Prefix the flash status codes (ERR_*) with FL_ in order to avoid clashes with third-party libraries. Case in point: including the lwIP library header file <lwip/err.h> which defines err_enum_t as an enum with values being ERR_*.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- board/cobra5272/flash.c | 26 +++++++++--------- board/freescale/m5253demo/flash.c | 6 ++--- common/flash.c | 44 +++++++++++++++---------------- drivers/mtd/cfi_flash.c | 36 ++++++++++++------------- include/flash.h | 20 +++++++------- 5 files changed, 66 insertions(+), 66 deletions(-)

diff --git a/board/cobra5272/flash.c b/board/cobra5272/flash.c index 8416af163ad..6464975f184 100644 --- a/board/cobra5272/flash.c +++ b/board/cobra5272/flash.c @@ -134,22 +134,22 @@ int flash_erase(flash_info_t *info, int s_first, int s_last) { ulong result; int iflag, cflag, prot, sect; - int rc = ERR_OK; + int rc = FL_ERR_OK; int chip1; ulong start;

/* first look for protection bits */

if (info->flash_id == FLASH_UNKNOWN) - return ERR_UNKNOWN_FLASH_TYPE; + return FL_ERR_UNKNOWN_FLASH_TYPE;

if ((s_first < 0) || (s_first > s_last)) { - return ERR_INVAL; + return FL_ERR_INVAL; }

if ((info->flash_id & FLASH_VENDMASK) != (AMD_MANUFACT & FLASH_VENDMASK)) { - return ERR_UNKNOWN_FLASH_VENDOR; + return FL_ERR_UNKNOWN_FLASH_VENDOR; }

prot = 0; @@ -159,7 +159,7 @@ int flash_erase(flash_info_t *info, int s_first, int s_last) } } if (prot) - return ERR_PROTECTED; + return FL_ERR_PROTECTED;

/* * Disable interrupts which might cause a timeout @@ -216,11 +216,11 @@ int flash_erase(flash_info_t *info, int s_first, int s_last) MEM_FLASH_ADDR1 = CMD_READ_ARRAY;

if (chip1 == ERR) { - rc = ERR_PROG_ERROR; + rc = FL_ERR_PROG_ERROR; goto outahere; } if (chip1 == TMO) { - rc = ERR_TIMEOUT; + rc = FL_ERR_TIMEOUT; goto outahere; }

@@ -251,7 +251,7 @@ static int write_word(flash_info_t *info, ulong dest, ulong data) { volatile u16 *addr = (volatile u16 *) dest; ulong result; - int rc = ERR_OK; + int rc = FL_ERR_OK; int cflag, iflag; int chip1; ulong start; @@ -261,7 +261,7 @@ static int write_word(flash_info_t *info, ulong dest, ulong data) */ result = *addr; if ((result & data) != data) - return ERR_NOT_ERASED; + return FL_ERR_NOT_ERASED;

/* @@ -302,7 +302,7 @@ static int write_word(flash_info_t *info, ulong dest, ulong data) *addr = CMD_READ_ARRAY;

if (chip1 == ERR || *addr != data) - rc = ERR_PROG_ERROR; + rc = FL_ERR_PROG_ERROR;

if (iflag) enable_interrupts(); @@ -321,13 +321,13 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt)

if (addr & 1) { printf ("unaligned destination not supported\n"); - return ERR_ALIGN; + return FL_ERR_ALIGN; }

#if 0 if (cnt & 1) { printf ("odd transfer sizes not supported\n"); - return ERR_ALIGN; + return FL_ERR_ALIGN; } #endif

@@ -365,5 +365,5 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) cnt -= 1; }

- return ERR_OK; + return FL_ERR_OK; } diff --git a/board/freescale/m5253demo/flash.c b/board/freescale/m5253demo/flash.c index eeb9cfd3125..b6b7df88761 100644 --- a/board/freescale/m5253demo/flash.c +++ b/board/freescale/m5253demo/flash.c @@ -71,7 +71,7 @@ int flash_get_offsets(ulong base, flash_info_t * info) } }

- return ERR_OK; + return FL_ERR_OK; }

void flash_print_info(flash_info_t * info) @@ -368,9 +368,9 @@ int write_buff(flash_info_t * info, uchar * src, ulong addr, ulong cnt) }

if (cnt == 0) - return ERR_OK; + return FL_ERR_OK;

- return ERR_OK; + return FL_ERR_OK; }

/*----------------------------------------------------------------------- diff --git a/common/flash.c b/common/flash.c index 848f44e59df..99fd84e2aef 100644 --- a/common/flash.c +++ b/common/flash.c @@ -110,13 +110,13 @@ addr2info(ulong addr) * Make sure all target addresses are within Flash bounds, * and no protected sectors are hit. * Returns: - * ERR_OK 0 - OK - * ERR_TIMEOUT 1 - write timeout - * ERR_NOT_ERASED 2 - Flash not erased - * ERR_PROTECTED 4 - target range includes protected sectors - * ERR_INVAL 8 - target address not in Flash memory - * ERR_ALIGN 16 - target address not aligned on boundary - * (only some targets require alignment) + * FL_ERR_OK 0 - OK + * FL_ERR_TIMEOUT 1 - write timeout + * FL_ERR_NOT_ERASED 2 - Flash not erased + * FL_ERR_PROTECTED 4 - target range includes protected sectors + * FL_ERR_INVAL 8 - target address not in Flash memory + * FL_ERR_ALIGN 16 - target address not aligned on boundary + * (only some targets require alignment) */ int flash_write(char *src, ulong addr, ulong cnt) @@ -131,11 +131,11 @@ flash_write(char *src, ulong addr, ulong cnt) __maybe_unused ulong cnt_orig = cnt;

if (cnt == 0) { - return (ERR_OK); + return (FL_ERR_OK); }

if (!info_first || !info_last) { - return (ERR_INVAL); + return (FL_ERR_INVAL); }

for (info = info_first; info <= info_last; ++info) { @@ -146,7 +146,7 @@ flash_write(char *src, ulong addr, ulong cnt)

if ((end >= info->start[i]) && (addr < e_addr) && (info->protect[i] != 0) ) { - return (ERR_PROTECTED); + return (FL_ERR_PROTECTED); } } } @@ -169,11 +169,11 @@ flash_write(char *src, ulong addr, ulong cnt) #if defined(CONFIG_FLASH_VERIFY) if (memcmp(src_orig, addr_orig, cnt_orig)) { printf("\nVerify failed!\n"); - return ERR_PROG_ERROR; + return FL_ERR_PROG_ERROR; } #endif /* CONFIG_SYS_FLASH_VERIFY_AFTER_WRITE */

- return (ERR_OK); + return (FL_ERR_OK); }

/*----------------------------------------------------------------------- @@ -182,33 +182,33 @@ flash_write(char *src, ulong addr, ulong cnt) void flash_perror(int err) { switch (err) { - case ERR_OK: + case FL_ERR_OK: break; - case ERR_TIMEOUT: + case FL_ERR_TIMEOUT: puts ("Timeout writing to Flash\n"); break; - case ERR_NOT_ERASED: + case FL_ERR_NOT_ERASED: puts ("Flash not Erased\n"); break; - case ERR_PROTECTED: + case FL_ERR_PROTECTED: puts ("Can't write to protected Flash sectors\n"); break; - case ERR_INVAL: + case FL_ERR_INVAL: puts ("Outside available Flash\n"); break; - case ERR_ALIGN: + case FL_ERR_ALIGN: puts ("Start and/or end address not on sector boundary\n"); break; - case ERR_UNKNOWN_FLASH_VENDOR: + case FL_ERR_UNKNOWN_FLASH_VENDOR: puts ("Unknown Vendor of Flash\n"); break; - case ERR_UNKNOWN_FLASH_TYPE: + case FL_ERR_UNKNOWN_FLASH_TYPE: puts ("Unknown Type of Flash\n"); break; - case ERR_PROG_ERROR: + case FL_ERR_PROG_ERROR: puts ("General Flash Programming Error\n"); break; - case ERR_ABORTED: + case FL_ERR_ABORTED: puts("Flash Programming Aborted\n"); break; default: diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c index 8ade7949a68..6369c7127c6 100644 --- a/drivers/mtd/cfi_flash.c +++ b/drivers/mtd/cfi_flash.c @@ -592,11 +592,11 @@ static int flash_status_check(flash_info_t *info, flash_sect_t sector, flash_read_long(info, sector, 0)); flash_write_cmd(info, sector, 0, info->cmd_reset); udelay(1); - return ERR_TIMEOUT; + return FL_ERR_TIMEOUT; } udelay(1); /* also triggers watchdog */ } - return ERR_OK; + return FL_ERR_OK; }

/*----------------------------------------------------------------------- @@ -615,9 +615,9 @@ static int flash_full_status_check(flash_info_t *info, flash_sect_t sector, case CFI_CMDSET_INTEL_PROG_REGIONS: case CFI_CMDSET_INTEL_EXTENDED: case CFI_CMDSET_INTEL_STANDARD: - if (retcode == ERR_OK && + if (retcode == FL_ERR_OK && !flash_isset(info, sector, 0, FLASH_STATUS_DONE)) { - retcode = ERR_INVAL; + retcode = FL_ERR_INVAL; printf("Flash %s error at address %lx\n", prompt, info->start[sector]); if (flash_isset(info, sector, 0, FLASH_STATUS_ECLBS | @@ -626,14 +626,14 @@ static int flash_full_status_check(flash_info_t *info, flash_sect_t sector, } else if (flash_isset(info, sector, 0, FLASH_STATUS_ECLBS)) { puts("Block Erase Error.\n"); - retcode = ERR_NOT_ERASED; + retcode = FL_ERR_NOT_ERASED; } else if (flash_isset(info, sector, 0, FLASH_STATUS_PSLBS)) { puts("Locking Error\n"); } if (flash_isset(info, sector, 0, FLASH_STATUS_DPS)) { puts("Block locked.\n"); - retcode = ERR_PROTECTED; + retcode = FL_ERR_PROTECTED; } if (flash_isset(info, sector, 0, FLASH_STATUS_VPENS)) puts("Vpp Low Error.\n"); @@ -701,12 +701,12 @@ static int flash_status_poll(flash_info_t *info, void *src, void *dst, if (get_timer(start) > tout) { printf("Flash %s timeout at address %lx data %lx\n", prompt, (ulong)dst, (ulong)flash_read8(dst)); - return ERR_TIMEOUT; + return FL_ERR_TIMEOUT; } udelay(1); /* also triggers watchdog */ } #endif /* CONFIG_SYS_CFI_FLASH_STATUS_POLL */ - return ERR_OK; + return FL_ERR_OK; }

/*----------------------------------------------------------------------- @@ -809,7 +809,7 @@ static int flash_write_cfiword(flash_info_t *info, ulong dest, cfiword_t cword) break; } if (!flag) - return ERR_NOT_ERASED; + return FL_ERR_NOT_ERASED;

/* Disable interrupts which might cause a timeout here */ flag = disable_interrupts(); @@ -898,7 +898,7 @@ static int flash_write_cfibuffer(flash_info_t *info, ulong dest, uchar *cp, shift = 3; break; default: - retcode = ERR_INVAL; + retcode = FL_ERR_INVAL; goto out_unmap; }

@@ -929,7 +929,7 @@ static int flash_write_cfibuffer(flash_info_t *info, ulong dest, uchar *cp, } } if (!flag) { - retcode = ERR_NOT_ERASED; + retcode = FL_ERR_NOT_ERASED; goto out_unmap; }

@@ -949,7 +949,7 @@ static int flash_write_cfibuffer(flash_info_t *info, ulong dest, uchar *cp, retcode = flash_status_check(info, sector, info->buffer_write_tout, "write to buffer"); - if (retcode == ERR_OK) { + if (retcode == FL_ERR_OK) { /* reduce the number of loops by the width of * the port */ @@ -974,7 +974,7 @@ static int flash_write_cfibuffer(flash_info_t *info, ulong dest, uchar *cp, src += 8, dst += 8; break; default: - retcode = ERR_INVAL; + retcode = FL_ERR_INVAL; goto out_unmap; } } @@ -1024,7 +1024,7 @@ static int flash_write_cfibuffer(flash_info_t *info, ulong dest, uchar *cp, } break; default: - retcode = ERR_INVAL; + retcode = FL_ERR_INVAL; goto out_unmap; }

@@ -1042,7 +1042,7 @@ static int flash_write_cfibuffer(flash_info_t *info, ulong dest, uchar *cp,

default: debug("Unknown Command Set\n"); - retcode = ERR_INVAL; + retcode = FL_ERR_INVAL; break; }

@@ -1388,7 +1388,7 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) if (i > cnt) i = cnt; rc = flash_write_cfibuffer(info, wp, src, i); - if (rc != ERR_OK) + if (rc != FL_ERR_OK) return rc; i -= i & (info->portwidth - 1); wp += i; @@ -1397,7 +1397,7 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) FLASH_SHOW_PROGRESS(scale, dots, digit, i); /* Only check every once in a while */ if ((cnt & 0xFFFF) < buffered_size && ctrlc()) - return ERR_ABORTED; + return FL_ERR_ABORTED; } #else while (cnt >= info->portwidth) { @@ -1412,7 +1412,7 @@ int write_buff(flash_info_t *info, uchar *src, ulong addr, ulong cnt) FLASH_SHOW_PROGRESS(scale, dots, digit, info->portwidth); /* Only check every once in a while */ if ((cnt & 0xFFFF) < info->portwidth && ctrlc()) - return ERR_ABORTED; + return FL_ERR_ABORTED; } #endif /* CONFIG_SYS_FLASH_USE_BUFFER_WRITE */

diff --git a/include/flash.h b/include/flash.h index 3710a2731b7..77bee42f76b 100644 --- a/include/flash.h +++ b/include/flash.h @@ -125,16 +125,16 @@ void flash_perror(int err); /*----------------------------------------------------------------------- * return codes from flash_write(): */ -#define ERR_OK 0 -#define ERR_TIMEOUT 1 -#define ERR_NOT_ERASED 2 -#define ERR_PROTECTED 4 -#define ERR_INVAL 8 -#define ERR_ALIGN 16 -#define ERR_UNKNOWN_FLASH_VENDOR 32 -#define ERR_UNKNOWN_FLASH_TYPE 64 -#define ERR_PROG_ERROR 128 -#define ERR_ABORTED 256 +#define FL_ERR_OK 0 +#define FL_ERR_TIMEOUT 1 +#define FL_ERR_NOT_ERASED 2 +#define FL_ERR_PROTECTED 4 +#define FL_ERR_INVAL 8 +#define FL_ERR_ALIGN 16 +#define FL_ERR_UNKNOWN_FLASH_VENDOR 32 +#define FL_ERR_UNKNOWN_FLASH_TYPE 64 +#define FL_ERR_PROG_ERROR 128 +#define FL_ERR_ABORTED 256

/*----------------------------------------------------------------------- * Protection Flags for flash_protect():

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 | 408 +++++++++++++++++++ include/net-legacy.h | 649 +++++++++++++++++++++++++++++ include/net-lwip.h | 14 + include/net.h | 944 +------------------------------------------ 5 files changed, 1078 insertions(+), 941 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 ceb99a2698e..0fe1623c550 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..77bdf17c6cd --- /dev/null +++ b/include/net-common.h @@ -0,0 +1,408 @@ +/* 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 <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_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 + +extern int net_restart_wrap; /* Tried all network devices */ +extern uchar *net_rx_packets[PKTBUFSRX]; /* Receive packets */ + +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); + +/* + * 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); + +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 */ + +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_get_dev_index(void); +int eth_rx(void); /* Check for received packets */ +void eth_halt(void); /* stop SCC */ +const char *eth_get_name(void); +int eth_get_dev_index(void); +int eth_init_state_only(void); /* Set active 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 */ + +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)) + +/** + * 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); + +/* 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..0c0c873005a --- /dev/null +++ b/include/net-legacy.h @@ -0,0 +1,649 @@ +/* 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> +#include <rand.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 */ + +/* 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) + +/** + * 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); +/* Used only when NetConsole is enabled */ +int eth_is_active(struct udevice *dev); /* Test device for 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); + + +/* + * 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 +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. + */ + +#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)); + +#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 +#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; +#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 + +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); + +/** + * 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)); +} + +/** + * 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) */ +} + +/* 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); + +/** + * 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 + +#endif /* __NET_LEGACY_H__ */ diff --git a/include/net-lwip.h b/include/net-lwip.h new file mode 100644 index 00000000000..f5c743b8d11 --- /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(void); +struct netif *net_lwip_new_netif_noip(void); +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 ac511eab103..afa46f239ee 100644 --- a/include/net.h +++ b/include/net.h @@ -1,950 +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 -#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; -#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); +#if defined(CONFIG_NET_LWIP) +#include <net-lwip.h> #else -static inline void eth_set_enable_bootdevs(bool enable) {} +#include <net-legacy.h> #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__ */

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().

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- Makefile | 6 + boot/Kconfig | 3 +- cmd/Kconfig | 26 ++++ cmd/Makefile | 4 + cmd/net-lwip.c | 13 ++ common/board_r.c | 4 +- drivers/net/Kconfig | 2 +- include/net-lwip.h | 2 + net-lwip/Makefile | 15 +++ net-lwip/dhcp.c | 99 +++++++++++++++ net-lwip/eth_internal.h | 35 ++++++ net-lwip/net-lwip.c | 270 ++++++++++++++++++++++++++++++++++++++++ net-lwip/tftp.c | 11 ++ 13 files changed, 486 insertions(+), 4 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/Makefile b/Makefile index 0fe1623c550..92a0ab770bb 100644 --- a/Makefile +++ b/Makefile @@ -862,6 +862,7 @@ libs-y += env/ libs-y += lib/ libs-y += fs/ libs-$(CONFIG_NET) += net/ +libs-$(CONFIG_NET_LWIP) += net-lwip/ libs-y += disk/ libs-y += drivers/ libs-$(CONFIG_SYS_FSL_DDR) += drivers/ddr/fsl/ @@ -2132,6 +2133,11 @@ etags: cscope: $(FIND) $(FINDFLAGS) $(TAG_SUBDIRS) -name '*.[chS]' -print > \ cscope.files +ifdef CONFIG_NET_LWIP + echo net/eth-uclass.c net/eth_common.c net/eth_bootdev.c \ + net/mdio-uclass.c net/mdio-mux-uclass.c >> \ + cscope.files +endif @find $(TAG_SUBDIRS) -name '*.[chS]' -type l -print | \ grep -xvf - cscope.files > cscope.files.no-symlinks; \ mv cscope.files.no-symlinks cscope.files diff --git a/boot/Kconfig b/boot/Kconfig index 6f3096c15a6..004e69dd92a 100644 --- a/boot/Kconfig +++ b/boot/Kconfig @@ -378,7 +378,7 @@ config BOOT_DEFAULTS_CMDS select CMD_FAT select CMD_FS_GENERIC select CMD_PART if PARTITIONS - select CMD_DHCP if CMD_NET + select CMD_DHCP if CMD_NET || CMD_NET_LWIP select CMD_PING if CMD_NET select CMD_PXE if CMD_NET select CMD_BOOTI if ARM64 @@ -540,6 +540,7 @@ config BOOTMETH_EXTLINUX_PXE config BOOTMETH_EFILOADER bool "Bootdev support for EFI boot" depends on EFI_BINARY_EXEC + select CMD_TFTPBOOT if CMD_NET_LWIP default y help Enables support for EFI boot using bootdevs. This makes the diff --git a/cmd/Kconfig b/cmd/Kconfig index b026439c773..1bfa528e945 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2084,6 +2084,32 @@ config CMD_WOL

endif

+if NET_LWIP + +menuconfig CMD_NET_LWIP + bool "Network commands (lwIP)" + default y + +if CMD_NET_LWIP + +config CMD_DHCP + bool "dhcp" + select PROT_DHCP_LWIP + help + Boot image via network using DHCP/TFTP protocol + +config CMD_TFTPBOOT + bool "tftp" + select PROT_UDP_LWIP + default n + help + tftpboot - load file via network using TFTP protocol + Currently a placeholder (not implemented) + +endif + +endif + menu "Misc commands"

config CMD_2048 diff --git a/cmd/Makefile b/cmd/Makefile index 87133cc27a8..535b6838ca5 100644 --- a/cmd/Makefile +++ b/cmd/Makefile @@ -128,6 +128,10 @@ endif obj-$(CONFIG_CMD_MUX) += mux.o obj-$(CONFIG_CMD_NAND) += nand.o obj-$(CONFIG_CMD_NET) += net.o +obj-$(CONFIG_CMD_NET_LWIP) += net-lwip.o +ifdef CONFIG_CMD_NET_LWIP +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/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 da0b80f24ff..6548eb8fdd5 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) || defined(CONFIG_CMD_NET_LWIP) static int initr_net(void) { puts("Net: "); @@ -727,7 +727,7 @@ static init_fnc_t init_sequence_r[] = { #ifdef CONFIG_PCI_ENDPOINT pci_ep_init, #endif -#ifdef CONFIG_CMD_NET +#if defined(CONFIG_CMD_NET) || defined(CONFIG_CMD_NET_LWIP) INIT_FUNC_WATCHDOG_RESET initr_net, #endif diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index efc55e45ca8..640c4218518 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-lwip.h b/include/net-lwip.h index f5c743b8d11..46cf6875f7e 100644 --- a/include/net-lwip.h +++ b/include/net-lwip.h @@ -11,4 +11,6 @@ struct netif *net_lwip_new_netif_noip(void); void net_lwip_remove_netif(struct netif *netif); struct netif *net_lwip_get_netif(void);

+int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); + #endif /* __NET_LWIP_H__ */ diff --git a/net-lwip/Makefile b/net-lwip/Makefile new file mode 100644 index 00000000000..a56c32bfa74 --- /dev/null +++ b/net-lwip/Makefile @@ -0,0 +1,15 @@ +ccflags-y += -I$(srctree)/lib/lwip/lwip/src/include -I$(srctree)/lib/lwip/u-boot + +obj-$(CONFIG_$(SPL_TPL_)BOOTDEV_ETH) += ../net/eth_bootdev.o +obj-$(CONFIG_DM_MDIO) += ../net/mdio-uclass.o +obj-$(CONFIG_DM_MDIO_MUX) += ../net/mdio-mux-uclass.o +obj-$(CONFIG_$(SPL_)DM_ETH) += ../net/eth_common.o +obj-$(CONFIG_$(SPL_)DM_ETH) += ../net/eth-uclass.o +obj-$(CONFIG_$(SPL_)DM_ETH) += net-lwip.o +obj-$(CONFIG_CMD_DHCP) += dhcp.o +obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o + +# Disable this warning as it is triggered by: +# sprintf(buf, index ? "foo%d" : "foo", index) +# and this is intentional usage. +CFLAGS_eth_common.o += -Wno-format-extra-args diff --git a/net-lwip/dhcp.c b/net-lwip/dhcp.c new file mode 100644 index 00000000000..38ea565508f --- /dev/null +++ b/net-lwip/dhcp.c @@ -0,0 +1,99 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <console.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); +} + +int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + unsigned long start; + struct netif *netif; + struct dhcp *dhcp; + bool bound; + + netif = net_lwip_new_netif_noip(); + 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 { + eth_rx(); + 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 (dhcp->offered_gw_addr.addr != 0) + env_set("gatewayip", ip4addr_ntoa(&dhcp->offered_gw_addr)); + env_set("ipaddr", ip4addr_ntoa(&dhcp->offered_ip_addr)); + env_set("netmask", ip4addr_ntoa(&dhcp->offered_sn_mask)); + env_set("serverip", ip4addr_ntoa(&dhcp->server_ip_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 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..39e7e51e542 --- /dev/null +++ b/net-lwip/net-lwip.c @@ -0,0 +1,270 @@ +// 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/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+1) * PKTSIZE_ALIGN + PKTALIGN]; +uchar *net_rx_packets[PKTBUFSRX]; +uchar *net_rx_packet; +uchar *net_tx_packet; + +static err_t low_level_output(struct netif *netif, struct pbuf *p) +{ + int err; + + /* + * lwIP is alwys configured to use one device, the active one, so + * there is no need to use the netif parameter. + */ + + /* switch dev to active state */ + eth_init_state_only(); + + err = eth_send(p->payload, p->len); + if (err) { + log_err("eth_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 = low_level_output; + netif->mtu = 1500; + netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP; + + return ERR_OK; +} + +static void eth_init_rings(void) +{ + static bool called; + int i; + + if (called) + return; + called = true; + + net_tx_packet = &net_pkt_buf[0] + (PKTALIGN - 1); + net_tx_packet -= (ulong)net_tx_packet % PKTALIGN; + for (i = 0; i < PKTBUFSRX; i++) + net_rx_packets[i] = net_tx_packet + (i + 1) * 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[9] = { 'i', 'p', 'a' , 'd', 'd', 'r', }; + char maskstr[10] = { 'n', 'e', 't', 'm', 'a', 's', 'k', }; + char gwstr[12] = { 'g', 'a', 't', 'e', 'w', 'a', 'y', 'i', 'p', }; + char *env; + int ret; + + if (dev_seq(dev) > 0) { + ret = snprintf(ipstr, sizeof(ipstr), "ipaddr%d", dev_seq(dev)); + if (ret < 0 || ret >= sizeof(ipstr)) + return -1; + snprintf(maskstr, sizeof(maskstr), "netmask%d", dev_seq(dev)); + if (ret < 0 || ret >= sizeof(maskstr)) + return -1; + snprintf(gwstr, sizeof(gwstr), "gw%d", dev_seq(dev)); + if (ret < 0 || ret >= sizeof(gwstr)) + return -1; + } + + ip4_addr_set_zero(ip); + ip4_addr_set_zero(mask); + ip4_addr_set_zero(gw); + + env = env_get(ipstr); + if (env) + ipaddr_aton(env, ip); + + env = env_get(maskstr); + if (env) + ipaddr_aton(env, mask); + + env = env_get(gwstr); + if (env) + ipaddr_aton(env, gw); + + return 0; +} + +static struct netif *new_netif(bool with_ip) +{ + unsigned char enetaddr[ARP_HLEN]; + char hwstr[MAC_ADDR_STRLEN]; + ip4_addr_t ip, mask, gw; + struct udevice *dev; + struct netif *netif; + int ret; + static bool first_call = true; + + eth_init_rings(); + + if (first_call) { + if (eth_init()) { + printf("eth_init() error\n"); + return NULL; + } + first_call = false; + } + + netif_remove(net_lwip_get_netif()); + + eth_set_current(); + + dev = eth_get_dev(); + if (!dev) + return NULL; + + ip4_addr_set_zero(&ip); + ip4_addr_set_zero(&mask); + ip4_addr_set_zero(&gw); + + if (with_ip) + if (get_udev_ipv4_info(dev, &ip, &mask, &gw) < 0) + return NULL; + + eth_env_get_enetaddr_by_index("eth", dev_seq(dev), 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; + + if (!netif_add(netif, &ip, &mask, &gw, netif, 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; +} + +/* Configure lwIP to use the currently active network device */ +struct netif *net_lwip_new_netif() +{ + return new_netif(true); +} + +struct netif *net_lwip_new_netif_noip() +{ + + return new_netif(false); +} + +void net_lwip_remove_netif(struct netif *netif) +{ + netif_remove(netif); + free(netif); +} + +int net_init(void) +{ + net_lwip_new_netif(); + + 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; +} + +void net_process_received_packet(uchar *in_packet, int len) +{ + struct netif *netif; + struct pbuf *pbuf; + + if (len < ETHER_HDR_SIZE) + return; + +#if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) + if (push_packet) { + (*push_packet)(in_packet, len); + return; + } +#endif + + netif = net_lwip_get_netif(); + if (!netif) + return; + + pbuf = alloc_pbuf_and_copy(in_packet, len); + if (!pbuf) + return; + + netif->input(pbuf, netif); +} + +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().

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- cmd/Kconfig | 3 +- cmd/net-lwip.c | 8 ++ net-lwip/dhcp.c | 11 ++- net-lwip/tftp.c | 221 +++++++++++++++++++++++++++++++++++++++++++++++- 4 files changed, 237 insertions(+), 6 deletions(-)

diff --git a/cmd/Kconfig b/cmd/Kconfig index 1bfa528e945..94a8de266f6 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2101,10 +2101,9 @@ config CMD_DHCP config CMD_TFTPBOOT bool "tftp" select PROT_UDP_LWIP - default n + default y help tftpboot - load file via network using TFTP protocol - Currently a placeholder (not implemented)

endif

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/net-lwip/dhcp.c b/net-lwip/dhcp.c index 38ea565508f..af8ac214e81 100644 --- a/net-lwip/dhcp.c +++ b/net-lwip/dhcp.c @@ -88,11 +88,20 @@ 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/tftp.c b/net-lwip/tftp.c index 1fa246f55d9..295c8a7ebf2 100644 --- a/net-lwip/tftp.c +++ b/net-lwip/tftp.c @@ -2,10 +2,225 @@ /* Copyright (C) 2024 Linaro Ltd. */

#include <command.h> -#include <net-lwip.h> +#include <console.h> +#include <image.h> +#include <linux/delay.h> +#include <lwip/apps/tftp_client.h> +#include <lwip/timeouts.h> +#include <net.h> +#include <time.h> + +#define PROGRESS_PRINT_STEP_BYTES (100 * 1024) + +enum done_state { + NOT_DONE = 0, + SUCCESS = 1, + FAILURE = 2 +}; + +struct tftp_ctx { + ulong daddr; + ulong size; + ulong prevsize; + 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) { + /* Closing after an error */ + return; + } + + elapsed = get_timer(ctx->start_time); + ctx->done = SUCCESS; + printf("\nBytes 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; + if (ctx->size - ctx->prevsize > PROGRESS_PRINT_STEP_BYTES) { + printf("#"); + ctx->prevsize = ctx->size; + } + } + + 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_run(ulong addr, char *fname, ip_addr_t srvip) +{ + struct netif *netif; + struct tftp_ctx ctx; + err_t err; + + if (!fname || addr == 0) + return -1; + + netif = net_lwip_new_netif(); + if (!netif) + return -1; + + ctx.done = NOT_DONE; + ctx.size = 0; + ctx.prevsize = 0; + ctx.daddr = addr; + + printf("Using %s device\n", eth_get_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, TFTP_PORT, 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) { + eth_rx(); + sys_check_timeouts(); + if (ctrlc()) + 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; + } + return 0; + } + + return -1; +}

int do_tftpb(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { - /* Not implemented */ - return CMD_RET_FAILURE; + char *fname; + char *server_ip; + ip_addr_t srvip; + ulong addr; + char *end; + char *col; + + image_load_addr = 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]))) { + image_load_addr = addr; + fname = env_get("bootfile"); + } else { + fname = argv[1]; + } + break; + case 3: + image_load_addr = hextoul(argv[1], NULL); + fname = argv[2]; + break; + default: + return CMD_RET_USAGE; + } + + col = strchr(fname, ':'); + if (col) { + server_ip = fname; + *col = '\0'; + fname = col + 1; + } else { + server_ip = env_get("serverip"); + if (!server_ip) { + log_err("error: serverip variable has to be set\n"); + return CMD_RET_FAILURE; + } + } + if (!ipaddr_aton(server_ip, &srvip)) { + log_err("error: ipaddr_aton\n"); + return CMD_RET_FAILURE; + } + + if (!fname) { + log_err("error: no file name\n"); + return CMD_RET_FAILURE; + } + + if (!image_load_addr) { + log_err("error: no load address\n"); + return CMD_RET_FAILURE; + } + + if (tftp_run(image_load_addr, fname, srvip) < 0) + return CMD_RET_FAILURE; + + return CMD_RET_SUCCESS; }

Add CMD_DNS when NET_LWIP is enabled to provide the dns command using lwIP.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- cmd/Kconfig | 6 +++ cmd/net-lwip.c | 8 ++++ include/net-lwip.h | 1 + net-lwip/Makefile | 1 + net-lwip/dns.c | 117 +++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 133 insertions(+) create mode 100644 net-lwip/dns.c

diff --git a/cmd/Kconfig b/cmd/Kconfig index 07cfe824e3f..6ef0b52cd34 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2098,6 +2098,12 @@ config CMD_DHCP help Boot image via network using DHCP/TFTP protocol

+config CMD_DNS + bool "dns" + select PROT_DNS_LWIP + help + Lookup the IP of a hostname + config CMD_PING bool "ping" select PROT_RAW_LWIP diff --git a/cmd/net-lwip.c b/cmd/net-lwip.c index feed719beef..c021da6a674 100644 --- a/cmd/net-lwip.c +++ b/cmd/net-lwip.c @@ -27,3 +27,11 @@ U_BOOT_CMD( "[loadAddress] [[hostIPaddr:]bootfilename]" ); #endif + +#if defined(CONFIG_CMD_DNS) +U_BOOT_CMD( + dns, 3, 1, do_dns, + "lookup the IP of a hostname", + "hostname [envvar]" +); +#endif diff --git a/include/net-lwip.h b/include/net-lwip.h index b34f53b4891..4d41b0208a3 100644 --- a/include/net-lwip.h +++ b/include/net-lwip.h @@ -12,6 +12,7 @@ void net_lwip_remove_netif(struct netif *netif); struct netif *net_lwip_get_netif(void);

int do_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); +int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]);

#endif /* __NET_LWIP_H__ */ diff --git a/net-lwip/Makefile b/net-lwip/Makefile index e68d4e24197..aa247859483 100644 --- a/net-lwip/Makefile +++ b/net-lwip/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_$(SPL_)DM_ETH) += ../net/eth_common.o obj-$(CONFIG_$(SPL_)DM_ETH) += ../net/eth-uclass.o obj-$(CONFIG_$(SPL_)DM_ETH) += net-lwip.o obj-$(CONFIG_CMD_DHCP) += dhcp.o +obj-$(CONFIG_CMD_DNS) += dns.o obj-$(CONFIG_CMD_PING) += ping.o obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o

diff --git a/net-lwip/dns.c b/net-lwip/dns.c new file mode 100644 index 00000000000..081f0933715 --- /dev/null +++ b/net-lwip/dns.c @@ -0,0 +1,117 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <console.h> +#include <lwip/dns.h> +#include <lwip/timeouts.h> +#include <net.h> +#include <time.h> + +#define DNS_RESEND_MS 1000 +#define DNS_TIMEOUT_MS 10000 + +struct dns_cb_arg { + ip_addr_t host_ipaddr; + const char *var; + bool done; +}; + +static void do_dns_tmr(void *arg) +{ + dns_tmr(); +} + +static void dns_cb(const char *name, const ip_addr_t *ipaddr, void *arg) +{ + struct dns_cb_arg *dns_cb_arg = arg; + char *ipstr = ip4addr_ntoa(ipaddr); + + dns_cb_arg->done = true; + + if (!ipaddr) { + printf("DNS: host not found\n"); + dns_cb_arg->host_ipaddr.addr = 0; + return; + } + + if (dns_cb_arg->var) + env_set(dns_cb_arg->var, ipstr); + + printf("%s\n", ipstr); +} + +int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + struct dns_cb_arg dns_cb_arg = { }; + bool has_server = false; + struct netif *netif; + ip_addr_t ipaddr; + ip_addr_t ns; + ulong start; + char *nsenv; + char *name; + int ret; + + if (argc == 1 || argc > 3) + return CMD_RET_USAGE; + + if (argc >= 2) + name = argv[1]; + + if (argc == 3) + dns_cb_arg.var = argv[2]; + + netif = net_lwip_new_netif(); + if (!netif) + return -1; + + dns_init(); + + nsenv = env_get("dnsip"); + if (nsenv && ipaddr_aton(nsenv, &ns)) { + dns_setserver(0, &ns); + has_server = true; + } + + nsenv = env_get("dnsip2"); + if (nsenv && ipaddr_aton(nsenv, &ns)) { + dns_setserver(1, &ns); + has_server = true; + } + + if (!has_server) { + log_err("No valid name server (dnsip/dnsip2)\n"); + net_lwip_remove_netif(netif); + return CMD_RET_FAILURE; + } + + dns_cb_arg.done = false; + + ret = dns_gethostbyname(name, &ipaddr, dns_cb, &dns_cb_arg); + + if (ret == ERR_OK) { + dns_cb(name, &ipaddr, &dns_cb_arg); + } else if (ret == ERR_INPROGRESS) { + start = get_timer(0); + sys_timeout(DNS_RESEND_MS, do_dns_tmr, NULL); + do { + eth_rx(); + if (dns_cb_arg.done) + break; + sys_check_timeouts(); + if (ctrlc()) { + printf("\nAbort\n"); + break; + } + } while (get_timer(start) < DNS_TIMEOUT_MS); + sys_untimeout(do_dns_tmr, NULL); + } + + net_lwip_remove_netif(netif); + + if (dns_cb_arg.done && dns_cb_arg.host_ipaddr.addr != 0) + return CMD_RET_SUCCESS; + + return CMD_RET_FAILURE; +}

Add support for the wget command with NET_LWIP.

Based on code initially developed by Maxim U.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org Co-developed-by: Maxim Uvarov muvarov@gmail.com Cc: Maxim Uvarov muvarov@gmail.com Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- cmd/Kconfig | 7 ++ cmd/net-lwip.c | 8 ++ include/net-lwip.h | 18 +++ net-lwip/Makefile | 1 + net-lwip/wget.c | 269 +++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 303 insertions(+) create mode 100644 net-lwip/wget.c

diff --git a/cmd/Kconfig b/cmd/Kconfig index 6ef0b52cd34..d9a86540be6 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -2117,6 +2117,13 @@ config CMD_TFTPBOOT help tftpboot - load file via network using TFTP protocol

+config CMD_WGET + bool "wget" + select PROT_TCP_LWIP + help + wget is a simple command to download kernel, or other files, + from a http server over TCP. + endif

endif diff --git a/cmd/net-lwip.c b/cmd/net-lwip.c index c021da6a674..42f8bd6b259 100644 --- a/cmd/net-lwip.c +++ b/cmd/net-lwip.c @@ -35,3 +35,11 @@ U_BOOT_CMD( "hostname [envvar]" ); #endif + +#if defined(CONFIG_CMD_WGET) +U_BOOT_CMD( + wget, 3, 1, do_wget, + "boot image via network using HTTP protocol", + "[loadAddress] URL" +); +#endif diff --git a/include/net-lwip.h b/include/net-lwip.h index 4d41b0208a3..ddf25e61417 100644 --- a/include/net-lwip.h +++ b/include/net-lwip.h @@ -11,8 +11,26 @@ struct netif *net_lwip_new_netif_noip(void); void net_lwip_remove_netif(struct netif *netif); struct netif *net_lwip_get_netif(void);

+/** + * 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_dhcp(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_dns(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); int do_ping(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]); +int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]);

#endif /* __NET_LWIP_H__ */ diff --git a/net-lwip/Makefile b/net-lwip/Makefile index aa247859483..bc011bb0e32 100644 --- a/net-lwip/Makefile +++ b/net-lwip/Makefile @@ -10,6 +10,7 @@ obj-$(CONFIG_CMD_DHCP) += dhcp.o obj-$(CONFIG_CMD_DNS) += dns.o obj-$(CONFIG_CMD_PING) += ping.o obj-$(CONFIG_CMD_TFTPBOOT) += tftp.o +obj-$(CONFIG_CMD_WGET) += wget.o

# Disable this warning as it is triggered by: # sprintf(buf, index ? "foo%d" : "foo", index) diff --git a/net-lwip/wget.c b/net-lwip/wget.c new file mode 100644 index 00000000000..069299bd469 --- /dev/null +++ b/net-lwip/wget.c @@ -0,0 +1,269 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Copyright (C) 2024 Linaro Ltd. */ + +#include <command.h> +#include <console.h> +#include <display_options.h> +#include <image.h> +#include <lwip/apps/http_client.h> +#include <lwip/timeouts.h> +#include <net.h> +#include <time.h> + +#define SERVER_NAME_SIZE 200 +#define HTTP_PORT_DEFAULT 80 +#define PROGRESS_PRINT_STEP_BYTES (100 * 1024) + +enum done_state { + NOT_DONE = 0, + SUCCESS = 1, + FAILURE = 2 +}; + +struct wget_ctx { + ulong daddr; + ulong saved_daddr; + ulong size; + ulong prevsize; + ulong start_time; + enum done_state done; +}; + +static int parse_url(char *url, char *host, u16 *port, char **path) +{ + char *p, *pp; + long lport; + + p = strstr(url, "http://"); + if (!p) + return -EINVAL; + + p += strlen("http://"); + + /* Parse hostname */ + pp = strchr(p, ':'); + if (!pp) + pp = strchr(p, '/'); + if (!pp) + return -EINVAL; + + if (p + SERVER_NAME_SIZE <= pp) + return -EINVAL; + + memcpy(host, p, pp - p); + host[pp - p + 1] = '\0'; + + if (*pp == ':') { + /* Parse port number */ + p = pp + 1; + lport = simple_strtol(p, &pp, 10); + if (pp && *pp != '/') + return -EINVAL; + if (lport > 65535) + return -EINVAL; + *port = (u16)lport; + } else { + *port = HTTP_PORT_DEFAULT; + } + if (*pp != '/') + return -EINVAL; + *path = pp; + + return 0; +} + +static err_t httpc_recv_cb(void *arg, struct altcp_pcb *pcb, struct pbuf *pbuf, + err_t err) +{ + struct wget_ctx *ctx = arg; + struct pbuf *buf; + + if (!pbuf) + return ERR_BUF; + + for (buf = pbuf; buf; buf = buf->next) { + memcpy((void *)ctx->daddr, buf->payload, buf->len); + ctx->daddr += buf->len; + ctx->size += buf->len; + if (ctx->size - ctx->prevsize > PROGRESS_PRINT_STEP_BYTES) { + printf("#"); + ctx->prevsize = ctx->size; + } + } + + altcp_recved(pcb, pbuf->tot_len); + pbuf_free(pbuf); + return ERR_OK; +} + +static void httpc_result_cb(void *arg, httpc_result_t httpc_result, + u32_t rx_content_len, u32_t srv_res, err_t err) +{ + struct wget_ctx *ctx = arg; + ulong elapsed; + + if (httpc_result != HTTPC_RESULT_OK) { + log_err("\nHTTP client error %d\n", httpc_result); + ctx->done = FAILURE; + return; + } + + elapsed = get_timer(ctx->start_time); + if (rx_content_len > PROGRESS_PRINT_STEP_BYTES) + printf("\n"); + printf("%u bytes transferred in %lu ms (", rx_content_len, + get_timer(ctx->start_time)); + print_size(rx_content_len / elapsed * 1000, "/s)\n"); + + if (env_set_hex("filesize", rx_content_len) || + env_set_hex("fileaddr", ctx->saved_daddr)) { + log_err("Could not set filesize or fileaddr\n"); + ctx->done = FAILURE; + return; + } + + ctx->done = SUCCESS; +} + +int wget_with_dns(ulong dst_addr, char *uri) +{ + char server_name[SERVER_NAME_SIZE]; + httpc_connection_t conn; + httpc_state_t *state; + struct netif *netif; + struct wget_ctx ctx; + char *path; + u16 port; + + ctx.daddr = dst_addr; + ctx.saved_daddr = dst_addr; + ctx.done = NOT_DONE; + ctx.size = 0; + ctx.prevsize = 0; + + if (parse_url(uri, server_name, &port, &path)) + return CMD_RET_USAGE; + + netif = net_lwip_new_netif(); + if (!netif) + return -1; + + memset(&conn, 0, sizeof(conn)); + conn.result_fn = httpc_result_cb; + ctx.start_time = get_timer(0); + if (httpc_get_file_dns(server_name, port, path, &conn, httpc_recv_cb, + &ctx, &state)) { + net_lwip_remove_netif(netif); + return CMD_RET_FAILURE; + } + + while (!ctx.done) { + eth_rx(); + sys_check_timeouts(); + if (ctrlc()) + break; + } + + net_lwip_remove_netif(netif); + + if (ctx.done == SUCCESS) + return 0; + + return -1; +} + +int do_wget(struct cmd_tbl *cmdtp, int flag, int argc, char * const argv[]) +{ + char *end; + char *url; + ulong dst_addr; + + if (argc < 2 || argc > 3) + return CMD_RET_USAGE; + + dst_addr = hextoul(argv[1], &end); + if (end == (argv[1] + strlen(argv[1]))) { + if (argc < 3) + return CMD_RET_USAGE; + url = argv[2]; + } else { + dst_addr = image_load_addr; + url = argv[1]; + } + + if (wget_with_dns(dst_addr, url)) + return CMD_RET_FAILURE; + + return CMD_RET_SUCCESS; +} + +/** + * wget_validate_uri() - validate the uri for wget + * + * @uri: uri string + * + * This function follows the current U-Boot wget implementation. + * scheme: only "http:" is supported + * authority: + * - user information: not supported + * - host: supported + * - port: not supported(always use the default port) + * + * Uri is expected to be correctly percent encoded. + * This is the minimum check, control codes(0x1-0x19, 0x7F, except '\0') + * and space character(0x20) are not allowed. + * + * TODO: stricter uri conformance check + * + * Return: true on success, false on failure + */ +bool wget_validate_uri(char *uri) +{ + char c; + bool ret = true; + char *str_copy, *s, *authority; + + for (c = 0x1; c < 0x21; c++) { + if (strchr(uri, c)) { + log_err("invalid character is used\n"); + return false; + } + } + if (strchr(uri, 0x7f)) { + log_err("invalid character is used\n"); + return false; + } + + if (strncmp(uri, "http://", 7)) { + log_err("only http:// is supported\n"); + return false; + } + str_copy = strdup(uri); + if (!str_copy) + return false; + + s = str_copy + strlen("http://"); + authority = strsep(&s, "/"); + if (!s) { + log_err("invalid uri, no file path\n"); + ret = false; + goto out; + } + s = strchr(authority, '@'); + if (s) { + log_err("user information is not supported\n"); + ret = false; + goto out; + } + s = strchr(authority, ':'); + if (s) { + log_err("user defined port is not supported\n"); + ret = false; + goto out; + } + +out: + free(str_copy); + + return ret; +}

Add qemu_arm64_lwip_defconfig which #include's qemu_arm64_defconfig and selects NET_LWIP instead of NET. This config has all the supported net commands enabled.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org --- configs/qemu_arm64_lwip_defconfig | 4 ++++ 1 file changed, 4 insertions(+) create mode 100644 configs/qemu_arm64_lwip_defconfig

diff --git a/configs/qemu_arm64_lwip_defconfig b/configs/qemu_arm64_lwip_defconfig new file mode 100644 index 00000000000..1f5fd097f0e --- /dev/null +++ b/configs/qemu_arm64_lwip_defconfig @@ -0,0 +1,4 @@ +#include <configs/qemu_arm64_defconfig> +CONFIG_NET_LWIP=y +CONFIG_CMD_DNS=y +CONFIG_CMD_WGET=y

Add myself as a maintainer for the lwIP network stack integration code and network commands. The library code itself (i.e., most files under lib/lwip/ except README, Makefile and integration files in u-boot) is unmodified from upstream and therefore does not need a maintainer.

Signed-off-by: Jerome Forissier jerome.forissier@linaro.org Reviewed-by: Ilias Apalodimas ilias.apalodimas@linaro.org --- MAINTAINERS | 11 +++++++++++ 1 file changed, 11 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS index f8afd7d51e2..11105869304 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1310,6 +1310,17 @@ F: drivers/net/ F: include/net.h F: net/

+NETWORK (LWIP) +M: Jerome Forissier jerome.forissier@linaro.org +S: Maintained +F: cmd/net-lwip.c +F: configs/qemu_arm64_lwip_defconfig +F: include/net-lwip.h +F: lib/lwip/Makefile +F: lib/lwip/README +F: lib/lwip/u-boot/ +F: net-lwip/ + NIOS M: Thomas Chou thomas@wytron.com.tw S: Maintained