X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;ds=inline;f=net%2Fnet.c;h=6db2b9c08e804cb613b8d65a5a1c837de83e6d91;hb=0adb5b761f4c789ae47d8abb015f5e017263d3f2;hp=0f7625fde1dc52de2df5fb3ecd91589db24c7c56;hpb=dab5e3469d294a4e1ffed8407d296a78e02cc01f;p=u-boot diff --git a/net/net.c b/net/net.c index 0f7625fde1..6db2b9c08e 100644 --- a/net/net.c +++ b/net/net.c @@ -6,6 +6,7 @@ * Copyright 2000 Roland Borde * Copyright 2000 Paolo Scaffardi * Copyright 2000-2002 Wolfgang Denk, wd@denx.de + * SPDX-License-Identifier: GPL-2.0 */ /* @@ -83,6 +84,7 @@ #include #include #include +#include #include #if defined(CONFIG_STATUS_LED) #include @@ -110,40 +112,30 @@ DECLARE_GLOBAL_DATA_PTR; /** BOOTP EXTENTIONS **/ /* Our subnet mask (0=unknown) */ -IPaddr_t NetOurSubnetMask; +struct in_addr net_netmask; /* Our gateways IP address */ -IPaddr_t NetOurGatewayIP; +struct in_addr net_gateway; /* Our DNS IP address */ -IPaddr_t NetOurDNSIP; +struct in_addr net_dns_server; #if defined(CONFIG_BOOTP_DNS2) /* Our 2nd DNS IP address */ -IPaddr_t NetOurDNS2IP; +struct in_addr net_dns_server2; #endif -/* Our NIS domain */ -char NetOurNISDomain[32] = {0,}; -/* Our hostname */ -char NetOurHostName[32] = {0,}; -/* Our bootpath */ -char NetOurRootPath[64] = {0,}; -/* Our bootfile size in blocks */ -ushort NetBootFileSize; #ifdef CONFIG_MCAST_TFTP /* Multicast TFTP */ -IPaddr_t Mcast_addr; +struct in_addr net_mcast_addr; #endif /** END OF BOOTP EXTENTIONS **/ -/* The actual transferred size of the bootfile (in bytes) */ -ulong NetBootFileXferSize; /* Our ethernet address */ -uchar NetOurEther[6]; +u8 net_ethaddr[6]; /* Boot server enet address */ -uchar NetServerEther[6]; +u8 net_server_ethaddr[6]; /* Our IP addr (0 = unknown) */ -IPaddr_t NetOurIP; +struct in_addr net_ip; /* Server IP addr (0 = unknown) */ -IPaddr_t NetServerIP; +struct in_addr net_server_ip; /* Current receive packet */ uchar *NetRxPacket; /* Current rx packet length */ @@ -151,8 +143,8 @@ int NetRxPacketLen; /* IP packet ID */ unsigned NetIPID; /* Ethernet bcast address */ -uchar NetBcastAddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; -uchar NetEtherNullAddr[6]; +const u8 net_bcast_ethaddr[6] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff }; +const u8 net_null_ethaddr[6]; #ifdef CONFIG_API void (*push_packet)(void *, int len) = 0; #endif @@ -172,20 +164,27 @@ ushort NetOurVLAN = 0xFFFF; ushort NetOurNativeVLAN = 0xFFFF; /* Boot File name */ -char BootFile[128]; +char net_boot_file_name[128]; +/* The actual transferred size of the bootfile (in bytes) */ +u32 net_boot_file_size; +/* Boot file size in blocks as reported by the DHCP server */ +u32 net_boot_file_expected_size_in_blocks; #if defined(CONFIG_CMD_SNTP) /* NTP server IP address */ -IPaddr_t NetNtpServerIP; +struct in_addr net_ntp_server; /* offset time from UTC */ int NetTimeOffset; #endif static uchar PktBuf[(PKTBUFSRX+1) * PKTSIZE_ALIGN + PKTALIGN]; - +#ifdef CONFIG_DM_ETH +/* Receive packets */ +uchar *net_rx_packets[PKTBUFSRX]; +#else /* Receive packet */ uchar *NetRxPackets[PKTBUFSRX]; - +#endif /* Current UDP RX packet handler */ static rxhand_f *udp_packet_handler; /* Current ARP RX packet handler */ @@ -217,7 +216,8 @@ static int on_bootfile(const char *name, const char *value, enum env_op op, switch (op) { case env_op_create: case env_op_overwrite: - copy_filename(BootFile, value, sizeof(BootFile)); + copy_filename(net_boot_file_name, value, + sizeof(net_boot_file_name)); break; default: break; @@ -262,19 +262,19 @@ static void NetInitLoop(void) /* update only when the environment has changed */ if (env_changed_id != env_id) { - NetOurIP = getenv_IPaddr("ipaddr"); - NetOurGatewayIP = getenv_IPaddr("gatewayip"); - NetOurSubnetMask = getenv_IPaddr("netmask"); - NetServerIP = getenv_IPaddr("serverip"); + net_ip = getenv_ip("ipaddr"); + net_gateway = getenv_ip("gatewayip"); + net_netmask = getenv_ip("netmask"); + net_server_ip = getenv_ip("serverip"); NetOurNativeVLAN = getenv_VLAN("nvlan"); NetOurVLAN = getenv_VLAN("vlan"); #if defined(CONFIG_CMD_DNS) - NetOurDNSIP = getenv_IPaddr("dnsip"); + net_dns_server = getenv_ip("dnsip"); #endif env_changed_id = env_id; } if (eth_get_dev()) - memcpy(NetOurEther, eth_get_dev()->enetaddr, 6); + memcpy(net_ethaddr, eth_get_ethaddr(), 6); return; } @@ -303,9 +303,15 @@ void net_init(void) NetTxPacket = &PktBuf[0] + (PKTALIGN - 1); NetTxPacket -= (ulong)NetTxPacket % PKTALIGN; +#ifdef CONFIG_DM_ETH + for (i = 0; i < PKTBUFSRX; i++) { + net_rx_packets[i] = NetTxPacket + (i + 1) * + PKTSIZE_ALIGN; + } +#else for (i = 0; i < PKTBUFSRX; i++) NetRxPackets[i] = NetTxPacket + (i + 1) * PKTSIZE_ALIGN; - +#endif ArpInit(); net_clear_handlers(); @@ -323,8 +329,7 @@ void net_init(void) int NetLoop(enum proto_t protocol) { - bd_t *bd = gd->bd; - int ret = -1; + int ret = -EINVAL; NetRestarted = 0; NetDevExists = 0; @@ -336,12 +341,13 @@ int NetLoop(enum proto_t protocol) if (eth_is_on_demand_init() || protocol != NETCONS) { eth_halt(); eth_set_current(); - if (eth_init(bd) < 0) { + ret = eth_init(); + if (ret < 0) { eth_halt(); - return -1; + return ret; } } else - eth_init_state_only(bd); + eth_init_state_only(); restart: #ifdef CONFIG_USB_KEYBOARD @@ -361,7 +367,7 @@ restart: case 1: /* network not configured */ eth_halt(); - return -1; + return -ENODEV; case 2: /* network device not configured */ @@ -369,7 +375,7 @@ restart: case 0: NetDevExists = 1; - NetBootFileXferSize = 0; + net_boot_file_size = 0; switch (protocol) { case TFTPGET: #ifdef CONFIG_CMD_TFTPPUT @@ -385,22 +391,22 @@ restart: #endif #if defined(CONFIG_CMD_DHCP) case DHCP: - BootpTry = 0; - NetOurIP = 0; + BootpReset(); + net_ip.s_addr = 0; DhcpRequest(); /* Basically same as BOOTP */ break; #endif case BOOTP: - BootpTry = 0; - NetOurIP = 0; + BootpReset(); + net_ip.s_addr = 0; BootpRequest(); break; #if defined(CONFIG_CMD_RARP) case RARP: RarpTry = 0; - NetOurIP = 0; + net_ip.s_addr = 0; RarpRequest(); break; #endif @@ -475,6 +481,8 @@ restart: /* * Check the ethernet for a new packet. The ethernet * receive routine will process it. + * Most drivers return the most recent packet size, but not + * errors that may have happened. */ eth_rx(); @@ -483,7 +491,7 @@ restart: */ if (ctrlc()) { /* cancel any ARP that may not have completed */ - NetArpWaitPacketIP = 0; + net_arp_wait_packet_ip.s_addr = 0; net_cleanup_loop(); eth_halt(); @@ -527,6 +535,8 @@ restart: (*x)(); } + if (net_state == NETLOOP_FAIL) + ret = NetStartAgain(); switch (net_state) { @@ -536,11 +546,10 @@ restart: case NETLOOP_SUCCESS: net_cleanup_loop(); - if (NetBootFileXferSize > 0) { - printf("Bytes transferred = %ld (%lx hex)\n", - NetBootFileXferSize, - NetBootFileXferSize); - setenv_hex("filesize", NetBootFileXferSize); + if (net_boot_file_size > 0) { + printf("Bytes transferred = %d (%x hex)\n", + net_boot_file_size, net_boot_file_size); + setenv_hex("filesize", net_boot_file_size); setenv_hex("fileaddr", load_addr); } if (protocol != NETCONS) @@ -550,7 +559,7 @@ restart: eth_set_last_protocol(protocol); - ret = NetBootFileXferSize; + ret = net_boot_file_size; debug_cond(DEBUG_INT_STATE, "--- NetLoop Success!\n"); goto done; @@ -586,11 +595,12 @@ startAgainTimeout(void) net_set_state(NETLOOP_RESTART); } -void NetStartAgain(void) +int NetStartAgain(void) { char *nretry; int retry_forever = 0; unsigned long retrycnt = 0; + int ret; nretry = getenv("netretry"); if (nretry) { @@ -602,13 +612,19 @@ void NetStartAgain(void) retrycnt = 1; else retrycnt = simple_strtoul(nretry, NULL, 0); - } else - retry_forever = 1; + } else { + retrycnt = 0; + retry_forever = 0; + } if ((!retry_forever) && (NetTryCount >= retrycnt)) { eth_halt(); net_set_state(NETLOOP_FAIL); - return; + /* + * We don't provide a way for the protocol to return an error, + * but this is almost always the reason. + */ + return -ETIMEDOUT; } NetTryCount++; @@ -617,7 +633,7 @@ void NetStartAgain(void) #if !defined(CONFIG_NET_DO_NOT_TRY_ANOTHER) eth_try_another(!NetRestarted); #endif - eth_init(gd->bd); + ret = eth_init(); if (NetRestartWrap) { NetRestartWrap = 0; if (NetDevExists) { @@ -629,6 +645,7 @@ void NetStartAgain(void) } else { net_set_state(NETLOOP_RESTART); } + return ret; } /**********************************************************************/ @@ -637,7 +654,7 @@ void NetStartAgain(void) */ static void dummy_handler(uchar *pkt, unsigned dport, - IPaddr_t sip, unsigned sport, + struct in_addr sip, unsigned sport, unsigned len) { } @@ -693,7 +710,7 @@ NetSetTimeout(ulong iv, thand_f *f) } } -int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, +int NetSendUDPPacket(uchar *ether, struct in_addr dest, int dport, int sport, int payload_len) { uchar *pkt; @@ -706,12 +723,12 @@ int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, return -1; /* convert to new style broadcast */ - if (dest == 0) - dest = 0xFFFFFFFF; + if (dest.s_addr == 0) + dest.s_addr = 0xFFFFFFFF; /* if broadcast, make the ether address a broadcast and don't do ARP */ - if (dest == 0xFFFFFFFF) - ether = NetBcastAddr; + if (dest.s_addr == 0xFFFFFFFF) + ether = (uchar *)net_bcast_ethaddr; pkt = (uchar *)NetTxPacket; @@ -721,11 +738,11 @@ int NetSendUDPPacket(uchar *ether, IPaddr_t dest, int dport, int sport, pkt_hdr_size = eth_hdr_size + IP_UDP_HDR_SIZE; /* if MAC address was not discovered yet, do an ARP request */ - if (memcmp(ether, NetEtherNullAddr, 6) == 0) { + if (memcmp(ether, net_null_ethaddr, 6) == 0) { debug_cond(DEBUG_DEV_PKT, "sending ARP for %pI4\n", &dest); /* save the ip and eth addr for the packet to send after arp */ - NetArpWaitPacketIP = dest; + net_arp_wait_packet_ip = dest; NetArpWaitPacketMAC = ether; /* size of the waiting packet */ @@ -923,7 +940,7 @@ static inline struct ip_udp_hdr *NetDefragment(struct ip_udp_hdr *ip, int *lenp) * @parma ip IP packet containing the ICMP */ static void receive_icmp(struct ip_udp_hdr *ip, int len, - IPaddr_t src_ip, struct ethernet_hdr *et) + struct in_addr src_ip, struct ethernet_hdr *et) { struct icmp_hdr *icmph = (struct icmp_hdr *)&ip->udp_src; @@ -948,13 +965,12 @@ static void receive_icmp(struct ip_udp_hdr *ip, int len, } } -void -NetReceive(uchar *inpkt, int len) +void net_process_received_packet(uchar *in_packet, int len) { struct ethernet_hdr *et; struct ip_udp_hdr *ip; - IPaddr_t dst_ip; - IPaddr_t src_ip; + struct in_addr dst_ip; + struct in_addr src_ip; int eth_proto; #if defined(CONFIG_CMD_CDP) int iscdp; @@ -963,9 +979,9 @@ NetReceive(uchar *inpkt, int len) debug_cond(DEBUG_NET_PKT, "packet received\n"); - NetRxPacket = inpkt; + NetRxPacket = in_packet; NetRxPacketLen = len; - et = (struct ethernet_hdr *)inpkt; + et = (struct ethernet_hdr *)in_packet; /* too small packet? */ if (len < ETHER_HDR_SIZE) @@ -973,7 +989,7 @@ NetReceive(uchar *inpkt, int len) #ifdef CONFIG_API if (push_packet) { - (*push_packet)(inpkt, len); + (*push_packet)(in_packet, len); return; } #endif @@ -1000,11 +1016,11 @@ NetReceive(uchar *inpkt, int len) */ eth_proto = ntohs(et802->et_prot); - ip = (struct ip_udp_hdr *)(inpkt + E802_HDR_SIZE); + ip = (struct ip_udp_hdr *)(in_packet + E802_HDR_SIZE); len -= E802_HDR_SIZE; } else if (eth_proto != PROT_VLAN) { /* normal packet */ - ip = (struct ip_udp_hdr *)(inpkt + ETHER_HDR_SIZE); + ip = (struct ip_udp_hdr *)(in_packet + ETHER_HDR_SIZE); len -= ETHER_HDR_SIZE; } else { /* VLAN packet */ @@ -1029,7 +1045,7 @@ NetReceive(uchar *inpkt, int len) vlanid = cti & VLAN_IDMASK; eth_proto = ntohs(vet->vet_type); - ip = (struct ip_udp_hdr *)(inpkt + VLAN_ETHER_HDR_SIZE); + ip = (struct ip_udp_hdr *)(in_packet + VLAN_ETHER_HDR_SIZE); len -= VLAN_ETHER_HDR_SIZE; } @@ -1085,20 +1101,21 @@ NetReceive(uchar *inpkt, int len) if ((ip->ip_hl_v & 0x0f) > 0x05) return; /* Check the Checksum of the header */ - if (!NetCksumOk((uchar *)ip, IP_HDR_SIZE / 2)) { + if (!ip_checksum_ok((uchar *)ip, IP_HDR_SIZE)) { debug("checksum bad\n"); return; } /* If it is not for us, ignore it */ - dst_ip = NetReadIP(&ip->ip_dst); - if (NetOurIP && dst_ip != NetOurIP && dst_ip != 0xFFFFFFFF) { + dst_ip = net_read_ip(&ip->ip_dst); + if (net_ip.s_addr && dst_ip.s_addr != net_ip.s_addr && + dst_ip.s_addr != 0xFFFFFFFF) { #ifdef CONFIG_MCAST_TFTP - if (Mcast_addr != dst_ip) + if (net_mcast_addr != dst_ip) #endif return; } /* Read source IP address for later use */ - src_ip = NetReadIP(&ip->ip_src); + src_ip = net_read_ip(&ip->ip_src); /* * The function returns the unchanged packet if it's not * a fragment, and either the complete packet or NULL if @@ -1147,10 +1164,10 @@ NetReceive(uchar *inpkt, int len) xsum = ip->ip_p; xsum += (ntohs(ip->udp_len)); - xsum += (ntohl(ip->ip_src) >> 16) & 0x0000ffff; - xsum += (ntohl(ip->ip_src) >> 0) & 0x0000ffff; - xsum += (ntohl(ip->ip_dst) >> 16) & 0x0000ffff; - xsum += (ntohl(ip->ip_dst) >> 0) & 0x0000ffff; + xsum += (ntohl(ip->ip_src.s_addr) >> 16) & 0x0000ffff; + xsum += (ntohl(ip->ip_src.s_addr) >> 0) & 0x0000ffff; + xsum += (ntohl(ip->ip_dst.s_addr) >> 16) & 0x0000ffff; + xsum += (ntohl(ip->ip_dst.s_addr) >> 0) & 0x0000ffff; sumlen = ntohs(ip->udp_len); sumptr = (ushort *) &(ip->udp_src); @@ -1210,7 +1227,7 @@ static int net_check_prereq(enum proto_t protocol) /* Fall through */ #if defined(CONFIG_CMD_PING) case PING: - if (NetPingIP == 0) { + if (net_ping_ip.s_addr == 0) { puts("*** ERROR: ping address not given\n"); return 1; } @@ -1218,7 +1235,7 @@ static int net_check_prereq(enum proto_t protocol) #endif #if defined(CONFIG_CMD_SNTP) case SNTP: - if (NetNtpServerIP == 0) { + if (net_ntp_server.s_addr == 0) { puts("*** ERROR: NTP server address not given\n"); return 1; } @@ -1226,7 +1243,7 @@ static int net_check_prereq(enum proto_t protocol) #endif #if defined(CONFIG_CMD_DNS) case DNS: - if (NetOurDNSIP == 0) { + if (net_dns_server.s_addr == 0) { puts("*** ERROR: DNS server address not given\n"); return 1; } @@ -1237,7 +1254,7 @@ static int net_check_prereq(enum proto_t protocol) #endif case TFTPGET: case TFTPPUT: - if (NetServerIP == 0) { + if (net_server_ip.s_addr == 0) { puts("*** ERROR: `serverip' not set\n"); return 1; } @@ -1249,7 +1266,7 @@ common: case NETCONS: case TFTPSRV: - if (NetOurIP == 0) { + if (net_ip.s_addr == 0) { puts("*** ERROR: `ipaddr' not set\n"); return 1; } @@ -1262,7 +1279,7 @@ common: case CDP: case DHCP: case LINKLOCAL: - if (memcmp(NetOurEther, "\0\0\0\0\0\0", 6) == 0) { + if (memcmp(net_ethaddr, "\0\0\0\0\0\0", 6) == 0) { int num = eth_get_dev_index(); switch (num) { @@ -1289,27 +1306,6 @@ common: } /**********************************************************************/ -int -NetCksumOk(uchar *ptr, int len) -{ - return !((NetCksum(ptr, len) + 1) & 0xfffe); -} - - -unsigned -NetCksum(uchar *ptr, int len) -{ - ulong xsum; - ushort *p = (ushort *)ptr; - - xsum = 0; - while (len-- > 0) - xsum += *p++; - xsum = (xsum & 0xffff) + (xsum >> 16); - xsum = (xsum & 0xffff) + (xsum >> 16); - return xsum & 0xffff; -} - int NetEthHdrSize(void) { @@ -1324,7 +1320,7 @@ NetEthHdrSize(void) } int -NetSetEther(uchar *xet, uchar * addr, uint prot) +NetSetEther(uchar *xet, const uchar *dest_ethaddr, uint prot) { struct ethernet_hdr *et = (struct ethernet_hdr *)xet; ushort myvlanid; @@ -1333,8 +1329,8 @@ NetSetEther(uchar *xet, uchar * addr, uint prot) if (myvlanid == (ushort)-1) myvlanid = VLAN_NONE; - memcpy(et->et_dest, addr, 6); - memcpy(et->et_src, NetOurEther, 6); + memcpy(et->et_dest, dest_ethaddr, 6); + memcpy(et->et_src, net_ethaddr, 6); if ((myvlanid & VLAN_IDMASK) == VLAN_NONE) { et->et_protlen = htons(prot); return ETHER_HDR_SIZE; @@ -1354,7 +1350,7 @@ int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot) ushort protlen; memcpy(et->et_dest, addr, 6); - memcpy(et->et_src, NetOurEther, 6); + memcpy(et->et_src, net_ethaddr, 6); protlen = ntohs(et->et_protlen); if (protlen == PROT_VLAN) { struct vlan_ethernet_hdr *vet = @@ -1372,7 +1368,7 @@ int net_update_ether(struct ethernet_hdr *et, uchar *addr, uint prot) } } -void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source) +void net_set_ip_header(uchar *pkt, struct in_addr dest, struct in_addr source) { struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt; @@ -1388,12 +1384,12 @@ void net_set_ip_header(uchar *pkt, IPaddr_t dest, IPaddr_t source) ip->ip_ttl = 255; ip->ip_sum = 0; /* already in network byte order */ - NetCopyIP((void *)&ip->ip_src, &source); + net_copy_ip((void *)&ip->ip_src, &source); /* already in network byte order */ - NetCopyIP((void *)&ip->ip_dst, &dest); + net_copy_ip((void *)&ip->ip_dst, &dest); } -void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport, int sport, +void net_set_udp_header(uchar *pkt, struct in_addr dest, int dport, int sport, int len) { struct ip_udp_hdr *ip = (struct ip_udp_hdr *)pkt; @@ -1406,10 +1402,10 @@ void net_set_udp_header(uchar *pkt, IPaddr_t dest, int dport, int sport, if (len & 1) pkt[IP_UDP_HDR_SIZE + len] = 0; - net_set_ip_header(pkt, dest, NetOurIP); + net_set_ip_header(pkt, dest, net_ip); ip->ip_len = htons(IP_UDP_HDR_SIZE + len); ip->ip_p = IPPROTO_UDP; - ip->ip_sum = ~NetCksum((uchar *)ip, IP_HDR_SIZE >> 1); + ip->ip_sum = compute_ip_checksum(ip, IP_HDR_SIZE); ip->udp_src = htons(sport); ip->udp_dst = htons(dport); @@ -1443,13 +1439,14 @@ unsigned int random_port(void) } #endif -void ip_to_string(IPaddr_t x, char *s) +void ip_to_string(struct in_addr x, char *s) { - x = ntohl(x); + x.s_addr = ntohl(x.s_addr); sprintf(s, "%d.%d.%d.%d", - (int) ((x >> 24) & 0xff), - (int) ((x >> 16) & 0xff), - (int) ((x >> 8) & 0xff), (int) ((x >> 0) & 0xff) + (int) ((x.s_addr >> 24) & 0xff), + (int) ((x.s_addr >> 16) & 0xff), + (int) ((x.s_addr >> 8) & 0xff), + (int) ((x.s_addr >> 0) & 0xff) ); }