struct efi_gop_mode *mode;
};
+#define EFI_SIMPLE_NETWORK_GUID \
+ EFI_GUID(0xa19832b9, 0xac25, 0x11d3, \
+ 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
+
+struct efi_mac_address {
+ char mac_addr[32];
+};
+
+struct efi_ip_address {
+ u8 ip_addr[16];
+};
+
+enum efi_simple_network_state {
+ EFI_NETWORK_STOPPED,
+ EFI_NETWORK_STARTED,
+ EFI_NETWORK_INITIALIZED,
+};
+
+struct efi_simple_network_mode {
+ enum efi_simple_network_state state;
+ u32 hwaddr_size;
+ u32 media_header_size;
+ u32 max_packet_size;
+ u32 nvram_size;
+ u32 nvram_access_size;
+ u32 receive_filter_mask;
+ u32 receive_filter_setting;
+ u32 max_mcast_filter_count;
+ u32 mcast_filter_count;
+ struct efi_mac_address mcast_filter[16];
+ struct efi_mac_address current_address;
+ struct efi_mac_address broadcast_address;
+ struct efi_mac_address permanent_address;
+ u8 if_type;
+ u8 mac_changeable;
+ u8 multitx_supported;
+ u8 media_present_supported;
+ u8 media_present;
+};
+
+#define EFI_SIMPLE_NETWORK_RECEIVE_UNICAST 0x01,
+#define EFI_SIMPLE_NETWORK_RECEIVE_MULTICAST 0x02,
+#define EFI_SIMPLE_NETWORK_RECEIVE_BROADCAST 0x04,
+#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS 0x08,
+#define EFI_SIMPLE_NETWORK_RECEIVE_PROMISCUOUS_MULTICAST 0x10,
+
+struct efi_simple_network
+{
+ u64 revision;
+ efi_status_t (EFIAPI *start)(struct efi_simple_network *this);
+ efi_status_t (EFIAPI *stop)(struct efi_simple_network *this);
+ efi_status_t (EFIAPI *initialize)(struct efi_simple_network *this,
+ ulong extra_rx, ulong extra_tx);
+ efi_status_t (EFIAPI *reset)(struct efi_simple_network *this,
+ int extended_verification);
+ efi_status_t (EFIAPI *shutdown)(struct efi_simple_network *this);
+ efi_status_t (EFIAPI *receive_filters)(struct efi_simple_network *this,
+ u32 enable, u32 disable, int reset_mcast_filter,
+ ulong mcast_filter_count,
+ struct efi_mac_address *mcast_filter);
+ efi_status_t (EFIAPI *station_address)(struct efi_simple_network *this,
+ int reset, struct efi_mac_address *new_mac);
+ efi_status_t (EFIAPI *statistics)(struct efi_simple_network *this,
+ int reset, ulong *stat_size, void *stat_table);
+ efi_status_t (EFIAPI *mcastiptomac)(struct efi_simple_network *this,
+ int ipv6, struct efi_ip_address *ip,
+ struct efi_mac_address *mac);
+ efi_status_t (EFIAPI *nvdata)(struct efi_simple_network *this,
+ int read_write, ulong offset, ulong buffer_size,
+ char *buffer);
+ efi_status_t (EFIAPI *get_status)(struct efi_simple_network *this,
+ u32 *int_status, void **txbuf);
+ efi_status_t (EFIAPI *transmit)(struct efi_simple_network *this,
+ ulong header_size, ulong buffer_size, void *buffer,
+ struct efi_mac_address *src_addr,
+ struct efi_mac_address *dest_addr, u16 *protocol);
+ efi_status_t (EFIAPI *receive)(struct efi_simple_network *this,
+ ulong *header_size, ulong *buffer_size, void *buffer,
+ struct efi_mac_address *src_addr,
+ struct efi_mac_address *dest_addr, u16 *protocol);
+ void (EFIAPI *waitforpacket)(void);
+ struct efi_simple_network_mode *mode;
+};
+
+#define EFI_PXE_GUID \
+ EFI_GUID(0x03c4e603, 0xac28, 0x11d3, \
+ 0x9a, 0x2d, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
+
+struct efi_pxe_packet {
+ u8 packet[1472];
+};
+
+struct efi_pxe_mode
+{
+ u8 unused[52];
+ struct efi_pxe_packet dhcp_discover;
+ struct efi_pxe_packet dhcp_ack;
+ struct efi_pxe_packet proxy_offer;
+ struct efi_pxe_packet pxe_discover;
+ struct efi_pxe_packet pxe_reply;
+};
+
+struct efi_pxe {
+ u64 rev;
+ void (EFIAPI *start)(void);
+ void (EFIAPI *stop)(void);
+ void (EFIAPI *dhcp)(void);
+ void (EFIAPI *discover)(void);
+ void (EFIAPI *mftp)(void);
+ void (EFIAPI *udpwrite)(void);
+ void (EFIAPI *udpread)(void);
+ void (EFIAPI *setipfilter)(void);
+ void (EFIAPI *arp)(void);
+ void (EFIAPI *setparams)(void);
+ void (EFIAPI *setstationip)(void);
+ void (EFIAPI *setpackets)(void);
+ struct efi_pxe_mode *mode;
+};
+
#endif
--- /dev/null
+/*
+ * EFI application network access support
+ *
+ * Copyright (c) 2016 Alexander Graf
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <efi_loader.h>
+#include <inttypes.h>
+#include <lcd.h>
+#include <malloc.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const efi_guid_t efi_net_guid = EFI_SIMPLE_NETWORK_GUID;
+static const efi_guid_t efi_pxe_guid = EFI_PXE_GUID;
+static struct efi_pxe_packet *dhcp_ack;
+static bool new_rx_packet;
+static void *new_tx_packet;
+
+struct efi_net_obj {
+ /* Generic EFI object parent class data */
+ struct efi_object parent;
+ /* EFI Interface callback struct for network */
+ struct efi_simple_network net;
+ struct efi_simple_network_mode net_mode;
+ /* Device path to the network adapter */
+ struct efi_device_path_file_path dp[2];
+ /* PXE struct to transmit dhcp data */
+ struct efi_pxe pxe;
+ struct efi_pxe_mode pxe_mode;
+};
+
+static efi_status_t EFIAPI efi_net_start(struct efi_simple_network *this)
+{
+ EFI_ENTRY("%p", this);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_stop(struct efi_simple_network *this)
+{
+ EFI_ENTRY("%p", this);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_initialize(struct efi_simple_network *this,
+ ulong extra_rx, ulong extra_tx)
+{
+ EFI_ENTRY("%p, %lx, %lx", this, extra_rx, extra_tx);
+
+ eth_init();
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_reset(struct efi_simple_network *this,
+ int extended_verification)
+{
+ EFI_ENTRY("%p, %x", this, extended_verification);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_shutdown(struct efi_simple_network *this)
+{
+ EFI_ENTRY("%p", this);
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_receive_filters(
+ struct efi_simple_network *this, u32 enable, u32 disable,
+ int reset_mcast_filter, ulong mcast_filter_count,
+ struct efi_mac_address *mcast_filter)
+{
+ EFI_ENTRY("%p, %x, %x, %x, %lx, %p", this, enable, disable,
+ reset_mcast_filter, mcast_filter_count, mcast_filter);
+
+ /* XXX Do we care? */
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_station_address(
+ struct efi_simple_network *this, int reset,
+ struct efi_mac_address *new_mac)
+{
+ EFI_ENTRY("%p, %x, %p", this, reset, new_mac);
+
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+}
+
+static efi_status_t EFIAPI efi_net_statistics(struct efi_simple_network *this,
+ int reset, ulong *stat_size,
+ void *stat_table)
+{
+ EFI_ENTRY("%p, %x, %p, %p", this, reset, stat_size, stat_table);
+
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+}
+
+static efi_status_t EFIAPI efi_net_mcastiptomac(struct efi_simple_network *this,
+ int ipv6,
+ struct efi_ip_address *ip,
+ struct efi_mac_address *mac)
+{
+ EFI_ENTRY("%p, %x, %p, %p", this, ipv6, ip, mac);
+
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+}
+
+static efi_status_t EFIAPI efi_net_nvdata(struct efi_simple_network *this,
+ int read_write, ulong offset,
+ ulong buffer_size, char *buffer)
+{
+ EFI_ENTRY("%p, %x, %lx, %lx, %p", this, read_write, offset, buffer_size,
+ buffer);
+
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+}
+
+static efi_status_t EFIAPI efi_net_get_status(struct efi_simple_network *this,
+ u32 *int_status, void **txbuf)
+{
+ EFI_ENTRY("%p, %p, %p", this, int_status, txbuf);
+
+ /* We send packets synchronously, so nothing is outstanding */
+ if (int_status)
+ *int_status = 0;
+ if (txbuf)
+ *txbuf = new_tx_packet;
+
+ new_tx_packet = NULL;
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t EFIAPI efi_net_transmit(struct efi_simple_network *this,
+ ulong header_size, ulong buffer_size, void *buffer,
+ struct efi_mac_address *src_addr,
+ struct efi_mac_address *dest_addr, u16 *protocol)
+{
+ EFI_ENTRY("%p, %lx, %lx, %p, %p, %p, %p", this, header_size,
+ buffer_size, buffer, src_addr, dest_addr, protocol);
+
+ if (header_size) {
+ /* We would need to create the header if header_size != 0 */
+ return EFI_EXIT(EFI_INVALID_PARAMETER);
+ }
+
+ net_send_packet(buffer, buffer_size);
+ new_tx_packet = buffer;
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static void efi_net_push(void *pkt, int len)
+{
+ new_rx_packet = true;
+}
+
+static efi_status_t EFIAPI efi_net_receive(struct efi_simple_network *this,
+ ulong *header_size, ulong *buffer_size, void *buffer,
+ struct efi_mac_address *src_addr,
+ struct efi_mac_address *dest_addr, u16 *protocol)
+{
+ EFI_ENTRY("%p, %p, %p, %p, %p, %p, %p", this, header_size,
+ buffer_size, buffer, src_addr, dest_addr, protocol);
+
+ push_packet = efi_net_push;
+ eth_rx();
+ push_packet = NULL;
+
+ if (!new_rx_packet)
+ return EFI_EXIT(EFI_NOT_READY);
+
+ if (*buffer_size < net_rx_packet_len) {
+ /* Packet doesn't fit, try again with bigger buf */
+ *buffer_size = net_rx_packet_len;
+ return EFI_EXIT(EFI_BUFFER_TOO_SMALL);
+ }
+
+ memcpy(buffer, net_rx_packet, net_rx_packet_len);
+ *buffer_size = net_rx_packet_len;
+ new_rx_packet = false;
+
+ return EFI_EXIT(EFI_SUCCESS);
+}
+
+static efi_status_t efi_net_open_dp(void *handle, efi_guid_t *protocol,
+ void **protocol_interface, void *agent_handle,
+ void *controller_handle, uint32_t attributes)
+{
+ struct efi_simple_network *net = handle;
+ struct efi_net_obj *netobj = container_of(net, struct efi_net_obj, net);
+
+ *protocol_interface = netobj->dp;
+
+ return EFI_SUCCESS;
+}
+
+static efi_status_t efi_net_open_pxe(void *handle, efi_guid_t *protocol,
+ void **protocol_interface, void *agent_handle,
+ void *controller_handle, uint32_t attributes)
+{
+ struct efi_simple_network *net = handle;
+ struct efi_net_obj *netobj = container_of(net, struct efi_net_obj, net);
+
+ *protocol_interface = &netobj->pxe;
+
+ return EFI_SUCCESS;
+}
+
+void efi_net_set_dhcp_ack(void *pkt, int len)
+{
+ int maxsize = sizeof(*dhcp_ack);
+
+ if (!dhcp_ack)
+ dhcp_ack = malloc(maxsize);
+
+ memcpy(dhcp_ack, pkt, min(len, maxsize));
+}
+
+/* This gets called from do_bootefi_exec(). */
+int efi_net_register(void **handle)
+{
+ struct efi_net_obj *netobj;
+ struct efi_device_path_file_path dp_net = {
+ .dp.type = DEVICE_PATH_TYPE_MEDIA_DEVICE,
+ .dp.sub_type = DEVICE_PATH_SUB_TYPE_FILE_PATH,
+ .dp.length = sizeof(dp_net),
+ .str = { 'N', 'e', 't' },
+ };
+ struct efi_device_path_file_path dp_end = {
+ .dp.type = DEVICE_PATH_TYPE_END,
+ .dp.sub_type = DEVICE_PATH_SUB_TYPE_END,
+ .dp.length = sizeof(dp_end),
+ };
+
+ if (!eth_get_dev()) {
+ /* No eth device active, don't expose any */
+ return 0;
+ }
+
+ /* We only expose the "active" eth device, so one is enough */
+ netobj = calloc(1, sizeof(*netobj));
+
+ /* Fill in object data */
+ netobj->parent.protocols[0].guid = &efi_net_guid;
+ netobj->parent.protocols[0].open = efi_return_handle;
+ netobj->parent.protocols[1].guid = &efi_guid_device_path;
+ netobj->parent.protocols[1].open = efi_net_open_dp;
+ netobj->parent.protocols[2].guid = &efi_pxe_guid;
+ netobj->parent.protocols[2].open = efi_net_open_pxe;
+ netobj->parent.handle = &netobj->net;
+ netobj->net.start = efi_net_start;
+ netobj->net.stop = efi_net_stop;
+ netobj->net.initialize = efi_net_initialize;
+ netobj->net.reset = efi_net_reset;
+ netobj->net.shutdown = efi_net_shutdown;
+ netobj->net.receive_filters = efi_net_receive_filters;
+ netobj->net.station_address = efi_net_station_address;
+ netobj->net.statistics = efi_net_statistics;
+ netobj->net.mcastiptomac = efi_net_mcastiptomac;
+ netobj->net.nvdata = efi_net_nvdata;
+ netobj->net.get_status = efi_net_get_status;
+ netobj->net.transmit = efi_net_transmit;
+ netobj->net.receive = efi_net_receive;
+ netobj->net.mode = &netobj->net_mode;
+ netobj->net_mode.state = EFI_NETWORK_STARTED;
+ netobj->dp[0] = dp_net;
+ netobj->dp[1] = dp_end;
+ memcpy(netobj->net_mode.current_address.mac_addr, eth_get_ethaddr(), 6);
+ netobj->net_mode.max_packet_size = PKTSIZE;
+
+ netobj->pxe.mode = &netobj->pxe_mode;
+ if (dhcp_ack)
+ netobj->pxe_mode.dhcp_ack = *dhcp_ack;
+
+ /* Hook net up to the device list */
+ list_add_tail(&netobj->parent.link, &efi_obj_list);
+
+ if (handle)
+ *handle = &netobj->net;
+
+ return 0;
+}
projects / u-boot.git / commitdiff