Tom Rini | f739fcd | 2018-05-07 17:02:21 -0400 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0 |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 2 | /* |
| 3 | * Copied from Linux Monitor (LiMon) - Networking. |
| 4 | * |
| 5 | * Copyright 1994 - 2000 Neil Russell. |
| 6 | * (See License) |
| 7 | * Copyright 2000 Roland Borde |
| 8 | * Copyright 2000 Paolo Scaffardi |
| 9 | * Copyright 2000-2002 Wolfgang Denk, wd@denx.de |
| 10 | */ |
| 11 | |
| 12 | /* |
| 13 | * General Desription: |
| 14 | * |
| 15 | * The user interface supports commands for BOOTP, RARP, and TFTP. |
| 16 | * Also, we support ARP internally. Depending on available data, |
| 17 | * these interact as follows: |
| 18 | * |
| 19 | * BOOTP: |
| 20 | * |
| 21 | * Prerequisites: - own ethernet address |
| 22 | * We want: - own IP address |
| 23 | * - TFTP server IP address |
| 24 | * - name of bootfile |
| 25 | * Next step: ARP |
| 26 | * |
Ehsan Mohandesi | 6de98b6 | 2023-04-21 17:08:21 -0700 | [diff] [blame] | 27 | * LINKLOCAL: |
Joe Hershberger | d22c338 | 2012-05-23 08:00:12 +0000 | [diff] [blame] | 28 | * |
| 29 | * Prerequisites: - own ethernet address |
| 30 | * We want: - own IP address |
| 31 | * Next step: ARP |
| 32 | * |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 33 | * RARP: |
| 34 | * |
| 35 | * Prerequisites: - own ethernet address |
| 36 | * We want: - own IP address |
| 37 | * - TFTP server IP address |
| 38 | * Next step: ARP |
| 39 | * |
| 40 | * ARP: |
| 41 | * |
| 42 | * Prerequisites: - own ethernet address |
| 43 | * - own IP address |
| 44 | * - TFTP server IP address |
| 45 | * We want: - TFTP server ethernet address |
| 46 | * Next step: TFTP |
| 47 | * |
| 48 | * DHCP: |
| 49 | * |
Wolfgang Denk | b2f5080 | 2005-08-12 23:43:12 +0200 | [diff] [blame] | 50 | * Prerequisites: - own ethernet address |
| 51 | * We want: - IP, Netmask, ServerIP, Gateway IP |
| 52 | * - bootfilename, lease time |
| 53 | * Next step: - TFTP |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 54 | * |
| 55 | * TFTP: |
| 56 | * |
| 57 | * Prerequisites: - own ethernet address |
| 58 | * - own IP address |
| 59 | * - TFTP server IP address |
| 60 | * - TFTP server ethernet address |
| 61 | * - name of bootfile (if unknown, we use a default name |
| 62 | * derived from our own IP address) |
| 63 | * We want: - load the boot file |
| 64 | * Next step: none |
wdenk | cbd8a35 | 2004-02-24 02:00:03 +0000 | [diff] [blame] | 65 | * |
| 66 | * NFS: |
| 67 | * |
| 68 | * Prerequisites: - own ethernet address |
| 69 | * - own IP address |
| 70 | * - name of bootfile (if unknown, we use a default name |
| 71 | * derived from our own IP address) |
| 72 | * We want: - load the boot file |
| 73 | * Next step: none |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 74 | * |
Lothar Felten | d8970da | 2018-06-22 22:29:54 +0200 | [diff] [blame] | 75 | * |
| 76 | * WOL: |
| 77 | * |
| 78 | * Prerequisites: - own ethernet address |
| 79 | * We want: - magic packet or timeout |
| 80 | * Next step: none |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 81 | */ |
| 82 | |
| 83 | |
| 84 | #include <common.h> |
Simon Glass | 52f2423 | 2020-05-10 11:40:00 -0600 | [diff] [blame] | 85 | #include <bootstage.h> |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 86 | #include <command.h> |
Simon Glass | 24b852a | 2015-11-08 23:47:45 -0700 | [diff] [blame] | 87 | #include <console.h> |
Simon Glass | c7694dd | 2019-08-01 09:46:46 -0600 | [diff] [blame] | 88 | #include <env.h> |
Simon Glass | f3998fd | 2019-08-02 09:44:25 -0600 | [diff] [blame] | 89 | #include <env_internal.h> |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 90 | #include <errno.h> |
Simon Glass | 8e8ccfe | 2019-12-28 10:45:03 -0700 | [diff] [blame] | 91 | #include <image.h> |
Simon Glass | f7ae49f | 2020-05-10 11:40:05 -0600 | [diff] [blame] | 92 | #include <log.h> |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 93 | #include <net.h> |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 94 | #include <net6.h> |
| 95 | #include <ndisc.h> |
Dmitrii Merkurev | 443d319 | 2023-04-12 19:49:30 +0100 | [diff] [blame] | 96 | #include <net/fastboot_udp.h> |
| 97 | #include <net/fastboot_tcp.h> |
Lukasz Majewski | 3469695 | 2015-08-24 00:21:43 +0200 | [diff] [blame] | 98 | #include <net/tftp.h> |
Samuel Mendoza-Jonas | 09bd3d0 | 2022-08-08 21:46:03 +0930 | [diff] [blame] | 99 | #include <net/ncsi.h> |
Ramon Fried | 3eaac63 | 2019-07-18 21:43:30 +0300 | [diff] [blame] | 100 | #if defined(CONFIG_CMD_PCAP) |
| 101 | #include <net/pcap.h> |
| 102 | #endif |
Philippe Reynes | b43ea1b | 2020-09-18 14:13:00 +0200 | [diff] [blame] | 103 | #include <net/udp.h> |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 104 | #if defined(CONFIG_LED_STATUS) |
Joe Hershberger | 4545f4e | 2012-05-23 07:58:15 +0000 | [diff] [blame] | 105 | #include <miiphy.h> |
| 106 | #include <status_led.h> |
| 107 | #endif |
| 108 | #include <watchdog.h> |
| 109 | #include <linux/compiler.h> |
Simon Glass | f43b2df | 2023-01-17 10:47:27 -0700 | [diff] [blame] | 110 | #include <test/test.h> |
Sean Edmond | a024581 | 2023-04-11 10:48:46 -0700 | [diff] [blame] | 111 | #include <net/tcp.h> |
| 112 | #include <net/wget.h> |
Joe Hershberger | d280d3f | 2012-05-23 07:58:01 +0000 | [diff] [blame] | 113 | #include "arp.h" |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 114 | #include "bootp.h" |
Joe Hershberger | f575ae1 | 2012-05-23 07:57:59 +0000 | [diff] [blame] | 115 | #include "cdp.h" |
Robin Getz | 1a32bf4 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 116 | #if defined(CONFIG_CMD_DNS) |
| 117 | #include "dns.h" |
| 118 | #endif |
Joe Hershberger | d22c338 | 2012-05-23 08:00:12 +0000 | [diff] [blame] | 119 | #include "link_local.h" |
Joe Hershberger | 4545f4e | 2012-05-23 07:58:15 +0000 | [diff] [blame] | 120 | #include "nfs.h" |
Joe Hershberger | a36b12f | 2012-05-23 07:58:02 +0000 | [diff] [blame] | 121 | #include "ping.h" |
Joe Hershberger | 4545f4e | 2012-05-23 07:58:15 +0000 | [diff] [blame] | 122 | #include "rarp.h" |
Lothar Felten | d8970da | 2018-06-22 22:29:54 +0200 | [diff] [blame] | 123 | #if defined(CONFIG_CMD_WOL) |
| 124 | #include "wol.h" |
| 125 | #endif |
Sean Edmond | a024581 | 2023-04-11 10:48:46 -0700 | [diff] [blame] | 126 | #include "dhcpv6.h" |
Ehsan Mohandesi | 6de98b6 | 2023-04-21 17:08:21 -0700 | [diff] [blame] | 127 | #include "net_rand.h" |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 128 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 129 | /** BOOTP EXTENTIONS **/ |
| 130 | |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 131 | /* Our subnet mask (0=unknown) */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 132 | struct in_addr net_netmask; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 133 | /* Our gateways IP address */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 134 | struct in_addr net_gateway; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 135 | /* Our DNS IP address */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 136 | struct in_addr net_dns_server; |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 137 | #if defined(CONFIG_BOOTP_DNS2) |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 138 | /* Our 2nd DNS IP address */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 139 | struct in_addr net_dns_server2; |
stroese | fe389a8 | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 140 | #endif |
Sean Edmond | a024581 | 2023-04-11 10:48:46 -0700 | [diff] [blame] | 141 | /* Indicates whether the pxe path prefix / config file was specified in dhcp option */ |
| 142 | char *pxelinux_configfile; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 143 | |
| 144 | /** END OF BOOTP EXTENTIONS **/ |
| 145 | |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 146 | /* Our ethernet address */ |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 147 | u8 net_ethaddr[6]; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 148 | /* Boot server enet address */ |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 149 | u8 net_server_ethaddr[6]; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 150 | /* Our IP addr (0 = unknown) */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 151 | struct in_addr net_ip; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 152 | /* Server IP addr (0 = unknown) */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 153 | struct in_addr net_server_ip; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 154 | /* Current receive packet */ |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 155 | uchar *net_rx_packet; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 156 | /* Current rx packet length */ |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 157 | int net_rx_packet_len; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 158 | /* IP packet ID */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 159 | static unsigned net_ip_id; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 160 | /* Ethernet bcast address */ |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 161 | const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; |
| 162 | const u8 net_null_ethaddr[6]; |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 163 | #if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 164 | void (*push_packet)(void *, int len) = 0; |
Rafal Jaworowski | f85b607 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 165 | #endif |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 166 | /* Network loop state */ |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 167 | enum net_loop_state net_state; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 168 | /* Tried all network devices */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 169 | int net_restart_wrap; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 170 | /* Network loop restarted */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 171 | static int net_restarted; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 172 | /* At least one device configured */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 173 | static int net_dev_exists; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 174 | |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 175 | /* XXX in both little & big endian machines 0xFFFF == ntohs(-1) */ |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 176 | /* default is without VLAN */ |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 177 | ushort net_our_vlan = 0xFFFF; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 178 | /* ditto */ |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 179 | ushort net_native_vlan = 0xFFFF; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 180 | |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 181 | /* Boot File name */ |
Jacob Stiffler | 11a69ff | 2015-09-30 10:12:05 -0400 | [diff] [blame] | 182 | char net_boot_file_name[1024]; |
Alexander Graf | 449312c | 2018-06-15 10:29:27 +0200 | [diff] [blame] | 183 | /* Indicates whether the file name was specified on the command line */ |
| 184 | bool net_boot_file_name_explicit; |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 185 | /* The actual transferred size of the bootfile (in bytes) */ |
| 186 | u32 net_boot_file_size; |
| 187 | /* Boot file size in blocks as reported by the DHCP server */ |
| 188 | u32 net_boot_file_expected_size_in_blocks; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 189 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 190 | static uchar net_pkt_buf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 191 | /* Receive packets */ |
| 192 | uchar *net_rx_packets[PKTBUFSRX]; |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 193 | /* Current UDP RX packet handler */ |
| 194 | static rxhand_f *udp_packet_handler; |
| 195 | /* Current ARP RX packet handler */ |
| 196 | static rxhand_f *arp_packet_handler; |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 197 | #ifdef CONFIG_CMD_TFTPPUT |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 198 | /* Current ICMP rx handler */ |
| 199 | static rxhand_icmp_f *packet_icmp_handler; |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 200 | #endif |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 201 | /* Current timeout handler */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 202 | static thand_f *time_handler; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 203 | /* Time base value */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 204 | static ulong time_start; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 205 | /* Current timeout value */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 206 | static ulong time_delta; |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 207 | /* THE transmit packet */ |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 208 | uchar *net_tx_packet; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 209 | |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 210 | static int net_check_prereq(enum proto_t protocol); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 211 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 212 | static int net_try_count; |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 213 | |
Jim Lin | b63056d | 2013-08-13 19:03:05 +0800 | [diff] [blame] | 214 | int __maybe_unused net_busy_flag; |
| 215 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 216 | /**********************************************************************/ |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 217 | |
Joe Hershberger | fd30563 | 2015-05-20 14:27:23 -0500 | [diff] [blame] | 218 | static int on_ipaddr(const char *name, const char *value, enum env_op op, |
| 219 | int flags) |
| 220 | { |
| 221 | if (flags & H_PROGRAMMATIC) |
| 222 | return 0; |
| 223 | |
| 224 | net_ip = string_to_ip(value); |
| 225 | |
| 226 | return 0; |
| 227 | } |
| 228 | U_BOOT_ENV_CALLBACK(ipaddr, on_ipaddr); |
| 229 | |
| 230 | static int on_gatewayip(const char *name, const char *value, enum env_op op, |
| 231 | int flags) |
| 232 | { |
| 233 | if (flags & H_PROGRAMMATIC) |
| 234 | return 0; |
| 235 | |
| 236 | net_gateway = string_to_ip(value); |
| 237 | |
| 238 | return 0; |
| 239 | } |
| 240 | U_BOOT_ENV_CALLBACK(gatewayip, on_gatewayip); |
| 241 | |
| 242 | static int on_netmask(const char *name, const char *value, enum env_op op, |
| 243 | int flags) |
| 244 | { |
| 245 | if (flags & H_PROGRAMMATIC) |
| 246 | return 0; |
| 247 | |
| 248 | net_netmask = string_to_ip(value); |
| 249 | |
| 250 | return 0; |
| 251 | } |
| 252 | U_BOOT_ENV_CALLBACK(netmask, on_netmask); |
| 253 | |
| 254 | static int on_serverip(const char *name, const char *value, enum env_op op, |
| 255 | int flags) |
| 256 | { |
| 257 | if (flags & H_PROGRAMMATIC) |
| 258 | return 0; |
| 259 | |
| 260 | net_server_ip = string_to_ip(value); |
| 261 | |
| 262 | return 0; |
| 263 | } |
| 264 | U_BOOT_ENV_CALLBACK(serverip, on_serverip); |
| 265 | |
| 266 | static int on_nvlan(const char *name, const char *value, enum env_op op, |
| 267 | int flags) |
| 268 | { |
| 269 | if (flags & H_PROGRAMMATIC) |
| 270 | return 0; |
| 271 | |
| 272 | net_native_vlan = string_to_vlan(value); |
| 273 | |
| 274 | return 0; |
| 275 | } |
| 276 | U_BOOT_ENV_CALLBACK(nvlan, on_nvlan); |
| 277 | |
| 278 | static int on_vlan(const char *name, const char *value, enum env_op op, |
| 279 | int flags) |
| 280 | { |
| 281 | if (flags & H_PROGRAMMATIC) |
| 282 | return 0; |
| 283 | |
| 284 | net_our_vlan = string_to_vlan(value); |
| 285 | |
| 286 | return 0; |
| 287 | } |
| 288 | U_BOOT_ENV_CALLBACK(vlan, on_vlan); |
| 289 | |
| 290 | #if defined(CONFIG_CMD_DNS) |
| 291 | static int on_dnsip(const char *name, const char *value, enum env_op op, |
| 292 | int flags) |
| 293 | { |
| 294 | if (flags & H_PROGRAMMATIC) |
| 295 | return 0; |
| 296 | |
| 297 | net_dns_server = string_to_ip(value); |
| 298 | |
| 299 | return 0; |
| 300 | } |
| 301 | U_BOOT_ENV_CALLBACK(dnsip, on_dnsip); |
| 302 | #endif |
| 303 | |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 304 | /* |
| 305 | * Check if autoload is enabled. If so, use either NFS or TFTP to download |
| 306 | * the boot file. |
| 307 | */ |
| 308 | void net_auto_load(void) |
| 309 | { |
Tom Rini | a6ab4b5 | 2019-12-05 19:35:07 -0500 | [diff] [blame] | 310 | #if defined(CONFIG_CMD_NFS) && !defined(CONFIG_SPL_BUILD) |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 311 | const char *s = env_get("autoload"); |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 312 | |
Joe Hershberger | ec8a252 | 2012-12-11 22:16:22 -0600 | [diff] [blame] | 313 | if (s != NULL && strcmp(s, "NFS") == 0) { |
Joe Hershberger | 3855cad | 2018-07-03 19:36:40 -0500 | [diff] [blame] | 314 | if (net_check_prereq(NFS)) { |
| 315 | /* We aren't expecting to get a serverip, so just accept the assigned IP */ |
Simon Glass | 4340753 | 2021-12-18 11:27:52 -0700 | [diff] [blame] | 316 | if (IS_ENABLED(CONFIG_BOOTP_SERVERIP)) { |
| 317 | net_set_state(NETLOOP_SUCCESS); |
| 318 | } else { |
| 319 | printf("Cannot autoload with NFS\n"); |
| 320 | net_set_state(NETLOOP_FAIL); |
| 321 | } |
Joe Hershberger | 3855cad | 2018-07-03 19:36:40 -0500 | [diff] [blame] | 322 | return; |
| 323 | } |
Joe Hershberger | ec8a252 | 2012-12-11 22:16:22 -0600 | [diff] [blame] | 324 | /* |
| 325 | * Use NFS to load the bootfile. |
| 326 | */ |
Joe Hershberger | 68c76a3 | 2015-04-08 01:41:10 -0500 | [diff] [blame] | 327 | nfs_start(); |
Joe Hershberger | ec8a252 | 2012-12-11 22:16:22 -0600 | [diff] [blame] | 328 | return; |
| 329 | } |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 330 | #endif |
Simon Glass | bfebc8c | 2017-08-03 12:22:13 -0600 | [diff] [blame] | 331 | if (env_get_yesno("autoload") == 0) { |
Joe Hershberger | ec8a252 | 2012-12-11 22:16:22 -0600 | [diff] [blame] | 332 | /* |
| 333 | * Just use BOOTP/RARP to configure system; |
| 334 | * Do not use TFTP to load the bootfile. |
| 335 | */ |
| 336 | net_set_state(NETLOOP_SUCCESS); |
| 337 | return; |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 338 | } |
Joe Hershberger | 3855cad | 2018-07-03 19:36:40 -0500 | [diff] [blame] | 339 | if (net_check_prereq(TFTPGET)) { |
| 340 | /* We aren't expecting to get a serverip, so just accept the assigned IP */ |
Simon Glass | 4340753 | 2021-12-18 11:27:52 -0700 | [diff] [blame] | 341 | if (IS_ENABLED(CONFIG_BOOTP_SERVERIP)) { |
| 342 | net_set_state(NETLOOP_SUCCESS); |
| 343 | } else { |
| 344 | printf("Cannot autoload with TFTPGET\n"); |
| 345 | net_set_state(NETLOOP_FAIL); |
| 346 | } |
Joe Hershberger | 3855cad | 2018-07-03 19:36:40 -0500 | [diff] [blame] | 347 | return; |
| 348 | } |
Joe Hershberger | 8885c5f | 2015-04-08 01:41:07 -0500 | [diff] [blame] | 349 | tftp_start(TFTPGET); |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 350 | } |
| 351 | |
Sean Anderson | c3f0278 | 2020-09-12 17:45:43 -0400 | [diff] [blame] | 352 | static int net_init_loop(void) |
Heiko Schocher | 2f70c49 | 2009-02-10 09:38:52 +0100 | [diff] [blame] | 353 | { |
Ehsan Mohandesi | 6de98b6 | 2023-04-21 17:08:21 -0700 | [diff] [blame] | 354 | static bool first_call = true; |
| 355 | |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 356 | if (eth_get_dev()) { |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 357 | memcpy(net_ethaddr, eth_get_ethaddr(), 6); |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 358 | |
| 359 | if (IS_ENABLED(CONFIG_IPV6)) { |
| 360 | ip6_make_lladdr(&net_link_local_ip6, net_ethaddr); |
| 361 | if (!memcmp(&net_ip6, &net_null_addr_ip6, |
| 362 | sizeof(struct in6_addr))) |
| 363 | memcpy(&net_ip6, &net_link_local_ip6, |
| 364 | sizeof(struct in6_addr)); |
| 365 | } |
| 366 | } |
Sean Anderson | c3f0278 | 2020-09-12 17:45:43 -0400 | [diff] [blame] | 367 | else |
| 368 | /* |
| 369 | * Not ideal, but there's no way to get the actual error, and I |
| 370 | * don't feel like fixing all the users of eth_get_dev to deal |
| 371 | * with errors. |
| 372 | */ |
| 373 | return -ENONET; |
Michael Zaidman | 3c172c4 | 2009-04-04 01:43:00 +0300 | [diff] [blame] | 374 | |
Ehsan Mohandesi | 6de98b6 | 2023-04-21 17:08:21 -0700 | [diff] [blame] | 375 | if (IS_ENABLED(CONFIG_IPV6_ROUTER_DISCOVERY)) |
| 376 | if (first_call && use_ip6) { |
| 377 | first_call = false; |
| 378 | srand_mac(); /* This is for rand used in ip6_send_rs. */ |
| 379 | net_loop(RS); |
| 380 | } |
Sean Anderson | c3f0278 | 2020-09-12 17:45:43 -0400 | [diff] [blame] | 381 | return 0; |
Heiko Schocher | 2f70c49 | 2009-02-10 09:38:52 +0100 | [diff] [blame] | 382 | } |
| 383 | |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 384 | static void net_clear_handlers(void) |
| 385 | { |
| 386 | net_set_udp_handler(NULL); |
| 387 | net_set_arp_handler(NULL); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 388 | net_set_timeout_handler(0, NULL); |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 389 | } |
| 390 | |
| 391 | static void net_cleanup_loop(void) |
| 392 | { |
| 393 | net_clear_handlers(); |
| 394 | } |
| 395 | |
Sean Anderson | c3f0278 | 2020-09-12 17:45:43 -0400 | [diff] [blame] | 396 | int net_init(void) |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 397 | { |
| 398 | static int first_call = 1; |
| 399 | |
| 400 | if (first_call) { |
| 401 | /* |
| 402 | * Setup packet buffers, aligned correctly. |
| 403 | */ |
| 404 | int i; |
| 405 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 406 | net_tx_packet = &net_pkt_buf[0] + (PKTALIGN - 1); |
| 407 | net_tx_packet -= (ulong)net_tx_packet % PKTALIGN; |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 408 | for (i = 0; i < PKTBUFSRX; i++) { |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 409 | net_rx_packets[i] = net_tx_packet + |
| 410 | (i + 1) * PKTSIZE_ALIGN; |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 411 | } |
Joe Hershberger | 85d25e0 | 2015-04-08 01:41:08 -0500 | [diff] [blame] | 412 | arp_init(); |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 413 | ndisc_init(); |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 414 | net_clear_handlers(); |
| 415 | |
| 416 | /* Only need to setup buffer pointers once. */ |
| 417 | first_call = 0; |
Ying-Chun Liu (PaulLiu) | a3bf193 | 2022-11-08 14:17:28 +0800 | [diff] [blame] | 418 | if (IS_ENABLED(CONFIG_PROT_TCP)) |
| 419 | tcp_set_tcp_state(TCP_CLOSED); |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 420 | } |
| 421 | |
Sean Anderson | c3f0278 | 2020-09-12 17:45:43 -0400 | [diff] [blame] | 422 | return net_init_loop(); |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 423 | } |
| 424 | |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 425 | /**********************************************************************/ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 426 | /* |
| 427 | * Main network processing loop. |
| 428 | */ |
| 429 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 430 | int net_loop(enum proto_t protocol) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 431 | { |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 432 | int ret = -EINVAL; |
Leonid Iziumtsev | 60177b2 | 2018-05-08 15:55:50 +0200 | [diff] [blame] | 433 | enum net_loop_state prev_net_state = net_state; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 434 | |
Marek Szyprowski | def7a5c | 2020-06-15 11:15:57 +0200 | [diff] [blame] | 435 | #if defined(CONFIG_CMD_PING) |
| 436 | if (protocol != PING) |
| 437 | net_ping_ip.s_addr = 0; |
| 438 | #endif |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 439 | net_restarted = 0; |
| 440 | net_dev_exists = 0; |
| 441 | net_try_count = 1; |
| 442 | debug_cond(DEBUG_INT_STATE, "--- net_loop Entry\n"); |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 443 | |
Samuel Mendoza-Jonas | 09bd3d0 | 2022-08-08 21:46:03 +0930 | [diff] [blame] | 444 | #ifdef CONFIG_PHY_NCSI |
| 445 | if (phy_interface_is_ncsi() && protocol != NCSI && !ncsi_active()) { |
| 446 | printf("%s: configuring NCSI first\n", __func__); |
| 447 | if (net_loop(NCSI) < 0) |
| 448 | return ret; |
| 449 | eth_init_state_only(); |
| 450 | goto restart; |
| 451 | } |
| 452 | #endif |
| 453 | |
Simon Glass | 573f14f | 2011-12-10 11:08:06 +0000 | [diff] [blame] | 454 | bootstage_mark_name(BOOTSTAGE_ID_ETH_START, "eth_start"); |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 455 | net_init(); |
Yang Liu | d9506cd | 2020-12-21 14:44:39 +1100 | [diff] [blame] | 456 | if (eth_is_on_demand_init()) { |
wdenk | b1bf6f2 | 2005-04-03 14:52:59 +0000 | [diff] [blame] | 457 | eth_halt(); |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 458 | eth_set_current(); |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 459 | ret = eth_init(); |
| 460 | if (ret < 0) { |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 461 | eth_halt(); |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 462 | return ret; |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 463 | } |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 464 | } else { |
Joe Hershberger | d2eaec6 | 2015-03-22 17:09:06 -0500 | [diff] [blame] | 465 | eth_init_state_only(); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 466 | } |
Samuel Mendoza-Jonas | 4b290d4 | 2022-08-08 21:46:04 +0930 | [diff] [blame] | 467 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 468 | restart: |
Jim Lin | b63056d | 2013-08-13 19:03:05 +0800 | [diff] [blame] | 469 | #ifdef CONFIG_USB_KEYBOARD |
| 470 | net_busy_flag = 0; |
| 471 | #endif |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 472 | net_set_state(NETLOOP_CONTINUE); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 473 | |
| 474 | /* |
| 475 | * Start the ball rolling with the given start function. From |
| 476 | * here on, this code is a state machine driven by received |
| 477 | * packets and timer events. |
| 478 | */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 479 | debug_cond(DEBUG_INT_STATE, "--- net_loop Init\n"); |
| 480 | net_init_loop(); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 481 | |
Simon Glass | f43b2df | 2023-01-17 10:47:27 -0700 | [diff] [blame] | 482 | if (!test_eth_enabled()) |
| 483 | return 0; |
| 484 | |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 485 | switch (net_check_prereq(protocol)) { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 486 | case 1: |
| 487 | /* network not configured */ |
wdenk | b1bf6f2 | 2005-04-03 14:52:59 +0000 | [diff] [blame] | 488 | eth_halt(); |
Leonid Iziumtsev | 60177b2 | 2018-05-08 15:55:50 +0200 | [diff] [blame] | 489 | net_set_state(prev_net_state); |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 490 | return -ENODEV; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 491 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 492 | case 2: |
| 493 | /* network device not configured */ |
| 494 | break; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 495 | |
| 496 | case 0: |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 497 | net_dev_exists = 1; |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 498 | net_boot_file_size = 0; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 499 | switch (protocol) { |
Krebs, Olaf | 808f13d | 2020-03-09 14:27:55 +0000 | [diff] [blame] | 500 | #ifdef CONFIG_CMD_TFTPBOOT |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 501 | case TFTPGET: |
Simon Glass | 1fb7cd4 | 2011-10-24 18:00:07 +0000 | [diff] [blame] | 502 | #ifdef CONFIG_CMD_TFTPPUT |
| 503 | case TFTPPUT: |
| 504 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 505 | /* always use ARP to get server ethernet address */ |
Joe Hershberger | 8885c5f | 2015-04-08 01:41:07 -0500 | [diff] [blame] | 506 | tftp_start(protocol); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 507 | break; |
Krebs, Olaf | 808f13d | 2020-03-09 14:27:55 +0000 | [diff] [blame] | 508 | #endif |
Luca Ceresoli | 7a83af0 | 2011-05-17 00:03:40 +0000 | [diff] [blame] | 509 | #ifdef CONFIG_CMD_TFTPSRV |
| 510 | case TFTPSRV: |
Joe Hershberger | 8885c5f | 2015-04-08 01:41:07 -0500 | [diff] [blame] | 511 | tftp_start_server(); |
Luca Ceresoli | 7a83af0 | 2011-05-17 00:03:40 +0000 | [diff] [blame] | 512 | break; |
| 513 | #endif |
Sean Anderson | 7d04986 | 2023-10-14 16:47:51 -0400 | [diff] [blame] | 514 | #if CONFIG_IS_ENABLED(UDP_FUNCTION_FASTBOOT) |
Dmitrii Merkurev | 443d319 | 2023-04-12 19:49:30 +0100 | [diff] [blame] | 515 | case FASTBOOT_UDP: |
| 516 | fastboot_udp_start_server(); |
| 517 | break; |
| 518 | #endif |
Sean Anderson | 7d04986 | 2023-10-14 16:47:51 -0400 | [diff] [blame] | 519 | #if CONFIG_IS_ENABLED(TCP_FUNCTION_FASTBOOT) |
Dmitrii Merkurev | 443d319 | 2023-04-12 19:49:30 +0100 | [diff] [blame] | 520 | case FASTBOOT_TCP: |
| 521 | fastboot_tcp_start_server(); |
Alex Kiernan | f73a7df | 2018-05-29 15:30:53 +0000 | [diff] [blame] | 522 | break; |
| 523 | #endif |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 524 | #if defined(CONFIG_CMD_DHCP) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 525 | case DHCP: |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 526 | bootp_reset(); |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 527 | net_ip.s_addr = 0; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 528 | dhcp_request(); /* Basically same as BOOTP */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 529 | break; |
Jon Loeliger | 610f2e9 | 2007-07-10 11:05:02 -0500 | [diff] [blame] | 530 | #endif |
Sean Edmond | a024581 | 2023-04-11 10:48:46 -0700 | [diff] [blame] | 531 | case DHCP6: |
| 532 | if (IS_ENABLED(CONFIG_CMD_DHCP6)) |
| 533 | dhcp6_start(); |
| 534 | break; |
Krebs, Olaf | 808f13d | 2020-03-09 14:27:55 +0000 | [diff] [blame] | 535 | #if defined(CONFIG_CMD_BOOTP) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 536 | case BOOTP: |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 537 | bootp_reset(); |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 538 | net_ip.s_addr = 0; |
Joe Hershberger | 7044c6b | 2015-04-08 01:41:09 -0500 | [diff] [blame] | 539 | bootp_request(); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 540 | break; |
Krebs, Olaf | 808f13d | 2020-03-09 14:27:55 +0000 | [diff] [blame] | 541 | #endif |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 542 | #if defined(CONFIG_CMD_RARP) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 543 | case RARP: |
Joe Hershberger | 698d78e | 2015-04-08 01:41:11 -0500 | [diff] [blame] | 544 | rarp_try = 0; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 545 | net_ip.s_addr = 0; |
Joe Hershberger | 698d78e | 2015-04-08 01:41:11 -0500 | [diff] [blame] | 546 | rarp_request(); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 547 | break; |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 548 | #endif |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 549 | #if defined(CONFIG_CMD_PING) |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 550 | case PING: |
Joe Hershberger | a36b12f | 2012-05-23 07:58:02 +0000 | [diff] [blame] | 551 | ping_start(); |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 552 | break; |
| 553 | #endif |
Viacheslav Mitrofanov | eeb0a2c | 2022-12-02 12:18:08 +0300 | [diff] [blame] | 554 | #if defined(CONFIG_CMD_PING6) |
| 555 | case PING6: |
| 556 | ping6_start(); |
| 557 | break; |
| 558 | #endif |
Tom Rini | a6ab4b5 | 2019-12-05 19:35:07 -0500 | [diff] [blame] | 559 | #if defined(CONFIG_CMD_NFS) && !defined(CONFIG_SPL_BUILD) |
wdenk | cbd8a35 | 2004-02-24 02:00:03 +0000 | [diff] [blame] | 560 | case NFS: |
Joe Hershberger | 68c76a3 | 2015-04-08 01:41:10 -0500 | [diff] [blame] | 561 | nfs_start(); |
wdenk | cbd8a35 | 2004-02-24 02:00:03 +0000 | [diff] [blame] | 562 | break; |
| 563 | #endif |
Ying-Chun Liu (PaulLiu) | cfbae48 | 2022-11-08 14:17:29 +0800 | [diff] [blame] | 564 | #if defined(CONFIG_CMD_WGET) |
| 565 | case WGET: |
| 566 | wget_start(); |
| 567 | break; |
| 568 | #endif |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 569 | #if defined(CONFIG_CMD_CDP) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 570 | case CDP: |
Joe Hershberger | 6aede5b | 2015-04-08 01:41:14 -0500 | [diff] [blame] | 571 | cdp_start(); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 572 | break; |
| 573 | #endif |
Holger Dengler | 66c89ee | 2017-07-20 10:10:55 +0200 | [diff] [blame] | 574 | #if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) |
wdenk | 68ceb29 | 2004-08-02 21:11:11 +0000 | [diff] [blame] | 575 | case NETCONS: |
Joe Hershberger | 6a38a5f | 2015-04-08 01:41:16 -0500 | [diff] [blame] | 576 | nc_start(); |
wdenk | 68ceb29 | 2004-08-02 21:11:11 +0000 | [diff] [blame] | 577 | break; |
| 578 | #endif |
Robin Getz | 1a32bf4 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 579 | #if defined(CONFIG_CMD_DNS) |
| 580 | case DNS: |
Joe Hershberger | 786eac5 | 2015-04-08 01:41:15 -0500 | [diff] [blame] | 581 | dns_start(); |
Robin Getz | 1a32bf4 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 582 | break; |
| 583 | #endif |
Joe Hershberger | d22c338 | 2012-05-23 08:00:12 +0000 | [diff] [blame] | 584 | #if defined(CONFIG_CMD_LINK_LOCAL) |
| 585 | case LINKLOCAL: |
| 586 | link_local_start(); |
| 587 | break; |
| 588 | #endif |
Lothar Felten | d8970da | 2018-06-22 22:29:54 +0200 | [diff] [blame] | 589 | #if defined(CONFIG_CMD_WOL) |
| 590 | case WOL: |
| 591 | wol_start(); |
| 592 | break; |
| 593 | #endif |
Samuel Mendoza-Jonas | 09bd3d0 | 2022-08-08 21:46:03 +0930 | [diff] [blame] | 594 | #if defined(CONFIG_PHY_NCSI) |
| 595 | case NCSI: |
| 596 | ncsi_probe_packages(); |
| 597 | break; |
| 598 | #endif |
Ehsan Mohandesi | 6de98b6 | 2023-04-21 17:08:21 -0700 | [diff] [blame] | 599 | case RS: |
| 600 | if (IS_ENABLED(CONFIG_IPV6_ROUTER_DISCOVERY)) |
| 601 | ip6_send_rs(); |
| 602 | break; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 603 | default: |
| 604 | break; |
| 605 | } |
| 606 | |
Philippe Reynes | b43ea1b | 2020-09-18 14:13:00 +0200 | [diff] [blame] | 607 | if (IS_ENABLED(CONFIG_PROT_UDP) && protocol == UDP) |
| 608 | udp_start(); |
| 609 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 610 | break; |
| 611 | } |
| 612 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 613 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 614 | #if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \ |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 615 | defined(CONFIG_LED_STATUS) && \ |
| 616 | defined(CONFIG_LED_STATUS_RED) |
wdenk | fc3e216 | 2003-10-08 22:33:00 +0000 | [diff] [blame] | 617 | /* |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 618 | * Echo the inverted link state to the fault LED. |
wdenk | fc3e216 | 2003-10-08 22:33:00 +0000 | [diff] [blame] | 619 | */ |
Luca Ceresoli | d3c65b0 | 2011-05-04 02:40:43 +0000 | [diff] [blame] | 620 | if (miiphy_link(eth_get_dev()->name, CONFIG_SYS_FAULT_MII_ADDR)) |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 621 | status_led_set(CONFIG_LED_STATUS_RED, CONFIG_LED_STATUS_OFF); |
Luca Ceresoli | d3c65b0 | 2011-05-04 02:40:43 +0000 | [diff] [blame] | 622 | else |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 623 | status_led_set(CONFIG_LED_STATUS_RED, CONFIG_LED_STATUS_ON); |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 624 | #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
wdenk | fc3e216 | 2003-10-08 22:33:00 +0000 | [diff] [blame] | 625 | #endif /* CONFIG_MII, ... */ |
Jim Lin | b63056d | 2013-08-13 19:03:05 +0800 | [diff] [blame] | 626 | #ifdef CONFIG_USB_KEYBOARD |
| 627 | net_busy_flag = 1; |
| 628 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 629 | |
| 630 | /* |
| 631 | * Main packet reception loop. Loop receiving packets until |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 632 | * someone sets `net_state' to a state that terminates. |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 633 | */ |
| 634 | for (;;) { |
Stefan Roese | 29caf93 | 2022-09-02 14:10:46 +0200 | [diff] [blame] | 635 | schedule(); |
Joe Hershberger | c5a7533 | 2015-12-21 16:31:35 -0600 | [diff] [blame] | 636 | if (arp_timeout_check() > 0) |
| 637 | time_start = get_timer(0); |
| 638 | |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 639 | if (IS_ENABLED(CONFIG_IPV6)) { |
| 640 | if (use_ip6 && (ndisc_timeout_check() > 0)) |
| 641 | time_start = get_timer(0); |
| 642 | } |
| 643 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 644 | /* |
| 645 | * Check the ethernet for a new packet. The ethernet |
| 646 | * receive routine will process it. |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 647 | * Most drivers return the most recent packet size, but not |
| 648 | * errors that may have happened. |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 649 | */ |
Guennadi Liakhovetski | 40cb90e | 2008-04-03 17:04:19 +0200 | [diff] [blame] | 650 | eth_rx(); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 651 | |
| 652 | /* |
| 653 | * Abort if ctrl-c was pressed. |
| 654 | */ |
| 655 | if (ctrlc()) { |
Joe Hershberger | e94070c | 2012-05-23 07:59:24 +0000 | [diff] [blame] | 656 | /* cancel any ARP that may not have completed */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 657 | net_arp_wait_packet_ip.s_addr = 0; |
Joe Hershberger | e94070c | 2012-05-23 07:59:24 +0000 | [diff] [blame] | 658 | |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 659 | net_cleanup_loop(); |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 660 | eth_halt(); |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 661 | /* Invalidate the last protocol */ |
| 662 | eth_set_last_protocol(BOOTP); |
| 663 | |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 664 | puts("\nAbort\n"); |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 665 | /* include a debug print as well incase the debug |
| 666 | messages are directed to stderr */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 667 | debug_cond(DEBUG_INT_STATE, "--- net_loop Abort!\n"); |
Michal Simek | 19a4fba | 2015-08-21 08:49:48 +0200 | [diff] [blame] | 668 | ret = -EINTR; |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 669 | goto done; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 670 | } |
| 671 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 672 | /* |
| 673 | * Check for a timeout, and run the timeout handler |
| 674 | * if we have one. |
| 675 | */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 676 | if (time_handler && |
| 677 | ((get_timer(0) - time_start) > time_delta)) { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 678 | thand_f *x; |
| 679 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 680 | #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 681 | #if defined(CONFIG_SYS_FAULT_ECHO_LINK_DOWN) && \ |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 682 | defined(CONFIG_LED_STATUS) && \ |
| 683 | defined(CONFIG_LED_STATUS_RED) |
wdenk | fc3e216 | 2003-10-08 22:33:00 +0000 | [diff] [blame] | 684 | /* |
wdenk | 42d1f03 | 2003-10-15 23:53:47 +0000 | [diff] [blame] | 685 | * Echo the inverted link state to the fault LED. |
wdenk | fc3e216 | 2003-10-08 22:33:00 +0000 | [diff] [blame] | 686 | */ |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 687 | if (miiphy_link(eth_get_dev()->name, |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 688 | CONFIG_SYS_FAULT_MII_ADDR)) |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 689 | status_led_set(CONFIG_LED_STATUS_RED, |
| 690 | CONFIG_LED_STATUS_OFF); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 691 | else |
Uri Mashiach | 2d8d190 | 2017-01-19 10:51:45 +0200 | [diff] [blame] | 692 | status_led_set(CONFIG_LED_STATUS_RED, |
| 693 | CONFIG_LED_STATUS_ON); |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 694 | #endif /* CONFIG_SYS_FAULT_ECHO_LINK_DOWN, ... */ |
wdenk | fc3e216 | 2003-10-08 22:33:00 +0000 | [diff] [blame] | 695 | #endif /* CONFIG_MII, ... */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 696 | debug_cond(DEBUG_INT_STATE, "--- net_loop timeout\n"); |
| 697 | x = time_handler; |
| 698 | time_handler = (thand_f *)0; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 699 | (*x)(); |
Ehsan Mohandesi | 6de98b6 | 2023-04-21 17:08:21 -0700 | [diff] [blame] | 700 | } else if (IS_ENABLED(CONFIG_IPV6_ROUTER_DISCOVERY)) |
| 701 | if (time_handler && protocol == RS) |
| 702 | if (!ip6_is_unspecified_addr(&net_gateway6) && |
| 703 | net_prefix_length != 0) { |
| 704 | net_set_state(NETLOOP_SUCCESS); |
| 705 | net_set_timeout_handler(0, NULL); |
| 706 | } |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 707 | |
Joe Hershberger | 5c42133 | 2015-03-22 17:09:07 -0500 | [diff] [blame] | 708 | if (net_state == NETLOOP_FAIL) |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 709 | ret = net_start_again(); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 710 | |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 711 | switch (net_state) { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 712 | case NETLOOP_RESTART: |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 713 | net_restarted = 1; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 714 | goto restart; |
| 715 | |
| 716 | case NETLOOP_SUCCESS: |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 717 | net_cleanup_loop(); |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 718 | if (net_boot_file_size > 0) { |
Siddharth Vadapalli | 8f911a7 | 2023-08-14 10:23:47 +0530 | [diff] [blame] | 719 | printf("Bytes transferred = %u (%x hex)\n", |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 720 | net_boot_file_size, net_boot_file_size); |
Simon Glass | 018f530 | 2017-08-03 12:22:10 -0600 | [diff] [blame] | 721 | env_set_hex("filesize", net_boot_file_size); |
Simon Glass | bb872dd | 2019-12-28 10:45:02 -0700 | [diff] [blame] | 722 | env_set_hex("fileaddr", image_load_addr); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 723 | } |
Samuel Mendoza-Jonas | 09bd3d0 | 2022-08-08 21:46:03 +0930 | [diff] [blame] | 724 | if (protocol != NETCONS && protocol != NCSI) |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 725 | eth_halt(); |
| 726 | else |
| 727 | eth_halt_state_only(); |
| 728 | |
| 729 | eth_set_last_protocol(protocol); |
| 730 | |
Joe Hershberger | 1411157 | 2015-04-08 01:41:02 -0500 | [diff] [blame] | 731 | ret = net_boot_file_size; |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 732 | debug_cond(DEBUG_INT_STATE, "--- net_loop Success!\n"); |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 733 | goto done; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 734 | |
| 735 | case NETLOOP_FAIL: |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 736 | net_cleanup_loop(); |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 737 | /* Invalidate the last protocol */ |
| 738 | eth_set_last_protocol(BOOTP); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 739 | debug_cond(DEBUG_INT_STATE, "--- net_loop Fail!\n"); |
Thomas RIENOESSL | a735e6e | 2018-11-21 15:56:07 +0100 | [diff] [blame] | 740 | ret = -ENONET; |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 741 | goto done; |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 742 | |
| 743 | case NETLOOP_CONTINUE: |
| 744 | continue; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 745 | } |
| 746 | } |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 747 | |
| 748 | done: |
Jim Lin | b63056d | 2013-08-13 19:03:05 +0800 | [diff] [blame] | 749 | #ifdef CONFIG_USB_KEYBOARD |
| 750 | net_busy_flag = 0; |
| 751 | #endif |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 752 | #ifdef CONFIG_CMD_TFTPPUT |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 753 | /* Clear out the handlers */ |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 754 | net_set_udp_handler(NULL); |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 755 | net_set_icmp_handler(NULL); |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 756 | #endif |
Leonid Iziumtsev | 60177b2 | 2018-05-08 15:55:50 +0200 | [diff] [blame] | 757 | net_set_state(prev_net_state); |
Ramon Fried | 3eaac63 | 2019-07-18 21:43:30 +0300 | [diff] [blame] | 758 | |
| 759 | #if defined(CONFIG_CMD_PCAP) |
| 760 | if (pcap_active()) |
| 761 | pcap_print_status(); |
| 762 | #endif |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 763 | return ret; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 764 | } |
| 765 | |
| 766 | /**********************************************************************/ |
| 767 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 768 | static void start_again_timeout_handler(void) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 769 | { |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 770 | net_set_state(NETLOOP_RESTART); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 771 | } |
| 772 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 773 | int net_start_again(void) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 774 | { |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 775 | char *nretry; |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 776 | int retry_forever = 0; |
| 777 | unsigned long retrycnt = 0; |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 778 | int ret; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 779 | |
Simon Glass | 00caae6 | 2017-08-03 12:22:12 -0600 | [diff] [blame] | 780 | nretry = env_get("netretry"); |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 781 | if (nretry) { |
| 782 | if (!strcmp(nretry, "yes")) |
| 783 | retry_forever = 1; |
| 784 | else if (!strcmp(nretry, "no")) |
| 785 | retrycnt = 0; |
| 786 | else if (!strcmp(nretry, "once")) |
| 787 | retrycnt = 1; |
| 788 | else |
| 789 | retrycnt = simple_strtoul(nretry, NULL, 0); |
Joe Hershberger | 5c42133 | 2015-03-22 17:09:07 -0500 | [diff] [blame] | 790 | } else { |
| 791 | retrycnt = 0; |
| 792 | retry_forever = 0; |
| 793 | } |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 794 | |
Leonid Iziumtsev | 17d413b | 2018-03-09 15:29:06 +0100 | [diff] [blame] | 795 | if ((!retry_forever) && (net_try_count > retrycnt)) { |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 796 | eth_halt(); |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 797 | net_set_state(NETLOOP_FAIL); |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 798 | /* |
| 799 | * We don't provide a way for the protocol to return an error, |
| 800 | * but this is almost always the reason. |
| 801 | */ |
| 802 | return -ETIMEDOUT; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 803 | } |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 804 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 805 | net_try_count++; |
Remy Bohmer | 67b96e8 | 2009-10-28 22:13:39 +0100 | [diff] [blame] | 806 | |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 807 | eth_halt(); |
Matthias Fuchs | 8b0c5c1 | 2007-12-27 16:58:41 +0100 | [diff] [blame] | 808 | #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 809 | eth_try_another(!net_restarted); |
Matthias Fuchs | 8b0c5c1 | 2007-12-27 16:58:41 +0100 | [diff] [blame] | 810 | #endif |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 811 | ret = eth_init(); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 812 | if (net_restart_wrap) { |
| 813 | net_restart_wrap = 0; |
| 814 | if (net_dev_exists) { |
| 815 | net_set_timeout_handler(10000UL, |
| 816 | start_again_timeout_handler); |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 817 | net_set_udp_handler(NULL); |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 818 | } else { |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 819 | net_set_state(NETLOOP_FAIL); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 820 | } |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 821 | } else { |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 822 | net_set_state(NETLOOP_RESTART); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 823 | } |
Joe Hershberger | 6030459 | 2015-03-22 17:09:24 -0500 | [diff] [blame] | 824 | return ret; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 825 | } |
| 826 | |
| 827 | /**********************************************************************/ |
| 828 | /* |
| 829 | * Miscelaneous bits. |
| 830 | */ |
| 831 | |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 832 | static void dummy_handler(uchar *pkt, unsigned dport, |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 833 | struct in_addr sip, unsigned sport, |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 834 | unsigned len) |
Joe Hershberger | d280d3f | 2012-05-23 07:58:01 +0000 | [diff] [blame] | 835 | { |
Joe Hershberger | d280d3f | 2012-05-23 07:58:01 +0000 | [diff] [blame] | 836 | } |
| 837 | |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 838 | rxhand_f *net_get_udp_handler(void) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 839 | { |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 840 | return udp_packet_handler; |
| 841 | } |
| 842 | |
| 843 | void net_set_udp_handler(rxhand_f *f) |
| 844 | { |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 845 | debug_cond(DEBUG_INT_STATE, "--- net_loop UDP handler set (%p)\n", f); |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 846 | if (f == NULL) |
| 847 | udp_packet_handler = dummy_handler; |
| 848 | else |
| 849 | udp_packet_handler = f; |
| 850 | } |
| 851 | |
| 852 | rxhand_f *net_get_arp_handler(void) |
| 853 | { |
| 854 | return arp_packet_handler; |
| 855 | } |
| 856 | |
| 857 | void net_set_arp_handler(rxhand_f *f) |
| 858 | { |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 859 | debug_cond(DEBUG_INT_STATE, "--- net_loop ARP handler set (%p)\n", f); |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 860 | if (f == NULL) |
| 861 | arp_packet_handler = dummy_handler; |
| 862 | else |
| 863 | arp_packet_handler = f; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 864 | } |
| 865 | |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 866 | #ifdef CONFIG_CMD_TFTPPUT |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 867 | void net_set_icmp_handler(rxhand_icmp_f *f) |
| 868 | { |
| 869 | packet_icmp_handler = f; |
| 870 | } |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 871 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 872 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 873 | void net_set_timeout_handler(ulong iv, thand_f *f) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 874 | { |
| 875 | if (iv == 0) { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 876 | debug_cond(DEBUG_INT_STATE, |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 877 | "--- net_loop timeout handler cancelled\n"); |
| 878 | time_handler = (thand_f *)0; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 879 | } else { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 880 | debug_cond(DEBUG_INT_STATE, |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 881 | "--- net_loop timeout handler set (%p)\n", f); |
| 882 | time_handler = f; |
| 883 | time_start = get_timer(0); |
| 884 | time_delta = iv * CONFIG_SYS_HZ / 1000; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 885 | } |
| 886 | } |
| 887 | |
Joe Hershberger | ac3f26c | 2018-09-26 16:49:02 -0500 | [diff] [blame] | 888 | uchar *net_get_async_tx_pkt_buf(void) |
| 889 | { |
| 890 | if (arp_is_waiting()) |
| 891 | return arp_tx_packet; /* If we are waiting, we already sent */ |
| 892 | else |
| 893 | return net_tx_packet; |
| 894 | } |
| 895 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 896 | int net_send_udp_packet(uchar *ether, struct in_addr dest, int dport, int sport, |
Joe Hershberger | 206d07f | 2012-05-23 07:58:10 +0000 | [diff] [blame] | 897 | int payload_len) |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 898 | { |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 899 | return net_send_ip_packet(ether, dest, dport, sport, payload_len, |
| 900 | IPPROTO_UDP, 0, 0, 0); |
| 901 | } |
| 902 | |
Ying-Chun Liu (PaulLiu) | a3bf193 | 2022-11-08 14:17:28 +0800 | [diff] [blame] | 903 | #if defined(CONFIG_PROT_TCP) |
| 904 | int net_send_tcp_packet(int payload_len, int dport, int sport, u8 action, |
| 905 | u32 tcp_seq_num, u32 tcp_ack_num) |
| 906 | { |
| 907 | return net_send_ip_packet(net_server_ethaddr, net_server_ip, dport, |
| 908 | sport, payload_len, IPPROTO_TCP, action, |
| 909 | tcp_seq_num, tcp_ack_num); |
| 910 | } |
| 911 | #endif |
| 912 | |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 913 | int net_send_ip_packet(uchar *ether, struct in_addr dest, int dport, int sport, |
| 914 | int payload_len, int proto, u8 action, u32 tcp_seq_num, |
| 915 | u32 tcp_ack_num) |
| 916 | { |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 917 | uchar *pkt; |
Joe Hershberger | 9214637 | 2012-05-23 07:59:08 +0000 | [diff] [blame] | 918 | int eth_hdr_size; |
| 919 | int pkt_hdr_size; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 920 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 921 | /* make sure the net_tx_packet is initialized (net_init() was called) */ |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 922 | assert(net_tx_packet != NULL); |
| 923 | if (net_tx_packet == NULL) |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 924 | return -1; |
| 925 | |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 926 | /* convert to new style broadcast */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 927 | if (dest.s_addr == 0) |
| 928 | dest.s_addr = 0xFFFFFFFF; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 929 | |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 930 | /* if broadcast, make the ether address a broadcast and don't do ARP */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 931 | if (dest.s_addr == 0xFFFFFFFF) |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 932 | ether = (uchar *)net_bcast_ethaddr; |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 933 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 934 | pkt = (uchar *)net_tx_packet; |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 935 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 936 | eth_hdr_size = net_set_ether(pkt, ether, PROT_IP); |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 937 | |
| 938 | switch (proto) { |
| 939 | case IPPROTO_UDP: |
| 940 | net_set_udp_header(pkt + eth_hdr_size, dest, dport, sport, |
| 941 | payload_len); |
| 942 | pkt_hdr_size = eth_hdr_size + IP_UDP_HDR_SIZE; |
| 943 | break; |
Ying-Chun Liu (PaulLiu) | a3bf193 | 2022-11-08 14:17:28 +0800 | [diff] [blame] | 944 | #if defined(CONFIG_PROT_TCP) |
| 945 | case IPPROTO_TCP: |
| 946 | pkt_hdr_size = eth_hdr_size |
| 947 | + tcp_set_tcp_header(pkt + eth_hdr_size, dport, sport, |
| 948 | payload_len, action, tcp_seq_num, |
| 949 | tcp_ack_num); |
| 950 | break; |
| 951 | #endif |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 952 | default: |
| 953 | return -EINVAL; |
| 954 | } |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 955 | |
Joe Hershberger | e94070c | 2012-05-23 07:59:24 +0000 | [diff] [blame] | 956 | /* if MAC address was not discovered yet, do an ARP request */ |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 957 | if (memcmp(ether, net_null_ethaddr, 6) == 0) { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 958 | debug_cond(DEBUG_DEV_PKT, "sending ARP for %pI4\n", &dest); |
Joe Hershberger | 9214637 | 2012-05-23 07:59:08 +0000 | [diff] [blame] | 959 | |
| 960 | /* save the ip and eth addr for the packet to send after arp */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 961 | net_arp_wait_packet_ip = dest; |
Joe Hershberger | 85d25e0 | 2015-04-08 01:41:08 -0500 | [diff] [blame] | 962 | arp_wait_packet_ethaddr = ether; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 963 | |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 964 | /* size of the waiting packet */ |
Joe Hershberger | 85d25e0 | 2015-04-08 01:41:08 -0500 | [diff] [blame] | 965 | arp_wait_tx_packet_size = pkt_hdr_size + payload_len; |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 966 | |
| 967 | /* and do the ARP request */ |
Joe Hershberger | 85d25e0 | 2015-04-08 01:41:08 -0500 | [diff] [blame] | 968 | arp_wait_try = 1; |
| 969 | arp_wait_timer_start = get_timer(0); |
| 970 | arp_request(); |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 971 | return 1; /* waiting */ |
Joe Hershberger | 9214637 | 2012-05-23 07:59:08 +0000 | [diff] [blame] | 972 | } else { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 973 | debug_cond(DEBUG_DEV_PKT, "sending UDP to %pI4/%pM\n", |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 974 | &dest, ether); |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 975 | net_send_packet(net_tx_packet, pkt_hdr_size + payload_len); |
Joe Hershberger | 9214637 | 2012-05-23 07:59:08 +0000 | [diff] [blame] | 976 | return 0; /* transmitted */ |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 977 | } |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 978 | } |
| 979 | |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 980 | #ifdef CONFIG_IP_DEFRAG |
| 981 | /* |
| 982 | * This function collects fragments in a single packet, according |
| 983 | * to the algorithm in RFC815. It returns NULL or the pointer to |
| 984 | * a complete packet, in static storage |
| 985 | */ |
Joe Hershberger | aa7a648 | 2016-08-15 14:42:15 -0500 | [diff] [blame] | 986 | #define IP_PKTSIZE (CONFIG_NET_MAXDEFRAG) |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 987 | |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 988 | #define IP_MAXUDP (IP_PKTSIZE - IP_HDR_SIZE) |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 989 | |
| 990 | /* |
| 991 | * this is the packet being assembled, either data or frag control. |
| 992 | * Fragments go by 8 bytes, so this union must be 8 bytes long |
| 993 | */ |
| 994 | struct hole { |
| 995 | /* first_byte is address of this structure */ |
| 996 | u16 last_byte; /* last byte in this hole + 1 (begin of next hole) */ |
| 997 | u16 next_hole; /* index of next (in 8-b blocks), 0 == none */ |
| 998 | u16 prev_hole; /* index of prev, 0 == none */ |
| 999 | u16 unused; |
| 1000 | }; |
| 1001 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1002 | static struct ip_udp_hdr *__net_defragment(struct ip_udp_hdr *ip, int *lenp) |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1003 | { |
Joe Hershberger | 48522bb | 2012-05-15 08:59:08 +0000 | [diff] [blame] | 1004 | static uchar pkt_buff[IP_PKTSIZE] __aligned(PKTALIGN); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1005 | static u16 first_hole, total_len; |
| 1006 | struct hole *payload, *thisfrag, *h, *newh; |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 1007 | struct ip_udp_hdr *localip = (struct ip_udp_hdr *)pkt_buff; |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1008 | uchar *indata = (uchar *)ip; |
| 1009 | int offset8, start, len, done = 0; |
| 1010 | u16 ip_off = ntohs(ip->ip_off); |
| 1011 | |
Rasmus Villemoes | 1817c38 | 2022-10-14 19:43:39 +0200 | [diff] [blame] | 1012 | /* |
| 1013 | * Calling code already rejected <, but we don't have to deal |
| 1014 | * with an IP fragment with no payload. |
| 1015 | */ |
| 1016 | if (ntohs(ip->ip_len) <= IP_HDR_SIZE) |
Fabio Estevam | b85d130 | 2022-05-26 11:14:37 -0300 | [diff] [blame] | 1017 | return NULL; |
| 1018 | |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1019 | /* payload starts after IP header, this fragment is in there */ |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 1020 | payload = (struct hole *)(pkt_buff + IP_HDR_SIZE); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1021 | offset8 = (ip_off & IP_OFFS); |
| 1022 | thisfrag = payload + offset8; |
| 1023 | start = offset8 * 8; |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 1024 | len = ntohs(ip->ip_len) - IP_HDR_SIZE; |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1025 | |
Rasmus Villemoes | 1817c38 | 2022-10-14 19:43:39 +0200 | [diff] [blame] | 1026 | /* All but last fragment must have a multiple-of-8 payload. */ |
| 1027 | if ((len & 7) && (ip_off & IP_FLAGS_MFRAG)) |
| 1028 | return NULL; |
| 1029 | |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1030 | if (start + len > IP_MAXUDP) /* fragment extends too far */ |
| 1031 | return NULL; |
| 1032 | |
| 1033 | if (!total_len || localip->ip_id != ip->ip_id) { |
| 1034 | /* new (or different) packet, reset structs */ |
| 1035 | total_len = 0xffff; |
| 1036 | payload[0].last_byte = ~0; |
| 1037 | payload[0].next_hole = 0; |
| 1038 | payload[0].prev_hole = 0; |
| 1039 | first_hole = 0; |
| 1040 | /* any IP header will work, copy the first we received */ |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 1041 | memcpy(localip, ip, IP_HDR_SIZE); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1042 | } |
| 1043 | |
| 1044 | /* |
| 1045 | * What follows is the reassembly algorithm. We use the payload |
| 1046 | * array as a linked list of hole descriptors, as each hole starts |
| 1047 | * at a multiple of 8 bytes. However, last byte can be whatever value, |
| 1048 | * so it is represented as byte count, not as 8-byte blocks. |
| 1049 | */ |
| 1050 | |
| 1051 | h = payload + first_hole; |
| 1052 | while (h->last_byte < start) { |
| 1053 | if (!h->next_hole) { |
| 1054 | /* no hole that far away */ |
| 1055 | return NULL; |
| 1056 | } |
| 1057 | h = payload + h->next_hole; |
| 1058 | } |
| 1059 | |
Fillod Stephane | e397e59 | 2010-06-11 19:26:43 +0200 | [diff] [blame] | 1060 | /* last fragment may be 1..7 bytes, the "+7" forces acceptance */ |
| 1061 | if (offset8 + ((len + 7) / 8) <= h - payload) { |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1062 | /* no overlap with holes (dup fragment?) */ |
| 1063 | return NULL; |
| 1064 | } |
| 1065 | |
| 1066 | if (!(ip_off & IP_FLAGS_MFRAG)) { |
| 1067 | /* no more fragmentss: truncate this (last) hole */ |
| 1068 | total_len = start + len; |
| 1069 | h->last_byte = start + len; |
| 1070 | } |
| 1071 | |
| 1072 | /* |
Rasmus Villemoes | 0686968 | 2022-10-17 09:52:51 +0200 | [diff] [blame] | 1073 | * There is some overlap: fix the hole list. This code deals |
| 1074 | * with a fragment that overlaps with two different holes |
| 1075 | * (thus being a superset of a previously-received fragment) |
| 1076 | * by only using the part of the fragment that fits in the |
| 1077 | * first hole. |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1078 | */ |
Rasmus Villemoes | 0686968 | 2022-10-17 09:52:51 +0200 | [diff] [blame] | 1079 | if (h->last_byte < start + len) |
| 1080 | len = h->last_byte - start; |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1081 | |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1082 | if ((h >= thisfrag) && (h->last_byte <= start + len)) { |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1083 | /* complete overlap with hole: remove hole */ |
| 1084 | if (!h->prev_hole && !h->next_hole) { |
| 1085 | /* last remaining hole */ |
| 1086 | done = 1; |
| 1087 | } else if (!h->prev_hole) { |
| 1088 | /* first hole */ |
| 1089 | first_hole = h->next_hole; |
| 1090 | payload[h->next_hole].prev_hole = 0; |
| 1091 | } else if (!h->next_hole) { |
| 1092 | /* last hole */ |
| 1093 | payload[h->prev_hole].next_hole = 0; |
| 1094 | } else { |
| 1095 | /* in the middle of the list */ |
| 1096 | payload[h->next_hole].prev_hole = h->prev_hole; |
| 1097 | payload[h->prev_hole].next_hole = h->next_hole; |
| 1098 | } |
| 1099 | |
| 1100 | } else if (h->last_byte <= start + len) { |
| 1101 | /* overlaps with final part of the hole: shorten this hole */ |
| 1102 | h->last_byte = start; |
| 1103 | |
| 1104 | } else if (h >= thisfrag) { |
| 1105 | /* overlaps with initial part of the hole: move this hole */ |
| 1106 | newh = thisfrag + (len / 8); |
| 1107 | *newh = *h; |
| 1108 | h = newh; |
| 1109 | if (h->next_hole) |
| 1110 | payload[h->next_hole].prev_hole = (h - payload); |
| 1111 | if (h->prev_hole) |
| 1112 | payload[h->prev_hole].next_hole = (h - payload); |
| 1113 | else |
| 1114 | first_hole = (h - payload); |
| 1115 | |
| 1116 | } else { |
| 1117 | /* fragment sits in the middle: split the hole */ |
| 1118 | newh = thisfrag + (len / 8); |
| 1119 | *newh = *h; |
| 1120 | h->last_byte = start; |
| 1121 | h->next_hole = (newh - payload); |
| 1122 | newh->prev_hole = (h - payload); |
| 1123 | if (newh->next_hole) |
| 1124 | payload[newh->next_hole].prev_hole = (newh - payload); |
| 1125 | } |
| 1126 | |
| 1127 | /* finally copy this fragment and possibly return whole packet */ |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 1128 | memcpy((uchar *)thisfrag, indata + IP_HDR_SIZE, len); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1129 | if (!done) |
| 1130 | return NULL; |
| 1131 | |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 1132 | *lenp = total_len + IP_HDR_SIZE; |
Rasmus Villemoes | 06653c7 | 2022-10-14 19:43:40 +0200 | [diff] [blame] | 1133 | localip->ip_len = htons(*lenp); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1134 | return localip; |
| 1135 | } |
| 1136 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1137 | static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip, |
| 1138 | int *lenp) |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1139 | { |
| 1140 | u16 ip_off = ntohs(ip->ip_off); |
| 1141 | if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG))) |
| 1142 | return ip; /* not a fragment */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1143 | return __net_defragment(ip, lenp); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1144 | } |
| 1145 | |
| 1146 | #else /* !CONFIG_IP_DEFRAG */ |
| 1147 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1148 | static inline struct ip_udp_hdr *net_defragment(struct ip_udp_hdr *ip, |
| 1149 | int *lenp) |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1150 | { |
| 1151 | u16 ip_off = ntohs(ip->ip_off); |
| 1152 | if (!(ip_off & (IP_OFFS | IP_FLAGS_MFRAG))) |
| 1153 | return ip; /* not a fragment */ |
| 1154 | return NULL; |
| 1155 | } |
| 1156 | #endif |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1157 | |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1158 | /** |
| 1159 | * Receive an ICMP packet. We deal with REDIRECT and PING here, and silently |
| 1160 | * drop others. |
| 1161 | * |
| 1162 | * @parma ip IP packet containing the ICMP |
| 1163 | */ |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 1164 | static void receive_icmp(struct ip_udp_hdr *ip, int len, |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1165 | struct in_addr src_ip, struct ethernet_hdr *et) |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1166 | { |
Joe Hershberger | e0a6307 | 2012-05-23 07:58:09 +0000 | [diff] [blame] | 1167 | struct icmp_hdr *icmph = (struct icmp_hdr *)&ip->udp_src; |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1168 | |
| 1169 | switch (icmph->type) { |
| 1170 | case ICMP_REDIRECT: |
| 1171 | if (icmph->code != ICMP_REDIR_HOST) |
| 1172 | return; |
| 1173 | printf(" ICMP Host Redirect to %pI4 ", |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1174 | &icmph->un.gateway); |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1175 | break; |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1176 | default: |
Joe Hershberger | a36b12f | 2012-05-23 07:58:02 +0000 | [diff] [blame] | 1177 | #if defined(CONFIG_CMD_PING) |
| 1178 | ping_receive(et, ip, len); |
| 1179 | #endif |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 1180 | #ifdef CONFIG_CMD_TFTPPUT |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 1181 | if (packet_icmp_handler) |
| 1182 | packet_icmp_handler(icmph->type, icmph->code, |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1183 | ntohs(ip->udp_dst), src_ip, |
| 1184 | ntohs(ip->udp_src), icmph->un.data, |
| 1185 | ntohs(ip->udp_len)); |
Simon Glass | 39bccd2 | 2011-10-26 14:18:38 +0000 | [diff] [blame] | 1186 | #endif |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1187 | break; |
| 1188 | } |
| 1189 | } |
| 1190 | |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 1191 | void net_process_received_packet(uchar *in_packet, int len) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1192 | { |
Joe Hershberger | cb487f5 | 2012-05-23 07:58:06 +0000 | [diff] [blame] | 1193 | struct ethernet_hdr *et; |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 1194 | struct ip_udp_hdr *ip; |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1195 | struct in_addr dst_ip; |
| 1196 | struct in_addr src_ip; |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1197 | int eth_proto; |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 1198 | #if defined(CONFIG_CMD_CDP) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1199 | int iscdp; |
| 1200 | #endif |
| 1201 | ushort cti = 0, vlanid = VLAN_NONE, myvlanid, mynvlanid; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1202 | |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1203 | debug_cond(DEBUG_NET_PKT, "packet received\n"); |
Sean Anderson | 798962c | 2023-10-07 21:53:12 -0400 | [diff] [blame] | 1204 | if (DEBUG_NET_PKT_TRACE) |
| 1205 | print_hex_dump_bytes("rx: ", DUMP_PREFIX_OFFSET, in_packet, |
| 1206 | len); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1207 | |
Ramon Fried | 3eaac63 | 2019-07-18 21:43:30 +0300 | [diff] [blame] | 1208 | #if defined(CONFIG_CMD_PCAP) |
| 1209 | pcap_post(in_packet, len, false); |
| 1210 | #endif |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 1211 | net_rx_packet = in_packet; |
| 1212 | net_rx_packet_len = len; |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 1213 | et = (struct ethernet_hdr *)in_packet; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1214 | |
| 1215 | /* too small packet? */ |
| 1216 | if (len < ETHER_HDR_SIZE) |
| 1217 | return; |
| 1218 | |
Alexander Graf | 0efe1bc | 2016-05-06 21:01:01 +0200 | [diff] [blame] | 1219 | #if defined(CONFIG_API) || defined(CONFIG_EFI_LOADER) |
Rafal Jaworowski | f85b607 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 1220 | if (push_packet) { |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 1221 | (*push_packet)(in_packet, len); |
Rafal Jaworowski | f85b607 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 1222 | return; |
| 1223 | } |
| 1224 | #endif |
| 1225 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 1226 | #if defined(CONFIG_CMD_CDP) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1227 | /* keep track if packet is CDP */ |
Joe Hershberger | 1735188 | 2012-05-23 07:58:00 +0000 | [diff] [blame] | 1228 | iscdp = is_cdp_packet(et->et_dest); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1229 | #endif |
| 1230 | |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1231 | myvlanid = ntohs(net_our_vlan); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1232 | if (myvlanid == (ushort)-1) |
| 1233 | myvlanid = VLAN_NONE; |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1234 | mynvlanid = ntohs(net_native_vlan); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1235 | if (mynvlanid == (ushort)-1) |
| 1236 | mynvlanid = VLAN_NONE; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1237 | |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1238 | eth_proto = ntohs(et->et_protlen); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1239 | |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1240 | if (eth_proto < 1514) { |
Joe Hershberger | cb487f5 | 2012-05-23 07:58:06 +0000 | [diff] [blame] | 1241 | struct e802_hdr *et802 = (struct e802_hdr *)et; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1242 | /* |
Joe Hershberger | da5ebe2 | 2012-05-23 07:58:11 +0000 | [diff] [blame] | 1243 | * Got a 802.2 packet. Check the other protocol field. |
| 1244 | * XXX VLAN over 802.2+SNAP not implemented! |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1245 | */ |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1246 | eth_proto = ntohs(et802->et_prot); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1247 | |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 1248 | ip = (struct ip_udp_hdr *)(in_packet + E802_HDR_SIZE); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1249 | len -= E802_HDR_SIZE; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1250 | |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1251 | } else if (eth_proto != PROT_VLAN) { /* normal packet */ |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 1252 | ip = (struct ip_udp_hdr *)(in_packet + ETHER_HDR_SIZE); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1253 | len -= ETHER_HDR_SIZE; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1254 | |
| 1255 | } else { /* VLAN packet */ |
Joe Hershberger | c68cca3 | 2012-05-23 07:58:07 +0000 | [diff] [blame] | 1256 | struct vlan_ethernet_hdr *vet = |
| 1257 | (struct vlan_ethernet_hdr *)et; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1258 | |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1259 | debug_cond(DEBUG_NET_PKT, "VLAN packet received\n"); |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1260 | |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1261 | /* too small packet? */ |
| 1262 | if (len < VLAN_ETHER_HDR_SIZE) |
| 1263 | return; |
| 1264 | |
| 1265 | /* if no VLAN active */ |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1266 | if ((ntohs(net_our_vlan) & VLAN_IDMASK) == VLAN_NONE |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 1267 | #if defined(CONFIG_CMD_CDP) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1268 | && iscdp == 0 |
| 1269 | #endif |
| 1270 | ) |
| 1271 | return; |
| 1272 | |
| 1273 | cti = ntohs(vet->vet_tag); |
| 1274 | vlanid = cti & VLAN_IDMASK; |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1275 | eth_proto = ntohs(vet->vet_type); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1276 | |
Joe Hershberger | 2a504df | 2015-03-22 17:09:11 -0500 | [diff] [blame] | 1277 | ip = (struct ip_udp_hdr *)(in_packet + VLAN_ETHER_HDR_SIZE); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1278 | len -= VLAN_ETHER_HDR_SIZE; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1279 | } |
| 1280 | |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1281 | debug_cond(DEBUG_NET_PKT, "Receive from protocol 0x%x\n", eth_proto); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1282 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 1283 | #if defined(CONFIG_CMD_CDP) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1284 | if (iscdp) { |
Joe Hershberger | 0b4c5ff | 2012-05-23 07:58:13 +0000 | [diff] [blame] | 1285 | cdp_receive((uchar *)ip, len); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1286 | return; |
| 1287 | } |
| 1288 | #endif |
| 1289 | |
| 1290 | if ((myvlanid & VLAN_IDMASK) != VLAN_NONE) { |
| 1291 | if (vlanid == VLAN_NONE) |
| 1292 | vlanid = (mynvlanid & VLAN_IDMASK); |
| 1293 | /* not matched? */ |
| 1294 | if (vlanid != (myvlanid & VLAN_IDMASK)) |
| 1295 | return; |
| 1296 | } |
| 1297 | |
Joe Hershberger | 8d353eb | 2012-05-23 07:58:12 +0000 | [diff] [blame] | 1298 | switch (eth_proto) { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1299 | case PROT_ARP: |
Joe Hershberger | 85d25e0 | 2015-04-08 01:41:08 -0500 | [diff] [blame] | 1300 | arp_receive(et, ip, len); |
wdenk | 289f932 | 2005-01-12 00:15:14 +0000 | [diff] [blame] | 1301 | break; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1302 | |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 1303 | #ifdef CONFIG_CMD_RARP |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1304 | case PROT_RARP: |
Joe Hershberger | 8b9c532 | 2012-05-23 07:58:03 +0000 | [diff] [blame] | 1305 | rarp_receive(ip, len); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1306 | break; |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 1307 | #endif |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 1308 | #if IS_ENABLED(CONFIG_IPV6) |
| 1309 | case PROT_IP6: |
| 1310 | net_ip6_handler(et, (struct ip6_hdr *)ip, len); |
Viacheslav Mitrofanov | 0d6d5a4 | 2022-12-06 10:08:16 +0300 | [diff] [blame] | 1311 | break; |
Viacheslav Mitrofanov | ffdbf3b | 2022-12-02 12:18:06 +0300 | [diff] [blame] | 1312 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1313 | case PROT_IP: |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1314 | debug_cond(DEBUG_NET_PKT, "Got IP\n"); |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1315 | /* Before we start poking the header, make sure it is there */ |
Rasmus Villemoes | ad359d8 | 2022-10-14 19:43:38 +0200 | [diff] [blame] | 1316 | if (len < IP_HDR_SIZE) { |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 1317 | debug("len bad %d < %lu\n", len, |
Rasmus Villemoes | ad359d8 | 2022-10-14 19:43:38 +0200 | [diff] [blame] | 1318 | (ulong)IP_HDR_SIZE); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1319 | return; |
| 1320 | } |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1321 | /* Check the packet length */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1322 | if (len < ntohs(ip->ip_len)) { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1323 | debug("len bad %d < %d\n", len, ntohs(ip->ip_len)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1324 | return; |
| 1325 | } |
| 1326 | len = ntohs(ip->ip_len); |
Rasmus Villemoes | ad359d8 | 2022-10-14 19:43:38 +0200 | [diff] [blame] | 1327 | if (len < IP_HDR_SIZE) { |
| 1328 | debug("bad ip->ip_len %d < %d\n", len, (int)IP_HDR_SIZE); |
| 1329 | return; |
| 1330 | } |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1331 | debug_cond(DEBUG_NET_PKT, "len=%d, v=%02x\n", |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1332 | len, ip->ip_hl_v & 0xff); |
Robin Getz | 0ebf04c | 2009-07-23 03:01:03 -0400 | [diff] [blame] | 1333 | |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1334 | /* Can't deal with anything except IPv4 */ |
Luca Ceresoli | d3c65b0 | 2011-05-04 02:40:43 +0000 | [diff] [blame] | 1335 | if ((ip->ip_hl_v & 0xf0) != 0x40) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1336 | return; |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1337 | /* Can't deal with IP options (headers != 20 bytes) */ |
Rasmus Villemoes | b0fcc48 | 2022-10-14 19:43:37 +0200 | [diff] [blame] | 1338 | if ((ip->ip_hl_v & 0x0f) != 0x05) |
Remy Bohmer | 6b52cfe | 2008-06-03 15:48:17 +0200 | [diff] [blame] | 1339 | return; |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1340 | /* Check the Checksum of the header */ |
Simon Glass | 0da0fcd | 2015-01-19 22:16:08 -0700 | [diff] [blame] | 1341 | if (!ip_checksum_ok((uchar *)ip, IP_HDR_SIZE)) { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1342 | debug("checksum bad\n"); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1343 | return; |
| 1344 | } |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1345 | /* If it is not for us, ignore it */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1346 | dst_ip = net_read_ip(&ip->ip_dst); |
| 1347 | if (net_ip.s_addr && dst_ip.s_addr != net_ip.s_addr && |
| 1348 | dst_ip.s_addr != 0xFFFFFFFF) { |
Luca Ceresoli | c819abe | 2011-05-04 02:40:46 +0000 | [diff] [blame] | 1349 | return; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1350 | } |
Luca Ceresoli | 03eb129 | 2011-04-18 06:19:50 +0000 | [diff] [blame] | 1351 | /* Read source IP address for later use */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1352 | src_ip = net_read_ip(&ip->ip_src); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1353 | /* |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1354 | * The function returns the unchanged packet if it's not |
| 1355 | * a fragment, and either the complete packet or NULL if |
| 1356 | * it is a fragment (if !CONFIG_IP_DEFRAG, it returns NULL) |
| 1357 | */ |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1358 | ip = net_defragment(ip, &len); |
Luca Ceresoli | ccb9ebe | 2011-05-04 02:40:47 +0000 | [diff] [blame] | 1359 | if (!ip) |
Alessandro Rubini | 5cfaa4e | 2009-08-07 13:58:56 +0200 | [diff] [blame] | 1360 | return; |
| 1361 | /* |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1362 | * watch for ICMP host redirects |
| 1363 | * |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 1364 | * There is no real handler code (yet). We just watch |
| 1365 | * for ICMP host redirect messages. In case anybody |
| 1366 | * sees these messages: please contact me |
| 1367 | * (wd@denx.de), or - even better - send me the |
| 1368 | * necessary fixes :-) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1369 | * |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 1370 | * Note: in all cases where I have seen this so far |
| 1371 | * it was a problem with the router configuration, |
| 1372 | * for instance when a router was configured in the |
| 1373 | * BOOTP reply, but the TFTP server was on the same |
| 1374 | * subnet. So this is probably a warning that your |
| 1375 | * configuration might be wrong. But I'm not really |
| 1376 | * sure if there aren't any other situations. |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 1377 | * |
| 1378 | * Simon Glass <sjg@chromium.org>: We get an ICMP when |
| 1379 | * we send a tftp packet to a dead connection, or when |
| 1380 | * there is no server at the other end. |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1381 | */ |
| 1382 | if (ip->ip_p == IPPROTO_ICMP) { |
Simon Glass | 8f79bb1 | 2011-10-24 18:00:00 +0000 | [diff] [blame] | 1383 | receive_icmp(ip, len, src_ip, et); |
| 1384 | return; |
Ying-Chun Liu (PaulLiu) | a3bf193 | 2022-11-08 14:17:28 +0800 | [diff] [blame] | 1385 | #if defined(CONFIG_PROT_TCP) |
| 1386 | } else if (ip->ip_p == IPPROTO_TCP) { |
| 1387 | debug_cond(DEBUG_DEV_PKT, |
| 1388 | "TCP PH (to=%pI4, from=%pI4, len=%d)\n", |
| 1389 | &dst_ip, &src_ip, len); |
| 1390 | |
| 1391 | rxhand_tcp_f((union tcp_build_pkt *)ip, len); |
| 1392 | return; |
| 1393 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1394 | } else if (ip->ip_p != IPPROTO_UDP) { /* Only UDP packets */ |
| 1395 | return; |
| 1396 | } |
| 1397 | |
Rasmus Villemoes | 06653c7 | 2022-10-14 19:43:40 +0200 | [diff] [blame] | 1398 | if (ntohs(ip->udp_len) < UDP_HDR_SIZE || ntohs(ip->udp_len) > len - IP_HDR_SIZE) |
liucheng (G) | fe72880 | 2019-08-29 13:47:33 +0000 | [diff] [blame] | 1399 | return; |
| 1400 | |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1401 | debug_cond(DEBUG_DEV_PKT, |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1402 | "received UDP (to=%pI4, from=%pI4, len=%d)\n", |
| 1403 | &dst_ip, &src_ip, len); |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 1404 | |
Simon Glass | 4b37fd1 | 2021-12-18 11:27:49 -0700 | [diff] [blame] | 1405 | if (IS_ENABLED(CONFIG_UDP_CHECKSUM) && ip->udp_xsum != 0) { |
Wolfgang Denk | b2f5080 | 2005-08-12 23:43:12 +0200 | [diff] [blame] | 1406 | ulong xsum; |
Heinrich Schuchardt | 8524423 | 2019-11-05 12:48:19 +0100 | [diff] [blame] | 1407 | u8 *sumptr; |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1408 | ushort sumlen; |
| 1409 | |
| 1410 | xsum = ip->ip_p; |
| 1411 | xsum += (ntohs(ip->udp_len)); |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1412 | xsum += (ntohl(ip->ip_src.s_addr) >> 16) & 0x0000ffff; |
| 1413 | xsum += (ntohl(ip->ip_src.s_addr) >> 0) & 0x0000ffff; |
| 1414 | xsum += (ntohl(ip->ip_dst.s_addr) >> 16) & 0x0000ffff; |
| 1415 | xsum += (ntohl(ip->ip_dst.s_addr) >> 0) & 0x0000ffff; |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1416 | |
| 1417 | sumlen = ntohs(ip->udp_len); |
Heinrich Schuchardt | 8524423 | 2019-11-05 12:48:19 +0100 | [diff] [blame] | 1418 | sumptr = (u8 *)&ip->udp_src; |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1419 | |
| 1420 | while (sumlen > 1) { |
Heinrich Schuchardt | 8524423 | 2019-11-05 12:48:19 +0100 | [diff] [blame] | 1421 | /* inlined ntohs() to avoid alignment errors */ |
| 1422 | xsum += (sumptr[0] << 8) + sumptr[1]; |
| 1423 | sumptr += 2; |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1424 | sumlen -= 2; |
| 1425 | } |
Heinrich Schuchardt | 8524423 | 2019-11-05 12:48:19 +0100 | [diff] [blame] | 1426 | if (sumlen > 0) |
| 1427 | xsum += (sumptr[0] << 8) + sumptr[0]; |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1428 | while ((xsum >> 16) != 0) { |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 1429 | xsum = (xsum & 0x0000ffff) + |
| 1430 | ((xsum >> 16) & 0x0000ffff); |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1431 | } |
| 1432 | if ((xsum != 0x00000000) && (xsum != 0x0000ffff)) { |
Wolfgang Denk | 9b55a25 | 2008-07-11 01:16:00 +0200 | [diff] [blame] | 1433 | printf(" UDP wrong checksum %08lx %08x\n", |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1434 | xsum, ntohs(ip->udp_xsum)); |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1435 | return; |
| 1436 | } |
| 1437 | } |
Stefan Roese | 8534bf9 | 2005-08-12 20:06:52 +0200 | [diff] [blame] | 1438 | |
Holger Dengler | 66c89ee | 2017-07-20 10:10:55 +0200 | [diff] [blame] | 1439 | #if defined(CONFIG_NETCONSOLE) && !defined(CONFIG_SPL_BUILD) |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 1440 | nc_input_packet((uchar *)ip + IP_UDP_HDR_SIZE, |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 1441 | src_ip, |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1442 | ntohs(ip->udp_dst), |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 1443 | ntohs(ip->udp_src), |
| 1444 | ntohs(ip->udp_len) - UDP_HDR_SIZE); |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1445 | #endif |
| 1446 | /* |
| 1447 | * IP header OK. Pass the packet to the current handler. |
| 1448 | */ |
| 1449 | (*udp_packet_handler)((uchar *)ip + IP_UDP_HDR_SIZE, |
| 1450 | ntohs(ip->udp_dst), |
| 1451 | src_ip, |
| 1452 | ntohs(ip->udp_src), |
| 1453 | ntohs(ip->udp_len) - UDP_HDR_SIZE); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1454 | break; |
Lothar Felten | d8970da | 2018-06-22 22:29:54 +0200 | [diff] [blame] | 1455 | #ifdef CONFIG_CMD_WOL |
| 1456 | case PROT_WOL: |
| 1457 | wol_receive(ip, len); |
| 1458 | break; |
| 1459 | #endif |
Samuel Mendoza-Jonas | 09bd3d0 | 2022-08-08 21:46:03 +0930 | [diff] [blame] | 1460 | #ifdef CONFIG_PHY_NCSI |
| 1461 | case PROT_NCSI: |
| 1462 | ncsi_receive(et, ip, len); |
| 1463 | break; |
| 1464 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1465 | } |
| 1466 | } |
| 1467 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1468 | /**********************************************************************/ |
| 1469 | |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 1470 | static int net_check_prereq(enum proto_t protocol) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1471 | { |
| 1472 | switch (protocol) { |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1473 | /* Fall through */ |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 1474 | #if defined(CONFIG_CMD_PING) |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 1475 | case PING: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1476 | if (net_ping_ip.s_addr == 0) { |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1477 | puts("*** ERROR: ping address not given\n"); |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1478 | return 1; |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1479 | } |
| 1480 | goto common; |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 1481 | #endif |
Viacheslav Mitrofanov | eeb0a2c | 2022-12-02 12:18:08 +0300 | [diff] [blame] | 1482 | #if defined(CONFIG_CMD_PING6) |
| 1483 | case PING6: |
| 1484 | if (ip6_is_unspecified_addr(&net_ping_ip6)) { |
| 1485 | puts("*** ERROR: ping address not given\n"); |
| 1486 | return 1; |
| 1487 | } |
| 1488 | goto common; |
| 1489 | #endif |
Robin Getz | 1a32bf4 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 1490 | #if defined(CONFIG_CMD_DNS) |
| 1491 | case DNS: |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1492 | if (net_dns_server.s_addr == 0) { |
Robin Getz | 1a32bf4 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 1493 | puts("*** ERROR: DNS server address not given\n"); |
| 1494 | return 1; |
| 1495 | } |
| 1496 | goto common; |
| 1497 | #endif |
Philippe Reynes | b43ea1b | 2020-09-18 14:13:00 +0200 | [diff] [blame] | 1498 | #if defined(CONFIG_PROT_UDP) |
| 1499 | case UDP: |
| 1500 | if (udp_prereq()) |
| 1501 | return 1; |
| 1502 | goto common; |
| 1503 | #endif |
| 1504 | |
Jon Loeliger | 643d1ab | 2007-07-09 17:45:14 -0500 | [diff] [blame] | 1505 | #if defined(CONFIG_CMD_NFS) |
wdenk | cbd8a35 | 2004-02-24 02:00:03 +0000 | [diff] [blame] | 1506 | case NFS: |
| 1507 | #endif |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1508 | /* Fall through */ |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 1509 | case TFTPGET: |
Simon Glass | 1fb7cd4 | 2011-10-24 18:00:07 +0000 | [diff] [blame] | 1510 | case TFTPPUT: |
Viacheslav Mitrofanov | 7fbf230 | 2022-12-02 12:18:07 +0300 | [diff] [blame] | 1511 | if (IS_ENABLED(CONFIG_IPV6) && use_ip6) { |
| 1512 | if (!memcmp(&net_server_ip6, &net_null_addr_ip6, |
| 1513 | sizeof(struct in6_addr)) && |
| 1514 | !strchr(net_boot_file_name, '[')) { |
| 1515 | puts("*** ERROR: `serverip6' not set\n"); |
| 1516 | return 1; |
| 1517 | } |
| 1518 | } else if (net_server_ip.s_addr == 0 && !is_serverip_in_cmd()) { |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1519 | puts("*** ERROR: `serverip' not set\n"); |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1520 | return 1; |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1521 | } |
Philippe Reynes | 912ece4 | 2020-09-18 14:13:02 +0200 | [diff] [blame] | 1522 | #if defined(CONFIG_CMD_PING) || \ |
Philippe Reynes | b43ea1b | 2020-09-18 14:13:00 +0200 | [diff] [blame] | 1523 | defined(CONFIG_CMD_DNS) || defined(CONFIG_PROT_UDP) |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1524 | common: |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 1525 | #endif |
Simon Guinot | 8b6bbe1 | 2011-05-01 23:38:40 +0000 | [diff] [blame] | 1526 | /* Fall through */ |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 1527 | |
Simon Guinot | 8b6bbe1 | 2011-05-01 23:38:40 +0000 | [diff] [blame] | 1528 | case NETCONS: |
Dmitrii Merkurev | 443d319 | 2023-04-12 19:49:30 +0100 | [diff] [blame] | 1529 | case FASTBOOT_UDP: |
| 1530 | case FASTBOOT_TCP: |
Luca Ceresoli | 7a83af0 | 2011-05-17 00:03:40 +0000 | [diff] [blame] | 1531 | case TFTPSRV: |
Viacheslav Mitrofanov | 7fbf230 | 2022-12-02 12:18:07 +0300 | [diff] [blame] | 1532 | if (IS_ENABLED(CONFIG_IPV6) && use_ip6) { |
| 1533 | if (!memcmp(&net_link_local_ip6, &net_null_addr_ip6, |
| 1534 | sizeof(struct in6_addr))) { |
| 1535 | puts("*** ERROR: `ip6addr` not set\n"); |
| 1536 | return 1; |
| 1537 | } |
| 1538 | } else if (net_ip.s_addr == 0) { |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1539 | puts("*** ERROR: `ipaddr' not set\n"); |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1540 | return 1; |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1541 | } |
| 1542 | /* Fall through */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1543 | |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 1544 | #ifdef CONFIG_CMD_RARP |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1545 | case RARP: |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 1546 | #endif |
Samuel Mendoza-Jonas | 09bd3d0 | 2022-08-08 21:46:03 +0930 | [diff] [blame] | 1547 | #ifdef CONFIG_PHY_NCSI |
| 1548 | case NCSI: |
| 1549 | #endif |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1550 | case BOOTP: |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1551 | case CDP: |
Peter Tyser | bf6cb24 | 2010-09-30 11:25:48 -0500 | [diff] [blame] | 1552 | case DHCP: |
Joe Hershberger | d22c338 | 2012-05-23 08:00:12 +0000 | [diff] [blame] | 1553 | case LINKLOCAL: |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 1554 | if (memcmp(net_ethaddr, "\0\0\0\0\0\0", 6) == 0) { |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1555 | int num = eth_get_dev_index(); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1556 | |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1557 | switch (num) { |
| 1558 | case -1: |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1559 | puts("*** ERROR: No ethernet found.\n"); |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1560 | return 1; |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1561 | case 0: |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1562 | puts("*** ERROR: `ethaddr' not set\n"); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1563 | break; |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1564 | default: |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1565 | printf("*** ERROR: `eth%daddr' not set\n", |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1566 | num); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1567 | break; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1568 | } |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1569 | |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1570 | net_start_again(); |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1571 | return 2; |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1572 | } |
| 1573 | /* Fall through */ |
| 1574 | default: |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1575 | return 0; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1576 | } |
Luca Ceresoli | 92895de | 2011-05-04 02:40:45 +0000 | [diff] [blame] | 1577 | return 0; /* OK */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1578 | } |
| 1579 | /**********************************************************************/ |
| 1580 | |
| 1581 | int |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 1582 | net_eth_hdr_size(void) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1583 | { |
| 1584 | ushort myvlanid; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1585 | |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1586 | myvlanid = ntohs(net_our_vlan); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1587 | if (myvlanid == (ushort)-1) |
| 1588 | myvlanid = VLAN_NONE; |
| 1589 | |
Luca Ceresoli | 3e38e42 | 2011-05-11 03:59:54 +0000 | [diff] [blame] | 1590 | return ((myvlanid & VLAN_IDMASK) == VLAN_NONE) ? ETHER_HDR_SIZE : |
| 1591 | VLAN_ETHER_HDR_SIZE; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1592 | } |
| 1593 | |
Joe Hershberger | 1203fcc | 2015-04-08 01:41:05 -0500 | [diff] [blame] | 1594 | int net_set_ether(uchar *xet, const uchar *dest_ethaddr, uint prot) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1595 | { |
Joe Hershberger | cb487f5 | 2012-05-23 07:58:06 +0000 | [diff] [blame] | 1596 | struct ethernet_hdr *et = (struct ethernet_hdr *)xet; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1597 | ushort myvlanid; |
| 1598 | |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1599 | myvlanid = ntohs(net_our_vlan); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1600 | if (myvlanid == (ushort)-1) |
| 1601 | myvlanid = VLAN_NONE; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1602 | |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 1603 | memcpy(et->et_dest, dest_ethaddr, 6); |
| 1604 | memcpy(et->et_src, net_ethaddr, 6); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1605 | if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { |
Luca Ceresoli | c819abe | 2011-05-04 02:40:46 +0000 | [diff] [blame] | 1606 | et->et_protlen = htons(prot); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1607 | return ETHER_HDR_SIZE; |
| 1608 | } else { |
Joe Hershberger | c68cca3 | 2012-05-23 07:58:07 +0000 | [diff] [blame] | 1609 | struct vlan_ethernet_hdr *vet = |
| 1610 | (struct vlan_ethernet_hdr *)xet; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1611 | |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1612 | vet->vet_vlan_type = htons(PROT_VLAN); |
| 1613 | vet->vet_tag = htons((0 << 5) | (myvlanid & VLAN_IDMASK)); |
| 1614 | vet->vet_type = htons(prot); |
| 1615 | return VLAN_ETHER_HDR_SIZE; |
| 1616 | } |
| 1617 | } |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1618 | |
Joe Hershberger | e711101 | 2012-05-23 07:59:16 +0000 | [diff] [blame] | 1619 | int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot) |
| 1620 | { |
| 1621 | ushort protlen; |
| 1622 | |
| 1623 | memcpy(et->et_dest, addr, 6); |
Joe Hershberger | 0adb5b7 | 2015-04-08 01:41:04 -0500 | [diff] [blame] | 1624 | memcpy(et->et_src, net_ethaddr, 6); |
Joe Hershberger | e711101 | 2012-05-23 07:59:16 +0000 | [diff] [blame] | 1625 | protlen = ntohs(et->et_protlen); |
| 1626 | if (protlen == PROT_VLAN) { |
| 1627 | struct vlan_ethernet_hdr *vet = |
| 1628 | (struct vlan_ethernet_hdr *)et; |
| 1629 | vet->vet_type = htons(prot); |
| 1630 | return VLAN_ETHER_HDR_SIZE; |
| 1631 | } else if (protlen > 1514) { |
| 1632 | et->et_protlen = htons(prot); |
| 1633 | return ETHER_HDR_SIZE; |
| 1634 | } else { |
| 1635 | /* 802.2 + SNAP */ |
| 1636 | struct e802_hdr *et802 = (struct e802_hdr *)et; |
| 1637 | et802->et_prot = htons(prot); |
| 1638 | return E802_HDR_SIZE; |
| 1639 | } |
| 1640 | } |
| 1641 | |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 1642 | void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source, |
| 1643 | u16 pkt_len, u8 proto) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1644 | { |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1645 | struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt; |
| 1646 | |
| 1647 | /* |
| 1648 | * Construct an IP header. |
| 1649 | */ |
| 1650 | /* IP_HDR_SIZE / 4 (not including UDP) */ |
| 1651 | ip->ip_hl_v = 0x45; |
| 1652 | ip->ip_tos = 0; |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 1653 | ip->ip_len = htons(pkt_len); |
| 1654 | ip->ip_p = proto; |
Joe Hershberger | bc0571f | 2015-04-08 01:41:21 -0500 | [diff] [blame] | 1655 | ip->ip_id = htons(net_ip_id++); |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1656 | ip->ip_off = htons(IP_FLAGS_DFRAG); /* Don't fragment */ |
| 1657 | ip->ip_ttl = 255; |
| 1658 | ip->ip_sum = 0; |
| 1659 | /* already in network byte order */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1660 | net_copy_ip((void *)&ip->ip_src, &source); |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1661 | /* already in network byte order */ |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1662 | net_copy_ip((void *)&ip->ip_dst, &dest); |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 1663 | |
| 1664 | ip->ip_sum = compute_ip_checksum(ip, IP_HDR_SIZE); |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1665 | } |
| 1666 | |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1667 | void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport, |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1668 | int len) |
| 1669 | { |
| 1670 | struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1671 | |
| 1672 | /* |
| 1673 | * If the data is an odd number of bytes, zero the |
| 1674 | * byte after the last byte so that the checksum |
| 1675 | * will work. |
| 1676 | */ |
| 1677 | if (len & 1) |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1678 | pkt[IP_UDP_HDR_SIZE + len] = 0; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1679 | |
Duncan Hare | 5d457ec | 2018-06-24 15:40:41 -0700 | [diff] [blame] | 1680 | net_set_ip_header(pkt, dest, net_ip, IP_UDP_HDR_SIZE + len, |
| 1681 | IPPROTO_UDP); |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 1682 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1683 | ip->udp_src = htons(sport); |
| 1684 | ip->udp_dst = htons(dport); |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 1685 | ip->udp_len = htons(UDP_HDR_SIZE + len); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1686 | ip->udp_xsum = 0; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1687 | } |
| 1688 | |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1689 | void copy_filename(char *dst, const char *src, int size) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1690 | { |
Joe Hershberger | 16cf145 | 2018-07-03 19:36:41 -0500 | [diff] [blame] | 1691 | if (src && *src && (*src == '"')) { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1692 | ++src; |
| 1693 | --size; |
| 1694 | } |
| 1695 | |
Joe Hershberger | 16cf145 | 2018-07-03 19:36:41 -0500 | [diff] [blame] | 1696 | while ((--size > 0) && src && *src && (*src != '"')) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1697 | *dst++ = *src++; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1698 | *dst = '\0'; |
| 1699 | } |
| 1700 | |
Joe Hershberger | 3a66fcb | 2018-07-03 19:36:39 -0500 | [diff] [blame] | 1701 | int is_serverip_in_cmd(void) |
| 1702 | { |
| 1703 | return !!strchr(net_boot_file_name, ':'); |
| 1704 | } |
| 1705 | |
Joe Hershberger | 6ab1283 | 2018-07-03 19:36:43 -0500 | [diff] [blame] | 1706 | int net_parse_bootfile(struct in_addr *ipaddr, char *filename, int max_len) |
| 1707 | { |
| 1708 | char *colon; |
Lyle Franklin | 85f8e03 | 2022-04-16 11:36:43 -0400 | [diff] [blame] | 1709 | struct in_addr ip; |
| 1710 | ip.s_addr = 0; |
Joe Hershberger | 6ab1283 | 2018-07-03 19:36:43 -0500 | [diff] [blame] | 1711 | |
| 1712 | if (net_boot_file_name[0] == '\0') |
| 1713 | return 0; |
| 1714 | |
| 1715 | colon = strchr(net_boot_file_name, ':'); |
| 1716 | if (colon) { |
Lyle Franklin | 85f8e03 | 2022-04-16 11:36:43 -0400 | [diff] [blame] | 1717 | ip = string_to_ip(net_boot_file_name); |
| 1718 | if (ipaddr && ip.s_addr) |
| 1719 | *ipaddr = ip; |
| 1720 | } |
| 1721 | if (ip.s_addr) { |
Joe Hershberger | 6ab1283 | 2018-07-03 19:36:43 -0500 | [diff] [blame] | 1722 | strncpy(filename, colon + 1, max_len); |
| 1723 | } else { |
| 1724 | strncpy(filename, net_boot_file_name, max_len); |
| 1725 | } |
| 1726 | filename[max_len - 1] = '\0'; |
| 1727 | |
| 1728 | return 1; |
| 1729 | } |
| 1730 | |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1731 | void ip_to_string(struct in_addr x, char *s) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1732 | { |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1733 | x.s_addr = ntohl(x.s_addr); |
Luca Ceresoli | 4f63acd | 2011-05-11 03:59:56 +0000 | [diff] [blame] | 1734 | sprintf(s, "%d.%d.%d.%d", |
Joe Hershberger | 049a95a | 2015-04-08 01:41:01 -0500 | [diff] [blame] | 1735 | (int) ((x.s_addr >> 24) & 0xff), |
| 1736 | (int) ((x.s_addr >> 16) & 0xff), |
| 1737 | (int) ((x.s_addr >> 8) & 0xff), |
| 1738 | (int) ((x.s_addr >> 0) & 0xff) |
wdenk | 6e59238 | 2004-04-18 17:39:38 +0000 | [diff] [blame] | 1739 | ); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1740 | } |
| 1741 | |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1742 | void vlan_to_string(ushort x, char *s) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1743 | { |
| 1744 | x = ntohs(x); |
| 1745 | |
| 1746 | if (x == (ushort)-1) |
| 1747 | x = VLAN_NONE; |
| 1748 | |
| 1749 | if (x == VLAN_NONE) |
| 1750 | strcpy(s, "none"); |
| 1751 | else |
| 1752 | sprintf(s, "%d", x & VLAN_IDMASK); |
| 1753 | } |
| 1754 | |
Joe Hershberger | 4fd5055 | 2015-04-08 01:41:17 -0500 | [diff] [blame] | 1755 | ushort string_to_vlan(const char *s) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1756 | { |
| 1757 | ushort id; |
| 1758 | |
| 1759 | if (s == NULL) |
wdenk | b9711de | 2004-04-25 13:18:40 +0000 | [diff] [blame] | 1760 | return htons(VLAN_NONE); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1761 | |
| 1762 | if (*s < '0' || *s > '9') |
| 1763 | id = VLAN_NONE; |
| 1764 | else |
Simon Glass | 0b1284e | 2021-07-24 09:03:30 -0600 | [diff] [blame] | 1765 | id = (ushort)dectoul(s, NULL); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1766 | |
wdenk | b9711de | 2004-04-25 13:18:40 +0000 | [diff] [blame] | 1767 | return htons(id); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 1768 | } |
|