wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 1 | /* |
| 2 | * LiMon Monitor (LiMon) - Network. |
| 3 | * |
| 4 | * Copyright 1994 - 2000 Neil Russell. |
| 5 | * (See License) |
| 6 | * |
| 7 | * |
| 8 | * History |
| 9 | * 9/16/00 bor adapted to TQM823L/STK8xxL board, RARP/TFTP boot added |
| 10 | */ |
| 11 | |
| 12 | #ifndef __NET_H__ |
| 13 | #define __NET_H__ |
| 14 | |
wdenk | 71f9511 | 2003-06-15 22:40:42 +0000 | [diff] [blame] | 15 | #if defined(CONFIG_8xx) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 16 | #include <commproc.h> |
wdenk | 71f9511 | 2003-06-15 22:40:42 +0000 | [diff] [blame] | 17 | #endif /* CONFIG_8xx */ |
wdenk | aacf9a4 | 2003-01-17 16:27:01 +0000 | [diff] [blame] | 18 | |
Eric Nelson | 2c4b3c1 | 2012-03-15 18:33:24 +0000 | [diff] [blame] | 19 | #include <asm/cache.h> |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 20 | #include <asm/byteorder.h> /* for nton* / ntoh* stuff */ |
| 21 | |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 22 | #define DEBUG_LL_STATE 0 /* Link local state machine changes */ |
| 23 | #define DEBUG_DEV_PKT 0 /* Packets or info directed to the device */ |
| 24 | #define DEBUG_NET_PKT 0 /* Packets on info on the network at large */ |
| 25 | #define DEBUG_INT_STATE 0 /* Internal network state changes */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 26 | |
| 27 | /* |
| 28 | * The number of receive packet buffers, and the required packet buffer |
| 29 | * alignment in memory. |
| 30 | * |
| 31 | */ |
| 32 | |
Jean-Christophe PLAGNIOL-VILLARD | 6d0f6bc | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 33 | #ifdef CONFIG_SYS_RX_ETH_BUFFER |
| 34 | # define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER |
wdenk | 1d0350e | 2002-11-11 21:14:20 +0000 | [diff] [blame] | 35 | #else |
stroese | c602883 | 2003-06-05 15:38:29 +0000 | [diff] [blame] | 36 | # define PKTBUFSRX 4 |
wdenk | 1d0350e | 2002-11-11 21:14:20 +0000 | [diff] [blame] | 37 | #endif |
| 38 | |
Eric Nelson | 2c4b3c1 | 2012-03-15 18:33:24 +0000 | [diff] [blame] | 39 | #define PKTALIGN ARCH_DMA_MINALIGN |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 40 | |
Matthias Weisser | ea45cb0 | 2011-12-03 03:29:44 +0000 | [diff] [blame] | 41 | /* IPv4 addresses are always 32 bits in size */ |
Kim Phillips | 3d49412 | 2013-01-16 18:09:11 -0600 | [diff] [blame] | 42 | typedef __be32 IPaddr_t; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 43 | |
| 44 | |
Luca Ceresoli | 03eb129 | 2011-04-18 06:19:50 +0000 | [diff] [blame] | 45 | /** |
| 46 | * An incoming packet handler. |
| 47 | * @param pkt pointer to the application packet |
| 48 | * @param dport destination UDP port |
| 49 | * @param sip source IP address |
| 50 | * @param sport source UDP port |
| 51 | * @param len packet length |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 52 | */ |
Luca Ceresoli | 03eb129 | 2011-04-18 06:19:50 +0000 | [diff] [blame] | 53 | typedef void rxhand_f(uchar *pkt, unsigned dport, |
| 54 | IPaddr_t sip, unsigned sport, |
| 55 | unsigned len); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 56 | |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 57 | /** |
| 58 | * An incoming ICMP packet handler. |
| 59 | * @param type ICMP type |
| 60 | * @param code ICMP code |
| 61 | * @param dport destination UDP port |
| 62 | * @param sip source IP address |
| 63 | * @param sport source UDP port |
| 64 | * @param pkt pointer to the ICMP packet data |
| 65 | * @param len packet length |
| 66 | */ |
| 67 | typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport, |
| 68 | IPaddr_t sip, unsigned sport, uchar *pkt, unsigned len); |
| 69 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 70 | /* |
| 71 | * A timeout handler. Called after time interval has expired. |
| 72 | */ |
| 73 | typedef void thand_f(void); |
| 74 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 75 | enum eth_state_t { |
| 76 | ETH_STATE_INIT, |
| 77 | ETH_STATE_PASSIVE, |
| 78 | ETH_STATE_ACTIVE |
| 79 | }; |
| 80 | |
| 81 | struct eth_device { |
Mike Frysinger | f6add13 | 2011-11-10 14:11:04 +0000 | [diff] [blame] | 82 | char name[16]; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 83 | unsigned char enetaddr[6]; |
| 84 | int iobase; |
| 85 | int state; |
| 86 | |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 87 | int (*init) (struct eth_device *, bd_t *); |
| 88 | int (*send) (struct eth_device *, void *packet, int length); |
| 89 | int (*recv) (struct eth_device *); |
| 90 | void (*halt) (struct eth_device *); |
David Updegraff | 53a5c42 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 91 | #ifdef CONFIG_MCAST_TFTP |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 92 | int (*mcast) (struct eth_device *, u32 ip, u8 set); |
David Updegraff | 53a5c42 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 93 | #endif |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 94 | int (*write_hwaddr) (struct eth_device *); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 95 | struct eth_device *next; |
Michael Walle | fea7dca | 2011-10-27 11:31:35 +0000 | [diff] [blame] | 96 | int index; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 97 | void *priv; |
| 98 | }; |
| 99 | |
Andy Fleming | 5dc0cf6 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 100 | extern int eth_initialize(bd_t *bis); /* Initialize network subsystem */ |
| 101 | extern int eth_register(struct eth_device* dev);/* Register network device */ |
Vincent Palatin | e7e982d | 2012-01-09 08:32:36 +0000 | [diff] [blame] | 102 | extern int eth_unregister(struct eth_device *dev);/* Remove network device */ |
Andy Fleming | 5dc0cf6 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 103 | extern void eth_try_another(int first_restart); /* Change the device */ |
Andy Fleming | 5dc0cf6 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 104 | extern void eth_set_current(void); /* set nterface to ethcur var */ |
Kim Phillips | 0637059 | 2012-10-29 13:34:33 +0000 | [diff] [blame] | 105 | |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 106 | /* get the current device MAC */ |
Kim Phillips | 0637059 | 2012-10-29 13:34:33 +0000 | [diff] [blame] | 107 | extern struct eth_device *eth_current; |
| 108 | |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 109 | static inline __attribute__((always_inline)) |
| 110 | struct eth_device *eth_get_dev(void) |
| 111 | { |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 112 | return eth_current; |
| 113 | } |
Ben Warren | d7fb9bc | 2010-07-29 12:56:11 -0700 | [diff] [blame] | 114 | extern struct eth_device *eth_get_dev_by_name(const char *devname); |
Andy Fleming | 5dc0cf6 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 115 | extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 116 | extern int eth_get_dev_index(void); /* get the device index */ |
Mike Frysinger | 3f6e699 | 2009-01-29 19:43:44 -0500 | [diff] [blame] | 117 | extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr); |
| 118 | extern int eth_getenv_enetaddr(char *name, uchar *enetaddr); |
| 119 | extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr); |
Simon Glass | 7616e78 | 2011-06-13 16:13:10 -0700 | [diff] [blame] | 120 | |
| 121 | /* |
| 122 | * Get the hardware address for an ethernet interface . |
| 123 | * Args: |
| 124 | * base_name - base name for device (normally "eth") |
| 125 | * index - device index number (0 for first) |
| 126 | * enetaddr - returns 6 byte hardware address |
| 127 | * Returns: |
| 128 | * Return true if the address is valid. |
| 129 | */ |
| 130 | extern int eth_getenv_enetaddr_by_index(const char *base_name, int index, |
| 131 | uchar *enetaddr); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 132 | |
Michael Walle | 03c1b04 | 2012-06-05 11:33:16 +0000 | [diff] [blame] | 133 | #ifdef CONFIG_RANDOM_MACADDR |
| 134 | /* |
| 135 | * The u-boot policy does not allow hardcoded ethernet addresses. Under the |
| 136 | * following circumstances a random generated address is allowed: |
| 137 | * - in emergency cases, where you need a working network connection to set |
| 138 | * the ethernet address. |
| 139 | * Eg. you want a rescue boot and don't have a serial port to access the |
| 140 | * CLI to set environment variables. |
| 141 | * |
| 142 | * In these cases, we generate a random locally administered ethernet address. |
| 143 | * |
| 144 | * Args: |
| 145 | * enetaddr - returns 6 byte hardware address |
| 146 | */ |
| 147 | extern void eth_random_enetaddr(uchar *enetaddr); |
| 148 | #endif |
| 149 | |
Remy Bohmer | 23cd138 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 150 | extern int usb_eth_initialize(bd_t *bi); |
Andy Fleming | 5dc0cf6 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 151 | extern int eth_init(bd_t *bis); /* Initialize the device */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 152 | extern int eth_send(void *packet, int length); /* Send a packet */ |
Remy Bohmer | 23cd138 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 153 | |
Rafal Jaworowski | f85b607 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 154 | #ifdef CONFIG_API |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 155 | extern int eth_receive(void *packet, int length); /* Receive a packet*/ |
| 156 | extern void (*push_packet)(void *packet, int length); |
Rafal Jaworowski | f85b607 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 157 | #endif |
Andy Fleming | 5dc0cf6 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 158 | extern int eth_rx(void); /* Check for received packets */ |
| 159 | extern void eth_halt(void); /* stop SCC */ |
| 160 | extern char *eth_get_name(void); /* get name of current device */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 161 | |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 162 | /* Set active state */ |
| 163 | static inline __attribute__((always_inline)) int eth_init_state_only(bd_t *bis) |
| 164 | { |
| 165 | eth_get_dev()->state = ETH_STATE_ACTIVE; |
| 166 | |
| 167 | return 0; |
| 168 | } |
| 169 | /* Set passive state */ |
| 170 | static inline __attribute__((always_inline)) void eth_halt_state_only(void) |
| 171 | { |
| 172 | eth_get_dev()->state = ETH_STATE_PASSIVE; |
| 173 | } |
| 174 | |
Simon Glass | 7616e78 | 2011-06-13 16:13:10 -0700 | [diff] [blame] | 175 | /* |
| 176 | * Set the hardware address for an ethernet interface based on 'eth%daddr' |
| 177 | * environment variable (or just 'ethaddr' if eth_number is 0). |
| 178 | * Args: |
| 179 | * base_name - base name for device (normally "eth") |
| 180 | * eth_number - value of %d (0 for first device of this type) |
| 181 | * Returns: |
| 182 | * 0 is success, non-zero is error status from driver. |
| 183 | */ |
| 184 | int eth_write_hwaddr(struct eth_device *dev, const char *base_name, |
| 185 | int eth_number); |
| 186 | |
David Updegraff | 53a5c42 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 187 | #ifdef CONFIG_MCAST_TFTP |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 188 | int eth_mcast_join(IPaddr_t mcast_addr, u8 join); |
| 189 | u32 ether_crc(size_t len, unsigned char const *p); |
David Updegraff | 53a5c42 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 190 | #endif |
| 191 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 192 | |
| 193 | /**********************************************************************/ |
| 194 | /* |
| 195 | * Protocol headers. |
| 196 | */ |
| 197 | |
| 198 | /* |
| 199 | * Ethernet header |
| 200 | */ |
Joe Hershberger | cb487f5 | 2012-05-23 07:58:06 +0000 | [diff] [blame] | 201 | |
| 202 | struct ethernet_hdr { |
| 203 | uchar et_dest[6]; /* Destination node */ |
| 204 | uchar et_src[6]; /* Source node */ |
| 205 | ushort et_protlen; /* Protocol or length */ |
| 206 | }; |
| 207 | |
| 208 | /* Ethernet header size */ |
| 209 | #define ETHER_HDR_SIZE (sizeof(struct ethernet_hdr)) |
| 210 | |
| 211 | struct e802_hdr { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 212 | uchar et_dest[6]; /* Destination node */ |
| 213 | uchar et_src[6]; /* Source node */ |
| 214 | ushort et_protlen; /* Protocol or length */ |
| 215 | uchar et_dsap; /* 802 DSAP */ |
| 216 | uchar et_ssap; /* 802 SSAP */ |
| 217 | uchar et_ctl; /* 802 control */ |
| 218 | uchar et_snap1; /* SNAP */ |
| 219 | uchar et_snap2; |
| 220 | uchar et_snap3; |
| 221 | ushort et_prot; /* 802 protocol */ |
Joe Hershberger | cb487f5 | 2012-05-23 07:58:06 +0000 | [diff] [blame] | 222 | }; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 223 | |
Joe Hershberger | da5ebe2 | 2012-05-23 07:58:11 +0000 | [diff] [blame] | 224 | /* 802 + SNAP + ethernet header size */ |
Joe Hershberger | cb487f5 | 2012-05-23 07:58:06 +0000 | [diff] [blame] | 225 | #define E802_HDR_SIZE (sizeof(struct e802_hdr)) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 226 | |
| 227 | /* |
Joe Hershberger | da5ebe2 | 2012-05-23 07:58:11 +0000 | [diff] [blame] | 228 | * Virtual LAN Ethernet header |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 229 | */ |
Joe Hershberger | c68cca3 | 2012-05-23 07:58:07 +0000 | [diff] [blame] | 230 | struct vlan_ethernet_hdr { |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 231 | uchar vet_dest[6]; /* Destination node */ |
| 232 | uchar vet_src[6]; /* Source node */ |
| 233 | ushort vet_vlan_type; /* PROT_VLAN */ |
| 234 | ushort vet_tag; /* TAG of VLAN */ |
| 235 | ushort vet_type; /* protocol type */ |
Joe Hershberger | c68cca3 | 2012-05-23 07:58:07 +0000 | [diff] [blame] | 236 | }; |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 237 | |
Joe Hershberger | c68cca3 | 2012-05-23 07:58:07 +0000 | [diff] [blame] | 238 | /* VLAN Ethernet header size */ |
| 239 | #define VLAN_ETHER_HDR_SIZE (sizeof(struct vlan_ethernet_hdr)) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 240 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 241 | #define PROT_IP 0x0800 /* IP protocol */ |
| 242 | #define PROT_ARP 0x0806 /* IP ARP protocol */ |
| 243 | #define PROT_RARP 0x8035 /* IP ARP protocol */ |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 244 | #define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 245 | |
| 246 | #define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ |
| 247 | #define IPPROTO_UDP 17 /* User Datagram Protocol */ |
| 248 | |
| 249 | /* |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 250 | * Internet Protocol (IP) header. |
| 251 | */ |
| 252 | struct ip_hdr { |
| 253 | uchar ip_hl_v; /* header length and version */ |
| 254 | uchar ip_tos; /* type of service */ |
| 255 | ushort ip_len; /* total length */ |
| 256 | ushort ip_id; /* identification */ |
| 257 | ushort ip_off; /* fragment offset field */ |
| 258 | uchar ip_ttl; /* time to live */ |
| 259 | uchar ip_p; /* protocol */ |
| 260 | ushort ip_sum; /* checksum */ |
| 261 | IPaddr_t ip_src; /* Source IP address */ |
| 262 | IPaddr_t ip_dst; /* Destination IP address */ |
| 263 | }; |
| 264 | |
| 265 | #define IP_OFFS 0x1fff /* ip offset *= 8 */ |
| 266 | #define IP_FLAGS 0xe000 /* first 3 bits */ |
| 267 | #define IP_FLAGS_RES 0x8000 /* reserved */ |
| 268 | #define IP_FLAGS_DFRAG 0x4000 /* don't fragments */ |
| 269 | #define IP_FLAGS_MFRAG 0x2000 /* more fragments */ |
| 270 | |
| 271 | #define IP_HDR_SIZE (sizeof(struct ip_hdr)) |
| 272 | |
| 273 | /* |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 274 | * Internet Protocol (IP) + UDP header. |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 275 | */ |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 276 | struct ip_udp_hdr { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 277 | uchar ip_hl_v; /* header length and version */ |
| 278 | uchar ip_tos; /* type of service */ |
| 279 | ushort ip_len; /* total length */ |
| 280 | ushort ip_id; /* identification */ |
| 281 | ushort ip_off; /* fragment offset field */ |
| 282 | uchar ip_ttl; /* time to live */ |
| 283 | uchar ip_p; /* protocol */ |
| 284 | ushort ip_sum; /* checksum */ |
| 285 | IPaddr_t ip_src; /* Source IP address */ |
| 286 | IPaddr_t ip_dst; /* Destination IP address */ |
| 287 | ushort udp_src; /* UDP source port */ |
| 288 | ushort udp_dst; /* UDP destination port */ |
| 289 | ushort udp_len; /* Length of UDP packet */ |
| 290 | ushort udp_xsum; /* Checksum */ |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 291 | }; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 292 | |
Joe Hershberger | 594c26f | 2012-05-23 07:58:04 +0000 | [diff] [blame] | 293 | #define IP_UDP_HDR_SIZE (sizeof(struct ip_udp_hdr)) |
Joe Hershberger | c5c59df | 2012-05-23 07:58:05 +0000 | [diff] [blame] | 294 | #define UDP_HDR_SIZE (IP_UDP_HDR_SIZE - IP_HDR_SIZE) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 295 | |
| 296 | /* |
| 297 | * Address Resolution Protocol (ARP) header. |
| 298 | */ |
Joe Hershberger | 738853b | 2012-05-23 07:58:08 +0000 | [diff] [blame] | 299 | struct arp_hdr { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 300 | ushort ar_hrd; /* Format of hardware address */ |
| 301 | # define ARP_ETHER 1 /* Ethernet hardware address */ |
| 302 | ushort ar_pro; /* Format of protocol address */ |
| 303 | uchar ar_hln; /* Length of hardware address */ |
Joe Hershberger | 674bb24 | 2012-05-23 07:58:17 +0000 | [diff] [blame] | 304 | # define ARP_HLEN 6 |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 305 | uchar ar_pln; /* Length of protocol address */ |
Joe Hershberger | 674bb24 | 2012-05-23 07:58:17 +0000 | [diff] [blame] | 306 | # define ARP_PLEN 4 |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 307 | ushort ar_op; /* Operation */ |
| 308 | # define ARPOP_REQUEST 1 /* Request to resolve address */ |
| 309 | # define ARPOP_REPLY 2 /* Response to previous request */ |
| 310 | |
| 311 | # define RARPOP_REQUEST 3 /* Request to resolve address */ |
| 312 | # define RARPOP_REPLY 4 /* Response to previous request */ |
| 313 | |
| 314 | /* |
wdenk | 8bde7f7 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 315 | * The remaining fields are variable in size, according to |
| 316 | * the sizes above, and are defined as appropriate for |
| 317 | * specific hardware/protocol combinations. |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 318 | */ |
| 319 | uchar ar_data[0]; |
Joe Hershberger | 674bb24 | 2012-05-23 07:58:17 +0000 | [diff] [blame] | 320 | #define ar_sha ar_data[0] |
| 321 | #define ar_spa ar_data[ARP_HLEN] |
| 322 | #define ar_tha ar_data[ARP_HLEN + ARP_PLEN] |
| 323 | #define ar_tpa ar_data[ARP_HLEN + ARP_PLEN + ARP_HLEN] |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 324 | #if 0 |
| 325 | uchar ar_sha[]; /* Sender hardware address */ |
| 326 | uchar ar_spa[]; /* Sender protocol address */ |
| 327 | uchar ar_tha[]; /* Target hardware address */ |
| 328 | uchar ar_tpa[]; /* Target protocol address */ |
| 329 | #endif /* 0 */ |
Joe Hershberger | 738853b | 2012-05-23 07:58:08 +0000 | [diff] [blame] | 330 | }; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 331 | |
| 332 | #define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ |
| 333 | |
| 334 | /* |
| 335 | * ICMP stuff (just enough to handle (host) redirect messages) |
| 336 | */ |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 337 | #define ICMP_ECHO_REPLY 0 /* Echo reply */ |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 338 | #define ICMP_NOT_REACH 3 /* Detination unreachable */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 339 | #define ICMP_REDIRECT 5 /* Redirect (change route) */ |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 340 | #define ICMP_ECHO_REQUEST 8 /* Echo request */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 341 | |
| 342 | /* Codes for REDIRECT. */ |
| 343 | #define ICMP_REDIR_NET 0 /* Redirect Net */ |
| 344 | #define ICMP_REDIR_HOST 1 /* Redirect Host */ |
| 345 | |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 346 | /* Codes for NOT_REACH */ |
| 347 | #define ICMP_NOT_REACH_PORT 3 /* Port unreachable */ |
| 348 | |
Joe Hershberger | e0a6307 | 2012-05-23 07:58:09 +0000 | [diff] [blame] | 349 | struct icmp_hdr { |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 350 | uchar type; |
| 351 | uchar code; |
| 352 | ushort checksum; |
| 353 | union { |
| 354 | struct { |
| 355 | ushort id; |
| 356 | ushort sequence; |
| 357 | } echo; |
| 358 | ulong gateway; |
| 359 | struct { |
Jeroen Hofstee | 6e840eb | 2013-08-10 16:52:47 +0200 | [diff] [blame] | 360 | ushort unused; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 361 | ushort mtu; |
| 362 | } frag; |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 363 | uchar data[0]; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 364 | } un; |
Joe Hershberger | e0a6307 | 2012-05-23 07:58:09 +0000 | [diff] [blame] | 365 | }; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 366 | |
Joe Hershberger | e0a6307 | 2012-05-23 07:58:09 +0000 | [diff] [blame] | 367 | #define ICMP_HDR_SIZE (sizeof(struct icmp_hdr)) |
| 368 | #define IP_ICMP_HDR_SIZE (IP_HDR_SIZE + ICMP_HDR_SIZE) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 369 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 370 | /* |
| 371 | * Maximum packet size; used to allocate packet storage. |
| 372 | * TFTP packets can be 524 bytes + IP header + ethernet header. |
| 373 | * Lets be conservative, and go for 38 * 16. (Must also be |
| 374 | * a multiple of 32 bytes). |
| 375 | */ |
| 376 | /* |
| 377 | * AS.HARNOIS : Better to set PKTSIZE to maximum size because |
| 378 | * traffic type is not always controlled |
| 379 | * maximum packet size = 1518 |
| 380 | * maximum packet size and multiple of 32 bytes = 1536 |
| 381 | */ |
| 382 | #define PKTSIZE 1518 |
| 383 | #define PKTSIZE_ALIGN 1536 |
| 384 | /*#define PKTSIZE 608*/ |
| 385 | |
| 386 | /* |
| 387 | * Maximum receive ring size; that is, the number of packets |
| 388 | * we can buffer before overflow happens. Basically, this just |
| 389 | * needs to be enough to prevent a packet being discarded while |
| 390 | * we are processing the previous one. |
| 391 | */ |
| 392 | #define RINGSZ 4 |
| 393 | #define RINGSZ_LOG2 2 |
| 394 | |
| 395 | /**********************************************************************/ |
| 396 | /* |
| 397 | * Globals. |
| 398 | * |
| 399 | * Note: |
| 400 | * |
| 401 | * All variables of type IPaddr_t are stored in NETWORK byte order |
| 402 | * (big endian). |
| 403 | */ |
| 404 | |
| 405 | /* net.c */ |
| 406 | /** BOOTP EXTENTIONS **/ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 407 | extern IPaddr_t NetOurGatewayIP; /* Our gateway IP address */ |
| 408 | extern IPaddr_t NetOurSubnetMask; /* Our subnet mask (0 = unknown) */ |
| 409 | extern IPaddr_t NetOurDNSIP; /* Our Domain Name Server (0 = unknown) */ |
Jon Loeliger | 1fe80d7 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 410 | #if defined(CONFIG_BOOTP_DNS2) |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 411 | extern IPaddr_t NetOurDNS2IP; /* Our 2nd Domain Name Server (0 = unknown) */ |
stroese | fe389a8 | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 412 | #endif |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 413 | extern char NetOurNISDomain[32]; /* Our NIS domain */ |
| 414 | extern char NetOurHostName[32]; /* Our hostname */ |
| 415 | extern char NetOurRootPath[64]; /* Our root path */ |
| 416 | extern ushort NetBootFileSize; /* Our boot file size in blocks */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 417 | /** END OF BOOTP EXTENTIONS **/ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 418 | extern ulong NetBootFileXferSize; /* size of bootfile in bytes */ |
| 419 | extern uchar NetOurEther[6]; /* Our ethernet address */ |
| 420 | extern uchar NetServerEther[6]; /* Boot server enet address */ |
| 421 | extern IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
| 422 | extern IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 423 | extern uchar *NetTxPacket; /* THE transmit packet */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 424 | extern uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 425 | extern uchar *NetRxPacket; /* Current receive packet */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 426 | extern int NetRxPacketLen; /* Current rx packet length */ |
| 427 | extern unsigned NetIPID; /* IP ID (counting) */ |
| 428 | extern uchar NetBcastAddr[6]; /* Ethernet boardcast address */ |
wdenk | 68ceb29 | 2004-08-02 21:11:11 +0000 | [diff] [blame] | 429 | extern uchar NetEtherNullAddr[6]; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 430 | |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 431 | #define VLAN_NONE 4095 /* untagged */ |
| 432 | #define VLAN_IDMASK 0x0fff /* mask of valid vlan id */ |
| 433 | extern ushort NetOurVLAN; /* Our VLAN */ |
| 434 | extern ushort NetOurNativeVLAN; /* Our Native VLAN */ |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 435 | |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 436 | extern int NetRestartWrap; /* Tried all network devices */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 437 | |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 438 | enum proto_t { |
| 439 | BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP, |
Joe Hershberger | d22c338 | 2012-05-23 08:00:12 +0000 | [diff] [blame] | 440 | TFTPSRV, TFTPPUT, LINKLOCAL |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 441 | }; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 442 | |
| 443 | /* from net/net.c */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 444 | extern char BootFile[128]; /* Boot File name */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 445 | |
Robin Getz | 1a32bf4 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 446 | #if defined(CONFIG_CMD_DNS) |
| 447 | extern char *NetDNSResolve; /* The host to resolve */ |
| 448 | extern char *NetDNSenvvar; /* the env var to put the ip into */ |
| 449 | #endif |
| 450 | |
Jon Loeliger | 639221c | 2007-07-09 17:15:49 -0500 | [diff] [blame] | 451 | #if defined(CONFIG_CMD_PING) |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 452 | extern IPaddr_t NetPingIP; /* the ip address to ping */ |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 453 | #endif |
| 454 | |
Jon Loeliger | 639221c | 2007-07-09 17:15:49 -0500 | [diff] [blame] | 455 | #if defined(CONFIG_CMD_CDP) |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 456 | /* when CDP completes these hold the return values */ |
Joe Hershberger | f575ae1 | 2012-05-23 07:57:59 +0000 | [diff] [blame] | 457 | extern ushort CDPNativeVLAN; /* CDP returned native VLAN */ |
| 458 | extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */ |
Joe Hershberger | 1735188 | 2012-05-23 07:58:00 +0000 | [diff] [blame] | 459 | |
| 460 | /* |
| 461 | * Check for a CDP packet by examining the received MAC address field |
| 462 | */ |
| 463 | static inline int is_cdp_packet(const uchar *et_addr) |
| 464 | { |
| 465 | extern const uchar NetCDPAddr[6]; |
| 466 | |
| 467 | return memcmp(et_addr, NetCDPAddr, 6) == 0; |
| 468 | } |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 469 | #endif |
| 470 | |
Jon Loeliger | 639221c | 2007-07-09 17:15:49 -0500 | [diff] [blame] | 471 | #if defined(CONFIG_CMD_SNTP) |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 472 | extern IPaddr_t NetNtpServerIP; /* the ip address to NTP */ |
| 473 | extern int NetTimeOffset; /* offset time from UTC */ |
wdenk | ea287de | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 474 | #endif |
| 475 | |
Joe Hershberger | 13dfe94 | 2012-05-15 08:59:12 +0000 | [diff] [blame] | 476 | #if defined(CONFIG_MCAST_TFTP) |
| 477 | extern IPaddr_t Mcast_addr; |
| 478 | #endif |
| 479 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 480 | /* Initialize the network adapter */ |
Joe Hershberger | 46c495d | 2012-05-23 07:59:22 +0000 | [diff] [blame] | 481 | extern void net_init(void); |
Simon Glass | e4bf0c5 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 482 | extern int NetLoop(enum proto_t); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 483 | |
| 484 | /* Shutdown adapters and cleanup */ |
| 485 | extern void NetStop(void); |
| 486 | |
| 487 | /* Load failed. Start again. */ |
| 488 | extern void NetStartAgain(void); |
| 489 | |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 490 | /* Get size of the ethernet header when we send */ |
Wolfgang Denk | 53677ef | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 491 | extern int NetEthHdrSize(void); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 492 | |
| 493 | /* Set ethernet header; returns the size of the header */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 494 | extern int NetSetEther(uchar *, uchar *, uint); |
Joe Hershberger | e711101 | 2012-05-23 07:59:16 +0000 | [diff] [blame] | 495 | extern int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 496 | |
| 497 | /* Set IP header */ |
Joe Hershberger | 4b11c91 | 2012-05-23 07:59:07 +0000 | [diff] [blame] | 498 | extern void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source); |
| 499 | extern void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport, |
| 500 | int sport, int len); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 501 | |
| 502 | /* Checksum */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 503 | extern int NetCksumOk(uchar *, int); /* Return true if cksum OK */ |
| 504 | extern uint NetCksum(uchar *, int); /* Calculate the checksum */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 505 | |
Joe Hershberger | d280d3f | 2012-05-23 07:58:01 +0000 | [diff] [blame] | 506 | /* Callbacks */ |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 507 | extern rxhand_f *net_get_udp_handler(void); /* Get UDP RX packet handler */ |
| 508 | extern void net_set_udp_handler(rxhand_f *); /* Set UDP RX packet handler */ |
| 509 | extern rxhand_f *net_get_arp_handler(void); /* Get ARP RX packet handler */ |
| 510 | extern void net_set_arp_handler(rxhand_f *); /* Set ARP RX packet handler */ |
Simon Glass | 4793ee6 | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 511 | extern void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 512 | extern void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 513 | |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 514 | /* Network loop state */ |
| 515 | enum net_loop_state { |
| 516 | NETLOOP_CONTINUE, |
| 517 | NETLOOP_RESTART, |
| 518 | NETLOOP_SUCCESS, |
| 519 | NETLOOP_FAIL |
| 520 | }; |
Kim Phillips | 0637059 | 2012-10-29 13:34:33 +0000 | [diff] [blame] | 521 | extern enum net_loop_state net_state; |
| 522 | |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 523 | static inline void net_set_state(enum net_loop_state state) |
| 524 | { |
Joe Hershberger | 4ef8d53 | 2012-05-23 08:01:04 +0000 | [diff] [blame] | 525 | debug_cond(DEBUG_INT_STATE, "--- NetState set to %d\n", state); |
Joe Hershberger | 22f6e99 | 2012-05-23 07:59:14 +0000 | [diff] [blame] | 526 | net_state = state; |
| 527 | } |
| 528 | |
Joe Hershberger | e94070c | 2012-05-23 07:59:24 +0000 | [diff] [blame] | 529 | /* Transmit a packet */ |
Joe Hershberger | adf5d93 | 2012-05-23 07:59:13 +0000 | [diff] [blame] | 530 | static inline void NetSendPacket(uchar *pkt, int len) |
| 531 | { |
| 532 | (void) eth_send(pkt, len); |
| 533 | } |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 534 | |
Joe Hershberger | 206d07f | 2012-05-23 07:58:10 +0000 | [diff] [blame] | 535 | /* |
Joe Hershberger | e94070c | 2012-05-23 07:59:24 +0000 | [diff] [blame] | 536 | * Transmit "NetTxPacket" as UDP packet, performing ARP request if needed |
Joe Hershberger | ece223b | 2012-05-23 07:59:15 +0000 | [diff] [blame] | 537 | * (ether will be populated) |
Joe Hershberger | 206d07f | 2012-05-23 07:58:10 +0000 | [diff] [blame] | 538 | * |
| 539 | * @param ether Raw packet buffer |
| 540 | * @param dest IP address to send the datagram to |
| 541 | * @param dport Destination UDP port |
| 542 | * @param sport Source UDP port |
| 543 | * @param payload_len Length of data after the UDP header |
| 544 | */ |
Joe Hershberger | e94070c | 2012-05-23 07:59:24 +0000 | [diff] [blame] | 545 | extern int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, |
Joe Hershberger | 206d07f | 2012-05-23 07:58:10 +0000 | [diff] [blame] | 546 | int sport, int payload_len); |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 547 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 548 | /* Processes a received packet */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 549 | extern void NetReceive(uchar *, int); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 550 | |
Joe Hershberger | 48522bb | 2012-05-15 08:59:08 +0000 | [diff] [blame] | 551 | #ifdef CONFIG_NETCONSOLE |
| 552 | void NcStart(void); |
Joe Hershberger | 8a0eccb | 2012-09-18 10:01:32 +0000 | [diff] [blame] | 553 | int nc_input_packet(uchar *pkt, IPaddr_t src_ip, unsigned dest_port, |
| 554 | unsigned src_port, unsigned len); |
Joe Hershberger | 48522bb | 2012-05-15 08:59:08 +0000 | [diff] [blame] | 555 | #endif |
| 556 | |
Joe Hershberger | f8be7d6 | 2012-08-03 10:59:08 +0000 | [diff] [blame] | 557 | static inline __attribute__((always_inline)) int eth_is_on_demand_init(void) |
| 558 | { |
| 559 | #ifdef CONFIG_NETCONSOLE |
| 560 | extern enum proto_t net_loop_last_protocol; |
| 561 | |
| 562 | return net_loop_last_protocol != NETCONS; |
| 563 | #else |
| 564 | return 1; |
| 565 | #endif |
| 566 | } |
| 567 | |
| 568 | static inline void eth_set_last_protocol(int protocol) |
| 569 | { |
| 570 | #ifdef CONFIG_NETCONSOLE |
| 571 | extern enum proto_t net_loop_last_protocol; |
| 572 | |
| 573 | net_loop_last_protocol = protocol; |
| 574 | #endif |
| 575 | } |
| 576 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 577 | /* |
Simon Glass | e4a3d57 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 578 | * Check if autoload is enabled. If so, use either NFS or TFTP to download |
| 579 | * the boot file. |
| 580 | */ |
| 581 | void net_auto_load(void); |
| 582 | |
| 583 | /* |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 584 | * The following functions are a bit ugly, but necessary to deal with |
| 585 | * alignment restrictions on ARM. |
| 586 | * |
| 587 | * We're using inline functions, which had the smallest memory |
| 588 | * footprint in our tests. |
| 589 | */ |
| 590 | /* return IP *in network byteorder* */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 591 | static inline IPaddr_t NetReadIP(void *from) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 592 | { |
| 593 | IPaddr_t ip; |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 594 | |
| 595 | memcpy((void *)&ip, (void *)from, sizeof(ip)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 596 | return ip; |
| 597 | } |
| 598 | |
| 599 | /* return ulong *in network byteorder* */ |
| 600 | static inline ulong NetReadLong(ulong *from) |
| 601 | { |
| 602 | ulong l; |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 603 | |
| 604 | memcpy((void *)&l, (void *)from, sizeof(l)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 605 | return l; |
| 606 | } |
| 607 | |
| 608 | /* write IP *in network byteorder* */ |
| 609 | static inline void NetWriteIP(void *to, IPaddr_t ip) |
| 610 | { |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 611 | memcpy(to, (void *)&ip, sizeof(ip)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 612 | } |
| 613 | |
| 614 | /* copy IP */ |
Joe Hershberger | db288a9 | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 615 | static inline void NetCopyIP(void *to, void *from) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 616 | { |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 617 | memcpy((void *)to, from, sizeof(IPaddr_t)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 618 | } |
| 619 | |
| 620 | /* copy ulong */ |
| 621 | static inline void NetCopyLong(ulong *to, ulong *from) |
| 622 | { |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 623 | memcpy((void *)to, (void *)from, sizeof(ulong)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 624 | } |
| 625 | |
Mike Rapoport | 50cca8b | 2007-08-12 08:48:27 +0300 | [diff] [blame] | 626 | /** |
| 627 | * is_zero_ether_addr - Determine if give Ethernet address is all zeros. |
| 628 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 629 | * |
| 630 | * Return true if the address is all zeroes. |
| 631 | */ |
| 632 | static inline int is_zero_ether_addr(const u8 *addr) |
| 633 | { |
| 634 | return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); |
| 635 | } |
| 636 | |
| 637 | /** |
| 638 | * is_multicast_ether_addr - Determine if the Ethernet address is a multicast. |
| 639 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 640 | * |
| 641 | * Return true if the address is a multicast address. |
| 642 | * By definition the broadcast address is also a multicast address. |
| 643 | */ |
| 644 | static inline int is_multicast_ether_addr(const u8 *addr) |
| 645 | { |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 646 | return 0x01 & addr[0]; |
Mike Rapoport | 50cca8b | 2007-08-12 08:48:27 +0300 | [diff] [blame] | 647 | } |
| 648 | |
Remy Bohmer | 23cd138 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 649 | /* |
| 650 | * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast |
| 651 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 652 | * |
| 653 | * Return true if the address is the broadcast address. |
| 654 | */ |
| 655 | static inline int is_broadcast_ether_addr(const u8 *addr) |
| 656 | { |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 657 | return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == |
| 658 | 0xff; |
Remy Bohmer | 23cd138 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 659 | } |
| 660 | |
| 661 | /* |
Mike Frysinger | 75edebe | 2009-01-27 16:53:39 -0500 | [diff] [blame] | 662 | * is_valid_ether_addr - Determine if the given Ethernet address is valid |
| 663 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 664 | * |
| 665 | * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not |
| 666 | * a multicast address, and is not FF:FF:FF:FF:FF:FF. |
| 667 | * |
| 668 | * Return true if the address is valid. |
| 669 | */ |
Remy Bohmer | 23cd138 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 670 | static inline int is_valid_ether_addr(const u8 *addr) |
Mike Frysinger | 75edebe | 2009-01-27 16:53:39 -0500 | [diff] [blame] | 671 | { |
| 672 | /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to |
| 673 | * explicitly check for it here. */ |
| 674 | return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); |
| 675 | } |
| 676 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 677 | /* Convert an IP address to a string */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 678 | extern void ip_to_string(IPaddr_t x, char *s); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 679 | |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 680 | /* Convert a string to ip address */ |
Mike Frysinger | 908c6b6 | 2010-10-20 07:16:58 -0400 | [diff] [blame] | 681 | extern IPaddr_t string_to_ip(const char *s); |
wdenk | 73a8b27 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 682 | |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 683 | /* Convert a VLAN id to a string */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 684 | extern void VLAN_to_string(ushort x, char *s); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 685 | |
| 686 | /* Convert a string to a vlan id */ |
Mike Frysinger | 2e3ef6e | 2010-10-20 07:16:48 -0400 | [diff] [blame] | 687 | extern ushort string_to_VLAN(const char *s); |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 688 | |
wdenk | a3d991b | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 689 | /* read a VLAN id from an environment variable */ |
| 690 | extern ushort getenv_VLAN(char *); |
| 691 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 692 | /* copy a filename (allow for "..." notation, limit length) */ |
Joe Hershberger | b28e28b | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 693 | extern void copy_filename(char *dst, const char *src, int size); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 694 | |
Mike Frysinger | 91b469c | 2009-09-02 04:18:55 -0400 | [diff] [blame] | 695 | /* get a random source port */ |
| 696 | extern unsigned int random_port(void); |
| 697 | |
Simon Glass | ea5427e | 2013-05-15 06:23:54 +0000 | [diff] [blame] | 698 | /* Update U-Boot over TFTP */ |
| 699 | extern int update_tftp(ulong addr); |
| 700 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 701 | /**********************************************************************/ |
| 702 | |
| 703 | #endif /* __NET_H__ */ |