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-rw-r--r--clients/net-snk/app/netapps/netboot.c502
1 files changed, 502 insertions, 0 deletions
diff --git a/clients/net-snk/app/netapps/netboot.c b/clients/net-snk/app/netapps/netboot.c
new file mode 100644
index 0000000..07a1392
--- /dev/null
+++ b/clients/net-snk/app/netapps/netboot.c
@@ -0,0 +1,502 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2007 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ * IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <netlib/netlib.h>
+#include <netlib/netbase.h>
+#include <netlib/icmp.h>
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <netapps/args.h>
+#include <libbootmsg/libbootmsg.h>
+#include <sys/socket.h>
+#include <of.h>
+
+#define IP_INIT_DEFAULT 2
+#define IP_INIT_NONE 0
+#define IP_INIT_BOOTP 1
+#define IP_INIT_DHCP 2
+
+#define DEFAULT_BOOT_RETRIES 600
+#define DEFAULT_TFTP_RETRIES 20
+
+typedef struct {
+ int ip_init;
+ char siaddr[4];
+ char filename[100];
+ char ciaddr[4];
+ char giaddr[4];
+ int bootp_retries;
+ int tftp_retries;
+} obp_tftp_args_t;
+
+/**
+ * Parses a argument string which is given by netload, extracts all
+ * parameters and fills a structure according to this
+ *
+ * Netload-Parameters:
+ * [bootp,]siaddr,filename,ciaddr,giaddr,bootp-retries,tftp-retries
+ *
+ * @param arg_str string with arguments, seperated with ','
+ * @param obp_tftp_args structure which contains the result
+ * @return none
+ */
+static void parse_args(const char *arg_str, obp_tftp_args_t *obp_tftp_args) {
+ unsigned int argc;
+ char arg_buf[100];
+ char *ptr;
+
+ argc = get_args_count(arg_str);
+
+ // find out if we should use BOOTP or DHCP
+ if(argc==0)
+ obp_tftp_args->ip_init = IP_INIT_DEFAULT;
+ else {
+ argncpy(arg_str, 0, arg_buf, 100);
+ if(strcasecmp(arg_buf, "bootp") == 0) {
+ obp_tftp_args->ip_init = IP_INIT_BOOTP;
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else if(strcasecmp(arg_buf, "dhcp") == 0) {
+ obp_tftp_args->ip_init = IP_INIT_DHCP;
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else
+ obp_tftp_args->ip_init = IP_INIT_DEFAULT;
+ }
+
+ // find out siaddr
+ if(argc==0)
+ memset(obp_tftp_args->siaddr, 0, 4);
+ else {
+ argncpy(arg_str, 0, arg_buf, 100);
+ if(strtoip(arg_buf, obp_tftp_args->siaddr)) {
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else if(arg_buf[0] == 0) {
+ memset(obp_tftp_args->siaddr, 0, 4);
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else
+ memset(obp_tftp_args->siaddr, 0, 4);
+ }
+
+ // find out filename
+ if(argc==0)
+ obp_tftp_args->filename[0] = 0;
+ else {
+ argncpy(arg_str, 0, obp_tftp_args->filename, 100);
+ for(ptr = obp_tftp_args->filename; *ptr != 0; ++ptr)
+ if(*ptr == '\\')
+ *ptr = '/';
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+
+ // find out ciaddr
+ if(argc==0)
+ memset(obp_tftp_args->ciaddr, 0, 4);
+ else {
+ argncpy(arg_str, 0, arg_buf, 100);
+ if(strtoip(arg_buf, obp_tftp_args->ciaddr)) {
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else if(arg_buf[0] == 0) {
+ memset(obp_tftp_args->ciaddr, 0, 4);
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else
+ memset(obp_tftp_args->ciaddr, 0, 4);
+ }
+
+ // find out giaddr
+ if(argc==0)
+ memset(obp_tftp_args->giaddr, 0, 4);
+ else {
+ argncpy(arg_str, 0, arg_buf, 100);
+ if(strtoip(arg_buf, obp_tftp_args->giaddr)) {
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else if(arg_buf[0] == 0) {
+ memset(obp_tftp_args->giaddr, 0, 4);
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+ else
+ memset(obp_tftp_args->giaddr, 0, 4);
+ }
+
+ // find out bootp-retries
+ if(argc==0)
+ obp_tftp_args->bootp_retries = DEFAULT_BOOT_RETRIES;
+ else {
+ argncpy(arg_str, 0, arg_buf, 100);
+ if(arg_buf[0] == 0)
+ obp_tftp_args->bootp_retries = DEFAULT_BOOT_RETRIES;
+ else {
+ obp_tftp_args->bootp_retries = strtol(arg_buf, 0, 10);
+ if(obp_tftp_args->bootp_retries < 0)
+ obp_tftp_args->bootp_retries = DEFAULT_BOOT_RETRIES;
+ }
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+
+ // find out tftp-retries
+ if(argc==0)
+ obp_tftp_args->tftp_retries = DEFAULT_TFTP_RETRIES;
+ else {
+ argncpy(arg_str, 0, arg_buf, 100);
+ if(arg_buf[0] == 0)
+ obp_tftp_args->tftp_retries = DEFAULT_TFTP_RETRIES;
+ else {
+ obp_tftp_args->tftp_retries = strtol(arg_buf, 0, 10);
+ if(obp_tftp_args->tftp_retries < 0)
+ obp_tftp_args->tftp_retries = DEFAULT_TFTP_RETRIES;
+ }
+ arg_str = get_arg_ptr(arg_str, 1);
+ --argc;
+ }
+}
+
+int
+netboot(int argc, char *argv[])
+{
+ char buf[256];
+ int rc;
+ int len = strtol(argv[2], 0, 16);
+ char *buffer = (char *) strtol(argv[1], 0, 16);
+ filename_ip_t fn_ip;
+ int fd_device;
+ tftp_err_t tftp_err;
+ obp_tftp_args_t obp_tftp_args;
+ char null_ip[4] = { 0x00, 0x00, 0x00, 0x00 };
+
+ printf("\n");
+ printf(" Bootloader 1.5 \n");
+ memset(&fn_ip, 0, sizeof(filename_ip_t));
+
+ /***********************************************************
+ *
+ * Initialize network stuff and retrieve boot informations
+ *
+ ***********************************************************/
+
+ /* Wait for link up and get mac_addr from device */
+ for(rc=0; rc<DEFAULT_BOOT_RETRIES; ++rc) {
+ if(rc > 0) {
+ set_timer(TICKS_SEC);
+ while (get_timer() > 0);
+ }
+ fd_device = socket(0, 0, 0, (char *) fn_ip.own_mac);
+ if(fd_device != -2)
+ break;
+ if(getchar() == 27) {
+ fd_device = -2;
+ break;
+ }
+ }
+
+ if (fd_device == -1) {
+ strcpy(buf,"E3000: (net) Could not read MAC address");
+ bootmsg_error(0x3000, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -100;
+ }
+ else if (fd_device == -2) {
+ strcpy(buf,"E3006: (net) Could not initialize network device");
+ bootmsg_error(0x3006, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -101;
+ }
+
+ printf(" Reading MAC address from device: "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ fn_ip.own_mac[0], fn_ip.own_mac[1], fn_ip.own_mac[2],
+ fn_ip.own_mac[3], fn_ip.own_mac[4], fn_ip.own_mac[5]);
+
+ if (argc >= 4) {
+ parse_args(argv[3], &obp_tftp_args);
+ if(obp_tftp_args.bootp_retries - rc < DEFAULT_BOOT_RETRIES)
+ obp_tftp_args.bootp_retries = DEFAULT_BOOT_RETRIES;
+ else
+ obp_tftp_args.bootp_retries -= rc;
+ }
+ else {
+ memset(&obp_tftp_args, 0, sizeof(obp_tftp_args_t));
+ obp_tftp_args.ip_init = IP_INIT_DEFAULT;
+ obp_tftp_args.bootp_retries = DEFAULT_BOOT_RETRIES;
+ obp_tftp_args.tftp_retries = DEFAULT_TFTP_RETRIES;
+ }
+ memcpy(&fn_ip.own_ip, obp_tftp_args.ciaddr, 4);
+
+ // init network stack
+ netbase_init(fd_device, fn_ip.own_mac, fn_ip.own_ip);
+
+ // reset of error code
+ rc = 0;
+
+ /* if we still have got all necessary parameters, then we don't
+ need to perform an BOOTP/DHCP-Request */
+ if(memcmp(obp_tftp_args.ciaddr, null_ip, 4) != 0
+ && memcmp(obp_tftp_args.siaddr, null_ip, 4) != 0
+ && obp_tftp_args.filename[0] != 0) {
+ memcpy(&fn_ip.server_ip, obp_tftp_args.siaddr, 4);
+
+ // try to get the MAC address of the TFTP server
+ if (net_iptomac(fn_ip.server_ip, fn_ip.server_mac)) {
+ // we got it
+ obp_tftp_args.ip_init = IP_INIT_NONE;
+ }
+ else {
+ // figure out if there is a change to get it somehow else
+ switch(obp_tftp_args.ip_init) {
+ case IP_INIT_NONE:
+ case IP_INIT_BOOTP: // BOOTP doesn't help
+ obp_tftp_args.ip_init = IP_INIT_NONE;
+ rc = -2;
+ break;
+ case IP_INIT_DHCP: // the DHCP server might tell us an
+ // appropriate router and netmask
+ default:
+ break;
+ }
+ }
+ }
+
+ // construction of fn_ip from parameter
+ switch(obp_tftp_args.ip_init) {
+ case IP_INIT_BOOTP:
+ printf(" Requesting IP address via BOOTP: ");
+ // if giaddr in not specified, then we have to identify
+ // the BOOTP server via broadcasts
+ if(memcmp(obp_tftp_args.giaddr, null_ip, 4) == 0) {
+ // don't do this, when using DHCP !!!
+ fn_ip.server_ip = 0xFFFFFFFF;
+ memset(fn_ip.server_mac, 0xff, 6);
+ }
+ // if giaddr is specified, then we have to use this
+ // IP address as proxy to identify the BOOTP server
+ else {
+ memcpy(&fn_ip.server_ip, obp_tftp_args.giaddr, 4);
+ memset(fn_ip.server_mac, 0xff, 6);
+ }
+ rc = bootp(fd_device, &fn_ip, obp_tftp_args.bootp_retries);
+ break;
+ case IP_INIT_DHCP:
+ printf(" Requesting IP address via DHCP: ");
+ rc = dhcp(fd_device, &fn_ip, obp_tftp_args.bootp_retries);
+ break;
+ case IP_INIT_NONE:
+ default:
+ break;
+ }
+
+ if(rc >= 0) {
+ if(memcmp(obp_tftp_args.ciaddr, null_ip, 4) != 0
+ && memcmp(obp_tftp_args.ciaddr, &fn_ip.own_ip, 4) != 0)
+ memcpy(&fn_ip.own_ip, obp_tftp_args.ciaddr, 4);
+
+ if(memcmp(obp_tftp_args.siaddr, null_ip, 4) != 0
+ && memcmp(obp_tftp_args.siaddr, &fn_ip.server_ip, 4) != 0)
+ memcpy(&fn_ip.server_ip, obp_tftp_args.siaddr, 4);
+
+ // reinit network stack
+ netbase_init(fd_device, fn_ip.own_mac, fn_ip.own_ip);
+
+ if (!net_iptomac(fn_ip.server_ip, fn_ip.server_mac)) {
+ // printf("\nERROR:\t\t\tCan't obtain TFTP server MAC!\n");
+ rc = -2;
+ }
+ }
+
+ if (rc == -1) {
+ strcpy(buf,"E3001: (net) Could not get IP address");
+ bootmsg_error(0x3001, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -101;
+ }
+
+ printf("%d.%d.%d.%d\n",
+ ((fn_ip.own_ip >> 24) & 0xFF), ((fn_ip.own_ip >> 16) & 0xFF),
+ ((fn_ip.own_ip >> 8) & 0xFF), ( fn_ip.own_ip & 0xFF));
+
+ if (rc == -2) {
+ sprintf(buf,
+ "E3002: (net) ARP request to TFTP server "
+ "(%d.%d.%d.%d) failed",
+ ((fn_ip.server_ip >> 24) & 0xFF),
+ ((fn_ip.server_ip >> 16) & 0xFF),
+ ((fn_ip.server_ip >> 8) & 0xFF),
+ ( fn_ip.server_ip & 0xFF));
+ bootmsg_error(0x3002, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -102;
+ }
+ if (rc == -4 || rc == -3) {
+ strcpy(buf,"E3008: (net) Can't obtain TFTP server IP address");
+ bootmsg_error(0x3008, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -107;
+ }
+
+
+ /***********************************************************
+ *
+ * Load file via TFTP into buffer provided by OpenFirmware
+ *
+ ***********************************************************/
+
+ if (obp_tftp_args.filename[0] != 0) {
+ strncpy((char *) fn_ip.filename, obp_tftp_args.filename, sizeof(fn_ip.filename)-1);
+ fn_ip.filename[sizeof(fn_ip.filename)-1] = 0;
+ }
+
+ printf(" Requesting file \"%s\" via TFTP\n", fn_ip.filename);
+
+ // accept at most 20 bad packets
+ // wait at most for 40 packets
+ rc = tftp(fd_device, &fn_ip, (unsigned char *) buffer, len, obp_tftp_args.tftp_retries, &tftp_err);
+
+ if(obp_tftp_args.ip_init == IP_INIT_DHCP)
+ dhcp_send_release();
+
+ if (rc > 0) {
+ printf(" TFTP: Received %s (%d KBytes)\n", fn_ip.filename,
+ rc / 1024);
+ } else if (rc == -1) {
+ bootmsg_error(0x3003, "(net) unknown TFTP error");
+ return -103;
+ } else if (rc == -2) {
+ sprintf(buf,
+ "E3004: (net) TFTP buffer of %d bytes "
+ "is too small for %s",
+ len, fn_ip.filename);
+ bootmsg_error(0x3004, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -104;
+ } else if (rc == -3) {
+ sprintf(buf,"E3009: (net) file not found: %s",
+ fn_ip.filename);
+ bootmsg_error(0x3009, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -108;
+ } else if (rc == -4) {
+ strcpy(buf,"E3010: (net) TFTP access violation");
+ bootmsg_error(0x3010, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -109;
+ } else if (rc == -5) {
+ strcpy(buf,"E3011: (net) illegal TFTP operation");
+ bootmsg_error(0x3011, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -110;
+ } else if (rc == -6) {
+ strcpy(buf, "E3012: (net) unknown TFTP transfer ID");
+ bootmsg_error(0x3012, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -111;
+ } else if (rc == -7) {
+ strcpy(buf, "E3013: (net) no such TFTP user");
+ bootmsg_error(0x3013, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -112;
+ } else if (rc == -8) {
+ strcpy(buf, "E3017: (net) TFTP blocksize negotiation failed");
+ bootmsg_error(0x3017, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -116;
+ } else if (rc == -9) {
+ strcpy(buf,"E3018: (net) file exceeds maximum TFTP transfer size");
+ bootmsg_error(0x3018, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -117;
+ } else if (rc <= -10 && rc >= -15) {
+ sprintf(buf,"E3005: (net) ICMP ERROR \"");
+ switch (rc) {
+ case -ICMP_NET_UNREACHABLE - 10:
+ sprintf(buf+strlen(buf),"net unreachable");
+ break;
+ case -ICMP_HOST_UNREACHABLE - 10:
+ sprintf(buf+strlen(buf),"host unreachable");
+ break;
+ case -ICMP_PROTOCOL_UNREACHABLE - 10:
+ sprintf(buf+strlen(buf),"protocol unreachable");
+ break;
+ case -ICMP_PORT_UNREACHABLE - 10:
+ sprintf(buf+strlen(buf),"port unreachable");
+ break;
+ case -ICMP_FRAGMENTATION_NEEDED - 10:
+ sprintf(buf+strlen(buf),"fragmentation needed and DF set");
+ break;
+ case -ICMP_SOURCE_ROUTE_FAILED - 10:
+ sprintf(buf+strlen(buf),"source route failed");
+ break;
+ default:
+ sprintf(buf+strlen(buf)," UNKNOWN");
+ break;
+ }
+ sprintf(buf+strlen(buf),"\"");
+ bootmsg_error(0x3005, &buf[7]);
+
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -105;
+ } else if (rc == -40) {
+ sprintf(buf,
+ "E3014: (net) TFTP error occurred after "
+ "%d bad packets received",
+ tftp_err.bad_tftp_packets);
+ bootmsg_error(0x3014, &buf[7]);
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -113;
+ } else if (rc == -41) {
+ sprintf(buf,
+ "E3015: (net) TFTP error occurred after "
+ "missing %d responses",
+ tftp_err.no_packets);
+ bootmsg_error(0x3015, &buf[7]);
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -114;
+ } else if (rc == -42) {
+ sprintf(buf,
+ "E3016: (net) TFTP error missing block %d, "
+ "expected block was %d",
+ tftp_err.blocks_missed,
+ tftp_err.blocks_received);
+ bootmsg_error(0x3016, &buf[7]);
+ write_mm_log(buf, strlen(buf), 0x91);
+ return -115;
+ }
+ return rc;
+}
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