X-Git-Url: http://git.ozlabs.org/?p=yaboot.git;a=blobdiff_plain;f=second%2Ffile.c;h=a52b664e8900c6e789764c696f5d4e61ab9fab0d;hp=6b997b0589b0506155088d25d809eca41e02781b;hb=3cbe90093acba116c5fc46beaf50f74c7c8a1b69;hpb=11f8168a5e7a6f966693e371697920e0be7abc0f

diff --git a/second/file.c b/second/file.c
index 6b997b0..a52b664 100644
--- a/second/file.c
+++ b/second/file.c
@@ -172,6 +172,7 @@ extract_ipv4_args(char *imagepath, struct boot_fspec_t *result)
      result->giaddr = is_valid_ipv4_str(scopy(&str, &args));
      result->bootp_retries = scopy(&str, &args);
      result->tftp_retries = scopy(&str, &args);
+     result->subnetmask = is_valid_ipv4_str(scopy(&str, &args));
      if (*args) {
 	  result->addl_params = strdup(args);
 	  if (!result->addl_params)
@@ -185,7 +186,6 @@ enum dhcp_options {
      DHCP_PAD = 0,
      DHCP_NETMASK = 1,
      DHCP_ROUTERS = 3,
-     DHCP_DNS = 6,
      DHCP_END = 255,
 };
 
@@ -217,13 +217,18 @@ extract_vendor_options(struct bootp_packet *packet, struct boot_fspec_t *result)
       *         it's malformed. :( */
      while (options[i] != DHCP_END) {
           __u8 tag = options[i++], len;
-          __u32 value;
+          __u32 value = 0;
 
           if (tag == DHCP_PAD)
                continue;
 
           len = options[i++];
-          memcpy(&value, &options[i], len);
+          /* Clamp the maxium length of the memcpy() to the right size for
+           * value. */
+          if (len > sizeof(value))
+               memcpy(&value, &options[i], sizeof(value));
+          else
+               memcpy(&value, &options[i], len);
 
 #if DEBUG
 {
@@ -237,7 +242,12 @@ extract_vendor_options(struct bootp_packet *packet, struct boot_fspec_t *result)
 
           switch (tag) {
                case DHCP_NETMASK:
-                    /* FIXME: do we need to grok the subnet mask? */
+                    if ((result->subnetmask == NULL ||
+                         *(result->subnetmask) == '\x0') && value != 0) {
+                         result->subnetmask = ipv4_to_str(value);
+                         DEBUG_F("Storing %s as subnetmask from options\n",
+                                 result->subnetmask);
+                    }
                     break;
                case DHCP_ROUTERS:
                     if ((result->giaddr == NULL || *(result->giaddr) == '\x0')
@@ -255,10 +265,8 @@ extract_vendor_options(struct bootp_packet *packet, struct boot_fspec_t *result)
 /*
  * Check netinfo for ipv4 parameters and add them to the fspec iff the
  * fspec has no existing value.
- *
- * Returns 1 on success, 0 on failure.
  */
-static int
+static void
 extract_netinfo_args(struct boot_fspec_t *result)
 {
      struct bootp_packet *packet;
@@ -266,7 +274,7 @@ extract_netinfo_args(struct boot_fspec_t *result)
      /* Check to see if we can get the [scyg]iaddr fields from netinfo */
      packet = prom_get_netinfo();
      if (!packet)
-          return 0;
+          return;
 
      DEBUG_F("We have a boot packet\n");
      DEBUG_F(" siaddr = <%x>\n", packet->siaddr);
@@ -298,6 +306,48 @@ extract_netinfo_args(struct boot_fspec_t *result)
           result->giaddr = ipv4_to_str(packet->siaddr);
           DEBUG_F("Forcing giaddr to siaddr <%s>\n", result->giaddr);
      }
+}
+
+/*
+ * Extract all the ipv6 arguments from the bootpath provided and fill result
+ * Syntax: ipv6,[dhcpv6[=diaddr,]]ciaddr=c_iaddr,giaddr=g_iaddr,siaddr=s_iaddr,
+ *      filename=file_name,tftp-retries=tftp_retries,blksize=block_size
+ * Returns 1 on success, 0 on failure.
+ */
+static int
+extract_ipv6_args(char *imagepath, struct boot_fspec_t *result)
+{
+     char *str, *tmp;
+     int total_len;
+
+     result->is_ipv6 = 1;
+
+     /* Just allocate the max required size */
+     total_len = strlen(imagepath) + 1;
+     str = malloc(total_len);
+     if (!str)
+	return 0;
+
+     if ((tmp = strstr(imagepath, "dhcpv6=")) != NULL)
+	result->dhcpv6 = scopy(&str, &tmp);
+
+     if ((tmp = strstr(imagepath, "ciaddr=")) != NULL)
+	result->ciaddr = scopy(&str, &tmp);
+
+     if ((tmp = strstr(imagepath, "giaddr=")) != NULL)
+	result->giaddr = scopy(&str, &tmp);
+
+     if ((tmp = strstr(imagepath, "siaddr=")) != NULL)
+	result->siaddr = scopy(&str, &tmp);
+
+     if ((tmp = strstr(imagepath, "filename=")) != NULL)
+	result->file = scopy(&str, &tmp);
+
+     if ((tmp = strstr(imagepath, "tftp-retries=")) != NULL)
+	result->tftp_retries = scopy(&str, &tmp);
+
+     if ((tmp = strstr(imagepath, "blksize=")) != NULL)
+	result->blksize = scopy(&str, &tmp);
 
      return 1;
 }
@@ -316,9 +366,13 @@ extract_netboot_args(char *imagepath, struct boot_fspec_t *result)
      if (!imagepath)
 	  return 1;
 
-     ret = extract_ipv4_args(imagepath, result);
-     ret |= extract_netinfo_args(result);
+     if (strstr(imagepath, TOK_IPV6))
+	  ret = extract_ipv6_args(imagepath, result);
+     else
+	  ret = extract_ipv4_args(imagepath, result);
+     extract_netinfo_args(result);
 
+     DEBUG_F("ipv6 = <%d>\n", result->is_ipv6);
      DEBUG_F("siaddr = <%s>\n", result->siaddr);
      DEBUG_F("file = <%s>\n", result->file);
      DEBUG_F("ciaddr = <%s>\n", result->ciaddr);
@@ -326,7 +380,9 @@ extract_netboot_args(char *imagepath, struct boot_fspec_t *result)
      DEBUG_F("bootp_retries = <%s>\n", result->bootp_retries);
      DEBUG_F("tftp_retries = <%s>\n", result->tftp_retries);
      DEBUG_F("addl_params = <%s>\n", result->addl_params);
-   
+     DEBUG_F("dhcpv6 = <%s>\n", result->dhcpv6);
+     DEBUG_F("blksize = <%s>\n", result->blksize);
+
      return ret;
 }
 
@@ -619,6 +675,9 @@ int open_file(struct boot_fspec_t* spec, struct boot_file_t* file)
      case FILE_DEVICE_BLOCK:
 	  DEBUG_F("device is a block device\n");
 	  return file_block_open(file, spec, spec->part);
+     case FILE_DEVICE_ISCSI:
+	  DEBUG_F("device is a iSCSI device\n");
+	  return file_block_open(file, spec, spec->part);
      case FILE_DEVICE_NET:
 	  DEBUG_F("device is a network device\n");
 	  return file_net_open(file, spec);