]> git.ipfire.org Git - people/ms/u-boot.git/blobdiff - net/bootp.c
status_led: Kconfig migration
[people/ms/u-boot.git] / net / bootp.c
index 1316f00dd8462e5317c1f21499ad489320d277d5..be8f710e0c5ca9bb0a2a884891932966c86d21c6 100644 (file)
 
 #include <common.h>
 #include <command.h>
+#include <efi_loader.h>
 #include <net.h>
 #include <net/tftp.h>
 #include "bootp.h"
 #include "nfs.h"
-#ifdef CONFIG_STATUS_LED
+#ifdef CONFIG_LED_STATUS
 #include <status_led.h>
 #endif
 #ifdef CONFIG_BOOTP_RANDOM_DELAY
@@ -60,10 +61,15 @@ char net_nis_domain[32] = {0,}; /* Our NIS domain */
 char net_hostname[32] = {0,}; /* Our hostname */
 char net_root_path[64] = {0,}; /* Our bootpath */
 
+static ulong time_taken_max;
+
 #if defined(CONFIG_CMD_DHCP)
 static dhcp_state_t dhcp_state = INIT;
 static u32 dhcp_leasetime;
 static struct in_addr dhcp_server_ip;
+static u8 dhcp_option_overload;
+#define OVERLOAD_FILE 1
+#define OVERLOAD_SNAME 2
 static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
                        unsigned src, unsigned len);
 
@@ -127,6 +133,8 @@ static int check_reply_packet(uchar *pkt, unsigned dest, unsigned src,
                retval = -5;
        else if (!bootp_match_id(net_read_u32(&bp->bp_id)))
                retval = -6;
+       else if (memcmp(bp->bp_chaddr, net_ethaddr, HWL_ETHER) != 0)
+               retval = -7;
 
        debug("Filtering pkt = %d\n", retval);
 
@@ -146,9 +154,14 @@ static void store_net_params(struct bootp_hdr *bp)
                net_copy_ip(&net_server_ip, &bp->bp_siaddr);
        memcpy(net_server_ethaddr,
               ((struct ethernet_hdr *)net_rx_packet)->et_src, 6);
-       if (strlen(bp->bp_file) > 0)
+       if (
+#if defined(CONFIG_CMD_DHCP)
+           !(dhcp_option_overload & OVERLOAD_FILE) &&
+#endif
+           (strlen(bp->bp_file) > 0)) {
                copy_filename(net_boot_file_name, bp->bp_file,
                              sizeof(net_boot_file_name));
+       }
 
        debug("net_boot_file_name: %s\n", net_boot_file_name);
 
@@ -346,8 +359,8 @@ static void bootp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
        /*
         *      Got a good BOOTP reply.  Copy the data into our variables.
         */
-#if defined(CONFIG_STATUS_LED) && defined(STATUS_LED_BOOT)
-       status_led_set(STATUS_LED_BOOT, STATUS_LED_OFF);
+#if defined(CONFIG_LED_STATUS) && defined(CONFIG_LED_STATUS_BOOT_ENABLE)
+       status_led_set(CONFIG_LED_STATUS_BOOT, CONFIG_LED_STATUS_OFF);
 #endif
 
        store_net_params(bp);           /* Store net parameters from reply */
@@ -372,7 +385,7 @@ static void bootp_timeout_handler(void)
 {
        ulong time_taken = get_timer(bootp_start);
 
-       if (time_taken >= TIMEOUT_MS) {
+       if (time_taken >= time_taken_max) {
 #ifdef CONFIG_BOOTP_MAY_FAIL
                puts("\nRetry time exceeded\n");
                net_set_state(NETLOOP_FAIL);
@@ -398,6 +411,26 @@ static void bootp_timeout_handler(void)
                e += vci_strlen;                                \
        } while (0)
 
+static u8 *add_vci(u8 *e)
+{
+       char *vci = NULL;
+       char *env_vci = getenv("bootp_vci");
+
+#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING)
+       vci = CONFIG_SPL_NET_VCI_STRING;
+#elif defined(CONFIG_BOOTP_VCI_STRING)
+       vci = CONFIG_BOOTP_VCI_STRING;
+#endif
+
+       if (env_vci)
+               vci = env_vci;
+
+       if (vci)
+               put_vci(e, vci);
+
+       return e;
+}
+
 /*
  *     Initialize BOOTP extension fields in the request.
  */
@@ -407,10 +440,10 @@ static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
 {
        u8 *start = e;
        u8 *cnt;
-#if defined(CONFIG_BOOTP_PXE)
+#ifdef CONFIG_LIB_UUID
        char *uuid;
-       u16 clientarch;
 #endif
+       int clientarch = -1;
 
 #if defined(CONFIG_BOOTP_VENDOREX)
        u8 *x;
@@ -466,12 +499,19 @@ static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
        }
 #endif
 
-#if defined(CONFIG_BOOTP_PXE)
+#ifdef CONFIG_BOOTP_PXE_CLIENTARCH
        clientarch = CONFIG_BOOTP_PXE_CLIENTARCH;
-       *e++ = 93;      /* Client System Architecture */
-       *e++ = 2;
-       *e++ = (clientarch >> 8) & 0xff;
-       *e++ = clientarch & 0xff;
+#endif
+
+       if (getenv("bootp_arch"))
+               clientarch = getenv_ulong("bootp_arch", 16, clientarch);
+
+       if (clientarch > 0) {
+               *e++ = 93;      /* Client System Architecture */
+               *e++ = 2;
+               *e++ = (clientarch >> 8) & 0xff;
+               *e++ = clientarch & 0xff;
+       }
 
        *e++ = 94;      /* Client Network Interface Identifier */
        *e++ = 3;
@@ -479,6 +519,7 @@ static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
        *e++ = 0;       /* major revision */
        *e++ = 0;       /* minor revision */
 
+#ifdef CONFIG_LIB_UUID
        uuid = getenv("pxeuuid");
 
        if (uuid) {
@@ -495,11 +536,7 @@ static int dhcp_extended(u8 *e, int message_type, struct in_addr server_ip,
        }
 #endif
 
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING)
-       put_vci(e, CONFIG_SPL_NET_VCI_STRING);
-#elif defined(CONFIG_BOOTP_VCI_STRING)
-       put_vci(e, CONFIG_BOOTP_VCI_STRING);
-#endif
+       e = add_vci(e);
 
 #if defined(CONFIG_BOOTP_VENDOREX)
        x = dhcp_vendorex_prep(e);
@@ -585,14 +622,7 @@ static int bootp_extended(u8 *e)
        *e++ = (576 - 312 + OPT_FIELD_SIZE) & 0xff;
 #endif
 
-#if defined(CONFIG_BOOTP_VCI_STRING) || \
-       (defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_NET_VCI_STRING))
-#ifdef CONFIG_SPL_BUILD
-       put_vci(e, CONFIG_SPL_NET_VCI_STRING);
-#else
-       put_vci(e, CONFIG_BOOTP_VCI_STRING);
-#endif
-#endif
+       add_vci(e);
 
 #if defined(CONFIG_BOOTP_SUBNETMASK)
        *e++ = 1;               /* Subnet mask request */
@@ -643,6 +673,15 @@ static int bootp_extended(u8 *e)
 
        *e++ = 255;             /* End of the list */
 
+       /*
+        * If nothing in list, remove it altogether. Some DHCP servers get
+        * upset by this minor faux pas and do not respond at all.
+        */
+       if (e == start + 3) {
+               printf("*** Warning: no DHCP options requested\n");
+               e -= 3;
+       }
+
        return e - start;
 }
 #endif
@@ -667,12 +706,19 @@ void bootp_request(void)
        u32 bootp_id;
        struct in_addr zero_ip;
        struct in_addr bcast_ip;
+       char *ep;  /* Environment pointer */
 
        bootstage_mark_name(BOOTSTAGE_ID_BOOTP_START, "bootp_start");
 #if defined(CONFIG_CMD_DHCP)
        dhcp_state = INIT;
 #endif
 
+       ep = getenv("bootpretryperiod");
+       if (ep != NULL)
+               time_taken_max = simple_strtoul(ep, NULL, 10);
+       else
+               time_taken_max = TIMEOUT_MS;
+
 #ifdef CONFIG_BOOTP_RANDOM_DELAY               /* Random BOOTP delay */
        if (bootp_try == 0)
                srand_mac();
@@ -765,9 +811,8 @@ void bootp_request(void)
 }
 
 #if defined(CONFIG_CMD_DHCP)
-static void dhcp_process_options(uchar *popt, struct bootp_hdr *bp)
+static void dhcp_process_options(uchar *popt, uchar *end)
 {
-       uchar *end = popt + BOOTP_HDR_SIZE;
        int oplen, size;
 #if defined(CONFIG_CMD_SNTP) && defined(CONFIG_BOOTP_TIMEOFFSET)
        int *to_ptr;
@@ -823,6 +868,9 @@ static void dhcp_process_options(uchar *popt, struct bootp_hdr *bp)
                case 51:
                        net_copy_u32(&dhcp_leasetime, (u32 *)(popt + 2));
                        break;
+               case 52:
+                       dhcp_option_overload = popt[2];
+                       break;
                case 53:        /* Ignore Message Type Option */
                        break;
                case 54:
@@ -834,31 +882,11 @@ static void dhcp_process_options(uchar *popt, struct bootp_hdr *bp)
                        break;
                case 66:        /* Ignore TFTP server name */
                        break;
-               case 67:        /* vendor opt bootfile */
-                       /*
-                        * I can't use dhcp_vendorex_proc here because I need
-                        * to write into the bootp packet - even then I had to
-                        * pass the bootp packet pointer into here as the
-                        * second arg
-                        */
-                       size = truncate_sz("Opt Boot File",
-                                           sizeof(bp->bp_file),
-                                           oplen);
-                       if (bp->bp_file[0] == '\0' && size > 0) {
-                               /*
-                                * only use vendor boot file if we didn't
-                                * receive a boot file in the main non-vendor
-                                * part of the packet - god only knows why
-                                * some vendors chose not to use this perfectly
-                                * good spot to store the boot file (join on
-                                * Tru64 Unix) it seems mind bogglingly crazy
-                                * to me
-                                */
-                               printf("*** WARNING: using vendor "
-                                      "optional boot file\n");
-                               memcpy(bp->bp_file, popt + 2, size);
-                               bp->bp_file[size] = '\0';
-                       }
+               case 67:        /* Bootfile option */
+                       size = truncate_sz("Bootfile",
+                                          sizeof(net_boot_file_name), oplen);
+                       memcpy(&net_boot_file_name, popt + 2, size);
+                       net_boot_file_name[size] = 0;
                        break;
                default:
 #if defined(CONFIG_BOOTP_VENDOREX)
@@ -873,6 +901,35 @@ static void dhcp_process_options(uchar *popt, struct bootp_hdr *bp)
        }
 }
 
+static void dhcp_packet_process_options(struct bootp_hdr *bp)
+{
+       uchar *popt = (uchar *)&bp->bp_vend[4];
+       uchar *end = popt + BOOTP_HDR_SIZE;
+
+       if (net_read_u32((u32 *)&bp->bp_vend[0]) != htonl(BOOTP_VENDOR_MAGIC))
+               return;
+
+       dhcp_option_overload = 0;
+
+       /*
+        * The 'options' field MUST be interpreted first, 'file' next,
+        * 'sname' last.
+        */
+       dhcp_process_options(popt, end);
+
+       if (dhcp_option_overload & OVERLOAD_FILE) {
+               popt = (uchar *)bp->bp_file;
+               end = popt + sizeof(bp->bp_file);
+               dhcp_process_options(popt, end);
+       }
+
+       if (dhcp_option_overload & OVERLOAD_SNAME) {
+               popt = (uchar *)bp->bp_sname;
+               end = popt + sizeof(bp->bp_sname);
+               dhcp_process_options(popt, end);
+       }
+}
+
 static int dhcp_message_type(unsigned char *popt)
 {
        if (net_read_u32((u32 *)popt) != htonl(BOOTP_VENDOR_MAGIC))
@@ -930,6 +987,7 @@ static void dhcp_send_request_packet(struct bootp_hdr *bp_offer)
        net_write_ip(&bp->bp_giaddr, zero_ip);
 
        memcpy(bp->bp_chaddr, net_ethaddr, 6);
+       copy_filename(bp->bp_file, net_boot_file_name, sizeof(bp->bp_file));
 
        /*
         * ID is the id of the OFFER packet
@@ -976,6 +1034,9 @@ static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
        debug("DHCPHandler: got DHCP packet: (src=%d, dst=%d, len=%d) state: "
              "%d\n", src, dest, len, dhcp_state);
 
+       if (net_read_ip(&bp->bp_yiaddr).s_addr == 0)
+               return;
+
        switch (dhcp_state) {
        case SELECTING:
                /*
@@ -990,14 +1051,12 @@ static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
                            CONFIG_SYS_BOOTFILE_PREFIX,
                            strlen(CONFIG_SYS_BOOTFILE_PREFIX)) == 0) {
 #endif /* CONFIG_SYS_BOOTFILE_PREFIX */
+                       dhcp_packet_process_options(bp);
+                       efi_net_set_dhcp_ack(pkt, len);
 
                        debug("TRANSITIONING TO REQUESTING STATE\n");
                        dhcp_state = REQUESTING;
 
-                       if (net_read_u32((u32 *)&bp->bp_vend[0]) ==
-                                               htonl(BOOTP_VENDOR_MAGIC))
-                               dhcp_process_options((u8 *)&bp->bp_vend[4], bp);
-
                        net_set_timeout_handler(5000, bootp_timeout_handler);
                        dhcp_send_request_packet(bp);
 #ifdef CONFIG_SYS_BOOTFILE_PREFIX
@@ -1010,14 +1069,13 @@ static void dhcp_handler(uchar *pkt, unsigned dest, struct in_addr sip,
                debug("DHCP State: REQUESTING\n");
 
                if (dhcp_message_type((u8 *)bp->bp_vend) == DHCP_ACK) {
-                       if (net_read_u32((u32 *)&bp->bp_vend[0]) ==
-                                               htonl(BOOTP_VENDOR_MAGIC))
-                               dhcp_process_options((u8 *)&bp->bp_vend[4], bp);
+                       dhcp_packet_process_options(bp);
                        /* Store net params from reply */
                        store_net_params(bp);
                        dhcp_state = BOUND;
                        printf("DHCP client bound to address %pI4 (%lu ms)\n",
                               &net_ip, get_timer(bootp_start));
+                       net_set_timeout_handler(0, (thand_f *)0);
                        bootstage_mark_name(BOOTSTAGE_ID_BOOTP_STOP,
                                            "bootp_stop");