diff options
Diffstat (limited to 'net/lwip/net-lwip.c')
| -rw-r--r-- | net/lwip/net-lwip.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/net/lwip/net-lwip.c b/net/lwip/net-lwip.c index f05c4cd3f64..3918d57d7e5 100644 --- a/net/lwip/net-lwip.c +++ b/net/lwip/net-lwip.c @@ -3,18 +3,23 @@ /* Copyright (C) 2024 Linaro Ltd. */ #include <command.h> +#include <env.h> #include <dm/device.h> #include <dm/uclass.h> #include <hexdump.h> +#include <linux/kernel.h> #include <lwip/ip4_addr.h> +#include <lwip/dns.h> #include <lwip/err.h> #include <lwip/netif.h> #include <lwip/pbuf.h> #include <lwip/etharp.h> #include <lwip/init.h> #include <lwip/prot/etharp.h> +#include <lwip/timeouts.h> #include <net.h> #include <timer.h> +#include <u-boot/schedule.h> /* xx:xx:xx:xx:xx:xx\0 */ #define MAC_ADDR_STRLEN 18 @@ -138,6 +143,40 @@ static int get_udev_ipv4_info(struct udevice *dev, ip4_addr_t *ip, } /* + * Initialize DNS via env + */ +int net_lwip_dns_init(void) +{ +#if CONFIG_IS_ENABLED(CMD_DNS) + bool has_server = false; + ip_addr_t ns; + char *nsenv; + + nsenv = env_get("dnsip"); + if (nsenv && ipaddr_aton(nsenv, &ns)) { + dns_setserver(0, &ns); + has_server = true; + } + + nsenv = env_get("dnsip2"); + if (nsenv && ipaddr_aton(nsenv, &ns)) { + dns_setserver(1, &ns); + has_server = true; + } + + if (!has_server) { + log_err("No valid name server (dnsip/dnsip2)\n"); + return -EINVAL; + } + + return 0; +#else + log_err("DNS disabled\n"); + return -EINVAL; +#endif +} + +/* * Initialize the network stack if needed and start the current device if valid */ int net_lwip_eth_start(void) @@ -284,6 +323,11 @@ int net_lwip_rx(struct udevice *udev, struct netif *netif) int len; int i; + /* lwIP timers */ + sys_check_timeouts(); + /* Other tasks and actions */ + schedule(); + if (!eth_is_active(udev)) return -EINVAL; @@ -315,6 +359,44 @@ int net_lwip_rx(struct udevice *udev, struct netif *netif) return len; } +/** + * net_lwip_dns_resolve() - find IP address from name or IP + * + * @name_or_ip: host name or IP address + * @ip: output IP address + * + * Return value: 0 on success, -1 on failure. + */ +int net_lwip_dns_resolve(char *name_or_ip, ip_addr_t *ip) +{ +#if defined(CONFIG_CMD_DNS) + char *var = "_dnsres"; + char *argv[] = { "dns", name_or_ip, var, NULL }; + int argc = ARRAY_SIZE(argv) - 1; +#endif + + if (ipaddr_aton(name_or_ip, ip)) + return 0; + +#if defined(CONFIG_CMD_DNS) + if (do_dns(NULL, 0, argc, argv) != CMD_RET_SUCCESS) + return -1; + + name_or_ip = env_get(var); + if (!name_or_ip) + return -1; + + if (!ipaddr_aton(name_or_ip, ip)) + return -1; + + env_set(var, NULL); + + return 0; +#else + return -1; +#endif +} + void net_process_received_packet(uchar *in_packet, int len) { #if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) |