From patchwork Thu Mar 8 04:43:35 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Duncan Hare X-Patchwork-Id: 882964 X-Patchwork-Delegate: joe.hershberger@gmail.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=synoia.com Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=yahoo.com header.i=@yahoo.com header.b="Guv8Tqxc"; dkim-atps=neutral Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3zxdHT0gSlz9sfP for ; Thu, 8 Mar 2018 15:45:40 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id B9C35C21F05; Thu, 8 Mar 2018 04:45:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id BBFEBC21F17; Thu, 8 Mar 2018 04:44:17 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 8989FC21F2F; Thu, 8 Mar 2018 04:44:09 +0000 (UTC) Received: from sonic304-26.consmr.mail.ne1.yahoo.com (sonic304-26.consmr.mail.ne1.yahoo.com [66.163.191.152]) by lists.denx.de (Postfix) with ESMTPS id 61B89C21F47 for ; Thu, 8 Mar 2018 04:44:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yahoo.com; s=s2048; t=1520484241; bh=BFJyzTqLeqBc2N206YhvZ2QkbmFRrWHU6C7q8K+vKPE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From:Subject; b=Guv8Tqxcm+PTeuckONXODYzJG4fAbMxws37L4MalXRZ5ajBd8tdDMJDiPCv7MAUKoGOx1UHpuPou22cFCTfizq7boV0cQUzqzwqELqaWhveQ4wCVHNtFNriSk2mauEGP3afhl6yH0GOsI1syWF7nCBumfq7kA4q+/xG0wM9ocyG6cXyjG8ay2fmpFKM7ewkB8ujFm3GDmKMdKcnxzh3wjOr7UKIl74fzdTMpl4pJyzOVE/U5m2JfGCswp/7KcHfy4ryC18rPPHKeux7s4TgN6OGtivxhegncDz6aXMrCGiMLrx+BvUTLicUhjoOtkax1fd34LVkdf+gNfIxcHLYJzw== X-YMail-OSG: 2HlN1_cVM1m5l9iet7skZkJmXqc4ohLukC1MDM_FVg98sYQzjBMqGCC.Co5zIXY BVQmt0wSH8JHLuseIMaN0M9RtnJLDjagEqhWeydYRhcE5FBV8kHU0AN.SIVvasC93oilE44pzSL7 rj2eoxgwIOuJsvwAazuP8cMa81go42CpWzxXy2quLRXpKQvfuKd3aYv9gcz053Yq1mX6m_v5Rn1t zGLzAD80TpRkJYjtv355DzGSVe2v6D4ImSg_rbHryg095be7O4inJLYUYJtDI88CGqMscly_MBkK VLBRqUCs2hQZaAWahUZOX_JrZoGIMltCusutDV1rEQ6pSZN0c3OZkFwqHHY3WLuOOyqpIPKEOrGX Twdlga.uCyaawjKEoFsPl.H0OK7dTp2_KadfDkWaoF7J2t4ep4YStlbagVD7AJYaUYmuxUwWyWcb vDFkEFEAfvCSdIH62SrDPLbiDLktdO9i9CaIr9rK0Au0x8qZ_8.vapzJ0c03aGZaaScvPqK6HTm3 BM5DEDPs52KbB_CXFOoZ13Tdt9VlFmiRnEDK4MCVzvc4iyg-- Received: from sonic.gate.mail.ne1.yahoo.com by sonic304.consmr.mail.ne1.yahoo.com with HTTP; Thu, 8 Mar 2018 04:44:01 +0000 Received: from smtp232.mail.ne1.yahoo.com (EHLO raspberrypi.Danum.local) ([10.218.253.209]) by smtp413.mail.ne1.yahoo.com (JAMES SMTP Server ) with ESMTPA ID c95d066c278b766994454db6eee0d9dc; Thu, 08 Mar 2018 04:44:00 +0000 (UTC) From: DH@synoia.com To: DuncanCHare@yahoo.com Date: Wed, 7 Mar 2018 20:43:35 -0800 Message-Id: <20180308044336.4345-3-DH@synoia.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180308044336.4345-1-DH@synoia.com> References: <20180308044336.4345-1-DH@synoia.com> Cc: Duncan Hare , Joe Hershberger , u-boot@lists.denx.de, Maxime Ripard , Jagan Teki Subject: [U-Boot] [PATCH v8 3/3] Adding wget X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Duncan Hare >>>>> Adding wget <<<< Signed-off-by: Duncan Hare --- All the code is new, and not copied from any source. Adding net/wget.c include/net/wget.h Chages to cmd/net.c cmd/Kconfig Changes in v8: None cmd/Kconfig | 93 ++---------- cmd/net.c | 13 ++ include/net/wget.h | 17 +++ net/Makefile | 1 + net/wget.c | 420 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 5 files changed, 467 insertions(+), 77 deletions(-) create mode 100644 include/net/wget.h create mode 100644 net/wget.c diff --git a/cmd/Kconfig b/cmd/Kconfig index 136836d146..46b489a966 100644 --- a/cmd/Kconfig +++ b/cmd/Kconfig @@ -23,29 +23,6 @@ config HUSH_PARSER If disabled, you get the old, much simpler behaviour with a somewhat smaller memory footprint. -config CMDLINE_EDITING - bool "Enable command line editing" - depends on CMDLINE - default y - help - Enable editing and History functions for interactive command line - input operations - -config AUTO_COMPLETE - bool "Enable auto complete using TAB" - depends on CMDLINE - default y - help - Enable auto completion of commands using TAB. - -config SYS_LONGHELP - bool "Enable long help messages" - depends on CMDLINE - default y if CMDLINE - help - Defined when you want long help messages included - Do not set this option when short of memory. - config SYS_PROMPT string "Shell prompt" default "=> " @@ -331,12 +308,6 @@ config CMD_SPL_WRITE_SIZE flash used by Falcon-mode boot. See the documentation until CMD_SPL for detail. -config CMD_FITUPD - bool "fitImage update command" - help - Implements the 'fitupd' command, which allows to automatically - store software updates present on a TFTP server in NOR Flash - config CMD_THOR_DOWNLOAD bool "thor - TIZEN 'thor' download" help @@ -426,7 +397,6 @@ menu "Memory commands" config CMD_CRC32 bool "crc32" select HASH - default n if ARCH_SUNXI default y help Compute CRC32. @@ -568,7 +538,6 @@ config CMD_LZMADEC config CMD_UNZIP bool "unzip" - default n if ARCH_SUNXI default y if CMD_BOOTI help Uncompress a zip-compressed memory region. @@ -611,7 +580,7 @@ config CMD_DEMO config CMD_DFU bool "dfu" - select DFU + select USB_FUNCTION_DFU help Enables the command "dfu" which is used to have U-Boot create a DFU class device via USB. This command requires that the "dfu_alt_info" @@ -645,7 +614,6 @@ config CMD_FLASH config CMD_FPGA bool "fpga" - depends on FPGA default y help FPGA support. @@ -701,7 +669,6 @@ config CMD_GPT bool "GPT (GUID Partition Table) command" select PARTITION_UUIDS select EFI_PARTITION - select HAVE_BLOCK_DEVICE imply RANDOM_UUID help Enable the 'gpt' command to ready and write GPT style partition @@ -709,7 +676,6 @@ config CMD_GPT config RANDOM_UUID bool "GPT Random UUID generation" - select LIB_UUID help Enable the generation of partitions with random UUIDs if none are provided. @@ -780,14 +746,12 @@ config CMD_I2C config CMD_LOADB bool "loadb" - default n if ARCH_SUNXI default y help Load a binary file over serial line. config CMD_LOADS bool "loads" - default n if ARCH_SUNXI default y help Load an S-Record file over serial line @@ -849,7 +813,6 @@ config CMD_ONENAND config CMD_PART bool "part" select PARTITION_UUIDS - select HAVE_BLOCK_DEVICE help Read and display information about the partition table on various media. @@ -900,15 +863,6 @@ config CMD_SAVES Provides a way to save a binary file using the Motorola S-Record format over the serial line. -config CMD_SCSI - bool "scsi - Access to SCSI devices" - default y if SCSI - help - This provides a 'scsi' command which provides access to SCSI (Small - Computer System Interface) devices. The command provides a way to - scan the bus, reset the bus, read and write data and get information - about devices. - config CMD_SDRAM bool "sdram - Print SDRAM configuration information" help @@ -951,7 +905,6 @@ config CMD_UNIVERSE config CMD_USB bool "usb" - select HAVE_BLOCK_DEVICE help USB support. @@ -961,18 +914,9 @@ config CMD_USB_SDP help Enables the command "sdp" which is used to have U-Boot emulating the Serial Download Protocol (SDP) via USB. -config CMD_ROCKUSB - bool "rockusb" - depends on USB_FUNCTION_ROCKUSB - help - Rockusb protocol is widely used by Rockchip SoC based devices. It can - read/write info, image to/from devices. This enable rockusb command - support to communication with rockusb device. for more detail about - this command, please read doc/README.rockusb. config CMD_USB_MASS_STORAGE bool "UMS usb mass storage" - select USB_FUNCTION_MASS_STORAGE help USB mass storage support @@ -1012,10 +956,9 @@ endmenu menu "Network commands" -if NET - config CMD_NET bool "bootp, tftpboot" + select NET default y help Network commands. @@ -1039,13 +982,11 @@ config CMD_RARP config CMD_DHCP bool "dhcp" - depends on CMD_NET help Boot image via network using DHCP/TFTP protocol config CMD_PXE bool "pxe" - depends on CMD_NET select MENU help Boot image via network using PXE protocol @@ -1094,7 +1035,11 @@ config CMD_ETHSW operations such as enabling / disabling a port and viewing/maintaining the filtering database (FDB) -endif +config CMD_WGET + bool "wget" + select TCP + help + Download a kernel, or other files, from a web server over TCP. endmenu @@ -1187,7 +1132,6 @@ config CMD_GETTIME # TODO: rename to CMD_SLEEP config CMD_MISC bool "sleep" - default n if ARCH_SUNXI default y help Delay execution for some time @@ -1227,7 +1171,6 @@ config CMD_TERMINAL config CMD_UUID bool "uuid, guid - generation of unique IDs" - select LIB_UUID help This enables two commands: @@ -1239,8 +1182,6 @@ config CMD_UUID endmenu -source "cmd/ti/Kconfig" - config CMD_BOOTSTAGE bool "Enable the 'bootstage' command" depends on BOOTSTAGE @@ -1422,20 +1363,17 @@ config CMD_CRAMFS config CMD_EXT2 bool "ext2 command support" - select FS_EXT4 help Enables EXT2 FS command config CMD_EXT4 bool "ext4 command support" - select FS_EXT4 help Enables EXT4 FS command config CMD_EXT4_WRITE depends on CMD_EXT4 bool "ext4 write command support" - select EXT4_WRITE help Enables EXT4 FS write command @@ -1503,6 +1441,15 @@ config CMD_REISER reiserls - list files reiserload - load a file +config CMD_SCSI + bool "scsi - Access to SCSI devices" + default y if SCSI + help + This provides a 'scsi' command which provides access to SCSI (Small + Computer System Interface) devices. The command provides a way to + scan the bus, reset the bus, read and write data and get information + about devices. + config CMD_YAFFS2 bool "yaffs2 - Access of YAFFS2 filesystem" depends on YAFFS2 @@ -1561,14 +1508,6 @@ config CMD_KGDB single-stepping, inspecting variables, etc. This is supported only on PowerPC at present. -config CMD_LOG - bool "log - Generation, control and access to logging" - help - This provides access to logging features. It allows the output of - log data to be controlled to a limited extent (setting up the default - maximum log level for emitting of records). It also provides access - to a command used for testing the log system. - config CMD_TRACE bool "trace - Support tracing of function calls and timing" help diff --git a/cmd/net.c b/cmd/net.c index d7c776aacf..6a7a51f357 100644 --- a/cmd/net.c +++ b/cmd/net.c @@ -110,6 +110,19 @@ U_BOOT_CMD( ); #endif +#if defined(CONFIG_CMD_WGET) +static int do_wget(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + return netboot_common(WGET, cmdtp, argc, argv); +} + +U_BOOT_CMD( + wget, 3, 1, do_wget, + "boot image via network using HTTP protocol", + "[loadAddress] [[hostIPaddr:]path and image name]" +); +#endif + static void netboot_update_env(void) { char tmp[22]; diff --git a/include/net/wget.h b/include/net/wget.h new file mode 100644 index 0000000000..dce16c573d --- /dev/null +++ b/include/net/wget.h @@ -0,0 +1,17 @@ +/* + * Duncan Hare Copyright 2017 + */ + +void wget_start(void); /* Begin wget */ + +enum WGET_STATE { + WGET_CLOSED, + WGET_CONNECTING, + WGET_CONNECTED, + WGET_TRANSFERRING, + WGET_TRANSFERRED}; + +#define DEBUG_WGET 0 /* Set to 1 for debug messges */ +#define SERVER_PORT 80 +#define WGET_RETRY_COUNT 30 +#define WGET_TIMEOUT 2000UL diff --git a/net/Makefile b/net/Makefile index 25729ebeeb..f83df5b728 100644 --- a/net/Makefile +++ b/net/Makefile @@ -26,6 +26,7 @@ obj-$(CONFIG_CMD_RARP) += rarp.o obj-$(CONFIG_CMD_SNTP) += sntp.o obj-$(CONFIG_CMD_NET) += tftp.o obj-$(CONFIG_TCP) += tcp.o +obj-$(CONFIG_CMD_WGET) += wget.o # Disable this warning as it is triggered by: # sprintf(buf, index ? "foo%d" : "foo", index) # and this is intentional usage. diff --git a/net/wget.c b/net/wget.c new file mode 100644 index 0000000000..5429a1f7b1 --- /dev/null +++ b/net/wget.c @@ -0,0 +1,420 @@ +/* + * WGET/HTTP support driver based on U-BOOT's nfs.c + * Copyright Duncan Hare 2017 + * SPDX-License-Identifier:GPL-2.0+ + */ + +#include +#include +#include +#include +#include +#include + +const char bootfile1[] = "GET "; +const char bootfile3[] = " HTTP/1.0\r\n\r\n"; +const char http_eom[] = "\r\n\r\n"; +const char http_ok[] = "200"; +const char content_len[] = "Content-Length"; +const char linefeed[] = "\r\n"; +static struct in_addr web_server_ip; +static int our_port; +static int wget_timeout_count; + +struct pkt_qd { + uchar *pkt; + unsigned int tcp_seq_num; + unsigned int len; +}; + +/* + * This is a control structure for out of order packets received. + * The actual packet bufers are in the kernel space, and are + * expected to be overwritten by the downloaded image. + */ + +static struct pkt_qd pkt_q[PKTBUFSRX / 4]; +static int pkt_q_idx; +static unsigned long content_length; +static unsigned int packets; + +static unsigned int initial_data_seq_num; + +static enum WGET_STATE wget_state; + +static char *image_url; +static unsigned int wget_timeout = WGET_TIMEOUT; + +static void wget_timeout_handler(void); + +static enum net_loop_state wget_loop_state; + +/* Timeout retry parameters */ +static u8 r_action; +static unsigned int r_tcp_ack_num; +static unsigned int r_tcp_seq_num; +static int r_len; + +static inline int store_block(uchar *src, unsigned int offset, unsigned int len) +{ + ulong newsize = offset + len; + uchar *ptr; + +#ifdef CONFIG_SYS_DIRECT_FLASH_WGET + int i, rc = 0; + + for (i = 0; i < CONFIG_SYS_MAX_FLASH_BANKS; i++) { + /* start address in flash? */ + if (load_addr + offset >= flash_info[i].start[0]) { + rc = 1; + break; + } + } + + if (rc) { /* Flash is destination for this packet */ + rc = flash_write((uchar *)src, + (ulong)(load_addr + offset), len); + if (rc) { + flash_perror(rc); + return -1; + } + } else { +#endif /* CONFIG_SYS_DIRECT_FLASH_WGET */ + + ptr = map_sysmem(load_addr + offset, len); + memcpy(ptr, src, len); + unmap_sysmem(ptr); + +#ifdef CONFIG_SYS_DIRECT_FLASH_WGET + } +#endif + if (net_boot_file_size < (offset + len)) + net_boot_file_size = newsize; + return 0; +} + +/* + * wget response dispatcher + * WARNING, This, and only this, is the place in wget,c where + * SEQUENCE NUMBERS are swapped between incoming (RX) + * and outgoing (TX). + * Procedure wget_handler() is correct for RX traffic. + */ +static void wget_send_stored(void) +{ + u8 action = r_action; + unsigned int tcp_ack_num = r_tcp_ack_num; + unsigned int tcp_seq_num = r_tcp_seq_num; + int len = r_len; + uchar *ptr; + uchar *offset; + + tcp_ack_num = tcp_ack_num + len; + + switch (wget_state) { + case WGET_CLOSED: + debug_cond(DEBUG_WGET, "wget: send SYN\n"); + wget_state = WGET_CONNECTING; + net_send_tcp_packet(0, SERVER_PORT, our_port, action, + tcp_seq_num, tcp_ack_num); + packets = 0; + break; + case WGET_CONNECTING: + pkt_q_idx = 0; + net_send_tcp_packet(0, SERVER_PORT, our_port, action, + tcp_seq_num, tcp_ack_num); + + ptr = net_tx_packet + net_eth_hdr_size() + + IP_TCP_HDR_SIZE + TCP_TSOPT_SIZE + 2; + offset = ptr; + + memcpy(offset, &bootfile1, strlen(bootfile1)); + offset = offset + strlen(bootfile1); + + memcpy(offset, image_url, strlen(image_url)); + offset = offset + strlen(image_url); + + memcpy(offset, &bootfile3, strlen(bootfile3)); + offset = offset + strlen(bootfile3); + net_send_tcp_packet((offset - ptr), SERVER_PORT, our_port, + TCP_PUSH, tcp_seq_num, tcp_ack_num); + wget_state = WGET_CONNECTED; + break; + case WGET_CONNECTED: + case WGET_TRANSFERRING: + case WGET_TRANSFERRED: + net_send_tcp_packet(0, SERVER_PORT, our_port, action, + tcp_seq_num, tcp_ack_num); + break; + } +} + +static void wget_send(u8 action, unsigned int tcp_ack_num, + unsigned int tcp_seq_num, int len) +{ + r_action = action; + r_tcp_ack_num = tcp_ack_num; + r_tcp_seq_num = tcp_seq_num; + r_len = len; + wget_send_stored(); +} + +void wget_fail(char *error_message, unsigned int tcp_seq_num, + unsigned int tcp_ack_num, u8 action) +{ + printf("%s", error_message); + printf("%s", "wget: Transfer Fail\n"); + net_set_timeout_handler(0, NULL); + wget_send(action, tcp_seq_num, tcp_ack_num, 0); +} + +void wget_success(u8 action, unsigned int tcp_seq_num, + unsigned int tcp_ack_num, int len, int packets) +{ + printf("Packets received %d, Transfer Successful\n", packets); + wget_send(action, tcp_seq_num, tcp_ack_num, len); +} + +/* + * Interfaces of U-BOOT + */ +static void wget_timeout_handler(void) +{ + if (++wget_timeout_count > WGET_RETRY_COUNT) { + puts("\nRetry count exceeded; starting again\n"); + wget_send(TCP_RST, 0, 0, 0); + net_start_again(); + } else { + puts("T "); + net_set_timeout_handler(wget_timeout + + WGET_TIMEOUT * wget_timeout_count, + wget_timeout_handler); + wget_send_stored(); + } +} + +static void wget_connected(uchar *pkt, unsigned int tcp_seq_num, + struct in_addr action_and_state, + unsigned int tcp_ack_num, unsigned int len) +{ + u8 action = action_and_state.s_addr; + uchar *pkt_in_q; + char *pos; + int hlen; + int i; + + pkt[len] = '\0'; + pos = strstr((char *)pkt, http_eom); + + if (pos == 0) { + debug_cond(DEBUG_WGET, + "wget: Connected, data before Header %p\n", pkt); + pkt_in_q = (void *)load_addr + 0x20000 + (pkt_q_idx * 0x800); + memcpy(pkt_in_q, pkt, len); + pkt_q[pkt_q_idx].pkt = pkt_in_q; + pkt_q[pkt_q_idx].tcp_seq_num = tcp_seq_num; + pkt_q[pkt_q_idx].len = len; + pkt_q_idx++; + } else { + debug_cond(DEBUG_WGET, "wget: Connected HTTP Header %p\n", pkt); + hlen = pos - (char *)pkt + sizeof(http_eom) - 1; + pos = strstr((char *)pkt, linefeed); + if (pos > 0) + i = pos - (char *)pkt; + else + i = hlen; + tcp_print_buffer(pkt, i, i, -1, 0); + + wget_state = WGET_TRANSFERRING; + + if (strstr((char *)pkt, http_ok) == 0) { + debug_cond(DEBUG_WGET, + "wget: Connected Bad Xfer\n"); + wget_loop_state = NETLOOP_FAIL; + wget_send(action, tcp_seq_num, tcp_ack_num, len); + } else { + debug_cond(DEBUG_WGET, + "wget: Connctd pkt %p hlen %x\n", + pkt, hlen); + initial_data_seq_num = tcp_seq_num + hlen; + + pos = strstr((char *)pkt, content_len); + if (!pos) { + content_length = -1; + } else { + pos = pos + sizeof(content_len) + 2; + strict_strtoul(pos, 10, &content_length); + debug_cond(DEBUG_WGET, + "wget: Connected Len %lu\n", + content_length); + } + + net_boot_file_size = 0; + + if (len > hlen) + store_block(pkt + hlen, 0, len - hlen); + debug_cond(DEBUG_WGET, + "wget: Connected Pkt %p hlen %x\n", + pkt, hlen); + + for (i = 0; i < pkt_q_idx; i++) { + store_block(pkt_q[i].pkt, + pkt_q[i].tcp_seq_num - + initial_data_seq_num, + pkt_q[i].len); + debug_cond(DEBUG_WGET, + "wget: Connctd pkt Q %p len %x\n", + pkt_q[i].pkt, pkt_q[i].len); + } + } + } + wget_send(action, tcp_seq_num, tcp_ack_num, len); +} + + /* + * In the "application push" invocation, the TCP header with all + * its information is pointed to by the packet pointer. + * + * in the typedef + * void rxhand_tcp(uchar *pkt, unsigned int dport, + * struct in_addr sip, unsigned int sport, + * unsigned int len); + * *pkt is the pointer to the payload + * dport is used for tcp_seg_num + * action_and_state.s_addr is used for TCP state + * sport is used for tcp_ack_num (which is unused by the app) + * pkt_ length is the payload length. + */ +static void wget_handler(uchar *pkt, unsigned int tcp_seq_num, + struct in_addr action_and_state, + unsigned int tcp_ack_num, unsigned int len) +{ + enum TCP_STATE wget_tcp_state = tcp_get_tcp_state(); + u8 action = action_and_state.s_addr; + + net_set_timeout_handler(wget_timeout, wget_timeout_handler); + packets++; + + switch (wget_state) { + case WGET_CLOSED: + debug_cond(DEBUG_WGET, "wget: Handler: Error!, State wrong\n"); + break; + case WGET_CONNECTING: + debug_cond(DEBUG_WGET, + "wget: Connecting In len=%x, Seq=%x, Ack=%x\n", + len, tcp_seq_num, tcp_ack_num); + if (len == 0) { + if (wget_tcp_state == TCP_ESTABLISHED) { + debug_cond(DEBUG_WGET, + "wget: Cting, send, len=%x\n", len); + wget_send(action, tcp_seq_num, tcp_ack_num, len); + } else { + tcp_print_buffer(pkt, len, len, -1, 0); + wget_fail("wget: Handler Connected Fail\n", + tcp_seq_num, tcp_ack_num, action); + } + } + break; + case WGET_CONNECTED: + debug_cond(DEBUG_WGET, "wget: Connected seq=%x, len=%x\n", + tcp_seq_num, len); + if (len == 0) { + wget_fail("Image not found, no data returned\n", + tcp_seq_num, tcp_ack_num, action); + } else { + wget_connected(pkt, tcp_seq_num, action_and_state, + tcp_ack_num, len); + } + break; + case WGET_TRANSFERRING: + debug_cond(DEBUG_WGET, + "wget: Transferring, seq=%x, ack=%x,len=%x\n", + tcp_seq_num, tcp_ack_num, len); + + if (store_block(pkt, + tcp_seq_num - initial_data_seq_num, len) != 0) { + wget_fail("wget: store error\n", + tcp_seq_num, tcp_ack_num, action); + } else { + switch (wget_tcp_state) { + case TCP_FIN_WAIT_2: + wget_send(TCP_ACK, tcp_seq_num, tcp_ack_num, + len); + case TCP_SYN_SENT: + case TCP_CLOSING: + case TCP_FIN_WAIT_1: + case TCP_CLOSED: + net_set_state(NETLOOP_FAIL); + break; + case TCP_ESTABLISHED: + wget_send(TCP_ACK, tcp_seq_num, tcp_ack_num, + len); + wget_loop_state = NETLOOP_SUCCESS; + break; + case TCP_CLOSE_WAIT: /* End of transfer */ + wget_state = WGET_TRANSFERRED; + wget_send(action | TCP_ACK | TCP_FIN, + tcp_seq_num, tcp_ack_num, len); + break; + } + } + break; + case WGET_TRANSFERRED: + printf("Packets received %d, Transfer Successful\n", packets); + net_set_state(wget_loop_state); + break; + } +} + +void wget_start(void) +{ + debug_cond(DEBUG_WGET, "%s\n", __func__); + + image_url = strchr(net_boot_file_name, ':'); + if (!image_url) { + web_server_ip = string_to_ip(net_boot_file_name); + ++image_url; + } else { + web_server_ip = net_server_ip; + image_url = net_boot_file_name; + } + + debug_cond(DEBUG_WGET, + "wget: Transfer HTTP Server %pI4; our IP %pI4\n", + &web_server_ip, &net_ip); + + /* Check if we need to send across this subnet */ + if (net_gateway.s_addr && net_netmask.s_addr) { + struct in_addr our_net; + struct in_addr server_net; + + our_net.s_addr = net_ip.s_addr & net_netmask.s_addr; + server_net.s_addr = net_server_ip.s_addr & net_netmask.s_addr; + if (our_net.s_addr != server_net.s_addr) + debug_cond(DEBUG_WGET, + "wget: sending through gateway %pI4", + &net_gateway); + } + debug_cond(DEBUG_WGET, "URL '%s\n", image_url); + + if (net_boot_file_expected_size_in_blocks) { + debug_cond(DEBUG_WGET, "wget: Size is 0x%x Bytes = ", + net_boot_file_expected_size_in_blocks << 9); + print_size(net_boot_file_expected_size_in_blocks << 9, ""); + } + debug_cond(DEBUG_WGET, + "\nwget:Load address: 0x%lx\nLoading: *\b", load_addr); + + net_set_timeout_handler(wget_timeout, wget_timeout_handler); + tcp_set_tcp_handler(wget_handler); + + wget_timeout_count = 0; + wget_state = WGET_CLOSED; + + our_port = random_port(); + + /* zero out server ether in case the server ip has changed */ + memset(net_server_ethaddr, 0, 6); + + wget_send(TCP_SYN, 0, 0, 0); +}