diff options
| author | Fu, Siyuan <siyuan.fu@intel.com> | 2014-06-30 07:48:23 +0000 |
|---|---|---|
| committer | sfu5 <sfu5@6f19259b-4bc3-4df7-8a09-765794883524> | 2014-06-30 07:48:23 +0000 |
| commit | 48178d7ab12ad5157500b5b58331175edcd1d400 (patch) | |
| tree | 73eb6084bf21cd2af85b218014771a84b448be2c /MdeModulePkg | |
| parent | 9e2364ef1203f81c8572766d360fb7b10c2cda56 (diff) | |
| download | edk2-platforms-48178d7ab12ad5157500b5b58331175edcd1d400.tar.xz | |
Fix a bug in IP4 driver when computing the network broadcast adress.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Fu, Siyuan <siyuan.fu@intel.com>
Reviewed-By: Ye, Ting <ting.ye@intel.com>
Reviewed-by: Wu, Jiaxin <jiaxin.wu@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15603 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg')
| -rw-r--r-- | MdeModulePkg/Universal/Network/Ip4Dxe/Ip4If.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4If.c b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4If.c index 3c29f75f88..a843150f46 100644 --- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4If.c +++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4If.c @@ -581,9 +581,10 @@ Ip4SetAddress ( Interface->SubnetBrdcast = (IpAddr | ~SubnetMask);
Type = NetGetIpClass (IpAddr);
+ ASSERT (Type <= IP4_ADDR_CLASSC);
Len = NetGetMaskLength (SubnetMask);
- ASSERT (Len >= 1);
- Netmask = gIp4AllMasks[MIN ((Len - 1), Type << 3)];
+ ASSERT (Len < IP4_MASK_NUM);
+ Netmask = gIp4AllMasks[MIN (Len, Type << 3)];
Interface->NetBrdcast = (IpAddr | ~Netmask);
//
|