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 | 7a428cc | 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 | 7a428cc | 2003-06-15 22:40:42 +0000 | [diff] [blame] | 17 | #endif /* CONFIG_8xx */ |
wdenk | eda4208 | 2003-01-17 16:27:01 +0000 | [diff] [blame] | 18 | |
Eric Nelson | 23343a1 | 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 | |
| 22 | |
| 23 | /* |
| 24 | * The number of receive packet buffers, and the required packet buffer |
| 25 | * alignment in memory. |
| 26 | * |
| 27 | */ |
| 28 | |
Jean-Christophe PLAGNIOL-VILLARD | 0383694 | 2008-10-16 15:01:15 +0200 | [diff] [blame] | 29 | #ifdef CONFIG_SYS_RX_ETH_BUFFER |
| 30 | # define PKTBUFSRX CONFIG_SYS_RX_ETH_BUFFER |
wdenk | 2582f6b | 2002-11-11 21:14:20 +0000 | [diff] [blame] | 31 | #else |
stroese | 14331ad | 2003-06-05 15:38:29 +0000 | [diff] [blame] | 32 | # define PKTBUFSRX 4 |
wdenk | 2582f6b | 2002-11-11 21:14:20 +0000 | [diff] [blame] | 33 | #endif |
| 34 | |
Eric Nelson | 23343a1 | 2012-03-15 18:33:24 +0000 | [diff] [blame] | 35 | #define PKTALIGN ARCH_DMA_MINALIGN |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 36 | |
Matthias Weisser | 6cc6326 | 2011-12-03 03:29:44 +0000 | [diff] [blame] | 37 | /* IPv4 addresses are always 32 bits in size */ |
| 38 | typedef u32 IPaddr_t; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 39 | |
| 40 | |
Luca Ceresoli | 428ab36 | 2011-04-18 06:19:50 +0000 | [diff] [blame] | 41 | /** |
| 42 | * An incoming packet handler. |
| 43 | * @param pkt pointer to the application packet |
| 44 | * @param dport destination UDP port |
| 45 | * @param sip source IP address |
| 46 | * @param sport source UDP port |
| 47 | * @param len packet length |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 48 | */ |
Luca Ceresoli | 428ab36 | 2011-04-18 06:19:50 +0000 | [diff] [blame] | 49 | typedef void rxhand_f(uchar *pkt, unsigned dport, |
| 50 | IPaddr_t sip, unsigned sport, |
| 51 | unsigned len); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 52 | |
Simon Glass | 230467c | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 53 | /** |
| 54 | * An incoming ICMP packet handler. |
| 55 | * @param type ICMP type |
| 56 | * @param code ICMP code |
| 57 | * @param dport destination UDP port |
| 58 | * @param sip source IP address |
| 59 | * @param sport source UDP port |
| 60 | * @param pkt pointer to the ICMP packet data |
| 61 | * @param len packet length |
| 62 | */ |
| 63 | typedef void rxhand_icmp_f(unsigned type, unsigned code, unsigned dport, |
| 64 | IPaddr_t sip, unsigned sport, uchar *pkt, unsigned len); |
| 65 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 66 | /* |
| 67 | * A timeout handler. Called after time interval has expired. |
| 68 | */ |
| 69 | typedef void thand_f(void); |
| 70 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 71 | enum eth_state_t { |
| 72 | ETH_STATE_INIT, |
| 73 | ETH_STATE_PASSIVE, |
| 74 | ETH_STATE_ACTIVE |
| 75 | }; |
| 76 | |
| 77 | struct eth_device { |
Mike Frysinger | 6b300dc | 2011-11-10 14:11:04 +0000 | [diff] [blame] | 78 | char name[16]; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 79 | unsigned char enetaddr[6]; |
| 80 | int iobase; |
| 81 | int state; |
| 82 | |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 83 | int (*init) (struct eth_device *, bd_t *); |
| 84 | int (*send) (struct eth_device *, void *packet, int length); |
| 85 | int (*recv) (struct eth_device *); |
| 86 | void (*halt) (struct eth_device *); |
David Updegraff | 7280da7 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 87 | #ifdef CONFIG_MCAST_TFTP |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 88 | int (*mcast) (struct eth_device *, u32 ip, u8 set); |
David Updegraff | 7280da7 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 89 | #endif |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 90 | int (*write_hwaddr) (struct eth_device *); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 91 | struct eth_device *next; |
Michael Walle | 391da4c | 2011-10-27 11:31:35 +0000 | [diff] [blame] | 92 | int index; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 93 | void *priv; |
| 94 | }; |
| 95 | |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 96 | extern int eth_initialize(bd_t *bis); /* Initialize network subsystem */ |
| 97 | extern int eth_register(struct eth_device* dev);/* Register network device */ |
Vincent Palatin | 451be50 | 2012-01-09 08:32:36 +0000 | [diff] [blame] | 98 | extern int eth_unregister(struct eth_device *dev);/* Remove network device */ |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 99 | extern void eth_try_another(int first_restart); /* Change the device */ |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 100 | extern void eth_set_current(void); /* set nterface to ethcur var */ |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 101 | extern struct eth_device *eth_get_dev(void); /* get the current device MAC */ |
Ben Warren | 97824d6 | 2010-07-29 12:56:11 -0700 | [diff] [blame] | 102 | extern struct eth_device *eth_get_dev_by_name(const char *devname); |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 103 | extern struct eth_device *eth_get_dev_by_index(int index); /* get dev @ index */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 104 | extern int eth_get_dev_index(void); /* get the device index */ |
Mike Frysinger | c34319c | 2009-01-29 19:43:44 -0500 | [diff] [blame] | 105 | extern void eth_parse_enetaddr(const char *addr, uchar *enetaddr); |
| 106 | extern int eth_getenv_enetaddr(char *name, uchar *enetaddr); |
| 107 | extern int eth_setenv_enetaddr(char *name, const uchar *enetaddr); |
Simon Glass | 62b36c9 | 2011-06-13 16:13:10 -0700 | [diff] [blame] | 108 | |
| 109 | /* |
| 110 | * Get the hardware address for an ethernet interface . |
| 111 | * Args: |
| 112 | * base_name - base name for device (normally "eth") |
| 113 | * index - device index number (0 for first) |
| 114 | * enetaddr - returns 6 byte hardware address |
| 115 | * Returns: |
| 116 | * Return true if the address is valid. |
| 117 | */ |
| 118 | extern int eth_getenv_enetaddr_by_index(const char *base_name, int index, |
| 119 | uchar *enetaddr); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 120 | |
Remy Bohmer | df06344 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 121 | extern int usb_eth_initialize(bd_t *bi); |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 122 | extern int eth_init(bd_t *bis); /* Initialize the device */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 123 | extern int eth_send(void *packet, int length); /* Send a packet */ |
Remy Bohmer | df06344 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 124 | |
Rafal Jaworowski | 1f2c9a4 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 125 | #ifdef CONFIG_API |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 126 | extern int eth_receive(void *packet, int length); /* Receive a packet*/ |
| 127 | extern void (*push_packet)(void *packet, int length); |
Rafal Jaworowski | 1f2c9a4 | 2007-12-27 18:19:02 +0100 | [diff] [blame] | 128 | #endif |
Andy Fleming | ecfb987 | 2009-02-11 15:10:31 -0600 | [diff] [blame] | 129 | extern int eth_rx(void); /* Check for received packets */ |
| 130 | extern void eth_halt(void); /* stop SCC */ |
| 131 | extern char *eth_get_name(void); /* get name of current device */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 132 | |
Simon Glass | 62b36c9 | 2011-06-13 16:13:10 -0700 | [diff] [blame] | 133 | /* |
| 134 | * Set the hardware address for an ethernet interface based on 'eth%daddr' |
| 135 | * environment variable (or just 'ethaddr' if eth_number is 0). |
| 136 | * Args: |
| 137 | * base_name - base name for device (normally "eth") |
| 138 | * eth_number - value of %d (0 for first device of this type) |
| 139 | * Returns: |
| 140 | * 0 is success, non-zero is error status from driver. |
| 141 | */ |
| 142 | int eth_write_hwaddr(struct eth_device *dev, const char *base_name, |
| 143 | int eth_number); |
| 144 | |
David Updegraff | 7280da7 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 145 | #ifdef CONFIG_MCAST_TFTP |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 146 | int eth_mcast_join(IPaddr_t mcast_addr, u8 join); |
| 147 | u32 ether_crc(size_t len, unsigned char const *p); |
David Updegraff | 7280da7 | 2007-06-11 10:41:07 -0500 | [diff] [blame] | 148 | #endif |
| 149 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 150 | |
| 151 | /**********************************************************************/ |
| 152 | /* |
| 153 | * Protocol headers. |
| 154 | */ |
| 155 | |
| 156 | /* |
| 157 | * Ethernet header |
| 158 | */ |
| 159 | typedef struct { |
| 160 | uchar et_dest[6]; /* Destination node */ |
| 161 | uchar et_src[6]; /* Source node */ |
| 162 | ushort et_protlen; /* Protocol or length */ |
| 163 | uchar et_dsap; /* 802 DSAP */ |
| 164 | uchar et_ssap; /* 802 SSAP */ |
| 165 | uchar et_ctl; /* 802 control */ |
| 166 | uchar et_snap1; /* SNAP */ |
| 167 | uchar et_snap2; |
| 168 | uchar et_snap3; |
| 169 | ushort et_prot; /* 802 protocol */ |
| 170 | } Ethernet_t; |
| 171 | |
| 172 | #define ETHER_HDR_SIZE 14 /* Ethernet header size */ |
| 173 | #define E802_HDR_SIZE 22 /* 802 ethernet header size */ |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 174 | |
| 175 | /* |
| 176 | * Ethernet header |
| 177 | */ |
| 178 | typedef struct { |
| 179 | uchar vet_dest[6]; /* Destination node */ |
| 180 | uchar vet_src[6]; /* Source node */ |
| 181 | ushort vet_vlan_type; /* PROT_VLAN */ |
| 182 | ushort vet_tag; /* TAG of VLAN */ |
| 183 | ushort vet_type; /* protocol type */ |
| 184 | } VLAN_Ethernet_t; |
| 185 | |
| 186 | #define VLAN_ETHER_HDR_SIZE 18 /* VLAN Ethernet header size */ |
| 187 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 188 | #define PROT_IP 0x0800 /* IP protocol */ |
| 189 | #define PROT_ARP 0x0806 /* IP ARP protocol */ |
| 190 | #define PROT_RARP 0x8035 /* IP ARP protocol */ |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 191 | #define PROT_VLAN 0x8100 /* IEEE 802.1q protocol */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 192 | |
| 193 | #define IPPROTO_ICMP 1 /* Internet Control Message Protocol */ |
| 194 | #define IPPROTO_UDP 17 /* User Datagram Protocol */ |
| 195 | |
| 196 | /* |
| 197 | * Internet Protocol (IP) header. |
| 198 | */ |
| 199 | typedef struct { |
| 200 | uchar ip_hl_v; /* header length and version */ |
| 201 | uchar ip_tos; /* type of service */ |
| 202 | ushort ip_len; /* total length */ |
| 203 | ushort ip_id; /* identification */ |
| 204 | ushort ip_off; /* fragment offset field */ |
| 205 | uchar ip_ttl; /* time to live */ |
| 206 | uchar ip_p; /* protocol */ |
| 207 | ushort ip_sum; /* checksum */ |
| 208 | IPaddr_t ip_src; /* Source IP address */ |
| 209 | IPaddr_t ip_dst; /* Destination IP address */ |
| 210 | ushort udp_src; /* UDP source port */ |
| 211 | ushort udp_dst; /* UDP destination port */ |
| 212 | ushort udp_len; /* Length of UDP packet */ |
| 213 | ushort udp_xsum; /* Checksum */ |
| 214 | } IP_t; |
| 215 | |
Peter Tyser | 0885bf0 | 2008-12-01 16:26:20 -0600 | [diff] [blame] | 216 | #define IP_OFFS 0x1fff /* ip offset *= 8 */ |
| 217 | #define IP_FLAGS 0xe000 /* first 3 bits */ |
| 218 | #define IP_FLAGS_RES 0x8000 /* reserved */ |
| 219 | #define IP_FLAGS_DFRAG 0x4000 /* don't fragments */ |
| 220 | #define IP_FLAGS_MFRAG 0x2000 /* more fragments */ |
| 221 | |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 222 | #define IP_HDR_SIZE_NO_UDP (sizeof(IP_t) - 8) |
| 223 | #define IP_HDR_SIZE (sizeof(IP_t)) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 224 | |
| 225 | |
| 226 | /* |
| 227 | * Address Resolution Protocol (ARP) header. |
| 228 | */ |
| 229 | typedef struct |
| 230 | { |
| 231 | ushort ar_hrd; /* Format of hardware address */ |
| 232 | # define ARP_ETHER 1 /* Ethernet hardware address */ |
| 233 | ushort ar_pro; /* Format of protocol address */ |
| 234 | uchar ar_hln; /* Length of hardware address */ |
| 235 | uchar ar_pln; /* Length of protocol address */ |
| 236 | ushort ar_op; /* Operation */ |
| 237 | # define ARPOP_REQUEST 1 /* Request to resolve address */ |
| 238 | # define ARPOP_REPLY 2 /* Response to previous request */ |
| 239 | |
| 240 | # define RARPOP_REQUEST 3 /* Request to resolve address */ |
| 241 | # define RARPOP_REPLY 4 /* Response to previous request */ |
| 242 | |
| 243 | /* |
wdenk | 57b2d80 | 2003-06-27 21:31:46 +0000 | [diff] [blame] | 244 | * The remaining fields are variable in size, according to |
| 245 | * the sizes above, and are defined as appropriate for |
| 246 | * specific hardware/protocol combinations. |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 247 | */ |
| 248 | uchar ar_data[0]; |
| 249 | #if 0 |
| 250 | uchar ar_sha[]; /* Sender hardware address */ |
| 251 | uchar ar_spa[]; /* Sender protocol address */ |
| 252 | uchar ar_tha[]; /* Target hardware address */ |
| 253 | uchar ar_tpa[]; /* Target protocol address */ |
| 254 | #endif /* 0 */ |
| 255 | } ARP_t; |
| 256 | |
| 257 | #define ARP_HDR_SIZE (8+20) /* Size assuming ethernet */ |
| 258 | |
| 259 | /* |
| 260 | * ICMP stuff (just enough to handle (host) redirect messages) |
| 261 | */ |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 262 | #define ICMP_ECHO_REPLY 0 /* Echo reply */ |
Simon Glass | 230467c | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 263 | #define ICMP_NOT_REACH 3 /* Detination unreachable */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 264 | #define ICMP_REDIRECT 5 /* Redirect (change route) */ |
wdenk | e6466f6 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 265 | #define ICMP_ECHO_REQUEST 8 /* Echo request */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 266 | |
| 267 | /* Codes for REDIRECT. */ |
| 268 | #define ICMP_REDIR_NET 0 /* Redirect Net */ |
| 269 | #define ICMP_REDIR_HOST 1 /* Redirect Host */ |
| 270 | |
Simon Glass | 230467c | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 271 | /* Codes for NOT_REACH */ |
| 272 | #define ICMP_NOT_REACH_PORT 3 /* Port unreachable */ |
| 273 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 274 | typedef struct icmphdr { |
| 275 | uchar type; |
| 276 | uchar code; |
| 277 | ushort checksum; |
| 278 | union { |
| 279 | struct { |
| 280 | ushort id; |
| 281 | ushort sequence; |
| 282 | } echo; |
| 283 | ulong gateway; |
| 284 | struct { |
| 285 | ushort __unused; |
| 286 | ushort mtu; |
| 287 | } frag; |
Simon Glass | 230467c | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 288 | uchar data[0]; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 289 | } un; |
| 290 | } ICMP_t; |
| 291 | |
| 292 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 293 | /* |
| 294 | * Maximum packet size; used to allocate packet storage. |
| 295 | * TFTP packets can be 524 bytes + IP header + ethernet header. |
| 296 | * Lets be conservative, and go for 38 * 16. (Must also be |
| 297 | * a multiple of 32 bytes). |
| 298 | */ |
| 299 | /* |
| 300 | * AS.HARNOIS : Better to set PKTSIZE to maximum size because |
| 301 | * traffic type is not always controlled |
| 302 | * maximum packet size = 1518 |
| 303 | * maximum packet size and multiple of 32 bytes = 1536 |
| 304 | */ |
| 305 | #define PKTSIZE 1518 |
| 306 | #define PKTSIZE_ALIGN 1536 |
| 307 | /*#define PKTSIZE 608*/ |
| 308 | |
| 309 | /* |
| 310 | * Maximum receive ring size; that is, the number of packets |
| 311 | * we can buffer before overflow happens. Basically, this just |
| 312 | * needs to be enough to prevent a packet being discarded while |
| 313 | * we are processing the previous one. |
| 314 | */ |
| 315 | #define RINGSZ 4 |
| 316 | #define RINGSZ_LOG2 2 |
| 317 | |
| 318 | /**********************************************************************/ |
| 319 | /* |
| 320 | * Globals. |
| 321 | * |
| 322 | * Note: |
| 323 | * |
| 324 | * All variables of type IPaddr_t are stored in NETWORK byte order |
| 325 | * (big endian). |
| 326 | */ |
| 327 | |
| 328 | /* net.c */ |
| 329 | /** BOOTP EXTENTIONS **/ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 330 | extern IPaddr_t NetOurGatewayIP; /* Our gateway IP address */ |
| 331 | extern IPaddr_t NetOurSubnetMask; /* Our subnet mask (0 = unknown) */ |
| 332 | extern IPaddr_t NetOurDNSIP; /* Our Domain Name Server (0 = unknown) */ |
Jon Loeliger | 5336a76 | 2007-07-09 22:08:34 -0500 | [diff] [blame] | 333 | #if defined(CONFIG_BOOTP_DNS2) |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 334 | extern IPaddr_t NetOurDNS2IP; /* Our 2nd Domain Name Server (0 = unknown) */ |
stroese | e0aadfb | 2003-08-28 14:17:32 +0000 | [diff] [blame] | 335 | #endif |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 336 | extern char NetOurNISDomain[32]; /* Our NIS domain */ |
| 337 | extern char NetOurHostName[32]; /* Our hostname */ |
| 338 | extern char NetOurRootPath[64]; /* Our root path */ |
| 339 | extern ushort NetBootFileSize; /* Our boot file size in blocks */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 340 | /** END OF BOOTP EXTENTIONS **/ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 341 | extern ulong NetBootFileXferSize; /* size of bootfile in bytes */ |
| 342 | extern uchar NetOurEther[6]; /* Our ethernet address */ |
| 343 | extern uchar NetServerEther[6]; /* Boot server enet address */ |
| 344 | extern IPaddr_t NetOurIP; /* Our IP addr (0 = unknown) */ |
| 345 | extern IPaddr_t NetServerIP; /* Server IP addr (0 = unknown) */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 346 | extern uchar *NetTxPacket; /* THE transmit packet */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 347 | extern uchar *NetRxPackets[PKTBUFSRX]; /* Receive packets */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 348 | extern uchar *NetRxPacket; /* Current receive packet */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 349 | extern int NetRxPacketLen; /* Current rx packet length */ |
| 350 | extern unsigned NetIPID; /* IP ID (counting) */ |
| 351 | extern uchar NetBcastAddr[6]; /* Ethernet boardcast address */ |
wdenk | b8fb619 | 2004-08-02 21:11:11 +0000 | [diff] [blame] | 352 | extern uchar NetEtherNullAddr[6]; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 353 | |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 354 | #define VLAN_NONE 4095 /* untagged */ |
| 355 | #define VLAN_IDMASK 0x0fff /* mask of valid vlan id */ |
| 356 | extern ushort NetOurVLAN; /* Our VLAN */ |
| 357 | extern ushort NetOurNativeVLAN; /* Our Native VLAN */ |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 358 | |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 359 | extern uchar NetCDPAddr[6]; /* Ethernet CDP address */ |
| 360 | extern ushort CDPNativeVLAN; /* CDP returned native VLAN */ |
| 361 | extern ushort CDPApplianceVLAN; /* CDP returned appliance VLAN */ |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 362 | |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 363 | extern int NetState; /* Network loop state */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 364 | #define NETLOOP_CONTINUE 1 |
| 365 | #define NETLOOP_RESTART 2 |
| 366 | #define NETLOOP_SUCCESS 3 |
| 367 | #define NETLOOP_FAIL 4 |
| 368 | |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 369 | extern int NetRestartWrap; /* Tried all network devices */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 370 | |
Simon Glass | d6c5f55 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 371 | enum proto_t { |
| 372 | BOOTP, RARP, ARP, TFTPGET, DHCP, PING, DNS, NFS, CDP, NETCONS, SNTP, |
Simon Glass | f59675a | 2011-10-24 18:00:05 +0000 | [diff] [blame] | 373 | TFTPSRV, TFTPPUT |
Simon Glass | d6c5f55 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 374 | }; |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 375 | |
| 376 | /* from net/net.c */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 377 | extern char BootFile[128]; /* Boot File name */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 378 | |
Robin Getz | 82f0d23 | 2009-07-20 14:53:54 -0400 | [diff] [blame] | 379 | #if defined(CONFIG_CMD_DNS) |
| 380 | extern char *NetDNSResolve; /* The host to resolve */ |
| 381 | extern char *NetDNSenvvar; /* the env var to put the ip into */ |
| 382 | #endif |
| 383 | |
Jon Loeliger | 2517d97 | 2007-07-09 17:15:49 -0500 | [diff] [blame] | 384 | #if defined(CONFIG_CMD_PING) |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 385 | extern IPaddr_t NetPingIP; /* the ip address to ping */ |
wdenk | e6466f6 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 386 | #endif |
| 387 | |
Jon Loeliger | 2517d97 | 2007-07-09 17:15:49 -0500 | [diff] [blame] | 388 | #if defined(CONFIG_CMD_CDP) |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 389 | /* when CDP completes these hold the return values */ |
| 390 | extern ushort CDPNativeVLAN; |
| 391 | extern ushort CDPApplianceVLAN; |
| 392 | #endif |
| 393 | |
Jon Loeliger | 2517d97 | 2007-07-09 17:15:49 -0500 | [diff] [blame] | 394 | #if defined(CONFIG_CMD_SNTP) |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 395 | extern IPaddr_t NetNtpServerIP; /* the ip address to NTP */ |
| 396 | extern int NetTimeOffset; /* offset time from UTC */ |
wdenk | b4ad962 | 2005-04-01 00:25:43 +0000 | [diff] [blame] | 397 | #endif |
| 398 | |
Joe Hershberger | 3a29e5a | 2012-05-15 08:59:12 +0000 | [diff] [blame^] | 399 | #if defined(CONFIG_MCAST_TFTP) |
| 400 | extern IPaddr_t Mcast_addr; |
| 401 | #endif |
| 402 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 403 | /* Initialize the network adapter */ |
Simon Glass | d6c5f55 | 2011-10-24 18:00:02 +0000 | [diff] [blame] | 404 | extern int NetLoop(enum proto_t); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 405 | |
| 406 | /* Shutdown adapters and cleanup */ |
| 407 | extern void NetStop(void); |
| 408 | |
| 409 | /* Load failed. Start again. */ |
| 410 | extern void NetStartAgain(void); |
| 411 | |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 412 | /* Get size of the ethernet header when we send */ |
Wolfgang Denk | a1be476 | 2008-05-20 16:00:29 +0200 | [diff] [blame] | 413 | extern int NetEthHdrSize(void); |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 414 | |
| 415 | /* Set ethernet header; returns the size of the header */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 416 | extern int NetSetEther(uchar *, uchar *, uint); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 417 | |
| 418 | /* Set IP header */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 419 | extern void NetSetIP(uchar *, IPaddr_t, int, int, int); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 420 | |
| 421 | /* Checksum */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 422 | extern int NetCksumOk(uchar *, int); /* Return true if cksum OK */ |
| 423 | extern uint NetCksum(uchar *, int); /* Calculate the checksum */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 424 | |
| 425 | /* Set callbacks */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 426 | extern void NetSetHandler(rxhand_f *); /* Set RX packet handler */ |
Simon Glass | 230467c | 2011-10-24 18:00:01 +0000 | [diff] [blame] | 427 | extern void net_set_icmp_handler(rxhand_icmp_f *f); /* Set ICMP RX handler */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 428 | extern void NetSetTimeout(ulong, thand_f *);/* Set timeout handler */ |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 429 | |
| 430 | /* Transmit "NetTxPacket" */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 431 | extern void NetSendPacket(uchar *, int); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 432 | |
wdenk | e6466f6 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 433 | /* Transmit UDP packet, performing ARP request if needed */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 434 | extern int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, |
| 435 | int sport, int len); |
wdenk | e6466f6 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 436 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 437 | /* Processes a received packet */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 438 | extern void NetReceive(uchar *, int); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 439 | |
Joe Hershberger | 77001b43 | 2012-05-15 08:59:08 +0000 | [diff] [blame] | 440 | #ifdef CONFIG_NETCONSOLE |
| 441 | void NcStart(void); |
| 442 | int nc_input_packet(uchar *pkt, unsigned dest, unsigned src, unsigned len); |
| 443 | #endif |
| 444 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 445 | /* |
Simon Glass | 5234ad1 | 2011-10-27 06:24:32 +0000 | [diff] [blame] | 446 | * Check if autoload is enabled. If so, use either NFS or TFTP to download |
| 447 | * the boot file. |
| 448 | */ |
| 449 | void net_auto_load(void); |
| 450 | |
| 451 | /* |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 452 | * The following functions are a bit ugly, but necessary to deal with |
| 453 | * alignment restrictions on ARM. |
| 454 | * |
| 455 | * We're using inline functions, which had the smallest memory |
| 456 | * footprint in our tests. |
| 457 | */ |
| 458 | /* return IP *in network byteorder* */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 459 | static inline IPaddr_t NetReadIP(void *from) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 460 | { |
| 461 | IPaddr_t ip; |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 462 | |
| 463 | memcpy((void *)&ip, (void *)from, sizeof(ip)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 464 | return ip; |
| 465 | } |
| 466 | |
| 467 | /* return ulong *in network byteorder* */ |
| 468 | static inline ulong NetReadLong(ulong *from) |
| 469 | { |
| 470 | ulong l; |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 471 | |
| 472 | memcpy((void *)&l, (void *)from, sizeof(l)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 473 | return l; |
| 474 | } |
| 475 | |
| 476 | /* write IP *in network byteorder* */ |
| 477 | static inline void NetWriteIP(void *to, IPaddr_t ip) |
| 478 | { |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 479 | memcpy(to, (void *)&ip, sizeof(ip)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 480 | } |
| 481 | |
| 482 | /* copy IP */ |
Joe Hershberger | 4b7747e | 2012-05-15 08:59:04 +0000 | [diff] [blame] | 483 | static inline void NetCopyIP(void *to, void *from) |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 484 | { |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 485 | memcpy((void *)to, from, sizeof(IPaddr_t)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 486 | } |
| 487 | |
| 488 | /* copy ulong */ |
| 489 | static inline void NetCopyLong(ulong *to, ulong *from) |
| 490 | { |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 491 | memcpy((void *)to, (void *)from, sizeof(ulong)); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 492 | } |
| 493 | |
Mike Rapoport | e54d6c1 | 2007-08-12 08:48:27 +0300 | [diff] [blame] | 494 | /** |
| 495 | * is_zero_ether_addr - Determine if give Ethernet address is all zeros. |
| 496 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 497 | * |
| 498 | * Return true if the address is all zeroes. |
| 499 | */ |
| 500 | static inline int is_zero_ether_addr(const u8 *addr) |
| 501 | { |
| 502 | return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]); |
| 503 | } |
| 504 | |
| 505 | /** |
| 506 | * is_multicast_ether_addr - Determine if the Ethernet address is a multicast. |
| 507 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 508 | * |
| 509 | * Return true if the address is a multicast address. |
| 510 | * By definition the broadcast address is also a multicast address. |
| 511 | */ |
| 512 | static inline int is_multicast_ether_addr(const u8 *addr) |
| 513 | { |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 514 | return 0x01 & addr[0]; |
Mike Rapoport | e54d6c1 | 2007-08-12 08:48:27 +0300 | [diff] [blame] | 515 | } |
| 516 | |
Remy Bohmer | df06344 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 517 | /* |
| 518 | * is_broadcast_ether_addr - Determine if the Ethernet address is broadcast |
| 519 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 520 | * |
| 521 | * Return true if the address is the broadcast address. |
| 522 | */ |
| 523 | static inline int is_broadcast_ether_addr(const u8 *addr) |
| 524 | { |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 525 | return (addr[0] & addr[1] & addr[2] & addr[3] & addr[4] & addr[5]) == |
| 526 | 0xff; |
Remy Bohmer | df06344 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 527 | } |
| 528 | |
| 529 | /* |
Mike Frysinger | 2a02f5c | 2009-01-27 16:53:39 -0500 | [diff] [blame] | 530 | * is_valid_ether_addr - Determine if the given Ethernet address is valid |
| 531 | * @addr: Pointer to a six-byte array containing the Ethernet address |
| 532 | * |
| 533 | * Check that the Ethernet address (MAC) is not 00:00:00:00:00:00, is not |
| 534 | * a multicast address, and is not FF:FF:FF:FF:FF:FF. |
| 535 | * |
| 536 | * Return true if the address is valid. |
| 537 | */ |
Remy Bohmer | df06344 | 2009-07-29 18:18:43 +0200 | [diff] [blame] | 538 | static inline int is_valid_ether_addr(const u8 *addr) |
Mike Frysinger | 2a02f5c | 2009-01-27 16:53:39 -0500 | [diff] [blame] | 539 | { |
| 540 | /* FF:FF:FF:FF:FF:FF is a multicast address so we don't need to |
| 541 | * explicitly check for it here. */ |
| 542 | return !is_multicast_ether_addr(addr) && !is_zero_ether_addr(addr); |
| 543 | } |
| 544 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 545 | /* Convert an IP address to a string */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 546 | extern void ip_to_string(IPaddr_t x, char *s); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 547 | |
wdenk | e6466f6 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 548 | /* Convert a string to ip address */ |
Mike Frysinger | bb1ecce | 2010-10-20 07:16:58 -0400 | [diff] [blame] | 549 | extern IPaddr_t string_to_ip(const char *s); |
wdenk | e6466f6 | 2003-06-05 19:27:42 +0000 | [diff] [blame] | 550 | |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 551 | /* Convert a VLAN id to a string */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 552 | extern void VLAN_to_string(ushort x, char *s); |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 553 | |
| 554 | /* Convert a string to a vlan id */ |
Mike Frysinger | 89c7392 | 2010-10-20 07:16:48 -0400 | [diff] [blame] | 555 | extern ushort string_to_VLAN(const char *s); |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 556 | |
wdenk | 145d2c1 | 2004-04-15 21:48:45 +0000 | [diff] [blame] | 557 | /* read a VLAN id from an environment variable */ |
| 558 | extern ushort getenv_VLAN(char *); |
| 559 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 560 | /* copy a filename (allow for "..." notation, limit length) */ |
Joe Hershberger | 290549f | 2012-05-15 08:59:05 +0000 | [diff] [blame] | 561 | extern void copy_filename(char *dst, const char *src, int size); |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 562 | |
Mike Frysinger | 59cb1e7 | 2009-09-02 04:18:55 -0400 | [diff] [blame] | 563 | /* get a random source port */ |
| 564 | extern unsigned int random_port(void); |
| 565 | |
wdenk | 2d96695 | 2002-10-31 22:12:35 +0000 | [diff] [blame] | 566 | /**********************************************************************/ |
| 567 | |
| 568 | #endif /* __NET_H__ */ |