public inbox for devel@edk2.groups.io
 help / color / mirror / Atom feed
* [PATCH v2] NetworkPkg/IpSecDxe: Fix issue to parse SA Payload.
@ 2018-10-18  8:44 Jiaxin Wu
  2018-10-19  7:08 ` Ye, Ting
  0 siblings, 1 reply; 2+ messages in thread
From: Jiaxin Wu @ 2018-10-18  8:44 UTC (permalink / raw)
  To: edk2-devel; +Cc: Fu Siyuan, Ye Ting, Wu Jiaxin

Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=1251

*v2: Correct the type of parameters in Ikev2ParseProposalData(), and refined
the corresponding description.

IpSecDxe failed to create the Child SA during parsing SA Payload, the issue
was caused by the below commit:

SHA-1: 1e0db7b11987d0ec93be7dfe26102a327860fdbd
* MdeModulePkg/NetworkPkg: Checking for NULL pointer before use.

In above commit, it changed the value of IsMatch in Ikev2ChildSaParseSaPayload()
to FALSE. That's correct but it exposed the potential bug in to match the correct
proposal Data, which will cause the issue happen.

Cc: Fu Siyuan <siyuan.fu@intel.com>
Cc: Ye Ting <ting.ye@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Wu Jiaxin <jiaxin.wu@intel.com>
---
 NetworkPkg/IpSecDxe/Ikev2/Utility.c | 64 ++++++++++++++++++-----------
 1 file changed, 41 insertions(+), 23 deletions(-)

diff --git a/NetworkPkg/IpSecDxe/Ikev2/Utility.c b/NetworkPkg/IpSecDxe/Ikev2/Utility.c
index 0c9c929705..63de56f09e 100644
--- a/NetworkPkg/IpSecDxe/Ikev2/Utility.c
+++ b/NetworkPkg/IpSecDxe/Ikev2/Utility.c
@@ -1993,34 +1993,51 @@ Ikev2IsSupportAlg (
 }
 
 /**
   Get the preferred algorithm types from ProposalData.
 
-  @param[in]  ProposalData              Pointer to related IKEV2_PROPOSAL_DATA.
-  @param[out] PreferEncryptAlgorithm    Output of preferred encrypt algorithm.
-  @param[out] PreferIntegrityAlgorithm  Output of preferred integrity algorithm.
-  @param[out] PreferPrfAlgorithm        Output of preferred PRF algorithm. Only
-                                        for IKE SA.
-  @param[out] PreferDhGroup             Output of preferred DH group. Only for
-                                        IKE SA.
-  @param[out] PreferEncryptKeylength    Output of preferred encrypt key length
-                                        in bytes.
-  @param[out] IsSupportEsn              Output of value about the Extented Sequence
-                                        Number is support or not. Only for Child SA.
-  @param[in]  IsChildSa                 If it is ture, the ProposalData is for IKE
-                                        SA. Otherwise the proposalData is for Child SA.
+  @param[in]      ProposalData              Pointer to related IKEV2_PROPOSAL_DATA.
+  @param[in, out] PreferEncryptAlgorithm    Pointer to buffer which is used to store the
+                                            preferred encrypt algorithm.
+                                            Input value shall be initialized to zero that
+                                            indicates to be parsed from ProposalData.
+                                            Output of preferred encrypt algorithm.
+  @param[in, out] PreferIntegrityAlgorithm  Pointer to buffer which is used to store the
+                                            preferred integrity algorithm.
+                                            Input value shall be initialized to zero that
+                                            indicates to be parsed from ProposalData.
+                                            Output of preferred integrity algorithm.
+  @param[in, out] PreferPrfAlgorithm        Pointer to buffer which is used to store the
+                                            preferred PRF algorithm.
+                                            Input value shall be initialized to zero that
+                                            indicates to be parsed from ProposalData.
+                                            Output of preferred PRF algorithm. Only
+                                            for IKE SA.
+  @param[in, out] PreferDhGroup             Pointer to buffer which is used to store the
+                                            preferred DH group.
+                                            Input value shall be initialized to zero that
+                                            indicates to be parsed from ProposalData.
+                                            Output of preferred DH group. Only for
+                                            IKE SA.
+  @param[in, out] PreferEncryptKeylength    Pointer to buffer which is used to store the
+                                            preferred encrypt key length in bytes.
+  @param[in, out] IsSupportEsn              Pointer to buffer which is used to store the
+                                            value about the Extented Sequence Number is
+                                            support or not. Only for Child SA.
+  @param[in]      IsChildSa                 If it is ture, the ProposalData is for IKE
+                                            SA. Otherwise the proposalData is for Child SA.
 
 **/
 VOID
 Ikev2ParseProposalData (
   IN     IKEV2_PROPOSAL_DATA  *ProposalData,
-     OUT UINT16               *PreferEncryptAlgorithm,
-     OUT UINT16               *PreferIntegrityAlgorithm,
-     OUT UINT16               *PreferPrfAlgorithm,
-     OUT UINT16               *PreferDhGroup,
-     OUT UINTN                *PreferEncryptKeylength,
-     OUT BOOLEAN              *IsSupportEsn,
+  IN OUT UINT16               *PreferEncryptAlgorithm,
+  IN OUT UINT16               *PreferIntegrityAlgorithm,
+  IN OUT UINT16               *PreferPrfAlgorithm,
+  IN OUT UINT16               *PreferDhGroup,
+  IN OUT UINTN                *PreferEncryptKeylength,
+  IN OUT BOOLEAN              *IsSupportEsn,
   IN     BOOLEAN              IsChildSa
 )
 {
   IKEV2_TRANSFORM_DATA *TransformData;
   UINT8                TransformIndex;
@@ -2502,15 +2519,16 @@ Ikev2ChildSaParseSaPayload (
           IntegrityAlgorithm == PreferIntegrityAlgorithm &&
           IsSupportEsn == PreferIsSupportEsn
           ) {
         IsMatch = TRUE;
       } else {
-        PreferEncryptAlgorithm   = 0;
-        PreferIntegrityAlgorithm = 0;
-        IsSupportEsn             = TRUE;
+        IntegrityAlgorithm = 0;
+        EncryptAlgorithm   = 0;
+        EncryptKeylength   = 0;
+        IsSupportEsn       = FALSE;
       }
-       ProposalData = (IKEV2_PROPOSAL_DATA*)((UINT8*)(ProposalData + 1) +
+      ProposalData = (IKEV2_PROPOSAL_DATA*)((UINT8*)(ProposalData + 1) +
                      ProposalData->NumTransforms * sizeof (IKEV2_TRANSFORM_DATA));
     }
 
     ProposalData  = (IKEV2_PROPOSAL_DATA *)((IKEV2_SA_DATA *)SaPayload->PayloadBuf + 1);
     if (IsMatch) {
-- 
2.17.1.windows.2



^ permalink raw reply related	[flat|nested] 2+ messages in thread

end of thread, other threads:[~2018-10-19  7:08 UTC | newest]

Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-10-18  8:44 [PATCH v2] NetworkPkg/IpSecDxe: Fix issue to parse SA Payload Jiaxin Wu
2018-10-19  7:08 ` Ye, Ting

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox