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Kernel v2.6.25-rc7 /net/ipv4/ipconfig.c

Filename:/net/ipv4/ipconfig.c
Lines Added:34
Lines Deleted:8
Also changed in: (Previous) 2.6.25-rc6-git8  2.6.25-rc6-git7  2.6.25-rc6-git6  2.6.25-rc6  2.6.25-rc5  2.6.25-rc4 
(Following) 2.6.25-rc8  2.6.25-rc9  2.6.25  2.6.25-git2  2.6.25-git3  2.6.25-git4 

Location
[  2.6.25-rc7
  [  net
    [  ipv4
       o  ipconfig.c

Patch

diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c
index b8f7763..7c992fb 100644
--- a/net/ipv4/ipconfig.c
+++ b/net/ipv4/ipconfig.c
@@ -103,6 +103,7 @@
                   - '3' from resolv.h */
 
 #define NONE __constant_htonl(INADDR_NONE)
+#define ANY __constant_htonl(INADDR_ANY)
 
 /*
  * Public IP configuration
@@ -140,6 +141,9 @@ __be32 ic_servaddr = NONE;   /* Boot server IP address */
 __be32 root_server_addr = NONE;   /* Address of NFS server */
 u8 root_server_path[256] = { 0, };   /* Path to mount as root */
 
+/* vendor class identifier */
+static char vendor_class_identifier[253] __initdata;
+
 /* Persistent data: */
 
 static int ic_proto_used;         /* Protocol used, if any */
@@ -299,7 +303,7 @@ static int __init ic_route_ioctl(unsigned int cmd, struct rtentry *arg)
 
    mm_segment_t oldfs = get_fs();
    set_fs(get_ds());
-   res = ip_rt_ioctl(cmd, (void __user *) arg);
+   res = ip_rt_ioctl(&init_net, cmd, (void __user *) arg);
    set_fs(oldfs);
    return res;
 }
@@ -588,6 +592,7 @@ ic_dhcp_init_options(u8 *options)
    u8 mt = ((ic_servaddr == NONE)
        ? DHCPDISCOVER : DHCPREQUEST);
    u8 *e = options;
+   int len;
 
 #ifdef IPCONFIG_DEBUG
    printk("DHCP: Sending message type %d\n", mt);
@@ -628,6 +633,16 @@ ic_dhcp_init_options(u8 *options)
       *e++ = sizeof(ic_req_params);
       memcpy(e, ic_req_params, sizeof(ic_req_params));
       e += sizeof(ic_req_params);
+
+      if (*vendor_class_identifier) {
+         printk(KERN_INFO "DHCP: sending class identifier \"%s\"\n",
+                vendor_class_identifier);
+         *e++ = 60;   /* Class-identifier */
+         len = strlen(vendor_class_identifier);
+         *e++ = len;
+         memcpy(e, vendor_class_identifier, len);
+         e += len;
+      }
    }
 
    *e++ = 255;   /* End of the list */
@@ -739,9 +754,9 @@ static void __init ic_bootp_send_if(struct ic_device *d, unsigned long jiffies_d
       printk("Unknown ARP type 0x%04x for device %s\n", dev->type, dev->name);
       b->htype = dev->type; /* can cause undefined behavior */
    }
+
+   /* server_ip and your_ip address are both already zero per RFC2131 */
    b->hlen = dev->addr_len;
-   b->your_ip = NONE;
-   b->server_ip = NONE;
    memcpy(b->hw_addr, dev->dev_addr, dev->addr_len);
    b->secs = htons(jiffies_diff / HZ);
    b->xid = d->xid;
@@ -1376,7 +1391,7 @@ static int __init ip_auto_config(void)
     * Clue in the operator.
     */
    printk("IP-Config: Complete:");
-   printk("\n      device=%s", ic_dev->name);
+   printk("\n     device=%s", ic_dev->name);
    printk(", addr=%u.%u.%u.%u", NIPQUAD(ic_myaddr));
    printk(", mask=%u.%u.%u.%u", NIPQUAD(ic_netmask));
    printk(", gw=%u.%u.%u.%u", NIPQUAD(ic_gateway));
@@ -1465,19 +1480,19 @@ static int __init ip_auto_config_setup(char *addrs)
          DBG(("IP-Config: Parameter #%d: `%s'\n", num, ip));
          switch (num) {
          case 0:
-            if ((ic_myaddr = in_aton(ip)) == INADDR_ANY)
+            if ((ic_myaddr = in_aton(ip)) == ANY)
                ic_myaddr = NONE;
             break;
          case 1:
-            if ((ic_servaddr = in_aton(ip)) == INADDR_ANY)
+            if ((ic_servaddr = in_aton(ip)) == ANY)
                ic_servaddr = NONE;
             break;
          case 2:
-            if ((ic_gateway = in_aton(ip)) == INADDR_ANY)
+            if ((ic_gateway = in_aton(ip)) == ANY)
                ic_gateway = NONE;
             break;
          case 3:
-            if ((ic_netmask = in_aton(ip)) == INADDR_ANY)
+            if ((ic_netmask = in_aton(ip)) == ANY)
                ic_netmask = NONE;
             break;
          case 4:
@@ -1513,5 +1528,16 @@ static int __init nfsaddrs_config_setup(char *addrs)
    return ip_auto_config_setup(addrs);
 }
 
+static int __init vendor_class_identifier_setup(char *addrs)
+{
+   if (strlcpy(vendor_class_identifier, addrs,
+          sizeof(vendor_class_identifier))
+       >= sizeof(vendor_class_identifier))
+      printk(KERN_WARNING "DHCP: vendorclass too long, truncated to \"%s\"",
+             vendor_class_identifier);
+   return 1;
+}
+
 __setup("ip=", ip_auto_config_setup);
 __setup("nfsaddrs=", nfsaddrs_config_setup);
+__setup("dhcpclass=", vendor_class_identifier_setup);


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