
printf("Invalid address/size\n");
return CMD_RET_USAGE;
}
return 0;
}
/**
* parse_args() - parse command line arguments
*
* @proto: command prototype
* @argc: number of arguments
* @argv: command line arguments
* Return: 0 on success
*/
static int parse_args(enum proto_t proto, int argc, char *const argv[])
{
ulong addr;
char *end;
switch (argc) {
case 1:
if (IS_ENABLED(CONFIG_CMD_TFTPPUT) && proto == TFTPPUT)
return 1;
/* refresh bootfile name from env */
copy_filename(net_boot_file_name, env_get("bootfile"),
sizeof(net_boot_file_name));
break;
case 2:
if (IS_ENABLED(CONFIG_CMD_TFTPPUT) && proto == TFTPPUT)
return 1;
/*
* Only one arg - accept two forms:
* Just load address, or just boot file name. The latter
* form must be written in a format which can not be
* mis-interpreted as a valid number.
*/
addr = hextoul(argv[1], &end);
if (end == (argv[1] + strlen(argv[1]))) {
image_load_addr = addr;
/* refresh bootfile name from env */
copy_filename(net_boot_file_name, env_get("bootfile"),
sizeof(net_boot_file_name));
} else {
net_boot_file_name_explicit = true;
copy_filename(net_boot_file_name, argv[1],
sizeof(net_boot_file_name));
}
break;
case 3:
if (IS_ENABLED(CONFIG_CMD_TFTPPUT) && proto == TFTPPUT) {
if (parse_addr_size(argv))
return 1;
} else {
image_load_addr = hextoul(argv[1], NULL);
net_boot_file_name_explicit = true;
copy_filename(net_boot_file_name, argv[2],
sizeof(net_boot_file_name));
}
break;
#ifdef CONFIG_CMD_TFTPPUT
case 4:
if (parse_addr_size(argv))
return 1;
net_boot_file_name_explicit = true;
copy_filename(net_boot_file_name, argv[3],
sizeof(net_boot_file_name));
break;
#endif
default:
return 1;
}
return 0;
}
static int netboot_common(enum proto_t proto, struct cmd_tbl *cmdtp, int argc,
char *const argv[])
{
char *s;
int rcode = 0;
int size;
net_boot_file_name_explicit = false;
*net_boot_file_name = '\0';
/* pre-set image_load_addr */
s = env_get("loadaddr");
if (s != NULL)
image_load_addr = hextoul(s, NULL);
if (IS_ENABLED(CONFIG_IPV6)) {
use_ip6 = false;
/* IPv6 parameter has to be always *last* */
if (!strcmp(argv[argc - 1], USE_IP6_CMD_PARAM)) {
use_ip6 = true;
/* It is a hack not to break switch/case code */
--argc;
}
}
if (parse_args(proto, argc, argv)) {
bootstage_error(BOOTSTAGE_ID_NET_START);
return CMD_RET_USAGE;
}
bootstage_mark(BOOTSTAGE_ID_NET_START);
if (IS_ENABLED(CONFIG_IPV6) && !use_ip6) {
char *s, *e;
size_t len;
s = strchr(net_boot_file_name, '[');
e = strchr(net_boot_file_name, ']');
if (s && e) {
len = e - s;
if (!string_to_ip6(s + 1, len - 1, &net_server_ip6))
use_ip6 = true;
}
}
size = net_loop(proto);
if (size < 0) {
bootstage_error(BOOTSTAGE_ID_NET_NETLOOP_OK);
return CMD_RET_FAILURE;
}
bootstage_mark(BOOTSTAGE_ID_NET_NETLOOP_OK);
/* net_loop ok, update environment */
netboot_update_env();
/* done if no file was loaded (no errors though) */
if (size == 0) {
bootstage_error(BOOTSTAGE_ID_NET_LOADED);
return CMD_RET_SUCCESS;
}
bootstage_mark(BOOTSTAGE_ID_NET_LOADED);
rcode = bootm_maybe_autostart(cmdtp, argv[0]);
if (rcode == CMD_RET_SUCCESS)
bootstage_mark(BOOTSTAGE_ID_NET_DONE);
else
bootstage_error(BOOTSTAGE_ID_NET_DONE_ERR);
return rcode;
}
#if defined(CONFIG_CMD_PING)
static int do_ping(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
if (argc < 2)
return CMD_RET_USAGE;
net_ping_ip = string_to_ip(argv[1]);
if (net_ping_ip.s_addr == 0)
return CMD_RET_USAGE;
if (net_loop(PING) < 0) {
printf("ping failed; host %s is not alive\n", argv[1]);
return CMD_RET_FAILURE;
}
printf("host %s is alive\n", argv[1]);
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
ping, 2, 1, do_ping,
"send ICMP ECHO_REQUEST to network host",
"pingAddress"
);
#endif
#if IS_ENABLED(CONFIG_CMD_PING6)
int do_ping6(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
if (string_to_ip6(argv[1], strlen(argv[1]), &net_ping_ip6))
return CMD_RET_USAGE;
use_ip6 = true;
if (net_loop(PING6) < 0) {
use_ip6 = false;
printf("ping6 failed; host %pI6c is not alive\n",
&net_ping_ip6);
return 1;
}
use_ip6 = false;
printf("host %pI6c is alive\n", &net_ping_ip6);
return 0;
}
U_BOOT_CMD(
ping6, 2, 1, do_ping6,
"send ICMPv6 ECHO_REQUEST to network host",
"pingAddress"
);
#endif /* CONFIG_CMD_PING6 */
#if defined(CONFIG_CMD_CDP)
static void cdp_update_env(void)
{
char tmp[16];
if (cdp_appliance_vlan != htons(-1)) {
printf("CDP offered appliance VLAN %d\n",
ntohs(cdp_appliance_vlan));
vlan_to_string(cdp_appliance_vlan, tmp);
env_set("vlan", tmp);
net_our_vlan = cdp_appliance_vlan;
}
if (cdp_native_vlan != htons(-1)) {
printf("CDP offered native VLAN %d\n", ntohs(cdp_native_vlan));
vlan_to_string(cdp_native_vlan, tmp);
env_set("nvlan", tmp);
net_native_vlan = cdp_native_vlan;
}
}
int do_cdp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
int r;
r = net_loop(CDP);
if (r < 0) {
printf("cdp failed; perhaps not a CISCO switch?\n");
return CMD_RET_FAILURE;
}
cdp_update_env();
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
cdp, 1, 1, do_cdp,
"Perform CDP network configuration",
"\n"
);
#endif
#if defined(CONFIG_CMD_SNTP)
static struct udp_ops sntp_ops = {
.prereq = sntp_prereq,
.start = sntp_start,
.data = NULL,
};
int do_sntp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
char *toff;
if (argc < 2) {
net_ntp_server = env_get_ip("ntpserverip");
if (net_ntp_server.s_addr == 0) {
printf("ntpserverip not set\n");
return CMD_RET_FAILURE;
}
} else {
net_ntp_server = string_to_ip(argv[1]);
if (net_ntp_server.s_addr == 0) {
printf("Bad NTP server IP address\n");
return CMD_RET_FAILURE;
}
}
toff = env_get("timeoffset");
if (toff == NULL)
net_ntp_time_offset = 0;
else
net_ntp_time_offset = simple_strtol(toff, NULL, 10);
if (udp_loop(&sntp_ops) < 0) {
printf("SNTP failed: host %pI4 not responding\n",
&net_ntp_server);
return CMD_RET_FAILURE;
}
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
sntp, 2, 1, do_sntp,
"synchronize RTC via network",
"[NTP server IP]\n"
);
#endif
#if defined(CONFIG_CMD_DNS)
int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
if (argc == 1)
return CMD_RET_USAGE;
/*
* We should check for a valid hostname:
* - Each label must be between 1 and 63 characters long
* - the entire hostname has a maximum of 255 characters
* - only the ASCII letters 'a' through 'z' (case-insensitive),
* the digits '0' through '9', and the hyphen
* - cannot begin or end with a hyphen
* - no other symbols, punctuation characters, or blank spaces are
* permitted
* but hey - this is a minimalist implmentation, so only check length
* and let the name server deal with things.
*/
if (strlen(argv[1]) >= 255) {
printf("dns error: hostname too long\n");
return CMD_RET_FAILURE;
}
net_dns_resolve = argv[1];
if (argc == 3)
net_dns_env_var = argv[2];
else
net_dns_env_var = NULL;
if (net_loop(DNS) < 0) {
printf("dns lookup of %s failed, check setup\n", argv[1]);
return CMD_RET_FAILURE;
}
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
dns, 3, 1, do_dns,
"lookup the IP of a hostname",
"hostname [envvar]"
);
#endif /* CONFIG_CMD_DNS */
#if defined(CONFIG_CMD_LINK_LOCAL)
static int do_link_local(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
char tmp[22];
if (net_loop(LINKLOCAL) < 0)
return CMD_RET_FAILURE;
net_gateway.s_addr = 0;
ip_to_string(net_gateway, tmp);
env_set("gatewayip", tmp);
ip_to_string(net_netmask, tmp);
env_set("netmask", tmp);
ip_to_string(net_ip, tmp);
env_set("ipaddr", tmp);
env_set("llipaddr", tmp); /* store this for next time */
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
linklocal, 1, 1, do_link_local,
"acquire a network IP address using the link-local protocol",
""
);
#endif /* CONFIG_CMD_LINK_LOCAL */
static int do_net_list(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
const struct udevice *current = eth_get_dev();
unsigned char env_enetaddr[ARP_HLEN];
const struct udevice *dev;
struct uclass *uc;
uclass_id_foreach_dev(UCLASS_ETH, dev, uc) {
eth_env_get_enetaddr_by_index("eth", dev_seq(dev), env_enetaddr);
printf("eth%d : %s %pM %s\n", dev_seq(dev), dev->name, env_enetaddr,
current == dev ? "active" : "");
}
return CMD_RET_SUCCESS;
}
static int do_net_stats(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
int nstats, err, i, off;
struct udevice *dev;
u64 *values;
u8 *strings;
if (argc < 2)
return CMD_RET_USAGE;
err = uclass_get_device_by_name(UCLASS_ETH, argv[1], &dev);
if (err) {
printf("Could not find device %s\n", argv[1]);
return CMD_RET_FAILURE;
}
if (!eth_get_ops(dev)->get_sset_count ||
!eth_get_ops(dev)->get_strings ||
!eth_get_ops(dev)->get_stats) {
printf("Driver does not implement stats dump!\n");
return CMD_RET_FAILURE;
}
nstats = eth_get_ops(dev)->get_sset_count(dev);
strings = kcalloc(nstats, ETH_GSTRING_LEN, GFP_KERNEL);
if (!strings)
return CMD_RET_FAILURE;
values = kcalloc(nstats, sizeof(u64), GFP_KERNEL);
if (!values)
goto err_free_strings;
eth_get_ops(dev)->get_strings(dev, strings);
eth_get_ops(dev)->get_stats(dev, values);
off = 0;
for (i = 0; i < nstats; i++) {
printf(" %s: %llu\n", &strings[off], values[i]);
off += ETH_GSTRING_LEN;
};
return CMD_RET_SUCCESS;
err_free_strings:
kfree(strings);
return CMD_RET_FAILURE;
}
static struct cmd_tbl cmd_net[] = {
U_BOOT_CMD_MKENT(list, 1, 0, do_net_list, "", ""),
U_BOOT_CMD_MKENT(stats, 2, 0, do_net_stats, "", ""),
};
static int do_net(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
{
struct cmd_tbl *cp;
cp = find_cmd_tbl(argv[1], cmd_net, ARRAY_SIZE(cmd_net));
/* Drop the net command */
argc--;
argv++;
if (!cp || argc > cp->maxargs)
return CMD_RET_USAGE;
if (flag == CMD_FLAG_REPEAT && !cmd_is_repeatable(cp))
return CMD_RET_SUCCESS;
return cp->cmd(cmdtp, flag, argc, argv);
}
U_BOOT_CMD(
net, 3, 1, do_net,
"NET sub-system",
"list - list available devices\n"
"stats <device> - dump statistics for specified device\n"
);
#if defined(CONFIG_CMD_NCSI)
static int do_ncsi(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[])
{
if (!phy_interface_is_ncsi() || !ncsi_active()) {
printf("Device not configured for NC-SI\n");
return CMD_RET_FAILURE;
}
if (net_loop(NCSI) < 0)
return CMD_RET_FAILURE;
return CMD_RET_SUCCESS;
}
U_BOOT_CMD(
ncsi, 1, 1, do_ncsi,
"Configure attached NIC via NC-SI",
""
);
#endif /* CONFIG_CMD_NCSI */