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| author | qianouyang <qianouyang@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-10-15 05:40:41 +0000 |
|---|---|---|
| committer | qianouyang <qianouyang@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-10-15 05:40:41 +0000 |
| commit | 705f53a9b49e7ee3d1ca4bcc7133534ed64590dc (patch) | |
| tree | d79da69796a730af23def17ffd0de865365d3355 /MdeModulePkg/Library | |
| parent | a72526804846e44773174a7b4800168e889d831a (diff) | |
| download | edk2-705f53a9b49e7ee3d1ca4bcc7133534ed64590dc.zip edk2-705f53a9b49e7ee3d1ca4bcc7133534ed64590dc.tar.gz edk2-705f53a9b49e7ee3d1ca4bcc7133534ed64590dc.tar.bz2 | |
Update IPsec.h file to follow approved ECR which will be collected into future UEFI 2.3 Specification after 2.3 errata B and future UEFI Specifications after 2.3. The changes mainly include:
1. Add EFI_IPSEC2_PROTOCOL
2. Remove IPsec Authentication Algorithm Definition and IPsec Encryption Algorithm
Definition.
3. Add EFI_IPSEC_SA_DATA2 data structure.
And also update IPv4 driver to call EFI_IPSEC2_PROTOCOL.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10941 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/Library')
| -rw-r--r-- | MdeModulePkg/Library/DxeNetLib/NetBuffer.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/MdeModulePkg/Library/DxeNetLib/NetBuffer.c b/MdeModulePkg/Library/DxeNetLib/NetBuffer.c index 43bcae6..bbbdbc0 100644 --- a/MdeModulePkg/Library/DxeNetLib/NetBuffer.c +++ b/MdeModulePkg/Library/DxeNetLib/NetBuffer.c @@ -1842,3 +1842,51 @@ NetIp6PseudoHeadChecksum ( return NetblockChecksum ((UINT8 *) &Hdr, sizeof (Hdr));
}
+/**
+ The function frees the net buffer which allocated by the IP protocol. It releases
+ only the net buffer and doesn't call the external free function.
+
+ This function should be called after finishing the process of mIpSec->ProcessExt()
+ for outbound traffic. The (EFI_IPSEC2_PROTOCOL)->ProcessExt() allocates a new
+ buffer for the ESP, so there needs a function to free the old net buffer.
+
+ @param[in] Nbuf The network buffer to be freed.
+
+**/
+VOID
+NetIpSecNetbufFree (
+ NET_BUF *Nbuf
+ )
+{
+ NET_CHECK_SIGNATURE (Nbuf, NET_BUF_SIGNATURE);
+ ASSERT (Nbuf->RefCnt > 0);
+
+ Nbuf->RefCnt--;
+
+ if (Nbuf->RefCnt == 0) {
+
+ //
+ // Update Vector only when NBuf is to be released. That is,
+ // all the sharing of Nbuf increse Vector's RefCnt by one
+ //
+ NET_CHECK_SIGNATURE (Nbuf->Vector, NET_VECTOR_SIGNATURE);
+ ASSERT (Nbuf->Vector->RefCnt > 0);
+
+ Nbuf->Vector->RefCnt--;
+
+ if (Nbuf->Vector->RefCnt > 0) {
+ return;
+ }
+
+ //
+ // If NET_VECTOR_OWN_FIRST is set, release the first block since it is
+ // allocated by us
+ //
+ if ((Nbuf->Vector->Flag & NET_VECTOR_OWN_FIRST) != 0) {
+ FreePool (Nbuf->Vector->Block[0].Bulk);
+ }
+ FreePool (Nbuf->Vector);
+ FreePool (Nbuf);
+ }
+}
+
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