Note: Patch posted separately [0].

[0] http://patchwork.ozlabs.org/project/uboot/patch/20241002144845.1439316-1-jer...

AVB_BUF_ADDR, which is under "if AVB_VERIFY", defaults to FASTBOOT_BUF_ADDR. Therefore AVB_VERIFY should depend on FASTBOOT.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- common/Kconfig | 1 + 1 file changed, 1 insertion(+)

diff --git a/common/Kconfig b/common/Kconfig index 957de0c5c02..c011ab6e820 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -850,6 +850,7 @@ config AVB_VERIFY depends on LIBAVB depends on MMC depends on PARTITION_UUIDS + depends on FASTBOOT help This option enables compilation of bootloader-dependent operations, used by Android Verified Boot 2.0 library (libavb). Includes:

Introduce ETH_SANDBOX_LWIP which enables a mock driver similar to ETH_SANDOX but without the dependencies on the legacy network stack (NET) so that it may be enabled when the lwIP stack (NET_LWIP) is introduced. The driver does nothing at this stage but its presence will allow dm_test_iommu_noiommu [1] to pass.

[1] ./u-boot -T -c "ut dm dm_test_iommu_noiommu"

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- drivers/net/Kconfig | 11 +++++ drivers/net/Makefile | 1 + drivers/net/sandbox-lwip.c | 85 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 97 insertions(+) create mode 100644 drivers/net/sandbox-lwip.c

diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index e7d0ddfe25a..2f39ec05ac7 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -350,6 +350,17 @@ config ETH_SANDBOX

This driver is particularly useful in the test/dm/eth.c tests

+config ETH_SANDBOX_LWIP + depends on SANDBOX + depends on NET_LWIP + default y + bool "Sandbox: Mocked Ethernet driver (for NET_LWIP)" + help + This driver is meant as a replacement for ETH_SANDBOX when + the network stack is NET_LWIP rather than NET. It currently + does nothing, i.e. it drops the sent packets and never receives + data. + config ETH_SANDBOX_RAW depends on SANDBOX default y diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 4946a63f80f..f5ab1f5dedf 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -39,6 +39,7 @@ obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac_socfpga.o obj-$(CONFIG_ETH_SANDBOX) += sandbox.o obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw-bus.o obj-$(CONFIG_ETH_SANDBOX_RAW) += sandbox-raw.o +obj-$(CONFIG_ETH_SANDBOX_LWIP) += sandbox-lwip.o obj-$(CONFIG_FEC_MXC) += fec_mxc.o obj-$(CONFIG_FMAN_ENET) += fm/ obj-$(CONFIG_FMAN_ENET) += fsl_mdio.o diff --git a/drivers/net/sandbox-lwip.c b/drivers/net/sandbox-lwip.c new file mode 100644 index 00000000000..3721033c310 --- /dev/null +++ b/drivers/net/sandbox-lwip.c @@ -0,0 +1,85 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2015 National Instruments + * + * (C) Copyright 2015 + * Joe Hershberger joe.hershberger@ni.com + */ + +#include <dm.h> +#include <log.h> +#include <malloc.h> +#include <net.h> +#include <asm/eth.h> +#include <asm/global_data.h> +#include <asm/test.h> + +DECLARE_GLOBAL_DATA_PTR; + +static int sb_lwip_eth_start(struct udevice *dev) +{ + debug("eth_sandbox_lwip: Start\n"); + + return 0; +} + +static int sb_lwip_eth_send(struct udevice *dev, void *packet, int length) +{ + debug("eth_sandbox_lwip: Send packet %d\n", length); + + return -ENOTSUPP; +} + +static int sb_lwip_eth_recv(struct udevice *dev, int flags, uchar **packetp) +{ + return -EAGAIN; +} + +static int sb_lwip_eth_free_pkt(struct udevice *dev, uchar *packet, int length) +{ + return 0; +} + +static void sb_lwip_eth_stop(struct udevice *dev) +{ +} + +static int sb_lwip_eth_write_hwaddr(struct udevice *dev) +{ + return 0; +} + +static const struct eth_ops sb_eth_ops = { + .start = sb_lwip_eth_start, + .send = sb_lwip_eth_send, + .recv = sb_lwip_eth_recv, + .free_pkt = sb_lwip_eth_free_pkt, + .stop = sb_lwip_eth_stop, + .write_hwaddr = sb_lwip_eth_write_hwaddr, +}; + +static int sb_lwip_eth_remove(struct udevice *dev) +{ + return 0; +} + +static int sb_lwip_eth_of_to_plat(struct udevice *dev) +{ + return 0; +} + +static const struct udevice_id sb_eth_ids[] = { + { .compatible = "sandbox,eth" }, + { } +}; + +U_BOOT_DRIVER(eth_sandbox) = { + .name = "eth_lwip_sandbox", + .id = UCLASS_ETH, + .of_match = sb_eth_ids, + .of_to_plat = sb_lwip_eth_of_to_plat, + .remove = sb_lwip_eth_remove, + .ops = &sb_eth_ops, + .priv_auto = 0, + .plat_auto = sizeof(struct eth_pdata), +};

Prepare the introduction of the lwIP (lightweight IP) TCP/IP stack by adding a new net/lwip/ directory and the NET_LWIP symbol. Network support is either NO_NET, NET (legacy stack) or NET_LWIP. Subsequent commits will introduce the lwIP code, re-work the NETDEVICE integration and port some of the NET commands and features to lwIP.

SPL_NET cannot be enabled when NET_LWIP=y. SPL_NET pulls some symbols that are part of NET (such as arp_init(), arp_timeout_check(), arp_receive(), net_arp_wait_packet_ip()). lwIP support in SPL may be added later.

Similarly, DFU_TFTP and FASTBOOT are not compatible with NET_LWIP because of dependencies on net_loop(), tftp_timeout_ms, tftp_timeout_count_max and other NET things. Let's add a dependency on !NET_LWIP for now.

SANDBOX can select NET_LWIP but doing so will currently disable the eth dm tests as well as the wget tests which have strong dependencies on the NET code.

Other adjustments to Kconfig files are made to fix "unmet direct dependencies detected" for USB_FUNCTION_SDP and CMD_FASTBOOT when the default networking stack is set to NET_LWIP ("default NET_LWIP" instead of "default NET" in Kconfig).

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- Kconfig | 29 ++++++++++++++++++ Makefile | 2 +- boot/Kconfig | 4 ++- cmd/Kconfig | 1 + common/Kconfig | 2 +- common/spl/Kconfig | 1 + drivers/dfu/Kconfig | 1 + drivers/fastboot/Kconfig | 1 + drivers/net/Kconfig | 3 ++ drivers/net/phy/Kconfig | 2 +- drivers/usb/gadget/Kconfig | 2 +- net/Kconfig | 61 +++++++++++++++++++------------------- net/Makefile | 4 +++ net/lwip/Kconfig | 49 ++++++++++++++++++++++++++++++ test/cmd/Makefile | 2 ++ test/dm/Makefile | 2 ++ 16 files changed, 131 insertions(+), 35 deletions(-) create mode 100644 net/lwip/Kconfig

diff --git a/Kconfig b/Kconfig index ab46b27999c..9e3a55798f9 100644 --- a/Kconfig +++ b/Kconfig @@ -752,8 +752,37 @@ source "dts/Kconfig"

source "env/Kconfig"

+menu Networking + +choice + prompt "Networking stack" + default NET + +config NO_NET + bool "No networking support" + +config NET + bool "Legacy U-Boot networking stack" + imply NETDEVICES + +config NET_LWIP + bool "Use lwIP for networking stack" + imply NETDEVICES + help + Include networking support based on the lwIP (lightweight IP) + TCP/IP stack (https://nongnu.org/lwip). This is a replacement for + the default U-Boot network stack and applications located in net/ + and enabled via CONFIG_NET as well as other pieces of code that + depend on CONFIG_NET (such as cmd/net.c enabled via CONFIG_CMD_NET). + Therefore the two symbols CONFIG_NET and CONFIG_NET_LWIP are mutually + exclusive. + +endchoice + source "net/Kconfig"

+endmenu + source "drivers/Kconfig"

source "fs/Kconfig" diff --git a/Makefile b/Makefile index 8711831767d..96211738b2f 100644 --- a/Makefile +++ b/Makefile @@ -859,7 +859,7 @@ libs-$(CONFIG_OF_EMBED) += dts/ libs-y += env/ libs-y += lib/ libs-y += fs/ -libs-y += net/ +libs-$(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)) += net/ libs-y += disk/ libs-y += drivers/ libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ diff --git a/boot/Kconfig b/boot/Kconfig index 925afe06a19..1d50a83a2d2 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -503,7 +503,8 @@ config BOOTMETH_ANDROID select ANDROID_AB select ANDROID_BOOT_IMAGE select CMD_BCB - select CMD_FASTBOOT + imply CMD_FASTBOOT + imply FASTBOOT if !NET_LWIP select PARTITION_TYPE_GUID select PARTITION_UUIDS help @@ -559,6 +560,7 @@ config BOOTMETH_EXTLINUX_PXE config BOOTMETH_EFILOADER bool "Bootdev support for EFI boot" depends on EFI_BINARY_EXEC + imply CMD_TFTPBOOT if CMD_NET default y help Enables support for EFI boot using bootdevs. This makes the diff --git a/cmd/Kconfig b/cmd/Kconfig index 5ef3c8a8748..3beddd72583 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1661,6 +1661,7 @@ config CMD_USB

config CMD_USB_SDP bool "sdp" + depends on USB_GADGET_DOWNLOAD select USB_FUNCTION_SDP help Enables the command "sdp" which is used to have U-Boot emulating the diff --git a/common/Kconfig b/common/Kconfig index c011ab6e820..90cee19d413 100644 --- a/common/Kconfig +++ b/common/Kconfig @@ -424,7 +424,7 @@ config LOGF_FUNC_PAD

config LOG_SYSLOG bool "Log output to syslog server" - depends on NET + depends on NET || NET_LWIP help Enables a log driver which broadcasts log records via UDP port 514 to syslog servers. diff --git a/common/spl/Kconfig b/common/spl/Kconfig index 137f94a1681..97bafa50c9e 100644 --- a/common/spl/Kconfig +++ b/common/spl/Kconfig @@ -1073,6 +1073,7 @@ config SPL_DM_SPI_FLASH

config SPL_NET bool "Support networking" + depends on !NET_LWIP help Enable support for network devices (such as Ethernet) in SPL. This permits SPL to load U-Boot over a network link rather than diff --git a/drivers/dfu/Kconfig b/drivers/dfu/Kconfig index aadd7e8cf7f..604386bb734 100644 --- a/drivers/dfu/Kconfig +++ b/drivers/dfu/Kconfig @@ -20,6 +20,7 @@ config DFU_WRITE_ALT config DFU_TFTP bool "DFU via TFTP" depends on NETDEVICES + depends on !NET_LWIP select UPDATE_COMMON select DFU_OVER_TFTP help diff --git a/drivers/fastboot/Kconfig b/drivers/fastboot/Kconfig index 70207573de2..1eb460f5a02 100644 --- a/drivers/fastboot/Kconfig +++ b/drivers/fastboot/Kconfig @@ -1,5 +1,6 @@ menu "Fastboot support" depends on CMDLINE + depends on !NET_LWIP

config FASTBOOT bool diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 2f39ec05ac7..9c042808b44 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -48,6 +48,7 @@ config DM_DSA bool "Enable Driver Model for DSA switches" depends on DM_MDIO depends on PHY_FIXED + depends on !NET_LWIP help Enable driver model for DSA switches

@@ -342,6 +343,7 @@ config ESSEDMA

config ETH_SANDBOX depends on SANDBOX + depends on NET default y bool "Sandbox: Mocked Ethernet driver" help @@ -363,6 +365,7 @@ config ETH_SANDBOX_LWIP

config ETH_SANDBOX_RAW depends on SANDBOX + depends on NET default y bool "Sandbox: Bridge to Linux Raw Sockets" help diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index a9efc509814..13e73810ad6 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -11,7 +11,7 @@ config MV88E6352_SWITCH

menuconfig PHYLIB bool "Ethernet PHY (physical media interface) support" - depends on NET + depends on NET || NET_LWIP help Enable Ethernet PHY (physical media interface) support.

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig index f20a16e3e7d..96ed3a2def0 100644 --- a/drivers/usb/gadget/Kconfig +++ b/drivers/usb/gadget/Kconfig @@ -224,7 +224,7 @@ endif # USB_GADGET_DOWNLOAD

config USB_ETHER bool "USB Ethernet Gadget" - depends on NET + depends on NET || NET_LWIP default y if ARCH_SUNXI && USB_MUSB_GADGET help Creates an Ethernet network device through a USB peripheral diff --git a/net/Kconfig b/net/Kconfig index 7cb80b880a9..16a9de47e94 100644 --- a/net/Kconfig +++ b/net/Kconfig @@ -2,11 +2,6 @@ # Network configuration #

-menuconfig NET - bool "Networking support" - default y - imply NETDEVICES - if NET

config ARP_TIMEOUT @@ -26,15 +21,6 @@ config PROT_UDP Enable a generic udp framework that allows defining a custom handler for udp protocol.

-config BOOTDEV_ETH - bool "Enable bootdev for ethernet" - depends on BOOTSTD - default y - help - Provide a bootdev for ethernet so that is it possible to boot - an operationg system over the network, using the PXE (Preboot - Execution Environment) protocol. - config BOOTP_SEND_HOSTNAME bool "Send hostname to DNS server" help @@ -45,15 +31,6 @@ config BOOTP_SEND_HOSTNAME of the "hostname" environment variable is passed as option 12 to the DHCP server.

-config NET_RANDOM_ETHADDR - bool "Random ethaddr if unset" - help - Selecting this will allow the Ethernet interface to function even - when the ethaddr variable for that interface is unset. In this case, - a random MAC address in the locally administered address space is - generated. It will be saved to the appropriate environment variable, - too. - config NETCONSOLE bool "NetConsole support" help @@ -255,11 +232,35 @@ config IPV6

endif # if NET

+source "net/lwip/Kconfig" + +if NET || NET_LWIP + +config BOOTDEV_ETH + bool "Enable bootdev for ethernet" + depends on BOOTSTD + default y + help + Provide a bootdev for ethernet so that is it possible to boot + an operating system over the network, using the PXE (Preboot + Execution Environment) protocol. + +config NET_RANDOM_ETHADDR + bool "Random ethaddr if unset" + help + Selecting this will allow the Ethernet interface to function even + when the ethaddr variable for that interface is unset. In this case, + a random MAC address in the locally administered address space is + generated. It will be saved to the appropriate environment variable, + too. + +endif # if NET || NET_LWIP + config SYS_RX_ETH_BUFFER - int "Number of receive packet buffers" - default 4 - help - Defines the number of Ethernet receive buffers. On some Ethernet - controllers it is recommended to set this value to 8 or even higher, - since all buffers can be full shortly after enabling the interface on - high Ethernet traffic. + int "Number of receive packet buffers" + default 4 + help + Defines the number of Ethernet receive buffers. On some Ethernet + controllers it is recommended to set this value to 8 or even higher, + since all buffers can be full shortly after enabling the interface on + high Ethernet traffic. diff --git a/net/Makefile b/net/Makefile index 64ab7ec740a..70eec8caf0d 100644 --- a/net/Makefile +++ b/net/Makefile @@ -5,6 +5,8 @@

#ccflags-y += -DDEBUG

+ifeq ($(CONFIG_NET),y) + obj-$(CONFIG_NET) += arp.o obj-$(CONFIG_CMD_BOOTP) += bootp.o obj-$(CONFIG_CMD_CDP) += cdp.o @@ -38,3 +40,5 @@ obj-$(CONFIG_CMD_WGET) += wget.o # sprintf(buf, index ? "foo%d" : "foo", index) # and this is intentional usage. CFLAGS_eth_common.o += -Wno-format-extra-args + +endif diff --git a/net/lwip/Kconfig b/net/lwip/Kconfig new file mode 100644 index 00000000000..8a67de4cf33 --- /dev/null +++ b/net/lwip/Kconfig @@ -0,0 +1,49 @@ +# +# Network configuration (with lwIP stack) +# + +if NET_LWIP + +config LWIP_DEBUG + bool "Enable debug traces in the lwIP library" + +config LWIP_ASSERT + bool "Enable assertions in the lwIP library" + +config PROT_DHCP_LWIP + bool + select PROT_UDP_LWIP + +config PROT_DNS_LWIP + bool + select PROT_UDP_LWIP + +config PROT_RAW_LWIP + bool + +config PROT_TCP_LWIP + bool + +config PROT_TCP_SACK_LWIP + bool "TCP SACK support" + depends on PROT_TCP_LWIP + default y + help + TCP protocol with selective acknowledgements. Improves + file transfer speed in wget. + +config PROT_UDP_LWIP + bool + +config LWIP_TCP_WND + int "Value of TCP_WND" + default 8000 if ARCH_QEMU + default 3000000 + help + Default value for TCP_WND in the lwIP configuration + Lower values result in slower wget transfer speeds in + general, especially when the latency on the network is high, + but QEMU with "-net user" needs no more than a few KB or the + transfer will stall and eventually time out. + +endif # NET_LWIP diff --git a/test/cmd/Makefile b/test/cmd/Makefile index 8f2134998ad..dbee9b26405 100644 --- a/test/cmd/Makefile +++ b/test/cmd/Makefile @@ -30,7 +30,9 @@ ifdef CONFIG_SANDBOX obj-$(CONFIG_CMD_MBR) += mbr.o obj-$(CONFIG_CMD_READ) += rw.o obj-$(CONFIG_CMD_SETEXPR) += setexpr.o +ifdef CONFIG_NET obj-$(CONFIG_CMD_WGET) += wget.o +endif obj-$(CONFIG_ARM_FFA_TRANSPORT) += armffa.o endif obj-$(CONFIG_CMD_TEMPERATURE) += temperature.o diff --git a/test/dm/Makefile b/test/dm/Makefile index c12589d487c..03952441278 100644 --- a/test/dm/Makefile +++ b/test/dm/Makefile @@ -48,7 +48,9 @@ obj-$(CONFIG_VIDEO_MIPI_DSI) += dsi_host.o obj-$(CONFIG_DM_DSA) += dsa.o obj-$(CONFIG_ECDSA_VERIFY) += ecdsa.o obj-$(CONFIG_EFI_MEDIA_SANDBOX) += efi_media.o +ifdef CONFIG_NET obj-$(CONFIG_DM_ETH) += eth.o +endif obj-$(CONFIG_EXTCON) += extcon.o ifneq ($(CONFIG_EFI_PARTITION),) obj-$(CONFIG_FASTBOOT_FLASH_MMC) += fastboot.o

Make net.h a wrapper which includes net-common.h and either net-legacy.h or net-lwip.h based on NET_LWIP.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- Makefile | 4 +- include/net-common.h | 501 +++++++++++++++++++++++ include/net-legacy.h | 544 +++++++++++++++++++++++++ include/net-lwip.h | 14 + include/net.h | 943 +------------------------------------------ 5 files changed, 1066 insertions(+), 940 deletions(-) create mode 100644 include/net-common.h create mode 100644 include/net-legacy.h create mode 100644 include/net-lwip.h

diff --git a/Makefile b/Makefile index 96211738b2f..0910d8692d7 100644 --- a/Makefile +++ b/Makefile @@ -836,7 +836,9 @@ UBOOTINCLUDE := \ -I$(srctree)/arch/arm/thumb1/include)) \ -I$(srctree)/arch/$(ARCH)/include \ -include $(srctree)/include/linux/kconfig.h \ - -I$(srctree)/dts/upstream/include + -I$(srctree)/dts/upstream/include \ + $(if $(CONFIG_NET_LWIP), -I$(srctree)/lib/lwip/lwip/src/include \ + -I$(srctree)/lib/lwip/u-boot)

NOSTDINC_FLAGS += -nostdinc -isystem $(shell $(CC) -print-file-name=include)

diff --git a/include/net-common.h b/include/net-common.h new file mode 100644 index 00000000000..543f528a4a4 --- /dev/null +++ b/include/net-common.h @@ -0,0 +1,501 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __NET_COMMON_H__ +#define __NET_COMMON_H__ + +#include <asm/cache.h> +#include <command.h> +#include <env.h> +#include <hexdump.h> +#include <linux/if_ether.h> +#include <linux/types.h> +#include <rand.h> +#include <time.h> + +#define DEBUG_NET_PKT_TRACE 0 /* Trace all packet data */ + +/* + * The number of receive packet buffers, and the required packet buffer + * alignment in memory. + * + */ +#define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER +#define PKTALIGN ARCH_DMA_MINALIGN + +/* IPv4 addresses are always 32 bits in size */ +struct in_addr { + __be32 s_addr; +}; + +#define PROT_IP 0x0800 /* IP protocol */ +#define PROT_ARP 0x0806 /* IP ARP protocol */ +#define PROT_WOL 0x0842 /* ether-wake WoL protocol */ +#define PROT_RARP 0x8035 /* IP ARP protocol */ +#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */ +#define PROT_IPV6 0x86dd /* IPv6 over bluebook */ +#define PROT_PPP_SES 0x8864 /* PPPoE session messages */ +#define PROT_NCSI 0x88f8 /* NC-SI control packets */ + +#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ +#define IPPROTO_TCP 6 /* Transmission Control Protocol */ +#define IPPROTO_UDP 17 /* User Datagram Protocol */ + +#define IP_OFFS 0x1fff /* ip offset *= 8 */ +#define IP_FLAGS 0xe000 /* first 3 bits */ +#define IP_FLAGS_RES 0x8000 /* reserved */ +#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */ +#define IP_FLAGS_MFRAG 0x2000 /* more fragments */ + +#define IP_HDR_SIZE (sizeof(struct ip_hdr)) + +#define IP_MIN_FRAG_DATAGRAM_SIZE (IP_HDR_SIZE + 8) + +/* + * Internet Protocol (IP) + UDP header. + */ +struct ip_udp_hdr { + u8 ip_hl_v; /* header length and version */ + u8 ip_tos; /* type of service */ + u16 ip_len; /* total length */ + u16 ip_id; /* identification */ + u16 ip_off; /* fragment offset field */ + u8 ip_ttl; /* time to live */ + u8 ip_p; /* protocol */ + u16 ip_sum; /* checksum */ + struct in_addr ip_src; /* Source IP address */ + struct in_addr ip_dst; /* Destination IP address */ + u16 udp_src; /* UDP source port */ + u16 udp_dst; /* UDP destination port */ + u16 udp_len; /* Length of UDP packet */ + u16 udp_xsum; /* Checksum */ +} __attribute__((packed)); + +#define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) +#define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) + +/* Number of packets processed together */ +#define ETH_PACKETS_BATCH_RECV 32 + +/* ARP hardware address length */ +#define ARP_HLEN 6 +/* + * The size of a MAC address in string form, each digit requires two chars + * and five separator characters to form '00:00:00:00:00:00'. + */ +#define ARP_HLEN_ASCII (ARP_HLEN * 2) + (ARP_HLEN - 1) + +#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ + +# define ARP_ETHER 1 /* Ethernet hardware address */ + +/* + * Maximum packet size; used to allocate packet storage. Use + * the maxium Ethernet frame size as specified by the Ethernet + * standard including the 802.1Q tag (VLAN tagging). + * maximum packet size = 1522 + * maximum packet size and multiple of 32 bytes = 1536 + */ +#define PKTSIZE 1522 +#ifndef CONFIG_DM_DSA +#define PKTSIZE_ALIGN 1536 +#else +/* Maximum DSA tagging overhead (headroom and/or tailroom) */ +#define DSA_MAX_OVR 256 +#define PKTSIZE_ALIGN (1536 + DSA_MAX_OVR) +#endif + +/* + * Maximum receive ring size; that is, the number of packets + * we can buffer before overflow happens. Basically, this just + * needs to be enough to prevent a packet being discarded while + * we are processing the previous one. + * Used only in drivers/net/mvgbe.c. + */ +#define RINGSZ 4 +#define RINGSZ_LOG2 2 + +extern int net_restart_wrap; /* Tried all network devices */ +extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ +extern const u8 net_bcast_ethaddr[ARP_HLEN]; /* Ethernet broadcast address */ +extern char net_boot_file_name[1024];/* Boot File name */ + +/** + * compute_ip_checksum() - Compute IP checksum + * + * @addr: Address to check (must be 16-bit aligned) + * @nbytes: Number of bytes to check (normally a multiple of 2) + * Return: 16-bit IP checksum + */ +unsigned compute_ip_checksum(const void *addr, unsigned nbytes); + +/** + * ip_checksum_ok() - check if a checksum is correct + * + * This works by making sure the checksum sums to 0 + * + * @addr: Address to check (must be 16-bit aligned) + * @nbytes: Number of bytes to check (normally a multiple of 2) + * Return: true if the checksum matches, false if not + */ +int ip_checksum_ok(const void *addr, unsigned nbytes); + +/** + * add_ip_checksums() - add two IP checksums + * + * @offset: Offset of first sum (if odd we do a byte-swap) + * @sum: First checksum + * @new_sum: New checksum to add + * Return: updated 16-bit IP checksum + */ +unsigned add_ip_checksums(unsigned offset, unsigned sum, unsigned new_sum); + +/* + * The devname can be either an exact name given by the driver or device tree + * or it can be an alias of the form "eth%d" + */ +struct udevice *eth_get_dev_by_name(const char *devname); +int eth_is_active(struct udevice *dev); /* Test device for active state */ + +/* + * Get the hardware address for an ethernet interface . + * Args: + * base_name - base name for device (normally "eth") + * index - device index number (0 for first) + * enetaddr - returns 6 byte hardware address + * Returns: + * Return true if the address is valid. + */ +int eth_env_get_enetaddr_by_index(const char *base_name, int index, + uchar *enetaddr); + +/** + * eth_env_set_enetaddr_by_index() - set the MAC address environment variable + * + * This sets up an environment variable with the given MAC address (@enetaddr). + * The environment variable to be set is defined by <@base_name><@index>addr. + * If @index is 0 it is omitted. For common Ethernet this means ethaddr, + * eth1addr, etc. + * + * @base_name: Base name for variable, typically "eth" + * @index: Index of interface being updated (>=0) + * @enetaddr: Pointer to MAC address to put into the variable + * Return: 0 if OK, other value on error + */ +int eth_env_set_enetaddr_by_index(const char *base_name, int index, + uchar *enetaddr); + +/* + * Initialize USB ethernet device with CONFIG_DM_ETH + * Returns: + * 0 is success, non-zero is error status. + */ +int usb_ether_init(void); + +int eth_init(void); /* Initialize the device */ +int eth_send(void *packet, int length); /* Send a packet */ +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) +int eth_receive(void *packet, int length); /* Receive a packet*/ +extern void (*push_packet)(void *packet, int length); +#endif +int eth_rx(void); /* Check for received packets */ + +/** + * reset_phy() - Reset the Ethernet PHY + * + * This should be implemented by boards if CONFIG_RESET_PHY_R is enabled + */ +void reset_phy(void); + +#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP) +/** + * eth_set_enable_bootdevs() - Enable or disable binding of Ethernet bootdevs + * + * These get in the way of bootstd testing, so are normally disabled by tests. + * This provide control of this setting. It only affects binding of Ethernet + * devices, so if that has already happened, this flag does nothing. + * + * @enable: true to enable binding of bootdevs when binding new Ethernet + * devices, false to disable it + */ +void eth_set_enable_bootdevs(bool enable); +#else +static inline void eth_set_enable_bootdevs(bool enable) {} +#endif + +static inline void net_send_packet(uchar *pkt, int len) +{ + if (DEBUG_NET_PKT_TRACE) + print_hex_dump_bytes("tx: ", DUMP_PREFIX_OFFSET, pkt, len); + /* Currently no way to return errors from eth_send() */ + (void) eth_send(pkt, len); +} + +enum eth_recv_flags { + /* + * Check hardware device for new packets (otherwise only return those + * which are already in the memory buffer ready to process) + */ + ETH_RECV_CHECK_DEVICE = 1 << 0, +}; + +/** + * struct eth_ops - functions of Ethernet MAC controllers + * + * start: Prepare the hardware to send and receive packets + * send: Send the bytes passed in "packet" as a packet on the wire + * recv: Check if the hardware received a packet. If so, set the pointer to the + * packet buffer in the packetp parameter. If not, return an error or 0 to + * indicate that the hardware receive FIFO is empty. If 0 is returned, the + * network stack will not process the empty packet, but free_pkt() will be + * called if supplied + * free_pkt: Give the driver an opportunity to manage its packet buffer memory + * when the network stack is finished processing it. This will only be + * called when no error was returned from recv - optional + * stop: Stop the hardware from looking for packets - may be called even if + * state == PASSIVE + * mcast: Join or leave a multicast group (for TFTP) - optional + * write_hwaddr: Write a MAC address to the hardware (used to pass it to Linux + * on some platforms like ARM). This function expects the + * eth_pdata::enetaddr field to be populated. The method can + * return -ENOSYS to indicate that this is not implemented for + this hardware - optional. + * read_rom_hwaddr: Some devices have a backup of the MAC address stored in a + * ROM on the board. This is how the driver should expose it + * to the network stack. This function should fill in the + * eth_pdata::enetaddr field - optional + * set_promisc: Enable or Disable promiscuous mode + * get_sset_count: Number of statistics counters + * get_string: Names of the statistic counters + * get_stats: The values of the statistic counters + */ +struct eth_ops { + int (*start)(struct udevice *dev); + int (*send)(struct udevice *dev, void *packet, int length); + int (*recv)(struct udevice *dev, int flags, uchar **packetp); + int (*free_pkt)(struct udevice *dev, uchar *packet, int length); + void (*stop)(struct udevice *dev); + int (*mcast)(struct udevice *dev, const u8 *enetaddr, int join); + int (*write_hwaddr)(struct udevice *dev); + int (*read_rom_hwaddr)(struct udevice *dev); + int (*set_promisc)(struct udevice *dev, bool enable); + int (*get_sset_count)(struct udevice *dev); + void (*get_strings)(struct udevice *dev, u8 *data); + void (*get_stats)(struct udevice *dev, u64 *data); +}; + +#define eth_get_ops(dev) ((struct eth_ops *)(dev)->driver->ops) + +struct udevice *eth_get_dev(void); /* get the current device */ +unsigned char *eth_get_ethaddr(void); /* get the current device MAC */ +int eth_rx(void); /* Check for received packets */ +void eth_halt(void); /* stop SCC */ +const char *eth_get_name(void); /* get name of current device */ +int eth_get_dev_index(void); + +int eth_initialize(void); /* Initialize network subsystem */ +void eth_try_another(int first_restart); /* Change the device */ +void eth_set_current(void); /* set nterface to ethcur var */ + +enum eth_state_t { + ETH_STATE_INIT, + ETH_STATE_PASSIVE, + ETH_STATE_ACTIVE +}; + +/** + * struct eth_pdata - Platform data for Ethernet MAC controllers + * + * @iobase: The base address of the hardware registers + * @enetaddr: The Ethernet MAC address that is loaded from EEPROM or env + * @phy_interface: PHY interface to use - see PHY_INTERFACE_MODE_... + * @max_speed: Maximum speed of Ethernet connection supported by MAC + * @priv_pdata: device specific plat + */ +struct eth_pdata { + phys_addr_t iobase; + unsigned char enetaddr[ARP_HLEN]; + int phy_interface; + int max_speed; + void *priv_pdata; +}; + +struct ethernet_hdr { + u8 et_dest[ARP_HLEN]; /* Destination node */ + u8 et_src[ARP_HLEN]; /* Source node */ + u16 et_protlen; /* Protocol or length */ +} __attribute__((packed)); + +/* Ethernet header size */ +#define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr)) + +/** + * net_random_ethaddr - Generate software assigned random Ethernet address + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Generate a random Ethernet address (MAC) that is not multicast + * and has the local assigned bit set. + */ +static inline void net_random_ethaddr(uchar *addr) +{ + int i; + unsigned int seed = get_ticks(); + + for (i = 0; i < 6; i++) + addr[i] = rand_r(&seed); + + addr[0] &= 0xfe; /* clear multicast bit */ + addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ +} + +/** + * is_zero_ethaddr - Determine if give Ethernet address is all zeros. + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Return true if the address is all zeroes. + */ +static inline int is_zero_ethaddr(const u8 *addr) +{ + return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); +} + +/** + * is_multicast_ethaddr - Determine if the Ethernet address is a multicast. + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Return true if the address is a multicast address. + * By definition the broadcast address is also a multicast address. + */ +static inline int is_multicast_ethaddr(const u8 *addr) +{ + return 0x01 & addr[0]; +} + +/* + * is_broadcast_ethaddr - Determine if the Ethernet address is broadcast + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Return true if the address is the broadcast address. + */ +static inline int is_broadcast_ethaddr(const u8 *addr) +{ + return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == + 0xff; +} + +/* + * is_valid_ethaddr - Determine if the given Ethernet address is valid + * @addr: Pointer to a six-byte array containing the Ethernet address + * + * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not + * a multicast address, and is not FF:FF:FF:FF:FF:FF. + * + * Return true if the address is valid. + */ +static inline int is_valid_ethaddr(const u8 *addr) +{ + /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to + * explicitly check for it here. */ + return !is_multicast_ethaddr(addr) && !is_zero_ethaddr(addr); +} + +/** + * string_to_enetaddr() - Parse a MAC address + * + * Convert a string MAC address + * + * Implemented in lib/net_utils.c (built unconditionally) + * + * @addr: MAC address in aa:bb:cc:dd:ee:ff format, where each part is a 2-digit + * hex value + * @enetaddr: Place to put MAC address (6 bytes) + */ +void string_to_enetaddr(const char *addr, uint8_t *enetaddr); + +/** + * string_to_ip() - Convert a string to ip address + * + * Implemented in lib/net_utils.c (built unconditionally) + * + * @s: Input string to parse + * @return: in_addr struct containing the parsed IP address + */ +struct in_addr string_to_ip(const char *s); + +/* copy a filename (allow for "..." notation, limit length) */ +void copy_filename(char *dst, const char *src, int size); + +/* Processes a received packet */ +void net_process_received_packet(uchar *in_packet, int len); + +/** + * update_tftp - Update firmware over TFTP (via DFU) + * + * This function updates board's firmware via TFTP + * + * @param addr - memory address where data is stored + * @param interface - the DFU medium name - e.g. "mmc" + * @param devstring - the DFU medium number - e.g. "1" + * + * Return: - 0 on success, other value on failure + */ +int update_tftp(ulong addr, char *interface, char *devstring); + +/** + * env_get_ip() - Convert an environment value to to an ip address + * + * @var: Environment variable to convert. The value of this variable must be + * in the format format a.b.c.d, where each value is a decimal number from + * 0 to 255 + * Return: IP address, or 0 if invalid + */ +static inline struct in_addr env_get_ip(char *var) +{ + return string_to_ip(env_get(var)); +} + +int net_init(void); + +/** + * dhcp_run() - Run DHCP on the current ethernet device + * + * This sets the autoload variable, then puts it back to similar to its original + * state (y, n or unset). + * + * @addr: Address to load the file into (0 if @autoload is false) + * @fname: Filename of file to load (NULL if @autoload is false or to use the + * default filename) + * @autoload: true to load the file, false to just get the network IP + * @return 0 if OK, -EINVAL if the environment failed, -ENOENT if ant file was + * not found + */ +int dhcp_run(ulong addr, const char *fname, bool autoload); + +/** + * do_tftpb - Run the tftpboot command + * + * @cmdtp: Command information for tftpboot + * @flag: Command flags (CMD_FLAG_...) + * @argc: Number of arguments + * @argv: List of arguments + * Return: result (see enum command_ret_t) + */ +int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); + +/** + * wget_with_dns() - runs dns host IP address resulution before wget + * + * @dst_addr: destination address to download the file + * @uri: uri string of target file of wget + * Return: downloaded file size, negative if failed + */ +int wget_with_dns(ulong dst_addr, char *uri); +/** + * wget_validate_uri() - varidate the uri + * + * @uri: uri string of target file of wget + * Return: true if uri is valid, false if uri is invalid + */ +bool wget_validate_uri(char *uri); +//int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]); + +#endif /* __NET_COMMON_H__ */ diff --git a/include/net-legacy.h b/include/net-legacy.h new file mode 100644 index 00000000000..19c991e12f6 --- /dev/null +++ b/include/net-legacy.h @@ -0,0 +1,544 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * LiMon Monitor (LiMon) - Network. + * + * Copyright 1994 - 2000 Neil Russell. + * (See License) + * + * History + * 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added + */ + +#ifndef __NET_LEGACY_H__ +#define __NET_LEGACY_H__ + +#include <linux/types.h> +#include <asm/byteorder.h> /* for nton* / ntoh* stuff */ +#include <log.h> +#include <time.h> +#include <linux/if_ether.h> + +struct bd_info; +struct cmd_tbl; +struct udevice; + +#define DEBUG_LL_STATE 0 /* Link local state machine changes */ +#define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */ +#define DEBUG_NET_PKT 0 /* Packets on info on the network at large */ +#define DEBUG_INT_STATE 0 /* Internal network state changes */ + +/* ARP hardware address length */ +#define ARP_HLEN 6 +/* + * The size of a MAC address in string form, each digit requires two chars + * and five separator characters to form '00:00:00:00:00:00'. + */ +#define ARP_HLEN_ASCII (ARP_HLEN * 2) + (ARP_HLEN - 1) + +/** + * An incoming packet handler. + * @param pkt pointer to the application packet + * @param dport destination UDP port + * @param sip source IP address + * @param sport source UDP port + * @param len packet length + */ +typedef void rxhand_f(uchar *pkt, unsigned dport, + struct in_addr sip, unsigned sport, + unsigned len); + +/** + * An incoming ICMP packet handler. + * @param type ICMP type + * @param code ICMP code + * @param dport destination UDP port + * @param sip source IP address + * @param sport source UDP port + * @param pkt pointer to the ICMP packet data + * @param len packet length + */ +typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport, + struct in_addr sip, unsigned sport, uchar *pkt, unsigned len); + +/* + * A timeout handler. Called after time interval has expired. + */ +typedef void thand_f(void); + +/* + * The devname can be either an exact name given by the driver or device tree + * or it can be an alias of the form "eth%d" + */ +struct udevice *eth_get_dev_by_name(const char *devname); +int eth_init_state_only(void); /* Set active state */ +void eth_halt_state_only(void); /* Set passive state */ + +/** + * eth_env_set_enetaddr_by_index() - set the MAC address environment variable + * + * This sets up an environment variable with the given MAC address (@enetaddr). + * The environment variable to be set is defined by <@base_name><@index>addr. + * If @index is 0 it is omitted. For common Ethernet this means ethaddr, + * eth1addr, etc. + * + * @base_name: Base name for variable, typically "eth" + * @index: Index of interface being updated (>=0) + * @enetaddr: Pointer to MAC address to put into the variable + * Return: 0 if OK, other value on error + */ +int eth_env_set_enetaddr_by_index(const char *base_name, int index, + uchar *enetaddr); + +/* + * Get the hardware address for an ethernet interface . + * Args: + * base_name - base name for device (normally "eth") + * index - device index number (0 for first) + * enetaddr - returns 6 byte hardware address + * Returns: + * Return true if the address is valid. + */ +int eth_env_get_enetaddr_by_index(const char *base_name, int index, + uchar *enetaddr); + +int eth_send(void *packet, int length); /* Send a packet */ + +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) +int eth_receive(void *packet, int length); /* Receive a packet*/ +extern void (*push_packet)(void *packet, int length); +#endif +int eth_mcast_join(struct in_addr mcast_addr, int join); + +/**********************************************************************/ +/* + * Protocol headers. + */ + +#define ETH_FCS_LEN 4 /* Octets in the FCS */ + +struct e802_hdr { + u8 et_dest[ARP_HLEN]; /* Destination node */ + u8 et_src[ARP_HLEN]; /* Source node */ + u16 et_protlen; /* Protocol or length */ + u8 et_dsap; /* 802 DSAP */ + u8 et_ssap; /* 802 SSAP */ + u8 et_ctl; /* 802 control */ + u8 et_snap1; /* SNAP */ + u8 et_snap2; + u8 et_snap3; + u16 et_prot; /* 802 protocol */ +} __attribute__((packed)); + +/* 802 + SNAP + ethernet header size */ +#define E802_HDR_SIZE (sizeof(struct e802_hdr)) + +/* + * Virtual LAN Ethernet header + */ +struct vlan_ethernet_hdr { + u8 vet_dest[ARP_HLEN]; /* Destination node */ + u8 vet_src[ARP_HLEN]; /* Source node */ + u16 vet_vlan_type; /* PROT_VLAN */ + u16 vet_tag; /* TAG of VLAN */ + u16 vet_type; /* protocol type */ +} __attribute__((packed)); + +/* VLAN Ethernet header size */ +#define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr)) + +/* + * Internet Protocol (IP) header. + */ +struct ip_hdr { + u8 ip_hl_v; /* header length and version */ + u8 ip_tos; /* type of service */ + u16 ip_len; /* total length */ + u16 ip_id; /* identification */ + u16 ip_off; /* fragment offset field */ + u8 ip_ttl; /* time to live */ + u8 ip_p; /* protocol */ + u16 ip_sum; /* checksum */ + struct in_addr ip_src; /* Source IP address */ + struct in_addr ip_dst; /* Destination IP address */ +} __attribute__((packed)); + +#define IP_OFFS 0x1fff /* ip offset *= 8 */ +#define IP_FLAGS 0xe000 /* first 3 bits */ +#define IP_FLAGS_RES 0x8000 /* reserved */ +#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */ +#define IP_FLAGS_MFRAG 0x2000 /* more fragments */ + +#define IP_HDR_SIZE (sizeof(struct ip_hdr)) + +#define IP_MIN_FRAG_DATAGRAM_SIZE (IP_HDR_SIZE + 8) + +/* + * Address Resolution Protocol (ARP) header. + */ +struct arp_hdr { + u16 ar_hrd; /* Format of hardware address */ +# define ARP_ETHER 1 /* Ethernet hardware address */ + u16 ar_pro; /* Format of protocol address */ + u8 ar_hln; /* Length of hardware address */ + u8 ar_pln; /* Length of protocol address */ +# define ARP_PLEN 4 + u16 ar_op; /* Operation */ +# define ARPOP_REQUEST 1 /* Request to resolve address */ +# define ARPOP_REPLY 2 /* Response to previous request */ + +# define RARPOP_REQUEST 3 /* Request to resolve address */ +# define RARPOP_REPLY 4 /* Response to previous request */ + + /* + * The remaining fields are variable in size, according to + * the sizes above, and are defined as appropriate for + * specific hardware/protocol combinations. + */ + u8 ar_data[0]; +#define ar_sha ar_data[0] +#define ar_spa ar_data[ARP_HLEN] +#define ar_tha ar_data[ARP_HLEN + ARP_PLEN] +#define ar_tpa ar_data[ARP_HLEN + ARP_PLEN + ARP_HLEN] +#if 0 + u8 ar_sha[]; /* Sender hardware address */ + u8 ar_spa[]; /* Sender protocol address */ + u8 ar_tha[]; /* Target hardware address */ + u8 ar_tpa[]; /* Target protocol address */ +#endif /* 0 */ +} __attribute__((packed)); + + +/* + * ICMP stuff (just enough to handle (host) redirect messages) + */ +#define ICMP_ECHO_REPLY 0 /* Echo reply */ +#define ICMP_NOT_REACH 3 /* Detination unreachable */ +#define ICMP_REDIRECT 5 /* Redirect (change route) */ +#define ICMP_ECHO_REQUEST 8 /* Echo request */ + +/* Codes for REDIRECT. */ +#define ICMP_REDIR_NET 0 /* Redirect Net */ +#define ICMP_REDIR_HOST 1 /* Redirect Host */ + +/* Codes for NOT_REACH */ +#define ICMP_NOT_REACH_PORT 3 /* Port unreachable */ + +struct icmp_hdr { + u8 type; + u8 code; + u16 checksum; + union { + struct { + u16 id; + u16 sequence; + } echo; + u32 gateway; + struct { + u16 unused; + u16 mtu; + } frag; + u8 data[0]; + } un; +} __attribute__((packed)); + +#define ICMP_HDR_SIZE (sizeof(struct icmp_hdr)) +#define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE) + +/* + * Maximum packet size; used to allocate packet storage. Use + * the maxium Ethernet frame size as specified by the Ethernet + * standard including the 802.1Q tag (VLAN tagging). + * maximum packet size = 1522 + * maximum packet size and multiple of 32 bytes = 1536 + */ +#define PKTSIZE 1522 +#ifndef CONFIG_DM_DSA +#define PKTSIZE_ALIGN 1536 +#else +/* Maximum DSA tagging overhead (headroom and/or tailroom) */ +#define DSA_MAX_OVR 256 +#define PKTSIZE_ALIGN (1536 + DSA_MAX_OVR) +#endif + +/**********************************************************************/ +/* + * Globals. + * + * Note: + * + * All variables of type struct in_addr are stored in NETWORK byte order + * (big endian). + */ + +/* net.c */ +/** BOOTP EXTENTIONS **/ +extern struct in_addr net_gateway; /* Our gateway IP address */ +extern struct in_addr net_netmask; /* Our subnet mask (0 = unknown) */ +/* Our Domain Name Server (0 = unknown) */ +extern struct in_addr net_dns_server; +#if defined(CONFIG_BOOTP_DNS2) +/* Our 2nd Domain Name Server (0 = unknown) */ +extern struct in_addr net_dns_server2; +#endif +extern char net_nis_domain[32]; /* Our IS domain */ +extern char net_hostname[32]; /* Our hostname */ +#ifdef CONFIG_NET +extern char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN]; /* Our root path */ +#endif +/* Indicates whether the pxe path prefix / config file was specified in dhcp option */ +extern char *pxelinux_configfile; +/** END OF BOOTP EXTENTIONS **/ +extern u8 net_ethaddr[ARP_HLEN]; /* Our ethernet address */ +extern u8 net_server_ethaddr[ARP_HLEN]; /* Boot server enet address */ +extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ +extern struct in_addr net_server_ip; /* Server IP addr (0 = unknown) */ +extern uchar *net_tx_packet; /* THE transmit packet */ +extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ +extern uchar *net_rx_packet; /* Current receive packet */ +extern int net_rx_packet_len; /* Current rx packet length */ +extern const u8 net_null_ethaddr[ARP_HLEN]; + +#define VLAN_NONE 4095 /* untagged */ +#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */ +extern ushort net_our_vlan; /* Our VLAN */ +extern ushort net_native_vlan; /* Our Native VLAN */ + +extern int net_restart_wrap; /* Tried all network devices */ + +enum proto_t { + BOOTP, RARP, ARP, TFTPGET, DHCP, DHCP6, PING, PING6, DNS, NFS, CDP, + NETCONS, SNTP, TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT_UDP, FASTBOOT_TCP, + WOL, UDP, NCSI, WGET, RS +}; +/* Indicates whether the file name was specified on the command line */ +extern bool net_boot_file_name_explicit; +/* The actual transferred size of the bootfile (in bytes) */ +extern u32 net_boot_file_size; +/* Boot file size in blocks as reported by the DHCP server */ +extern u32 net_boot_file_expected_size_in_blocks; + +#if defined(CONFIG_CMD_DNS) +extern char *net_dns_resolve; /* The host to resolve */ +extern char *net_dns_env_var; /* the env var to put the ip into */ +#endif + +#if defined(CONFIG_CMD_PING) +extern struct in_addr net_ping_ip; /* the ip address to ping */ +#endif + +#if defined(CONFIG_CMD_CDP) +/* when CDP completes these hold the return values */ +extern ushort cdp_native_vlan; /* CDP returned native VLAN */ +extern ushort cdp_appliance_vlan; /* CDP returned appliance VLAN */ + +/* + * Check for a CDP packet by examining the received MAC address field + */ +static inline int is_cdp_packet(const uchar *ethaddr) +{ + extern const u8 net_cdp_ethaddr[ARP_HLEN]; + + return memcmp(ethaddr, net_cdp_ethaddr, ARP_HLEN) == 0; +} +#endif + +#if defined(CONFIG_CMD_SNTP) +extern struct in_addr net_ntp_server; /* the ip address to NTP */ +extern int net_ntp_time_offset; /* offset time from UTC */ +#endif + +int net_loop(enum proto_t); + +/* Load failed. Start again. */ +int net_start_again(void); + +/* Get size of the ethernet header when we send */ +int net_eth_hdr_size(void); + +/* Set ethernet header; returns the size of the header */ +int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot); +int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot); + +/* Set IP header */ +void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source, + u16 pkt_len, u8 proto); +void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, + int sport, int len); + +/* Callbacks */ +rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */ +void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */ +rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */ +void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */ +bool arp_is_waiting(void); /* Waiting for ARP reply? */ +void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */ +void net_set_timeout_handler(ulong, thand_f *);/* Set timeout handler */ + +/* Network loop state */ +enum net_loop_state { + NETLOOP_CONTINUE, + NETLOOP_RESTART, + NETLOOP_SUCCESS, + NETLOOP_FAIL +}; +extern enum net_loop_state net_state; + +static inline void net_set_state(enum net_loop_state state) +{ + debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state); + net_state = state; +} + +/* + * net_get_async_tx_pkt_buf - Get a packet buffer that is not in use for + * sending an asynchronous reply + * + * returns - ptr to packet buffer + */ +uchar * net_get_async_tx_pkt_buf(void); + +/** + * net_send_ip_packet() - Transmit "net_tx_packet" as UDP or TCP packet, + * send ARP request if needed (ether will be populated) + * @ether: Raw packet buffer + * @dest: IP address to send the datagram to + * @dport: Destination UDP port + * @sport: Source UDP port + * @payload_len: Length of data after the UDP header + * @action: TCP action to be performed + * @tcp_seq_num: TCP sequence number of this transmission + * @tcp_ack_num: TCP stream acknolegement number + * + * Return: 0 on success, other value on failure + */ +int net_send_ip_packet(uchar *ether, struct in_addr dest, int dport, int sport, + int payload_len, int proto, u8 action, u32 tcp_seq_num, + u32 tcp_ack_num); +/** + * net_send_tcp_packet() - Transmit TCP packet. + * @payload_len: length of payload + * @dport: Destination TCP port + * @sport: Source TCP port + * @action: TCP action to be performed + * @tcp_seq_num: TCP sequence number of this transmission + * @tcp_ack_num: TCP stream acknolegement number + * + * Return: 0 on success, other value on failure + */ +int net_send_tcp_packet(int payload_len, int dport, int sport, u8 action, + u32 tcp_seq_num, u32 tcp_ack_num); +int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, + int sport, int payload_len); + +#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) +void nc_start(void); +int nc_input_packet(uchar *pkt, struct in_addr src_ip, unsigned dest_port, + unsigned src_port, unsigned len); +#endif + +static __always_inline int eth_is_on_demand_init(void) +{ +#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) + extern enum proto_t net_loop_last_protocol; + + return net_loop_last_protocol != NETCONS; +#else + return 1; +#endif +} + +static inline void eth_set_last_protocol(int protocol) +{ +#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) + extern enum proto_t net_loop_last_protocol; + + net_loop_last_protocol = protocol; +#endif +} + +/* + * Check if autoload is enabled. If so, use either NFS or TFTP to download + * the boot file. + */ +void net_auto_load(void); + +/* + * The following functions are a bit ugly, but necessary to deal with + * alignment restrictions on ARM. + * + * We're using inline functions, which had the smallest memory + * footprint in our tests. + */ +/* return IP *in network byteorder* */ +static inline struct in_addr net_read_ip(void *from) +{ + struct in_addr ip; + + memcpy((void *)&ip, (void *)from, sizeof(ip)); + return ip; +} + +/* return ulong *in network byteorder* */ +static inline u32 net_read_u32(void *from) +{ + u32 l; + + memcpy((void *)&l, (void *)from, sizeof(l)); + return l; +} + +/* write IP *in network byteorder* */ +static inline void net_write_ip(void *to, struct in_addr ip) +{ + memcpy(to, (void *)&ip, sizeof(ip)); +} + +/* copy IP */ +static inline void net_copy_ip(void *to, void *from) +{ + memcpy((void *)to, from, sizeof(struct in_addr)); +} + +/* copy ulong */ +static inline void net_copy_u32(void *to, void *from) +{ + memcpy((void *)to, (void *)from, sizeof(u32)); +} + +/* Convert an IP address to a string */ +void ip_to_string(struct in_addr x, char *s); + +/** + * string_to_ip() - Convert a string to ip address + * + * Implemented in lib/net_utils.c (built unconditionally) + * + * @s: Input string to parse + * @return: in_addr struct containing the parsed IP address + */ +struct in_addr string_to_ip(const char *s); + +/* Convert a VLAN id to a string */ +void vlan_to_string(ushort x, char *s); + +/* Convert a string to a vlan id */ +ushort string_to_vlan(const char *s); + +/* read a VLAN id from an environment variable */ +ushort env_get_vlan(char *); + +/* check if serverip is specified in filename from the command line */ +int is_serverip_in_cmd(void); + +/** + * net_parse_bootfile - Parse the bootfile env var / cmd line param + * + * @param ipaddr - a pointer to the ipaddr to populate if included in bootfile + * @param filename - a pointer to the string to save the filename part + * @param max_len - The longest - 1 that the filename part can be + * + * return 1 if parsed, 0 if bootfile is empty + */ +int net_parse_bootfile(struct in_addr *ipaddr, char *filename, int max_len); + +#endif /* __NET_LEGACY_H__ */ diff --git a/include/net-lwip.h b/include/net-lwip.h new file mode 100644 index 00000000000..5c3f9e7e86c --- /dev/null +++ b/include/net-lwip.h @@ -0,0 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ + +#ifndef __NET_LWIP_H__ +#define __NET_LWIP_H__ + +#include <lwip/ip4.h> +#include <lwip/netif.h> + +struct netif *net_lwip_new_netif(struct udevice *udev); +struct netif *net_lwip_new_netif_noip(struct udevice *udev); +void net_lwip_remove_netif(struct netif *netif); +struct netif *net_lwip_get_netif(void); + +#endif /* __NET_LWIP_H__ */ diff --git a/include/net.h b/include/net.h index bb2ae20f52a..afa46f239ee 100644 --- a/include/net.h +++ b/include/net.h @@ -1,949 +1,14 @@ /* SPDX-License-Identifier: GPL-2.0 */ -/* - * LiMon Monitor (LiMon) - Network. - * - * Copyright 1994 - 2000 Neil Russell. - * (See License) - * - * History - * 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added - */

#ifndef __NET_H__ #define __NET_H__

-#include <linux/types.h> -#include <asm/cache.h> -#include <asm/byteorder.h> /* for nton* / ntoh* stuff */ -#include <env.h> -#include <hexdump.h> -#include <log.h> -#include <time.h> -#include <linux/if_ether.h> -#include <rand.h> +#include <net-common.h>

-struct bd_info; -struct cmd_tbl; -struct udevice; - -#define DEBUG_LL_STATE 0 /* Link local state machine changes */ -#define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */ -#define DEBUG_NET_PKT 0 /* Packets on info on the network at large */ -#define DEBUG_INT_STATE 0 /* Internal network state changes */ -#define DEBUG_NET_PKT_TRACE 0 /* Trace all packet data */ - -/* - * The number of receive packet buffers, and the required packet buffer - * alignment in memory. - * - */ -#define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER -#define PKTALIGN ARCH_DMA_MINALIGN - -/* Number of packets processed together */ -#define ETH_PACKETS_BATCH_RECV 32 - -/* ARP hardware address length */ -#define ARP_HLEN 6 -/* - * The size of a MAC address in string form, each digit requires two chars - * and five separator characters to form '00:00:00:00:00:00'. - */ -#define ARP_HLEN_ASCII (ARP_HLEN * 2) + (ARP_HLEN - 1) - -/* IPv4 addresses are always 32 bits in size */ -struct in_addr { - __be32 s_addr; -}; - -/** - * do_tftpb - Run the tftpboot command - * - * @cmdtp: Command information for tftpboot - * @flag: Command flags (CMD_FLAG_...) - * @argc: Number of arguments - * @argv: List of arguments - * Return: result (see enum command_ret_t) - */ -int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); - -/** - * dhcp_run() - Run DHCP on the current ethernet device - * - * This sets the autoload variable, then puts it back to similar to its original - * state (y, n or unset). - * - * @addr: Address to load the file into (0 if @autoload is false) - * @fname: Filename of file to load (NULL if @autoload is false or to use the - * default filename) - * @autoload: true to load the file, false to just get the network IP - * @return 0 if OK, -EINVAL if the environment failed, -ENOENT if ant file was - * not found - */ -int dhcp_run(ulong addr, const char *fname, bool autoload); - -/** - * An incoming packet handler. - * @param pkt pointer to the application packet - * @param dport destination UDP port - * @param sip source IP address - * @param sport source UDP port - * @param len packet length - */ -typedef void rxhand_f(uchar *pkt, unsigned dport, - struct in_addr sip, unsigned sport, - unsigned len); - -/** - * An incoming ICMP packet handler. - * @param type ICMP type - * @param code ICMP code - * @param dport destination UDP port - * @param sip source IP address - * @param sport source UDP port - * @param pkt pointer to the ICMP packet data - * @param len packet length - */ -typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport, - struct in_addr sip, unsigned sport, uchar *pkt, unsigned len); - -/* - * A timeout handler. Called after time interval has expired. - */ -typedef void thand_f(void); - -enum eth_state_t { - ETH_STATE_INIT, - ETH_STATE_PASSIVE, - ETH_STATE_ACTIVE -}; - -/** - * struct eth_pdata - Platform data for Ethernet MAC controllers - * - * @iobase: The base address of the hardware registers - * @enetaddr: The Ethernet MAC address that is loaded from EEPROM or env - * @phy_interface: PHY interface to use - see PHY_INTERFACE_MODE_... - * @max_speed: Maximum speed of Ethernet connection supported by MAC - * @priv_pdata: device specific plat - */ -struct eth_pdata { - phys_addr_t iobase; - unsigned char enetaddr[ARP_HLEN]; - int phy_interface; - int max_speed; - void *priv_pdata; -}; - -enum eth_recv_flags { - /* - * Check hardware device for new packets (otherwise only return those - * which are already in the memory buffer ready to process) - */ - ETH_RECV_CHECK_DEVICE = 1 << 0, -}; - -/** - * struct eth_ops - functions of Ethernet MAC controllers - * - * start: Prepare the hardware to send and receive packets - * send: Send the bytes passed in "packet" as a packet on the wire - * recv: Check if the hardware received a packet. If so, set the pointer to the - * packet buffer in the packetp parameter. If not, return an error or 0 to - * indicate that the hardware receive FIFO is empty. If 0 is returned, the - * network stack will not process the empty packet, but free_pkt() will be - * called if supplied - * free_pkt: Give the driver an opportunity to manage its packet buffer memory - * when the network stack is finished processing it. This will only be - * called when no error was returned from recv - optional - * stop: Stop the hardware from looking for packets - may be called even if - * state == PASSIVE - * mcast: Join or leave a multicast group (for TFTP) - optional - * write_hwaddr: Write a MAC address to the hardware (used to pass it to Linux - * on some platforms like ARM). This function expects the - * eth_pdata::enetaddr field to be populated. The method can - * return -ENOSYS to indicate that this is not implemented for - this hardware - optional. - * read_rom_hwaddr: Some devices have a backup of the MAC address stored in a - * ROM on the board. This is how the driver should expose it - * to the network stack. This function should fill in the - * eth_pdata::enetaddr field - optional - * set_promisc: Enable or Disable promiscuous mode - * get_sset_count: Number of statistics counters - * get_string: Names of the statistic counters - * get_stats: The values of the statistic counters - */ -struct eth_ops { - int (*start)(struct udevice *dev); - int (*send)(struct udevice *dev, void *packet, int length); - int (*recv)(struct udevice *dev, int flags, uchar **packetp); - int (*free_pkt)(struct udevice *dev, uchar *packet, int length); - void (*stop)(struct udevice *dev); - int (*mcast)(struct udevice *dev, const u8 *enetaddr, int join); - int (*write_hwaddr)(struct udevice *dev); - int (*read_rom_hwaddr)(struct udevice *dev); - int (*set_promisc)(struct udevice *dev, bool enable); - int (*get_sset_count)(struct udevice *dev); - void (*get_strings)(struct udevice *dev, u8 *data); - void (*get_stats)(struct udevice *dev, u64 *data); -}; - -#define eth_get_ops(dev) ((struct eth_ops *)(dev)->driver->ops) - -struct udevice *eth_get_dev(void); /* get the current device */ -/* - * The devname can be either an exact name given by the driver or device tree - * or it can be an alias of the form "eth%d" - */ -struct udevice *eth_get_dev_by_name(const char *devname); -unsigned char *eth_get_ethaddr(void); /* get the current device MAC */ - -/* Used only when NetConsole is enabled */ -int eth_is_active(struct udevice *dev); /* Test device for active state */ -int eth_init_state_only(void); /* Set active state */ -void eth_halt_state_only(void); /* Set passive state */ - -int eth_initialize(void); /* Initialize network subsystem */ -void eth_try_another(int first_restart); /* Change the device */ -void eth_set_current(void); /* set nterface to ethcur var */ - -int eth_get_dev_index(void); /* get the device index */ - -/** - * eth_env_set_enetaddr_by_index() - set the MAC address environment variable - * - * This sets up an environment variable with the given MAC address (@enetaddr). - * The environment variable to be set is defined by <@base_name><@index>addr. - * If @index is 0 it is omitted. For common Ethernet this means ethaddr, - * eth1addr, etc. - * - * @base_name: Base name for variable, typically "eth" - * @index: Index of interface being updated (>=0) - * @enetaddr: Pointer to MAC address to put into the variable - * Return: 0 if OK, other value on error - */ -int eth_env_set_enetaddr_by_index(const char *base_name, int index, - uchar *enetaddr); - -/* - * Initialize USB ethernet device with CONFIG_DM_ETH - * Returns: - * 0 is success, non-zero is error status. - */ -int usb_ether_init(void); - -/* - * Get the hardware address for an ethernet interface . - * Args: - * base_name - base name for device (normally "eth") - * index - device index number (0 for first) - * enetaddr - returns 6 byte hardware address - * Returns: - * Return true if the address is valid. - */ -int eth_env_get_enetaddr_by_index(const char *base_name, int index, - uchar *enetaddr); - -int eth_init(void); /* Initialize the device */ -int eth_send(void *packet, int length); /* Send a packet */ - -#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) -int eth_receive(void *packet, int length); /* Receive a packet*/ -extern void (*push_packet)(void *packet, int length); -#endif -int eth_rx(void); /* Check for received packets */ -void eth_halt(void); /* stop SCC */ -const char *eth_get_name(void); /* get name of current device */ -int eth_mcast_join(struct in_addr mcast_addr, int join); - -/**********************************************************************/ -/* - * Protocol headers. - */ - -/* - * Ethernet header - */ - -struct ethernet_hdr { - u8 et_dest[ARP_HLEN]; /* Destination node */ - u8 et_src[ARP_HLEN]; /* Source node */ - u16 et_protlen; /* Protocol or length */ -} __attribute__((packed)); - -/* Ethernet header size */ -#define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr)) - -#define ETH_FCS_LEN 4 /* Octets in the FCS */ - -struct e802_hdr { - u8 et_dest[ARP_HLEN]; /* Destination node */ - u8 et_src[ARP_HLEN]; /* Source node */ - u16 et_protlen; /* Protocol or length */ - u8 et_dsap; /* 802 DSAP */ - u8 et_ssap; /* 802 SSAP */ - u8 et_ctl; /* 802 control */ - u8 et_snap1; /* SNAP */ - u8 et_snap2; - u8 et_snap3; - u16 et_prot; /* 802 protocol */ -} __attribute__((packed)); - -/* 802 + SNAP + ethernet header size */ -#define E802_HDR_SIZE (sizeof(struct e802_hdr)) - -/* - * Virtual LAN Ethernet header - */ -struct vlan_ethernet_hdr { - u8 vet_dest[ARP_HLEN]; /* Destination node */ - u8 vet_src[ARP_HLEN]; /* Source node */ - u16 vet_vlan_type; /* PROT_VLAN */ - u16 vet_tag; /* TAG of VLAN */ - u16 vet_type; /* protocol type */ -} __attribute__((packed)); - -/* VLAN Ethernet header size */ -#define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr)) - -#define PROT_IP 0x0800 /* IP protocol */ -#define PROT_ARP 0x0806 /* IP ARP protocol */ -#define PROT_WOL 0x0842 /* ether-wake WoL protocol */ -#define PROT_RARP 0x8035 /* IP ARP protocol */ -#define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */ -#define PROT_IPV6 0x86dd /* IPv6 over bluebook */ -#define PROT_PPP_SES 0x8864 /* PPPoE session messages */ -#define PROT_NCSI 0x88f8 /* NC-SI control packets */ - -#define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ -#define IPPROTO_TCP 6 /* Transmission Control Protocol */ -#define IPPROTO_UDP 17 /* User Datagram Protocol */ - -/* - * Internet Protocol (IP) header. - */ -struct ip_hdr { - u8 ip_hl_v; /* header length and version */ - u8 ip_tos; /* type of service */ - u16 ip_len; /* total length */ - u16 ip_id; /* identification */ - u16 ip_off; /* fragment offset field */ - u8 ip_ttl; /* time to live */ - u8 ip_p; /* protocol */ - u16 ip_sum; /* checksum */ - struct in_addr ip_src; /* Source IP address */ - struct in_addr ip_dst; /* Destination IP address */ -} __attribute__((packed)); - -#define IP_OFFS 0x1fff /* ip offset *= 8 */ -#define IP_FLAGS 0xe000 /* first 3 bits */ -#define IP_FLAGS_RES 0x8000 /* reserved */ -#define IP_FLAGS_DFRAG 0x4000 /* don't fragments */ -#define IP_FLAGS_MFRAG 0x2000 /* more fragments */ - -#define IP_HDR_SIZE (sizeof(struct ip_hdr)) - -#define IP_MIN_FRAG_DATAGRAM_SIZE (IP_HDR_SIZE + 8) - -/* - * Internet Protocol (IP) + UDP header. - */ -struct ip_udp_hdr { - u8 ip_hl_v; /* header length and version */ - u8 ip_tos; /* type of service */ - u16 ip_len; /* total length */ - u16 ip_id; /* identification */ - u16 ip_off; /* fragment offset field */ - u8 ip_ttl; /* time to live */ - u8 ip_p; /* protocol */ - u16 ip_sum; /* checksum */ - struct in_addr ip_src; /* Source IP address */ - struct in_addr ip_dst; /* Destination IP address */ - u16 udp_src; /* UDP source port */ - u16 udp_dst; /* UDP destination port */ - u16 udp_len; /* Length of UDP packet */ - u16 udp_xsum; /* Checksum */ -} __attribute__((packed)); - -#define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) -#define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) - -/* - * Address Resolution Protocol (ARP) header. - */ -struct arp_hdr { - u16 ar_hrd; /* Format of hardware address */ -# define ARP_ETHER 1 /* Ethernet hardware address */ - u16 ar_pro; /* Format of protocol address */ - u8 ar_hln; /* Length of hardware address */ - u8 ar_pln; /* Length of protocol address */ -# define ARP_PLEN 4 - u16 ar_op; /* Operation */ -# define ARPOP_REQUEST 1 /* Request to resolve address */ -# define ARPOP_REPLY 2 /* Response to previous request */ - -# define RARPOP_REQUEST 3 /* Request to resolve address */ -# define RARPOP_REPLY 4 /* Response to previous request */ - - /* - * The remaining fields are variable in size, according to - * the sizes above, and are defined as appropriate for - * specific hardware/protocol combinations. - */ - u8 ar_data[0]; -#define ar_sha ar_data[0] -#define ar_spa ar_data[ARP_HLEN] -#define ar_tha ar_data[ARP_HLEN + ARP_PLEN] -#define ar_tpa ar_data[ARP_HLEN + ARP_PLEN + ARP_HLEN] -#if 0 - u8 ar_sha[]; /* Sender hardware address */ - u8 ar_spa[]; /* Sender protocol address */ - u8 ar_tha[]; /* Target hardware address */ - u8 ar_tpa[]; /* Target protocol address */ -#endif /* 0 */ -} __attribute__((packed)); - -#define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ - -/* - * ICMP stuff (just enough to handle (host) redirect messages) - */ -#define ICMP_ECHO_REPLY 0 /* Echo reply */ -#define ICMP_NOT_REACH 3 /* Detination unreachable */ -#define ICMP_REDIRECT 5 /* Redirect (change route) */ -#define ICMP_ECHO_REQUEST 8 /* Echo request */ - -/* Codes for REDIRECT. */ -#define ICMP_REDIR_NET 0 /* Redirect Net */ -#define ICMP_REDIR_HOST 1 /* Redirect Host */ - -/* Codes for NOT_REACH */ -#define ICMP_NOT_REACH_PORT 3 /* Port unreachable */ - -struct icmp_hdr { - u8 type; - u8 code; - u16 checksum; - union { - struct { - u16 id; - u16 sequence; - } echo; - u32 gateway; - struct { - u16 unused; - u16 mtu; - } frag; - u8 data[0]; - } un; -} __attribute__((packed)); - -#define ICMP_HDR_SIZE (sizeof(struct icmp_hdr)) -#define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE) - -/* - * Maximum packet size; used to allocate packet storage. Use - * the maxium Ethernet frame size as specified by the Ethernet - * standard including the 802.1Q tag (VLAN tagging). - * maximum packet size = 1522 - * maximum packet size and multiple of 32 bytes = 1536 - */ -#define PKTSIZE 1522 -#ifndef CONFIG_DM_DSA -#define PKTSIZE_ALIGN 1536 +#if defined(CONFIG_NET_LWIP) +#include <net-lwip.h> #else -/* Maximum DSA tagging overhead (headroom and/or tailroom) */ -#define DSA_MAX_OVR 256 -#define PKTSIZE_ALIGN (1536 + DSA_MAX_OVR) -#endif - -/* - * Maximum receive ring size; that is, the number of packets - * we can buffer before overflow happens. Basically, this just - * needs to be enough to prevent a packet being discarded while - * we are processing the previous one. - */ -#define RINGSZ 4 -#define RINGSZ_LOG2 2 - -/**********************************************************************/ -/* - * Globals. - * - * Note: - * - * All variables of type struct in_addr are stored in NETWORK byte order - * (big endian). - */ - -/* net.c */ -/** BOOTP EXTENTIONS **/ -extern struct in_addr net_gateway; /* Our gateway IP address */ -extern struct in_addr net_netmask; /* Our subnet mask (0 = unknown) */ -/* Our Domain Name Server (0 = unknown) */ -extern struct in_addr net_dns_server; -#if defined(CONFIG_BOOTP_DNS2) -/* Our 2nd Domain Name Server (0 = unknown) */ -extern struct in_addr net_dns_server2; +#include <net-legacy.h> #endif -extern char net_nis_domain[32]; /* Our IS domain */ -extern char net_hostname[32]; /* Our hostname */ -#ifdef CONFIG_NET -extern char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN]; /* Our root path */ -#endif -/* Indicates whether the pxe path prefix / config file was specified in dhcp option */ -extern char *pxelinux_configfile; -/** END OF BOOTP EXTENTIONS **/ -extern u8 net_ethaddr[ARP_HLEN]; /* Our ethernet address */ -extern u8 net_server_ethaddr[ARP_HLEN]; /* Boot server enet address */ -extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ -extern struct in_addr net_server_ip; /* Server IP addr (0 = unknown) */ -extern uchar *net_tx_packet; /* THE transmit packet */ -extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ -extern uchar *net_rx_packet; /* Current receive packet */ -extern int net_rx_packet_len; /* Current rx packet length */ -extern const u8 net_bcast_ethaddr[ARP_HLEN]; /* Ethernet broadcast address */ -extern const u8 net_null_ethaddr[ARP_HLEN]; - -#define VLAN_NONE 4095 /* untagged */ -#define VLAN_IDMASK 0x0fff /* mask of valid vlan id */ -extern ushort net_our_vlan; /* Our VLAN */ -extern ushort net_native_vlan; /* Our Native VLAN */ - -extern int net_restart_wrap; /* Tried all network devices */ - -enum proto_t { - BOOTP, RARP, ARP, TFTPGET, DHCP, DHCP6, PING, PING6, DNS, NFS, CDP, - NETCONS, SNTP, TFTPSRV, TFTPPUT, LINKLOCAL, FASTBOOT_UDP, FASTBOOT_TCP, - WOL, UDP, NCSI, WGET, RS -}; - -extern char net_boot_file_name[1024];/* Boot File name */ -/* Indicates whether the file name was specified on the command line */ -extern bool net_boot_file_name_explicit; -/* The actual transferred size of the bootfile (in bytes) */ -extern u32 net_boot_file_size; -/* Boot file size in blocks as reported by the DHCP server */ -extern u32 net_boot_file_expected_size_in_blocks; - -#if defined(CONFIG_CMD_DNS) -extern char *net_dns_resolve; /* The host to resolve */ -extern char *net_dns_env_var; /* the env var to put the ip into */ -#endif - -#if defined(CONFIG_CMD_PING) -extern struct in_addr net_ping_ip; /* the ip address to ping */ -#endif - -#if defined(CONFIG_CMD_CDP) -/* when CDP completes these hold the return values */ -extern ushort cdp_native_vlan; /* CDP returned native VLAN */ -extern ushort cdp_appliance_vlan; /* CDP returned appliance VLAN */ - -/* - * Check for a CDP packet by examining the received MAC address field - */ -static inline int is_cdp_packet(const uchar *ethaddr) -{ - extern const u8 net_cdp_ethaddr[ARP_HLEN]; - - return memcmp(ethaddr, net_cdp_ethaddr, ARP_HLEN) == 0; -} -#endif - -#if defined(CONFIG_CMD_SNTP) -extern struct in_addr net_ntp_server; /* the ip address to NTP */ -extern int net_ntp_time_offset; /* offset time from UTC */ -#endif - -/* Initialize the network adapter */ -int net_init(void); -int net_loop(enum proto_t); - -/* Load failed. Start again. */ -int net_start_again(void); - -/* Get size of the ethernet header when we send */ -int net_eth_hdr_size(void); - -/* Set ethernet header; returns the size of the header */ -int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot); -int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot); - -/* Set IP header */ -void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source, - u16 pkt_len, u8 proto); -void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, - int sport, int len); - -/** - * compute_ip_checksum() - Compute IP checksum - * - * @addr: Address to check (must be 16-bit aligned) - * @nbytes: Number of bytes to check (normally a multiple of 2) - * Return: 16-bit IP checksum - */ -unsigned compute_ip_checksum(const void *addr, unsigned nbytes); - -/** - * add_ip_checksums() - add two IP checksums - * - * @offset: Offset of first sum (if odd we do a byte-swap) - * @sum: First checksum - * @new_sum: New checksum to add - * Return: updated 16-bit IP checksum - */ -unsigned add_ip_checksums(unsigned offset, unsigned sum, unsigned new_sum); - -/** - * ip_checksum_ok() - check if a checksum is correct - * - * This works by making sure the checksum sums to 0 - * - * @addr: Address to check (must be 16-bit aligned) - * @nbytes: Number of bytes to check (normally a multiple of 2) - * Return: true if the checksum matches, false if not - */ -int ip_checksum_ok(const void *addr, unsigned nbytes); - -/* Callbacks */ -rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */ -void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */ -rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */ -void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */ -bool arp_is_waiting(void); /* Waiting for ARP reply? */ -void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */ -void net_set_timeout_handler(ulong, thand_f *);/* Set timeout handler */ - -/* Network loop state */ -enum net_loop_state { - NETLOOP_CONTINUE, - NETLOOP_RESTART, - NETLOOP_SUCCESS, - NETLOOP_FAIL -}; -extern enum net_loop_state net_state; - -static inline void net_set_state(enum net_loop_state state) -{ - debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state); - net_state = state; -} - -/* - * net_get_async_tx_pkt_buf - Get a packet buffer that is not in use for - * sending an asynchronous reply - * - * returns - ptr to packet buffer - */ -uchar * net_get_async_tx_pkt_buf(void); - -/* Transmit a packet */ -static inline void net_send_packet(uchar *pkt, int len) -{ - if (DEBUG_NET_PKT_TRACE) - print_hex_dump_bytes("tx: ", DUMP_PREFIX_OFFSET, pkt, len); - /* Currently no way to return errors from eth_send() */ - (void) eth_send(pkt, len); -} - -/** - * net_send_ip_packet() - Transmit "net_tx_packet" as UDP or TCP packet, - * send ARP request if needed (ether will be populated) - * @ether: Raw packet buffer - * @dest: IP address to send the datagram to - * @dport: Destination UDP port - * @sport: Source UDP port - * @payload_len: Length of data after the UDP header - * @action: TCP action to be performed - * @tcp_seq_num: TCP sequence number of this transmission - * @tcp_ack_num: TCP stream acknolegement number - * - * Return: 0 on success, other value on failure - */ -int net_send_ip_packet(uchar *ether, struct in_addr dest, int dport, int sport, - int payload_len, int proto, u8 action, u32 tcp_seq_num, - u32 tcp_ack_num); -/** - * net_send_tcp_packet() - Transmit TCP packet. - * @payload_len: length of payload - * @dport: Destination TCP port - * @sport: Source TCP port - * @action: TCP action to be performed - * @tcp_seq_num: TCP sequence number of this transmission - * @tcp_ack_num: TCP stream acknolegement number - * - * Return: 0 on success, other value on failure - */ -int net_send_tcp_packet(int payload_len, int dport, int sport, u8 action, - u32 tcp_seq_num, u32 tcp_ack_num); -int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, - int sport, int payload_len); - -/* Processes a received packet */ -void net_process_received_packet(uchar *in_packet, int len); - -#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) -void nc_start(void); -int nc_input_packet(uchar *pkt, struct in_addr src_ip, unsigned dest_port, - unsigned src_port, unsigned len); -#endif - -static __always_inline int eth_is_on_demand_init(void) -{ -#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) - extern enum proto_t net_loop_last_protocol; - - return net_loop_last_protocol != NETCONS; -#else - return 1; -#endif -} - -static inline void eth_set_last_protocol(int protocol) -{ -#if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) - extern enum proto_t net_loop_last_protocol; - - net_loop_last_protocol = protocol; -#endif -} - -/* - * Check if autoload is enabled. If so, use either NFS or TFTP to download - * the boot file. - */ -void net_auto_load(void); - -/* - * The following functions are a bit ugly, but necessary to deal with - * alignment restrictions on ARM. - * - * We're using inline functions, which had the smallest memory - * footprint in our tests. - */ -/* return IP *in network byteorder* */ -static inline struct in_addr net_read_ip(void *from) -{ - struct in_addr ip; - - memcpy((void *)&ip, (void *)from, sizeof(ip)); - return ip; -} - -/* return ulong *in network byteorder* */ -static inline u32 net_read_u32(void *from) -{ - u32 l; - - memcpy((void *)&l, (void *)from, sizeof(l)); - return l; -} - -/* write IP *in network byteorder* */ -static inline void net_write_ip(void *to, struct in_addr ip) -{ - memcpy(to, (void *)&ip, sizeof(ip)); -} - -/* copy IP */ -static inline void net_copy_ip(void *to, void *from) -{ - memcpy((void *)to, from, sizeof(struct in_addr)); -} - -/* copy ulong */ -static inline void net_copy_u32(void *to, void *from) -{ - memcpy((void *)to, (void *)from, sizeof(u32)); -} - -/** - * is_zero_ethaddr - Determine if give Ethernet address is all zeros. - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is all zeroes. - */ -static inline int is_zero_ethaddr(const u8 *addr) -{ - return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); -} - -/** - * is_multicast_ethaddr - Determine if the Ethernet address is a multicast. - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is a multicast address. - * By definition the broadcast address is also a multicast address. - */ -static inline int is_multicast_ethaddr(const u8 *addr) -{ - return 0x01 & addr[0]; -} - -/* - * is_broadcast_ethaddr - Determine if the Ethernet address is broadcast - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Return true if the address is the broadcast address. - */ -static inline int is_broadcast_ethaddr(const u8 *addr) -{ - return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == - 0xff; -} - -/* - * is_valid_ethaddr - Determine if the given Ethernet address is valid - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not - * a multicast address, and is not FF:FF:FF:FF:FF:FF. - * - * Return true if the address is valid. - */ -static inline int is_valid_ethaddr(const u8 *addr) -{ - /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to - * explicitly check for it here. */ - return !is_multicast_ethaddr(addr) && !is_zero_ethaddr(addr); -} - -/** - * net_random_ethaddr - Generate software assigned random Ethernet address - * @addr: Pointer to a six-byte array containing the Ethernet address - * - * Generate a random Ethernet address (MAC) that is not multicast - * and has the local assigned bit set. - */ -static inline void net_random_ethaddr(uchar *addr) -{ - int i; - unsigned int seed = get_ticks(); - - for (i = 0; i < 6; i++) - addr[i] = rand_r(&seed); - - addr[0] &= 0xfe; /* clear multicast bit */ - addr[0] |= 0x02; /* set local assignment bit (IEEE802) */ -} - -/** - * string_to_enetaddr() - Parse a MAC address - * - * Convert a string MAC address - * - * Implemented in lib/net_utils.c (built unconditionally) - * - * @addr: MAC address in aa:bb:cc:dd:ee:ff format, where each part is a 2-digit - * hex value - * @enetaddr: Place to put MAC address (6 bytes) - */ -void string_to_enetaddr(const char *addr, uint8_t *enetaddr); - -/* Convert an IP address to a string */ -void ip_to_string(struct in_addr x, char *s); - -/** - * string_to_ip() - Convert a string to ip address - * - * Implemented in lib/net_utils.c (built unconditionally) - * - * @s: Input string to parse - * @return: in_addr struct containing the parsed IP address - */ -struct in_addr string_to_ip(const char *s); - -/* Convert a VLAN id to a string */ -void vlan_to_string(ushort x, char *s); - -/* Convert a string to a vlan id */ -ushort string_to_vlan(const char *s); - -/* read a VLAN id from an environment variable */ -ushort env_get_vlan(char *); - -/* copy a filename (allow for "..." notation, limit length) */ -void copy_filename(char *dst, const char *src, int size); - -/* check if serverip is specified in filename from the command line */ -int is_serverip_in_cmd(void); - -/** - * net_parse_bootfile - Parse the bootfile env var / cmd line param - * - * @param ipaddr - a pointer to the ipaddr to populate if included in bootfile - * @param filename - a pointer to the string to save the filename part - * @param max_len - The longest - 1 that the filename part can be - * - * return 1 if parsed, 0 if bootfile is empty - */ -int net_parse_bootfile(struct in_addr *ipaddr, char *filename, int max_len); - -/** - * update_tftp - Update firmware over TFTP (via DFU) - * - * This function updates board's firmware via TFTP - * - * @param addr - memory address where data is stored - * @param interface - the DFU medium name - e.g. "mmc" - * @param devstring - the DFU medium number - e.g. "1" - * - * Return: - 0 on success, other value on failure - */ -int update_tftp(ulong addr, char *interface, char *devstring); - -/** - * env_get_ip() - Convert an environment value to to an ip address - * - * @var: Environment variable to convert. The value of this variable must be - * in the format format a.b.c.d, where each value is a decimal number from - * 0 to 255 - * Return: IP address, or 0 if invalid - */ -static inline struct in_addr env_get_ip(char *var) -{ - return string_to_ip(env_get(var)); -} - -/** - * reset_phy() - Reset the Ethernet PHY - * - * This should be implemented by boards if CONFIG_RESET_PHY_R is enabled - */ -void reset_phy(void); - -#if CONFIG_IS_ENABLED(NET) -/** - * eth_set_enable_bootdevs() - Enable or disable binding of Ethernet bootdevs - * - * These get in the way of bootstd testing, so are normally disabled by tests. - * This provide control of this setting. It only affects binding of Ethernet - * devices, so if that has already happened, this flag does nothing. - * - * @enable: true to enable binding of bootdevs when binding new Ethernet - * devices, false to disable it - */ -void eth_set_enable_bootdevs(bool enable); -#else -static inline void eth_set_enable_bootdevs(bool enable) {} -#endif - -/** - * wget_with_dns() - runs dns host IP address resulution before wget - * - * @dst_addr: destination address to download the file - * @uri: uri string of target file of wget - * Return: downloaded file size, negative if failed - */ -int wget_with_dns(ulong dst_addr, char *uri); - -/** - * wget_validate_uri() - varidate the uri - * - * @uri: uri string of target file of wget - * Return: true if uri is valid, false if uri is invalid - */ -bool wget_validate_uri(char *uri);

#endif /* __NET_H__ */

copy_filename() can be useful when NET_LWIP is enabled, therefore move it out of net/net.c which is built only when networking choice is NET.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- net/Makefile | 2 ++ net/net-common.c | 13 +++++++++++++ net/net.c | 12 ------------ 3 files changed, 15 insertions(+), 12 deletions(-) create mode 100644 net/net-common.c

diff --git a/net/Makefile b/net/Makefile index 70eec8caf0d..a9cecee637a 100644 --- a/net/Makefile +++ b/net/Makefile @@ -42,3 +42,5 @@ obj-$(CONFIG_CMD_WGET) += wget.o CFLAGS_eth_common.o += -Wno-format-extra-args

endif + +obj-y += net-common.o diff --git a/net/net-common.c b/net/net-common.c new file mode 100644 index 00000000000..a7f767d5e9c --- /dev/null +++ b/net/net-common.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0 + +void copy_filename(char *dst, const char *src, int size) +{ + if (src && *src && (*src == '"')) { + ++src; + --size; + } + + while ((--size > 0) && src && *src && (*src != '"')) + *dst++ = *src++; + *dst = '\0'; +} diff --git a/net/net.c b/net/net.c index 1e0b7c85624..c1d10a77b9e 100644 --- a/net/net.c +++ b/net/net.c @@ -1689,18 +1689,6 @@ void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport, ip->udp_xsum = 0; }

-void copy_filename(char *dst, const char *src, int size) -{ - if (src && *src && (*src == '"')) { - ++src; - --size; - } - - while ((--size > 0) && src && *src && (*src != '"')) - *dst++ = *src++; - *dst = '\0'; -} - int is_serverip_in_cmd(void) { return !!strchr(net_boot_file_name, ':');

Add what it takes to enable NETDEVICES with NET_LWIP and enable DHCP as well as the dhcp command. CMD_TFTPBOOT is selected by BOOTMETH_EFI due to this code having an implicit dependency on do_tftpb().

Note that PXE is likely non-fonctional with NET_LWIP (or at least not 100% functional) because DHCP option 209 is not supported by the lwIP library. Therefore, BOOTP_PXE_DHCP_OPTION cannot be enabled.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- board/engicam/imx8mp/icore_mx8mp.c | 2 +- .../imx8mp_debix_model_a.c | 2 +- board/ti/am335x/board.c | 3 +- board/xilinx/common/board.c | 3 +- cmd/Kconfig | 100 +++--- cmd/Makefile | 6 +- cmd/elf.c | 2 +- cmd/net-lwip.c | 13 + common/board_r.c | 4 +- common/usb_kbd.c | 2 +- drivers/net/Kconfig | 2 +- include/net-common.h | 3 + include/net-legacy.h | 3 - include/net-lwip.h | 3 + lib/tiny-printf.c | 3 +- net/Makefile | 14 +- net/lwip/Makefile | 5 + net/lwip/dhcp.c | 127 ++++++++ net/lwip/eth_internal.h | 35 +++ net/lwip/net-lwip.c | 291 ++++++++++++++++++ net/lwip/tftp.c | 11 + 21 files changed, 572 insertions(+), 62 deletions(-) create mode 100644 cmd/net-lwip.c create mode 100644 net/lwip/Makefile create mode 100644 net/lwip/dhcp.c create mode 100644 net/lwip/eth_internal.h create mode 100644 net/lwip/net-lwip.c create mode 100644 net/lwip/tftp.c

diff --git a/board/engicam/imx8mp/icore_mx8mp.c b/board/engicam/imx8mp/icore_mx8mp.c index e2ed70caa43..bfdc447c478 100644 --- a/board/engicam/imx8mp/icore_mx8mp.c +++ b/board/engicam/imx8mp/icore_mx8mp.c @@ -33,7 +33,7 @@ static void setup_fec(void) setbits_le32(&gpr->gpr[1], BIT(22)); }

-#if CONFIG_IS_ENABLED(NET) +#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP) int board_phy_config(struct phy_device *phydev) { if (phydev->drv->config) diff --git a/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c b/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c index 112770ba493..c709d017483 100644 --- a/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c +++ b/board/polyhex/imx8mp_debix_model_a/imx8mp_debix_model_a.c @@ -29,7 +29,7 @@ static void setup_fec(void) setbits_le32(&gpr->gpr[1], BIT(22)); }

-#if CONFIG_IS_ENABLED(NET) +#if CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP) int board_phy_config(struct phy_device *phydev) { if (phydev->drv->config) diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c index 681002ba1da..249c9fd2e7e 100644 --- a/board/ti/am335x/board.c +++ b/board/ti/am335x/board.c @@ -900,7 +900,8 @@ int board_late_init(void) #endif

/* CPSW plat */ -#if CONFIG_IS_ENABLED(NET) && !CONFIG_IS_ENABLED(OF_CONTROL) +#if (CONFIG_IS_ENABLED(NET) || CONFIG_IS_ENABLED(NET_LWIP)) && \ + !CONFIG_IS_ENABLED(OF_CONTROL) struct cpsw_slave_data slave_data[] = { { .slave_reg_ofs = CPSW_SLAVE0_OFFSET, diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c index 5e5eb49ddf3..b6a2381c909 100644 --- a/board/xilinx/common/board.c +++ b/board/xilinx/common/board.c @@ -491,7 +491,8 @@ int board_late_init_xilinx(void) ret |= env_set_by_index("uuid", id, uuid); }

- if (!CONFIG_IS_ENABLED(NET)) + if (!(CONFIG_IS_ENABLED(NET) || + CONFIG_IS_ENABLED(NET_LWIP))) continue;

for (i = 0; i < EEPROM_HDR_NO_OF_MAC_ADDR; i++) { diff --git a/cmd/Kconfig b/cmd/Kconfig index 3beddd72583..d09c237a52f 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -1798,12 +1798,16 @@ config CMD_AB_SELECT

endmenu

-if NET +if NET || NET_LWIP

menuconfig CMD_NET bool "Network commands" default y

+endif + +if NET + if CMD_NET

config CMD_BOOTP @@ -1812,12 +1816,6 @@ config CMD_BOOTP help bootp - boot image via network using BOOTP/TFTP protocol

-config CMD_DHCP - bool "dhcp" - depends on CMD_BOOTP - help - Boot image via network using DHCP/TFTP protocol - config CMD_DHCP6 bool "dhcp6" depends on IPV6 @@ -1961,12 +1959,6 @@ config BOOTP_VCI_STRING default "U-Boot.arm" if ARM default "U-Boot"

-config CMD_TFTPBOOT - bool "tftpboot" - default y - help - tftpboot - load file via network using TFTP protocol - config CMD_TFTPPUT bool "tftp put" depends on CMD_TFTPBOOT @@ -2026,29 +2018,6 @@ config CMD_WGET wget is a simple command to download kernel, or other files, from a http server over TCP.

-config CMD_MII - bool "mii" - imply CMD_MDIO - help - If set, allows 802.3(clause 22) MII Management functions interface access - The management interface specified in Clause 22 provides - a simple, two signal, serial interface to connect a - Station Management entity and a managed PHY for providing access - to management parameters and services. - The interface is referred to as the MII management interface. - -config MII_INIT - bool "Call mii_init() in the mii command" - depends on CMD_MII && (MPC8XX_FEC || FSLDMAFE || MCFFEC) - -config CMD_MDIO - bool "mdio" - depends on PHYLIB - help - If set, allows Enable 802.3(clause 45) MDIO interface registers access - The MDIO interface is orthogonal to the MII interface and extends - it by adding access to more registers through indirect addressing. - config CMD_PING bool "ping" help @@ -2097,7 +2066,7 @@ config IPV6_ROUTER_DISCOVERY help Will automatically perform router solicitation on first IPv6 network operation -endif +endif # if CMD_NET

config CMD_ETHSW bool "ethsw" @@ -2107,6 +2076,56 @@ config CMD_ETHSW operations such as enabling / disabling a port and viewing/maintaining the filtering database (FDB)

+config CMD_WOL + bool "wol" + help + Wait for wake-on-lan Magic Packet + +endif # if NET + +if NET || NET_LWIP + +if CMD_NET + +config CMD_DHCP + bool "dhcp" + select PROT_DHCP_LWIP if NET_LWIP + help + Boot image via network using DHCP/TFTP protocol + +config CMD_MII + bool "mii" + imply CMD_MDIO + help + If set, allows 802.3(clause 22) MII Management functions interface access + The management interface specified in Clause 22 provides + a simple, two signal, serial interface to connect a + Station Management entity and a managed PHY for providing access + to management parameters and services. + The interface is referred to as the MII management interface. + +config MII_INIT + bool "Call mii_init() in the mii command" + depends on CMD_MII && (MPC8XX_FEC || FSLDMAFE || MCFFEC) + +config CMD_MDIO + bool "mdio" + depends on PHYLIB + help + If set, allows Enable 802.3(clause 45) MDIO interface registers access + The MDIO interface is orthogonal to the MII interface and extends + it by adding access to more registers through indirect addressing. + +config CMD_TFTPBOOT + bool "tftp" + select PROT_UDP_LWIP if NET_LWIP + default n + help + tftpboot - load file via network using TFTP protocol + Currently a placeholder (not implemented) when NET_LWIP=y. + +endif # if CMD_NET + config CMD_PXE bool "pxe" select PXE_UTILS @@ -2114,12 +2133,7 @@ config CMD_PXE help Boot image via network using PXE protocol

-config CMD_WOL - bool "wol" - help - Wait for wake-on-lan Magic Packet - -endif +endif # if NET || NET_LWIP

menu "Misc commands"

diff --git a/cmd/Makefile b/cmd/Makefile index 91227f1249c..1c8cc42503d 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -127,7 +127,11 @@ obj-y += legacy-mtd-utils.o endif obj-$(CONFIG_CMD_MUX) += mux.o obj-$(CONFIG_CMD_NAND) += nand.o -obj-$(CONFIG_CMD_NET) += net.o +ifdef CONFIG_CMD_NET +obj-$(CONFIG_NET) += net.o +obj-$(CONFIG_NET_LWIP) += net-lwip.o +CFLAGS_net-lwip.o := -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot +endif obj-$(CONFIG_ENV_SUPPORT) += nvedit.o obj-$(CONFIG_CMD_NVEDIT_EFI) += nvedit_efi.o obj-$(CONFIG_CMD_ONENAND) += onenand.o diff --git a/cmd/elf.c b/cmd/elf.c index f07e344a596..e4c68744d5f 100644 --- a/cmd/elf.c +++ b/cmd/elf.c @@ -130,7 +130,7 @@ int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) else addr = hextoul(argv[1], NULL);

-#if defined(CONFIG_CMD_NET) +#if defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_LWIP) /* * Check to see if we need to tftp the image ourselves * before starting diff --git a/cmd/net-lwip.c b/cmd/net-lwip.c new file mode 100644 index 00000000000..82edb5fd2e6 --- /dev/null +++ b/cmd/net-lwip.c @@ -0,0 +1,13 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <net.h> + +#if defined(CONFIG_CMD_DHCP) +U_BOOT_CMD( + dhcp, 3, 1, do_dhcp, + "boot image via network using DHCP/TFTP protocol", + "[loadAddress] [[hostIPaddr:]bootfilename]" +); +#endif diff --git a/common/board_r.c b/common/board_r.c index 4faaa202421..49347370a1f 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -472,7 +472,7 @@ static int initr_status_led(void) } #endif

-#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) static int initr_net(void) { puts("Net: "); @@ -738,7 +738,7 @@ static init_fnc_t init_sequence_r[] = { #ifdef CONFIG_PCI_ENDPOINT pci_ep_init, #endif -#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) INIT_FUNC_WATCHDOG_RESET initr_net, #endif diff --git a/common/usb_kbd.c b/common/usb_kbd.c index bbfee23bc26..36107a3b278 100644 --- a/common/usb_kbd.c +++ b/common/usb_kbd.c @@ -423,7 +423,7 @@ static int usb_kbd_testc(struct stdio_dev *sdev) */ unsigned long poll_delay = CONFIG_SYS_HZ / 50;

-#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) && !defined(CONFIG_NET_LWIP) /* * If net_busy_flag is 1, NET transfer is running, * then we check key-pressed every second (first check may be diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 9c042808b44..25084b4103d 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -97,7 +97,7 @@ config DSA_SANDBOX

menuconfig NETDEVICES bool "Network device support" - depends on NET + depends on NET || NET_LWIP select DM_ETH help You must select Y to enable any network device support diff --git a/include/net-common.h b/include/net-common.h index 6bc76658d9d..cbcac178c82 100644 --- a/include/net-common.h +++ b/include/net-common.h @@ -118,6 +118,9 @@ extern int net_restart_wrap; /* Tried all network devices */ extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ extern const u8 net_bcast_ethaddr[ARP_HLEN]; /* Ethernet broadcast address */ extern char net_boot_file_name[1024];/* Boot File name */ +extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ +/* Indicates whether the pxe path prefix / config file was specified in dhcp option */ +extern char *pxelinux_configfile;

/** * compute_ip_checksum() - Compute IP checksum diff --git a/include/net-legacy.h b/include/net-legacy.h index 19c991e12f6..bdca904a0f8 100644 --- a/include/net-legacy.h +++ b/include/net-legacy.h @@ -285,12 +285,9 @@ extern char net_hostname[32]; /* Our hostname */ #ifdef CONFIG_NET extern char net_root_path[CONFIG_BOOTP_MAX_ROOT_PATH_LEN]; /* Our root path */ #endif -/* Indicates whether the pxe path prefix / config file was specified in dhcp option */ -extern char *pxelinux_configfile; /** END OF BOOTP EXTENTIONS **/ extern u8 net_ethaddr[ARP_HLEN]; /* Our ethernet address */ extern u8 net_server_ethaddr[ARP_HLEN]; /* Boot server enet address */ -extern struct in_addr net_ip; /* Our IP addr (0 = unknown) */ extern struct in_addr net_server_ip; /* Server IP addr (0 = unknown) */ extern uchar *net_tx_packet; /* THE transmit packet */ extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ diff --git a/include/net-lwip.h b/include/net-lwip.h index 5c3f9e7e86c..cfd06726577 100644 --- a/include/net-lwip.h +++ b/include/net-lwip.h @@ -10,5 +10,8 @@ struct netif *net_lwip_new_netif(struct udevice *udev); struct netif *net_lwip_new_netif_noip(struct udevice *udev); void net_lwip_remove_netif(struct netif *netif); struct netif *net_lwip_get_netif(void); +int net_lwip_rx(struct udevice *udev, struct netif *netif); + +int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);

#endif /* __NET_LWIP_H__ */ diff --git a/lib/tiny-printf.c b/lib/tiny-printf.c index 9a70c6095b3..f6727360097 100644 --- a/lib/tiny-printf.c +++ b/lib/tiny-printf.c @@ -269,7 +269,8 @@ static int _vprintf(struct printf_info *info, const char *fmt, va_list va) } break; case 'p': - if (CONFIG_IS_ENABLED(NET) || _DEBUG) { + if (CONFIG_IS_ENABLED(NET) || + CONFIG_IS_ENABLED(NET_LWIP) || _DEBUG) { pointer(info, fmt, va_arg(va, void *)); /* * Skip this because it pulls in _ctype which is diff --git a/net/Makefile b/net/Makefile index a9cecee637a..68370595a8e 100644 --- a/net/Makefile +++ b/net/Makefile @@ -12,11 +12,6 @@ obj-$(CONFIG_CMD_BOOTP) += bootp.o obj-$(CONFIG_CMD_CDP) += cdp.o obj-$(CONFIG_CMD_DNS) += dns.o obj-$(CONFIG_DM_DSA) += dsa-uclass.o -obj-$(CONFIG_$(SPL_)DM_ETH) += eth-uclass.o -obj-$(CONFIG_$(SPL_TPL_)BOOTDEV_ETH) += eth_bootdev.o -obj-$(CONFIG_DM_MDIO) += mdio-uclass.o -obj-$(CONFIG_DM_MDIO_MUX) += mdio-mux-uclass.o -obj-$(CONFIG_$(SPL_)DM_ETH) += eth_common.o obj-$(CONFIG_CMD_LINK_LOCAL) += link_local.o obj-$(CONFIG_IPV6) += ndisc.o obj-$(CONFIG_$(SPL_)DM_ETH) += net.o @@ -43,4 +38,13 @@ CFLAGS_eth_common.o += -Wno-format-extra-args

endif

+ifeq ($(filter y,$(CONFIG_NET) $(CONFIG_NET_LWIP)),y) +obj-$(CONFIG_$(SPL_TPL_)BOOTDEV_ETH) += eth_bootdev.o +obj-$(CONFIG_DM_MDIO) += mdio-uclass.o +obj-$(CONFIG_DM_MDIO_MUX) += mdio-mux-uclass.o +obj-$(CONFIG_$(SPL_)DM_ETH) += eth-uclass.o +obj-$(CONFIG_$(SPL_)DM_ETH) += eth_common.o obj-y += net-common.o +endif + +obj-$(CONFIG_NET_LWIP) += lwip/ diff --git a/net/lwip/Makefile b/net/lwip/Makefile new file mode 100644 index 00000000000..4e92a101ddb --- /dev/null +++ b/net/lwip/Makefile @@ -0,0 +1,5 @@ +ccflags-y += -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot + +obj-$(CONFIG_$(SPL_)DM_ETH) += net-lwip.o +obj-$(CONFIG_CMD_DHCP) += dhcp.o +obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o diff --git a/net/lwip/dhcp.c b/net/lwip/dhcp.c new file mode 100644 index 00000000000..be458d554cb --- /dev/null +++ b/net/lwip/dhcp.c @@ -0,0 +1,127 @@ +// 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/dhcp.h> +#include <lwip/dns.h> +#include <lwip/timeouts.h> +#include <net.h> +#include <time.h> + +#define DHCP_TIMEOUT_MS 10000 + +#ifdef CONFIG_CMD_TFTPBOOT +/* Boot file obtained from DHCP (if present) */ +static char boot_file_name[DHCP_BOOT_FILE_LEN]; +#endif + +static void call_lwip_dhcp_fine_tmr(void *ctx) +{ + dhcp_fine_tmr(); + sys_timeout(10, call_lwip_dhcp_fine_tmr, NULL); +} + +static int dhcp_loop(struct udevice *udev) +{ + char *ipstr = "ipaddr\0\0"; + char *maskstr = "netmask\0\0"; + char *gwstr = "gatewayip\0\0"; + unsigned long start; + struct netif *netif; + struct dhcp *dhcp; + bool bound; + int idx; + + idx = dev_seq(udev); + if (idx < 0 || idx > 99) { + log_err("unexpected idx %d\n", idx); + return CMD_RET_FAILURE; + } + + netif = net_lwip_new_netif_noip(udev); + if (!netif) + return CMD_RET_FAILURE; + + start = get_timer(0); + dhcp_start(netif); + call_lwip_dhcp_fine_tmr(NULL); + + /* Wait for DHCP to complete */ + do { + net_lwip_rx(udev, netif); + sys_check_timeouts(); + bound = dhcp_supplied_address(netif); + if (bound) + break; + if (ctrlc()) { + printf("Abort\n"); + break; + } + mdelay(1); + } while (get_timer(start) < DHCP_TIMEOUT_MS); + + sys_untimeout(call_lwip_dhcp_fine_tmr, NULL); + + if (!bound) { + net_lwip_remove_netif(netif); + return CMD_RET_FAILURE; + } + + dhcp = netif_dhcp_data(netif); + + env_set("bootfile", dhcp->boot_file_name); + + if (idx > 0) { + sprintf(ipstr, "ipaddr%d", idx); + sprintf(maskstr, "netmask%d", idx); + sprintf(gwstr, "gatewayip%d", idx); + } else { + net_ip.s_addr = dhcp->offered_ip_addr.addr; + } + + env_set(ipstr, ip4addr_ntoa(&dhcp->offered_ip_addr)); + env_set(maskstr, ip4addr_ntoa(&dhcp->offered_sn_mask)); + env_set("serverip", ip4addr_ntoa(&dhcp->server_ip_addr)); + if (dhcp->offered_gw_addr.addr != 0) + env_set(gwstr, ip4addr_ntoa(&dhcp->offered_gw_addr)); + +#ifdef CONFIG_PROT_DNS_LWIP + env_set("dnsip", ip4addr_ntoa(dns_getserver(0))); + env_set("dnsip2", ip4addr_ntoa(dns_getserver(1))); +#endif +#ifdef CONFIG_CMD_TFTPBOOT + if (dhcp->boot_file_name[0] != '\0') + strncpy(boot_file_name, dhcp->boot_file_name, + sizeof(boot_file_name)); +#endif + + printf("DHCP client bound to address %pI4 (%lu ms)\n", + &dhcp->offered_ip_addr, get_timer(start)); + + net_lwip_remove_netif(netif); + return CMD_RET_SUCCESS; +} + +int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + eth_set_current(); + + return dhcp_loop(eth_get_dev()); +} + +int dhcp_run(ulong addr, const char *fname, bool autoload) +{ + char *dhcp_argv[] = {"dhcp", NULL, }; + struct cmd_tbl cmdtp = {}; /* dummy */ + + if (autoload) { + /* Will be supported when TFTP is added */ + return -EOPNOTSUPP; + } + + return do_dhcp(&cmdtp, 0, 1, dhcp_argv); +} diff --git a/net/lwip/eth_internal.h b/net/lwip/eth_internal.h new file mode 100644 index 00000000000..0b829a8d388 --- /dev/null +++ b/net/lwip/eth_internal.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * (C) Copyright 2001-2015 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * Joe Hershberger, National Instruments + */ + +#ifndef __ETH_INTERNAL_H +#define __ETH_INTERNAL_H + +/* Do init that is common to driver model and legacy networking */ +void eth_common_init(void); + +/** + * eth_env_set_enetaddr_by_index() - set the MAC address environment variable + * + * This sets up an environment variable with the given MAC address (@enetaddr). + * The environment variable to be set is defined by <@base_name><@index>addr. + * If @index is 0 it is omitted. For common Ethernet this means ethaddr, + * eth1addr, etc. + * + * @base_name: Base name for variable, typically "eth" + * @index: Index of interface being updated (>=0) + * @enetaddr: Pointer to MAC address to put into the variable + * Return: 0 if OK, other value on error + */ +int eth_env_set_enetaddr_by_index(const char *base_name, int index, + uchar *enetaddr); + +int eth_mac_skip(int index); +void eth_current_changed(void); +void eth_set_dev(struct udevice *dev); +void eth_set_current_to_next(void); + +#endif diff --git a/net/lwip/net-lwip.c b/net/lwip/net-lwip.c new file mode 100644 index 00000000000..ca5426d058b --- /dev/null +++ b/net/lwip/net-lwip.c @@ -0,0 +1,291 @@ +// SPDX-License-Identifier: GPL-2.0 + +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <dm/device.h> +#include <dm/uclass.h> +#include <lwip/ip4_addr.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 <net.h> + +/* xx:xx:xx:xx:xx:xx\0 */ +#define MAC_ADDR_STRLEN 18 + +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) +void (*push_packet)(void *, int len) = 0; +#endif +int net_restart_wrap; +static uchar net_pkt_buf[(PKTBUFSRX) * PKTSIZE_ALIGN + PKTALIGN]; +uchar *net_rx_packets[PKTBUFSRX]; +uchar *net_rx_packet; +const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; +char *pxelinux_configfile; +/* Our IP addr (0 = unknown) */ +struct in_addr net_ip; + +static err_t linkoutput(struct netif *netif, struct pbuf *p) +{ + struct udevice *udev = netif->state; + void *pp = NULL; + int err; + + if ((unsigned long)p->payload % PKTALIGN) { + /* + * Some net drivers have strict alignment requirements and may + * fail or output invalid data if the packet is not aligned. + */ + pp = memalign(PKTALIGN, p->len); + if (!pp) + return ERR_ABRT; + memcpy(pp, p->payload, p->len); + } + + err = eth_get_ops(udev)->send(udev, pp ? pp : p->payload, p->len); + free(pp); + if (err) { + log_err("send error %d\n", err); + return ERR_ABRT; + } + + return ERR_OK; +} + +static err_t net_lwip_if_init(struct netif *netif) +{ +#if LWIP_IPV4 + netif->output = etharp_output; +#endif + netif->linkoutput = linkoutput; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + + return ERR_OK; +} + +static void eth_init_rings(void) +{ + int i; + + for (i = 0; i < PKTBUFSRX; i++) + net_rx_packets[i] = net_pkt_buf + i * PKTSIZE_ALIGN; +} + +struct netif *net_lwip_get_netif(void) +{ + struct netif *netif, *found = NULL; + + NETIF_FOREACH(netif) { + if (!found) + found = netif; + else + printf("Error: more than one netif in lwIP\n"); + } + return found; +} + +static int get_udev_ipv4_info(struct udevice *dev, ip4_addr_t *ip, + ip4_addr_t *mask, ip4_addr_t *gw) +{ + char *ipstr = "ipaddr\0\0"; + char *maskstr = "netmask\0\0"; + char *gwstr = "gatewayip\0\0"; + int idx = dev_seq(dev); + char *env; + + if (idx < 0 || idx > 99) { + log_err("unexpected idx %d\n", idx); + return -1; + } + + if (idx) { + sprintf(ipstr, "ipaddr%d", idx); + sprintf(maskstr, "netmask%d", idx); + sprintf(gwstr, "gatewayip%d", idx); + } + + ip4_addr_set_zero(ip); + ip4_addr_set_zero(mask); + ip4_addr_set_zero(gw); + + env = env_get(ipstr); + if (env) + ip4addr_aton(env, ip); + + env = env_get(maskstr); + if (env) + ip4addr_aton(env, mask); + + env = env_get(gwstr); + if (env) + ip4addr_aton(env, gw); + + return 0; +} + +static struct netif *new_netif(struct udevice *udev, bool with_ip) +{ + unsigned char enetaddr[ARP_HLEN]; + char hwstr[MAC_ADDR_STRLEN]; + ip4_addr_t ip, mask, gw; + struct netif *netif; + int ret = 0; + static bool first_call = true; + + if (!udev) + return NULL; + + if (first_call) { + eth_init_rings(); + /* Pick a valid active device, if any */ + eth_init(); + lwip_init(); + first_call = false; + } + + if (eth_start_udev(udev) < 0) { + log_err("Could not start %s\n", udev->name); + return NULL; + } + + netif_remove(net_lwip_get_netif()); + + ip4_addr_set_zero(&ip); + ip4_addr_set_zero(&mask); + ip4_addr_set_zero(&gw); + + if (with_ip) + if (get_udev_ipv4_info(udev, &ip, &mask, &gw) < 0) + return NULL; + + eth_env_get_enetaddr_by_index("eth", dev_seq(udev), enetaddr); + ret = snprintf(hwstr, MAC_ADDR_STRLEN, "%pM", enetaddr); + if (ret < 0 || ret >= MAC_ADDR_STRLEN) + return NULL; + + netif = calloc(1, sizeof(struct netif)); + if (!netif) + return NULL; + + netif->name[0] = 'e'; + netif->name[1] = 't'; + + string_to_enetaddr(hwstr, netif->hwaddr); + netif->hwaddr_len = ETHARP_HWADDR_LEN; + debug("adding lwIP netif for %s with hwaddr:%s ip:%s ", udev->name, + hwstr, ip4addr_ntoa(&ip)); + debug("mask:%s ", ip4addr_ntoa(&mask)); + debug("gw:%s\n", ip4addr_ntoa(&gw)); + + if (!netif_add(netif, &ip, &mask, &gw, udev, net_lwip_if_init, + netif_input)) { + printf("error: netif_add() failed\n"); + free(netif); + return NULL; + } + + netif_set_up(netif); + netif_set_link_up(netif); + /* Routing: use this interface to reach the default gateway */ + netif_set_default(netif); + + return netif; +} + +struct netif *net_lwip_new_netif(struct udevice *udev) +{ + return new_netif(udev, true); +} + +struct netif *net_lwip_new_netif_noip(struct udevice *udev) +{ + + return new_netif(udev, false); +} + +void net_lwip_remove_netif(struct netif *netif) +{ + netif_remove(netif); + free(netif); +} + +int net_init(void) +{ + eth_set_current(); + + net_lwip_new_netif(eth_get_dev()); + + return 0; +} + +static struct pbuf *alloc_pbuf_and_copy(uchar *data, int len) +{ + struct pbuf *p, *q; + + /* We allocate a pbuf chain of pbufs from the pool. */ + p = pbuf_alloc(PBUF_RAW, len, PBUF_POOL); + if (!p) { + LINK_STATS_INC(link.memerr); + LINK_STATS_INC(link.drop); + return NULL; + } + + for (q = p; q != NULL; q = q->next) { + memcpy(q->payload, data, q->len); + data += q->len; + } + + LINK_STATS_INC(link.recv); + + return p; +} + +int net_lwip_rx(struct udevice *udev, struct netif *netif) +{ + struct pbuf *pbuf; + uchar *packet; + int flags; + int len; + int i; + + if (!eth_is_active(udev)) + return -EINVAL; + + flags = ETH_RECV_CHECK_DEVICE; + for (i = 0; i < ETH_PACKETS_BATCH_RECV; i++) { + len = eth_get_ops(udev)->recv(udev, flags, &packet); + flags = 0; + + if (len > 0) { + pbuf = alloc_pbuf_and_copy(packet, len); + if (pbuf) + netif->input(pbuf, netif); + } + if (len >= 0 && eth_get_ops(udev)->free_pkt) + eth_get_ops(udev)->free_pkt(udev, packet, len); + if (len <= 0) + break; + } + if (len == -EAGAIN) + len = 0; + + return len; +} + +void net_process_received_packet(uchar *in_packet, int len) +{ +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) + if (push_packet) + (*push_packet)(in_packet, len); +#endif +} + +u32_t sys_now(void) +{ + return get_timer(0); +} diff --git a/net/lwip/tftp.c b/net/lwip/tftp.c new file mode 100644 index 00000000000..1fa246f55d9 --- /dev/null +++ b/net/lwip/tftp.c @@ -0,0 +1,11 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <net-lwip.h> + +int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + /* Not implemented */ + return CMD_RET_FAILURE; +}

Implement do_tftpb(). This implementation of the tftp command supports an optional port number. For example:

tftp 192.168.0.30:9069:file.bin

It also supports taking the server IP from ${tftpserverip} if defined, before falling back to ${serverip}.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- cmd/Kconfig | 3 +- cmd/net-lwip.c | 8 ++ include/net-common.h | 4 + include/net-lwip.h | 4 + lib/binman.c | 1 + net/lwip/dhcp.c | 11 +- net/lwip/net-lwip.c | 16 +++ net/lwip/tftp.c | 283 ++++++++++++++++++++++++++++++++++++++++++- 8 files changed, 324 insertions(+), 6 deletions(-)

diff --git a/cmd/Kconfig b/cmd/Kconfig index d09c237a52f..f1372a025b7 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2119,10 +2119,9 @@ config CMD_MDIO config CMD_TFTPBOOT bool "tftp" select PROT_UDP_LWIP if NET_LWIP - default n + default y help tftpboot - load file via network using TFTP protocol - Currently a placeholder (not implemented) when NET_LWIP=y.

endif # if CMD_NET

diff --git a/cmd/net-lwip.c b/cmd/net-lwip.c index 82edb5fd2e6..80f0872bb8f 100644 --- a/cmd/net-lwip.c +++ b/cmd/net-lwip.c @@ -11,3 +11,11 @@ U_BOOT_CMD( "[loadAddress] [[hostIPaddr:]bootfilename]" ); #endif + +#if defined(CONFIG_CMD_TFTPBOOT) +U_BOOT_CMD( + tftpboot, 3, 0, do_tftpb, + "boot image via network using TFTP protocol\n", + "[loadAddress] [[hostIPaddr:]bootfilename]" +); +#endif diff --git a/include/net-common.h b/include/net-common.h index cbcac178c82..fd7c5e7b488 100644 --- a/include/net-common.h +++ b/include/net-common.h @@ -459,6 +459,10 @@ static inline struct in_addr env_get_ip(char *var)

int net_init(void);

+/* NET compatibility */ +enum proto_t; +int net_loop(enum proto_t protocol); + /** * dhcp_run() - Run DHCP on the current ethernet device * diff --git a/include/net-lwip.h b/include/net-lwip.h index cfd06726577..37744b0e2cd 100644 --- a/include/net-lwip.h +++ b/include/net-lwip.h @@ -6,6 +6,10 @@ #include <lwip/ip4.h> #include <lwip/netif.h>

+enum proto_t { + TFTPGET +}; + struct netif *net_lwip_new_netif(struct udevice *udev); struct netif *net_lwip_new_netif_noip(struct udevice *udev); void net_lwip_remove_netif(struct netif *netif); diff --git a/lib/binman.c b/lib/binman.c index 9047f5275f3..93d85548116 100644 --- a/lib/binman.c +++ b/lib/binman.c @@ -137,6 +137,7 @@ int binman_init(void) { int ret;

+ return 0; binman = malloc(sizeof(struct binman_info)); if (!binman) return log_msg_ret("space for binman", -ENOMEM); diff --git a/net/lwip/dhcp.c b/net/lwip/dhcp.c index be458d554cb..14685cf7825 100644 --- a/net/lwip/dhcp.c +++ b/net/lwip/dhcp.c @@ -116,11 +116,20 @@ int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) int dhcp_run(ulong addr, const char *fname, bool autoload) { char *dhcp_argv[] = {"dhcp", NULL, }; +#ifdef CONFIG_CMD_TFTPBOOT + char *tftp_argv[] = {"tftpboot", boot_file_name, NULL, }; +#endif struct cmd_tbl cmdtp = {}; /* dummy */

if (autoload) { - /* Will be supported when TFTP is added */ +#ifdef CONFIG_CMD_TFTPBOOT + /* Assume DHCP was already performed */ + if (boot_file_name[0]) + return do_tftpb(&cmdtp, 0, 2, tftp_argv); + return 0; +#else return -EOPNOTSUPP; +#endif }

return do_dhcp(&cmdtp, 0, 1, dhcp_argv); diff --git a/net/lwip/net-lwip.c b/net/lwip/net-lwip.c index ca5426d058b..6a27d71de73 100644 --- a/net/lwip/net-lwip.c +++ b/net/lwip/net-lwip.c @@ -28,6 +28,7 @@ const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; char *pxelinux_configfile; /* Our IP addr (0 = unknown) */ struct in_addr net_ip; +char net_boot_file_name[1024];

static err_t linkoutput(struct netif *netif, struct pbuf *p) { @@ -285,6 +286,21 @@ void net_process_received_packet(uchar *in_packet, int len) #endif }

+int net_loop(enum proto_t protocol) +{ + char *argv[1]; + + switch (protocol) { + case TFTPGET: + argv[0] = "tftpboot"; + return do_tftpb(NULL, 0, 1, argv); + default: + return -EINVAL; + } + + return -EINVAL; +} + u32_t sys_now(void) { return get_timer(0); diff --git a/net/lwip/tftp.c b/net/lwip/tftp.c index 1fa246f55d9..26978643313 100644 --- a/net/lwip/tftp.c +++ b/net/lwip/tftp.c @@ -2,10 +2,287 @@ /* Copyright (C) 2024 Linaro Ltd. */

#include <command.h> -#include <net-lwip.h> +#include <console.h> +#include <display_options.h> +#include <dm/device.h> +#include <efi_loader.h> +#include <image.h> +#include <linux/delay.h> +#include <lwip/apps/tftp_client.h> +#include <lwip/timeouts.h> +#include <mapmem.h> +#include <net.h> +#include <time.h> + +#define PROGRESS_PRINT_STEP_BYTES (10 * 1024) + +enum done_state { + NOT_DONE = 0, + SUCCESS, + FAILURE, + ABORTED +}; + +struct tftp_ctx { + ulong daddr; + ulong size; + ulong block_count; + ulong start_time; + enum done_state done; +}; + +static void *tftp_open(const char *fname, const char *mode, u8_t is_write) +{ + return NULL; +} + +static void tftp_close(void *handle) +{ + struct tftp_ctx *ctx = handle; + ulong elapsed; + + if (ctx->done == FAILURE || ctx->done == ABORTED) { + /* Closing after an error or Ctrl-C */ + return; + } + ctx->done = SUCCESS; + + elapsed = get_timer(ctx->start_time); + if (elapsed > 0) { + puts("\n\t "); /* Line up with "Loading: " */ + print_size(ctx->size / elapsed * 1000, "/s"); + } + puts("\ndone\n"); + printf("Bytes transferred = %lu (%lx hex)\n", ctx->size, ctx->size); + + if (env_set_hex("filesize", ctx->size)) { + log_err("filesize not updated\n"); + return; + } +} + +static int tftp_read(void *handle, void *buf, int bytes) +{ + return 0; +} + +static int tftp_write(void *handle, struct pbuf *p) +{ + struct tftp_ctx *ctx = handle; + struct pbuf *q; + + for (q = p; q != NULL; q = q->next) { + memcpy((void *)ctx->daddr, q->payload, q->len); + ctx->daddr += q->len; + ctx->size += q->len; + ctx->block_count++; + if (ctx->block_count % 10 == 0) { + putc('#'); + if (ctx->block_count % (65 * 10) == 0) + puts("\n\t "); + } + } + + return 0; +} + +static void tftp_error(void *handle, int err, const char *msg, int size) +{ + struct tftp_ctx *ctx = handle; + char message[100]; + + ctx->done = FAILURE; + memset(message, 0, sizeof(message)); + memcpy(message, msg, LWIP_MIN(sizeof(message) - 1, (size_t)size)); + + printf("\nTFTP error: %d (%s)\n", err, message); +} + +static const struct tftp_context tftp_context = { + tftp_open, + tftp_close, + tftp_read, + tftp_write, + tftp_error +}; + +static int tftp_loop(struct udevice *udev, ulong addr, char *fname, + ip_addr_t srvip, uint16_t srvport) +{ + struct netif *netif; + struct tftp_ctx ctx; + err_t err; + + if (!fname || addr == 0) + return -1; + + if (!srvport) + srvport = TFTP_PORT; + + netif = net_lwip_new_netif(udev); + if (!netif) + return -1; + + ctx.done = NOT_DONE; + ctx.size = 0; + ctx.block_count = 0; + ctx.daddr = addr; + + printf("Using %s device\n", udev->name); + printf("TFTP from server %s; our IP address is %s\n", + ip4addr_ntoa(&srvip), env_get("ipaddr")); + printf("Filename '%s'.\n", fname); + printf("Load address: 0x%lx\n", ctx.daddr); + printf("Loading: "); + + err = tftp_init_client(&tftp_context); + if (!(err == ERR_OK || err == ERR_USE)) + log_err("tftp_init_client err: %d\n", err); + + ctx.start_time = get_timer(0); + err = tftp_get(&ctx, &srvip, srvport, fname, TFTP_MODE_OCTET); + /* might return different errors, like routing problems */ + if (err != ERR_OK) { + printf("tftp_get() error %d\n", err); + net_lwip_remove_netif(netif); + return -1; + } + + while (!ctx.done) { + net_lwip_rx(udev, netif); + sys_check_timeouts(); + if (ctrlc()) { + printf("\nAbort\n"); + ctx.done = ABORTED; + break; + } + } + + tftp_cleanup(); + + net_lwip_remove_netif(netif); + + if (ctx.done == SUCCESS) { + if (env_set_hex("fileaddr", addr)) { + log_err("fileaddr not updated\n"); + return -1; + } + efi_set_bootdev("Net", "", fname, map_sysmem(addr, 0), + ctx.size); + return 0; + } + + return -1; +}

int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { - /* Not implemented */ - return CMD_RET_FAILURE; + int ret = CMD_RET_SUCCESS; + char *arg = NULL; + char *words[3] = { }; + char *fname = NULL; + char *server_ip = NULL; + char *server_port = NULL; + char *end; + ip_addr_t srvip; + uint16_t port = TFTP_PORT; + ulong laddr; + ulong addr; + int i; + + laddr = env_get_ulong("loadaddr", 16, image_load_addr); + + switch (argc) { + case 1: + fname = env_get("bootfile"); + break; + case 2: + /* + * 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]))) { + laddr = addr; + fname = env_get("bootfile"); + } else { + arg = strdup(argv[1]); + } + break; + case 3: + laddr = hextoul(argv[1], NULL); + arg = strdup(argv[2]); + break; + default: + ret = CMD_RET_USAGE; + goto out; + } + + if (!arg) + arg = net_boot_file_name; + + if (arg) { + /* Parse [ip:[port:]]fname */ + i = 0; + while ((*(words + i) = strsep(&arg,":"))) + i++; + + switch (i) { + case 3: + server_ip = words[0]; + server_port = words[1]; + fname = words[2]; + break; + case 2: + server_ip = words[0]; + fname = words[1]; + break; + case 1: + fname = words[0]; + break; + default: + break; + } + } + + if (!server_ip) + server_ip = env_get("tftpserverip"); + if (!server_ip) + server_ip = env_get("serverip"); + if (!server_ip) { + log_err("error: tftpserverip/serverip has to be set\n"); + ret = CMD_RET_FAILURE; + goto out; + } + + if (server_port) + port = dectoul(server_port, NULL); + + if (!ipaddr_aton(server_ip, &srvip)) { + log_err("error: ipaddr_aton\n"); + ret = CMD_RET_FAILURE; + goto out; + } + + if (!fname) { + log_err("error: no file name\n"); + ret = CMD_RET_FAILURE; + goto out; + } + + if (!laddr) { + log_err("error: no load address\n"); + ret = CMD_RET_FAILURE; + goto out; + } + + eth_set_current(); + + if (tftp_loop(eth_get_dev(), laddr, fname, srvip, port) < 0) + ret = CMD_RET_FAILURE; +out: + free(arg); + return ret; }